./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.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_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/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 75f71671f83387eb35a445031d63abe79f5c0c7c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:12:02,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:02,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:02,032 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:02,033 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:02,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:02,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:02,039 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:02,040 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:02,041 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:02,044 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:02,045 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:02,045 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:02,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:02,047 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:02,048 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:02,049 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:02,050 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:02,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:02,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:02,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:02,056 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:02,057 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:02,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:02,068 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:02,068 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:02,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:02,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:02,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:02,075 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:02,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:02,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:02,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:02,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:02,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:02,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:02,078 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:02,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:02,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:02,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:02,080 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:02,081 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:12:02,105 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:02,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:02,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:12:02,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:12:02,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:02,107 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:02,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:02,107 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:02,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:12:02,109 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:12:02,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:12:02,109 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:02,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:12:02,110 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:02,111 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:02,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:02,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:02,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:02,111 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:02,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:02,112 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:12:02,112 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:02,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:02,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:12:02,112 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_61c85de1-d397-4526-b3ea-371ca01c8932/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 -> 75f71671f83387eb35a445031d63abe79f5c0c7c [2019-10-22 10:12:02,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:02,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:02,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:02,161 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:02,162 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:02,162 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2019-10-22 10:12:02,223 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/data/c1822fdc9/4f4b7f5159b44321b0c60bb49bcd1b8f/FLAG82f999fc4 [2019-10-22 10:12:02,636 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:02,637 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/sv-benchmarks/c/loop-invgen/apache-get-tag.i.v+lhb-reducer.c [2019-10-22 10:12:02,644 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/data/c1822fdc9/4f4b7f5159b44321b0c60bb49bcd1b8f/FLAG82f999fc4 [2019-10-22 10:12:03,008 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/data/c1822fdc9/4f4b7f5159b44321b0c60bb49bcd1b8f [2019-10-22 10:12:03,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:03,012 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:03,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:03,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:03,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:03,019 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,022 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b6bbafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03, skipping insertion in model container [2019-10-22 10:12:03,022 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,031 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:03,071 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:03,362 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:03,367 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:03,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:03,420 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:03,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03 WrapperNode [2019-10-22 10:12:03,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:03,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:03,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:03,422 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:03,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:03,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:03,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:03,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:03,477 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... [2019-10-22 10:12:03,503 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:03,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:03,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:03,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:03,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/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 10:12:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:03,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:04,037 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:04,037 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 10:12:04,038 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:04 BoogieIcfgContainer [2019-10-22 10:12:04,039 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:04,039 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:04,039 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:04,051 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:04,051 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:04" (1/1) ... [2019-10-22 10:12:04,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:04,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:04,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 73 states and 102 transitions. [2019-10-22 10:12:04,089 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 102 transitions. [2019-10-22 10:12:04,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:04,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:04,257 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 10:12:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:04,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 71 states and 99 transitions. [2019-10-22 10:12:04,323 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2019-10-22 10:12:04,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:04,323 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:04,373 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 10:12:04,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:04,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 69 states and 96 transitions. [2019-10-22 10:12:04,430 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2019-10-22 10:12:04,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:04,430 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:04,534 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 10:12:04,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:04,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2019-10-22 10:12:04,929 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2019-10-22 10:12:04,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:04,930 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:04,992 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 10:12:05,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:05,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 75 states and 105 transitions. [2019-10-22 10:12:05,228 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2019-10-22 10:12:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:05,229 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:05,294 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 10:12:05,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:05,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 77 states and 107 transitions. [2019-10-22 10:12:05,351 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 107 transitions. [2019-10-22 10:12:05,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:05,352 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:05,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:05,450 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 10:12:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 75 states and 104 transitions. [2019-10-22 10:12:05,641 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 104 transitions. [2019-10-22 10:12:05,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:05,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:05,712 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 10:12:05,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 76 states and 104 transitions. [2019-10-22 10:12:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 104 transitions. [2019-10-22 10:12:05,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:05,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:05,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:05,830 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 10:12:06,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:06,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 74 states and 101 transitions. [2019-10-22 10:12:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 101 transitions. [2019-10-22 10:12:06,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:06,008 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:06,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:06,206 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 10:12:06,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:06,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 79 states and 107 transitions. [2019-10-22 10:12:06,979 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 107 transitions. [2019-10-22 10:12:06,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:06,982 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:06,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:07,053 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 10:12:07,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 81 states and 108 transitions. [2019-10-22 10:12:07,250 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 108 transitions. [2019-10-22 10:12:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:07,251 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:07,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:07,320 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 10:12:07,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:07,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 84 states and 112 transitions. [2019-10-22 10:12:07,373 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 112 transitions. [2019-10-22 10:12:07,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:07,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:07,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:07,540 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 10:12:07,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 86 states and 114 transitions. [2019-10-22 10:12:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 114 transitions. [2019-10-22 10:12:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:12:07,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:07,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:07,711 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 10:12:08,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:08,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 92 states and 123 transitions. [2019-10-22 10:12:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 123 transitions. [2019-10-22 10:12:08,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:12:08,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:08,415 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 10:12:08,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 94 states and 125 transitions. [2019-10-22 10:12:08,538 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 125 transitions. [2019-10-22 10:12:08,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:12:08,539 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:08,624 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 10:12:08,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:08,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 97 states and 128 transitions. [2019-10-22 10:12:08,951 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 128 transitions. [2019-10-22 10:12:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-22 10:12:08,952 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:09,036 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 10:12:09,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:09,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 100 states and 131 transitions. [2019-10-22 10:12:09,334 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 131 transitions. [2019-10-22 10:12:09,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:09,335 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:09,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:09,373 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 10:12:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:09,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 103 states and 137 transitions. [2019-10-22 10:12:09,971 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 137 transitions. [2019-10-22 10:12:09,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:09,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:09,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:10,006 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 10:12:10,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:10,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 88 states and 114 transitions. [2019-10-22 10:12:10,448 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 114 transitions. [2019-10-22 10:12:10,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 10:12:10,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:10,748 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 10:12:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:11,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 92 states and 121 transitions. [2019-10-22 10:12:11,420 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2019-10-22 10:12:11,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:12:11,421 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:11,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:11,505 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 10:12:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 95 states and 125 transitions. [2019-10-22 10:12:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 125 transitions. [2019-10-22 10:12:12,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:12:12,224 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:12,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:12,330 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 10:12:12,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:12,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 93 states and 122 transitions. [2019-10-22 10:12:12,609 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2019-10-22 10:12:12,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:12:12,609 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:12,663 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:13,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:13,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 96 states and 128 transitions. [2019-10-22 10:12:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 128 transitions. [2019-10-22 10:12:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-22 10:12:13,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:13,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:13,254 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:13,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:13,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 66 states and 80 transitions. [2019-10-22 10:12:13,283 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 80 transitions. [2019-10-22 10:12:13,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:12:13,284 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:13,400 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-22 10:12:14,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:14,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 55 states and 69 transitions. [2019-10-22 10:12:14,207 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2019-10-22 10:12:14,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 10:12:14,207 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:14,302 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 10:12:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 55 states and 68 transitions. [2019-10-22 10:12:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2019-10-22 10:12:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-10-22 10:12:15,086 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,191 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 10:12:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:15,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 54 states and 66 transitions. [2019-10-22 10:12:15,731 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 66 transitions. [2019-10-22 10:12:15,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:12:15,731 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:12:16,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 57 states and 69 transitions. [2019-10-22 10:12:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2019-10-22 10:12:16,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-10-22 10:12:16,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:16,660 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-22 10:12:16,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2019-10-22 10:12:16,764 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-10-22 10:12:16,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:12:16,764 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 29 iterations. [2019-10-22 10:12:16,772 INFO L771 CodeCheckObserver]: All specifications hold 18 specifications checked. All of them hold [2019-10-22 10:12:16,853 INFO L575 CodeCheckObserver]: Invariant with dag size 6 [2019-10-22 10:12:16,861 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:16,861 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:12:16,861 INFO L575 CodeCheckObserver]: Invariant with dag size 7 [2019-10-22 10:12:16,862 INFO L575 CodeCheckObserver]: Invariant with dag size 8 [2019-10-22 10:12:16,862 INFO L575 CodeCheckObserver]: Invariant with dag size 8 [2019-10-22 10:12:16,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:16 ImpRootNode [2019-10-22 10:12:16,863 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:16,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:16,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:16,863 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:16,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:04" (3/4) ... [2019-10-22 10:12:16,867 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:12:16,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-10-22 10:12:16,878 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 10:12:16,961 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_61c85de1-d397-4526-b3ea-371ca01c8932/bin/ukojak/witness.graphml [2019-10-22 10:12:16,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:16,966 INFO L168 Benchmark]: Toolchain (without parser) took 13953.32 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 276.3 MB). Free memory was 944.5 MB in the beginning and 866.0 MB in the end (delta: 78.5 MB). Peak memory consumption was 354.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,967 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:12:16,967 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.02 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 10:12:16,968 INFO L168 Benchmark]: Boogie Preprocessor took 37.06 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,968 INFO L168 Benchmark]: RCFGBuilder took 534.73 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,968 INFO L168 Benchmark]: CodeCheck took 12823.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.3 MB). Free memory was 1.1 GB in the beginning and 877.1 MB in the end (delta: 224.1 MB). Peak memory consumption was 359.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,968 INFO L168 Benchmark]: Witness Printer took 101.29 ms. Allocated memory is still 1.3 GB. Free memory was 877.1 MB in the beginning and 866.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:16,970 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, 73 locations, 18 error locations. Result: SAFE, OverallTime: 12.6s, OverallIterations: 29, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1547691264 SDtfs, 1557419936 SDslu, 205079448 SDs, 0 SdLazy, -1470001772 SolverSat, -2106650784 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3140 GetRequests, 2718 SyntacticMatches, 196 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20456 ImplicationChecksByTransitivity, 11.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 378 NumberOfCodeBlocks, 378 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 15445 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 23 PerfectInterpolantSequences, 6/12 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: 373]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 231]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 273]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 79]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 109]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 183]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 137]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 171]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 219]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 149]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 328]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 292]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 304]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 67]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 47]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 340]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 361]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: main__t <= main__tagbuf_len && 1 <= main__t - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 1 <= main__t && main__t + 1 <= main__tagbuf_len - InvariantResult [Line: 277]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: main__t + 1 <= main__tagbuf_len && 0 <= main__t * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 407.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -191.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.02 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 37.06 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 534.73 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: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * CodeCheck took 12823.57 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 135.3 MB). Free memory was 1.1 GB in the beginning and 877.1 MB in the end (delta: 224.1 MB). Peak memory consumption was 359.4 MB. Max. memory is 11.5 GB. * Witness Printer took 101.29 ms. Allocated memory is still 1.3 GB. Free memory was 877.1 MB in the beginning and 866.0 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...