./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 .......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:15:14,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:15:14,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:15:14,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:15:14,462 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:15:14,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:15:14,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:15:14,465 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:15:14,467 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:15:14,467 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:15:14,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:15:14,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:15:14,469 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:15:14,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:15:14,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:15:14,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:15:14,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:15:14,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:15:14,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:15:14,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:15:14,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:15:14,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:15:14,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:15:14,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:15:14,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:15:14,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:15:14,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:15:14,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:15:14,481 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:15:14,482 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:15:14,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:15:14,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:15:14,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:15:14,484 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:15:14,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:15:14,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:15:14,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:15:14,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:15:14,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:15:14,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:15:14,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:15:14,488 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:15:14,499 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:15:14,499 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:15:14,500 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:15:14,500 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:15:14,501 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:15:14,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:15:14,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:15:14,501 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:15:14,501 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:15:14,502 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:15:14,503 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:15:14,503 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:15:14,503 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:15:14,503 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:15:14,503 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:15:14,504 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:15:14,504 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:15:14,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:14,504 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:15:14,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:15:14,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:15:14,505 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:15:14,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:15:14,505 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:15:14,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-10-22 10:15:14,528 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:15:14,538 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:15:14,540 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:15:14,542 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:15:14,542 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:15:14,543 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/../../sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-22 10:15:14,583 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/data/7eb6f9950/51aec114201d4af49c26ff15f539070f/FLAG6846d096f [2019-10-22 10:15:14,946 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:15:14,947 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/sv-benchmarks/c/loop-invgen/id_build.i.v+lhb-reducer.c [2019-10-22 10:15:14,952 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/data/7eb6f9950/51aec114201d4af49c26ff15f539070f/FLAG6846d096f [2019-10-22 10:15:15,368 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/data/7eb6f9950/51aec114201d4af49c26ff15f539070f [2019-10-22 10:15:15,370 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:15:15,373 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:15:15,374 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:15,374 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:15:15,377 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:15:15,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,384 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bb0c2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15, skipping insertion in model container [2019-10-22 10:15:15,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,390 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:15:15,406 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:15:15,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:15,528 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:15:15,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:15:15,613 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:15:15,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15 WrapperNode [2019-10-22 10:15:15,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:15:15,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:15,615 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:15:15,615 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:15:15,623 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,627 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,644 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:15:15,645 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:15:15,645 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:15:15,645 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:15:15,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:15:15,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:15:15,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:15:15,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:15:15,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:15:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:15:15,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:15:15,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:15:15,951 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:15:15,952 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:15:15,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15 BoogieIcfgContainer [2019-10-22 10:15:15,953 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:15:15,953 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:15:15,953 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:15:15,975 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:15:15,977 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15" (1/1) ... [2019-10-22 10:15:15,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:15:16,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2019-10-22 10:15:16,025 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2019-10-22 10:15:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:15:16,028 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:16,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:16,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2019-10-22 10:15:16,254 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-10-22 10:15:16,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:15:16,254 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:16,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:16,496 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2019-10-22 10:15:16,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:16,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2019-10-22 10:15:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-10-22 10:15:16,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:15:16,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:16,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:16,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:17,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:17,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2019-10-22 10:15:17,026 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2019-10-22 10:15:17,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:15:17,027 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:17,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:17,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2019-10-22 10:15:17,428 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2019-10-22 10:15:17,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:15:17,428 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:18,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:18,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 26 states and 31 transitions. [2019-10-22 10:15:18,119 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-10-22 10:15:18,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:15:18,119 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:18,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:18,159 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-22 10:15:18,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:18,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2019-10-22 10:15:18,281 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2019-10-22 10:15:18,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:15:18,281 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:18,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:18,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:18,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2019-10-22 10:15:18,896 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-10-22 10:15:18,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-22 10:15:18,897 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:18,959 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:19,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:19,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 28 states and 32 transitions. [2019-10-22 10:15:19,428 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2019-10-22 10:15:19,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-10-22 10:15:19,429 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:19,507 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:20,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 32 states and 36 transitions. [2019-10-22 10:15:20,046 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2019-10-22 10:15:20,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-22 10:15:20,046 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:20,123 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 19 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:20,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:20,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 36 states and 40 transitions. [2019-10-22 10:15:20,860 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2019-10-22 10:15:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-10-22 10:15:20,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 23 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:21,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:21,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2019-10-22 10:15:21,774 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2019-10-22 10:15:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-10-22 10:15:21,775 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:21,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:21,896 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:15:22,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:22,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 44 states and 47 transitions. [2019-10-22 10:15:22,574 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-10-22 10:15:22,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-10-22 10:15:22,575 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:15:22,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:15:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 23 proven. 8 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-10-22 10:15:22,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:15:22,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 38 states and 40 transitions. [2019-10-22 10:15:22,906 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2019-10-22 10:15:22,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:15:22,906 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 14 iterations. [2019-10-22 10:15:22,915 INFO L771 CodeCheckObserver]: All specifications hold 3 specifications checked. All of them hold [2019-10-22 10:15:23,018 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:15:23,022 INFO L575 CodeCheckObserver]: Invariant with dag size 3 [2019-10-22 10:15:23,027 INFO L575 CodeCheckObserver]: Invariant with dag size 6 [2019-10-22 10:15:23,028 INFO L575 CodeCheckObserver]: Invariant with dag size 6 [2019-10-22 10:15:23,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:15:23 ImpRootNode [2019-10-22 10:15:23,028 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:15:23,029 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:15:23,029 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:15:23,029 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:15:23,030 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:15:15" (3/4) ... [2019-10-22 10:15:23,033 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:15:23,041 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 10:15:23,042 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:15:23,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_98c132cb-5547-4bcc-b914-07eddd493547/bin/ukojak/witness.graphml [2019-10-22 10:15:23,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:15:23,081 INFO L168 Benchmark]: Toolchain (without parser) took 7710.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.7 MB). Free memory was 944.5 MB in the beginning and 1.0 GB in the end (delta: -63.1 MB). Peak memory consumption was 145.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:23,082 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:15:23,082 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:23,083 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.88 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. [2019-10-22 10:15:23,083 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 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. [2019-10-22 10:15:23,083 INFO L168 Benchmark]: RCFGBuilder took 287.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:23,084 INFO L168 Benchmark]: CodeCheck took 7075.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.3 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:23,084 INFO L168 Benchmark]: Witness Printer took 51.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:15:23,086 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 17 locations, 3 error locations. Result: SAFE, OverallTime: 6.9s, OverallIterations: 14, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27136 SDtfs, 46954 SDslu, 12288 SDs, 0 SdLazy, 241714 SolverSat, 66300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2147 GetRequests, 1854 SyntacticMatches, 139 SemanticMatches, 154 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8117 ImplicationChecksByTransitivity, 5.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 248 ConstructedInterpolants, 0 QuantifiedInterpolants, 17360 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 237/450 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: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 <= main__i && main__i < main__nlen * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 240.24 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -190.6 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 29.88 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. * Boogie Preprocessor took 20.29 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. * RCFGBuilder took 287.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 11.5 GB. * CodeCheck took 7075.23 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 105.3 MB). Peak memory consumption was 175.0 MB. Max. memory is 11.5 GB. * Witness Printer took 51.44 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...