./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/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 7cac24a49d7b473be85039a3051680fd486b81b3 ............................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:36:37,500 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:36:37,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:36:37,511 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:36:37,512 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:36:37,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:36:37,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:36:37,516 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:36:37,518 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:36:37,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:36:37,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:36:37,521 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:36:37,521 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:36:37,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:36:37,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:36:37,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:36:37,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:36:37,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:36:37,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:36:37,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:36:37,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:36:37,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:36:37,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:36:37,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:36:37,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:36:37,537 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:36:37,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:36:37,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:36:37,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:36:37,539 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:36:37,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:36:37,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:36:37,541 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:36:37,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:36:37,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:36:37,543 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:36:37,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:36:37,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:36:37,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:36:37,549 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:36:37,550 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:36:37,551 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-11-20 05:36:37,570 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:36:37,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:36:37,571 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-20 05:36:37,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-11-20 05:36:37,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:36:37,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:36:37,572 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:36:37,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:36:37,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:36:37,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:36:37,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:36:37,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:36:37,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:36:37,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:36:37,575 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:36:37,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:36:37,575 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:36:37,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:36:37,575 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-11-20 05:36:37,575 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-11-20 05:36:37,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:36:37,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:36:37,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:36:37,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:36:37,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:36:37,577 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:36:37,577 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-11-20 05:36:37,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:36:37,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:36:37,577 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/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 -> 7cac24a49d7b473be85039a3051680fd486b81b3 [2019-11-20 05:36:37,732 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:36:37,742 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:36:37,745 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:36:37,746 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:36:37,747 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:36:37,747 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/../../sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c [2019-11-20 05:36:37,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/data/dfb35801f/f13f3bc628ce410893ac52e4e30cf379/FLAG8c59173e4 [2019-11-20 05:36:38,220 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:36:38,221 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/sv-benchmarks/c/ssh-simplified/s3_srvr_1b.cil.c [2019-11-20 05:36:38,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/data/dfb35801f/f13f3bc628ce410893ac52e4e30cf379/FLAG8c59173e4 [2019-11-20 05:36:38,241 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/data/dfb35801f/f13f3bc628ce410893ac52e4e30cf379 [2019-11-20 05:36:38,243 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:36:38,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:36:38,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:38,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:36:38,249 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:36:38,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25d0b965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38, skipping insertion in model container [2019-11-20 05:36:38,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,260 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:36:38,285 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:36:38,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:38,492 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:36:38,572 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:36:38,587 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:36:38,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38 WrapperNode [2019-11-20 05:36:38,587 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:36:38,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:38,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:36:38,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:36:38,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,599 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:36:38,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:36:38,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:36:38,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:36:38,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:36:38,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:36:38,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:36:38,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:36:38,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:36:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-11-20 05:36:38,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:36:38,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:36:38,972 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:36:38,972 INFO L285 CfgBuilder]: Removed 5 assume(true) statements. [2019-11-20 05:36:38,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:38 BoogieIcfgContainer [2019-11-20 05:36:38,974 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:36:38,974 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-11-20 05:36:38,974 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-11-20 05:36:38,983 INFO L275 PluginConnector]: CodeCheck initialized [2019-11-20 05:36:38,983 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:38" (1/1) ... [2019-11-20 05:36:38,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:36:39,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 16 states and 25 transitions. [2019-11-20 05:36:39,023 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2019-11-20 05:36:39,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-20 05:36:39,026 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:39,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:39,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 18 states and 29 transitions. [2019-11-20 05:36:39,178 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2019-11-20 05:36:39,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 05:36:39,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:39,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 23 states and 42 transitions. [2019-11-20 05:36:39,375 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 42 transitions. [2019-11-20 05:36:39,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 05:36:39,378 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:39,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:39,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2019-11-20 05:36:39,551 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2019-11-20 05:36:39,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 05:36:39,551 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 50 transitions. [2019-11-20 05:36:39,831 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 50 transitions. [2019-11-20 05:36:39,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-20 05:36:39,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:36:39,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:39,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 53 transitions. [2019-11-20 05:36:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 53 transitions. [2019-11-20 05:36:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 05:36:39,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,029 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:40,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 56 transitions. [2019-11-20 05:36:40,149 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2019-11-20 05:36:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 05:36:40,150 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:40,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:40,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 41 states and 73 transitions. [2019-11-20 05:36:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 73 transitions. [2019-11-20 05:36:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-20 05:36:40,581 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:40,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,607 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-11-20 05:36:40,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:40,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 41 states and 70 transitions. [2019-11-20 05:36:40,752 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 70 transitions. [2019-11-20 05:36:40,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-20 05:36:40,753 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,801 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:40,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 43 states and 73 transitions. [2019-11-20 05:36:40,972 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 73 transitions. [2019-11-20 05:36:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 05:36:40,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:40,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:41,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:41,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 45 states and 75 transitions. [2019-11-20 05:36:41,093 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 75 transitions. [2019-11-20 05:36:41,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 05:36:41,094 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:41,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:41,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 48 states and 80 transitions. [2019-11-20 05:36:41,724 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 80 transitions. [2019-11-20 05:36:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-11-20 05:36:41,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:41,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:41,781 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:42,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 53 states and 85 transitions. [2019-11-20 05:36:42,101 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2019-11-20 05:36:42,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:36:42,102 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:42,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:42,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:42,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 51 states and 80 transitions. [2019-11-20 05:36:42,222 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 80 transitions. [2019-11-20 05:36:42,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:36:42,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:42,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:42,359 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:43,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:43,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 58 states and 92 transitions. [2019-11-20 05:36:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 92 transitions. [2019-11-20 05:36:43,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-20 05:36:43,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:43,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:43,391 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:36:43,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:43,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 60 states and 93 transitions. [2019-11-20 05:36:43,571 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 93 transitions. [2019-11-20 05:36:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 05:36:43,571 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:43,582 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:43,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 63 states and 97 transitions. [2019-11-20 05:36:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 97 transitions. [2019-11-20 05:36:43,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 05:36:43,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:43,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:43,996 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:44,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:44,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2019-11-20 05:36:44,193 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2019-11-20 05:36:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 05:36:44,194 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:44,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:44,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:44,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 66 states and 98 transitions. [2019-11-20 05:36:44,373 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 98 transitions. [2019-11-20 05:36:44,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 05:36:44,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:44,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:44,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:44,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 68 states and 99 transitions. [2019-11-20 05:36:44,542 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 99 transitions. [2019-11-20 05:36:44,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:36:44,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:44,681 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:36:45,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:45,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 72 states and 106 transitions. [2019-11-20 05:36:45,006 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 106 transitions. [2019-11-20 05:36:45,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-11-20 05:36:45,007 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:45,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:45,086 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 05:36:45,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 76 states and 109 transitions. [2019-11-20 05:36:45,268 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 109 transitions. [2019-11-20 05:36:45,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:36:45,268 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:46,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 82 states and 119 transitions. [2019-11-20 05:36:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 119 transitions. [2019-11-20 05:36:46,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:36:46,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:46,024 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:46,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:46,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 84 states and 121 transitions. [2019-11-20 05:36:46,197 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2019-11-20 05:36:46,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:36:46,197 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:46,207 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:46,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:46,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 84 states and 120 transitions. [2019-11-20 05:36:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 120 transitions. [2019-11-20 05:36:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-20 05:36:46,380 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:46,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:46,392 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-11-20 05:36:46,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 87 states and 123 transitions. [2019-11-20 05:36:46,537 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 123 transitions. [2019-11-20 05:36:46,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-20 05:36:46,537 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-11-20 05:36:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:36:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 32 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 05:36:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-11-20 05:36:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 76 states and 110 transitions. [2019-11-20 05:36:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 110 transitions. [2019-11-20 05:36:46,671 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:36:46,672 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 27 iterations. [2019-11-20 05:36:46,680 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2019-11-20 05:36:46,914 WARN L191 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2019-11-20 05:36:47,160 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 25 [2019-11-20 05:36:47,313 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2019-11-20 05:36:47,314 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2019-11-20 05:36:47,324 INFO L569 CodeCheckObserver]: Invariant with dag size 25 [2019-11-20 05:36:47,327 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 05:36:47,327 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2019-11-20 05:36:47,328 INFO L569 CodeCheckObserver]: Invariant with dag size 16 [2019-11-20 05:36:47,330 INFO L569 CodeCheckObserver]: Invariant with dag size 25 [2019-11-20 05:36:47,333 INFO L569 CodeCheckObserver]: Invariant with dag size 30 [2019-11-20 05:36:47,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:36:47 ImpRootNode [2019-11-20 05:36:47,347 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-11-20 05:36:47,348 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:36:47,348 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:36:47,348 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:36:47,349 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:36:38" (3/4) ... [2019-11-20 05:36:47,351 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:36:47,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-11-20 05:36:47,363 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 05:36:47,436 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3ec96e47-239e-41e2-aacd-cfd637c548a7/bin/ukojak/witness.graphml [2019-11-20 05:36:47,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:36:47,438 INFO L168 Benchmark]: Toolchain (without parser) took 9193.42 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.6 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -278.0 MB). Peak memory consumption was 36.6 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:47,438 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:36:47,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:47,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.27 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. [2019-11-20 05:36:47,440 INFO L168 Benchmark]: Boogie Preprocessor took 19.35 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. [2019-11-20 05:36:47,441 INFO L168 Benchmark]: RCFGBuilder took 337.80 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:47,444 INFO L168 Benchmark]: CodeCheck took 8373.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -130.3 MB). Peak memory consumption was 451.8 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:47,444 INFO L168 Benchmark]: Witness Printer took 88.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2019-11-20 05:36:47,446 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, 16 locations, 1 error locations. Result: SAFE, OverallTime: 7.6s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 239337984 SDtfs, 483185180 SDslu, 1069022704 SDs, 0 SdLazy, 1205551494 SolverSat, 403545662 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4085 GetRequests, 3825 SyntacticMatches, 66 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19456 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 485 NumberOfCodeBlocks, 485 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 459 ConstructedInterpolants, 0 QuantifiedInterpolants, 19755 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 17 PerfectInterpolantSequences, 301/401 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: 138]: 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: 49]: Loop Invariant Derived loop invariant: blastFlag <= 4 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((!(2 == blastFlag) && blastFlag <= 2) || ((s__hit == 0 || !(s__state == 8512)) && 2 == blastFlag)) || (blastFlag <= 4 && 8656 <= s__state)) || (s__state == 8640 && !(s__hit == 0)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((blastFlag <= 4 && !(s__state == 8640)) || blastFlag <= 2) || (s__state == 8640 && !(s__hit == 0)) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: ((((blastFlag <= 2 && !(s__state == 8512)) || (s__state == 8640 && !(s__hit == 0))) || (s__hit == 0 && 2 == blastFlag)) || (blastFlag <= 4 && 8656 <= s__state)) || (!(2 == blastFlag) && blastFlag <= 2) - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((((((s__state == 8466 && blastFlag <= 2) || (s__state == 8640 && !(s__hit == 0))) || blastFlag <= 0) || ((8512 <= s__state && blastFlag <= 2) && !(s__state == 8512))) || ((s__hit == 0 && 2 == blastFlag) && s__state == 8512)) || (blastFlag <= 4 && 8656 <= s__state)) || ((s__state == 8512 && !(2 == blastFlag)) && blastFlag <= 2) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -184.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.27 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 19.35 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 337.80 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: 33.8 MB). Peak memory consumption was 33.8 MB. Max. memory is 11.5 GB. * CodeCheck took 8373.21 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 180.9 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -130.3 MB). Peak memory consumption was 451.8 MB. Max. memory is 11.5 GB. * Witness Printer took 88.91 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...