./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i --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/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/apache-get-tag.i -s /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 01c80fcdd0a0da14cc25a34188deb5573e4a4209 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-11-15 22:14:11,936 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-15 22:14:11,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-15 22:14:11,957 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-15 22:14:11,958 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-15 22:14:11,959 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-15 22:14:11,962 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-15 22:14:11,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-15 22:14:11,979 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-15 22:14:11,982 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-15 22:14:11,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-15 22:14:11,987 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-15 22:14:11,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-15 22:14:11,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-15 22:14:11,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-15 22:14:11,994 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-15 22:14:11,995 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-15 22:14:11,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-15 22:14:12,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-15 22:14:12,005 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-15 22:14:12,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-15 22:14:12,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-15 22:14:12,015 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-15 22:14:12,016 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-15 22:14:12,019 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-15 22:14:12,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-15 22:14:12,020 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-15 22:14:12,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-15 22:14:12,022 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-15 22:14:12,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-15 22:14:12,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-15 22:14:12,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-15 22:14:12,025 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-15 22:14:12,026 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-15 22:14:12,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-15 22:14:12,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-15 22:14:12,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-15 22:14:12,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-15 22:14:12,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-15 22:14:12,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-15 22:14:12,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-15 22:14:12,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-15 22:14:12,061 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-15 22:14:12,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-15 22:14:12,063 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-15 22:14:12,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-15 22:14:12,063 INFO L138 SettingsManager]: * Use SBE=true [2019-11-15 22:14:12,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-15 22:14:12,064 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-15 22:14:12,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-15 22:14:12,064 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-15 22:14:12,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-15 22:14:12,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-15 22:14:12,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-15 22:14:12,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-15 22:14:12,065 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-15 22:14:12,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-15 22:14:12,066 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-15 22:14:12,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-15 22:14:12,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-15 22:14:12,066 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-15 22:14:12,067 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-15 22:14:12,067 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-15 22:14:12,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-15 22:14:12,068 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-15 22:14:12,068 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-15 22:14:12,068 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-15 22:14:12,068 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-15 22:14:12,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-15 22:14:12,069 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-15 22:14:12,069 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_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer 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 -> Automizer 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 -> 01c80fcdd0a0da14cc25a34188deb5573e4a4209 [2019-11-15 22:14:12,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-15 22:14:12,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-15 22:14:12,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-15 22:14:12,119 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-15 22:14:12,119 INFO L275 PluginConnector]: CDTParser initialized [2019-11-15 22:14:12,120 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-15 22:14:12,186 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/data/df8e8d499/89d0a1177e9b48b98c54eb015538439b/FLAG1a7be2274 [2019-11-15 22:14:12,673 INFO L306 CDTParser]: Found 1 translation units. [2019-11-15 22:14:12,674 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/sv-benchmarks/c/loop-invgen/apache-get-tag.i [2019-11-15 22:14:12,688 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/data/df8e8d499/89d0a1177e9b48b98c54eb015538439b/FLAG1a7be2274 [2019-11-15 22:14:12,997 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/data/df8e8d499/89d0a1177e9b48b98c54eb015538439b [2019-11-15 22:14:13,000 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-15 22:14:13,002 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-15 22:14:13,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-15 22:14:13,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-15 22:14:13,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-15 22:14:13,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:14:12" (1/1) ... [2019-11-15 22:14:13,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a52aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13, skipping insertion in model container [2019-11-15 22:14:13,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.11 10:14:12" (1/1) ... [2019-11-15 22:14:13,021 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-15 22:14:13,043 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-15 22:14:13,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:14:13,387 INFO L188 MainTranslator]: Completed pre-run [2019-11-15 22:14:13,411 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-15 22:14:13,425 INFO L192 MainTranslator]: Completed translation [2019-11-15 22:14:13,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13 WrapperNode [2019-11-15 22:14:13,426 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-15 22:14:13,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-15 22:14:13,428 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-15 22:14:13,428 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-15 22:14:13,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-15 22:14:13,488 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-15 22:14:13,488 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-15 22:14:13,488 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-15 22:14:13,499 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,501 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... [2019-11-15 22:14:13,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-15 22:14:13,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-15 22:14:13,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-15 22:14:13,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-15 22:14:13,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (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:2000 [2019-11-15 22:14:13,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-15 22:14:13,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-15 22:14:13,979 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-15 22:14:13,979 INFO L284 CfgBuilder]: Removed 38 assume(true) statements. [2019-11-15 22:14:13,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:13 BoogieIcfgContainer [2019-11-15 22:14:13,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-15 22:14:13,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-15 22:14:13,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-15 22:14:13,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-15 22:14:13,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.11 10:14:12" (1/3) ... [2019-11-15 22:14:13,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d286df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:14:13, skipping insertion in model container [2019-11-15 22:14:13,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.11 10:14:13" (2/3) ... [2019-11-15 22:14:13,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d286df7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.11 10:14:13, skipping insertion in model container [2019-11-15 22:14:13,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:13" (3/3) ... [2019-11-15 22:14:13,989 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i [2019-11-15 22:14:14,001 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-15 22:14:14,025 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-11-15 22:14:14,036 INFO L249 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-11-15 22:14:14,065 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-15 22:14:14,065 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-15 22:14:14,065 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-15 22:14:14,066 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-15 22:14:14,066 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-15 22:14:14,066 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-15 22:14:14,066 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-15 22:14:14,066 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-15 22:14:14,090 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states. [2019-11-15 22:14:14,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-15 22:14:14,097 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:14:14,098 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:14,101 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:14:14,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:14,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1542222103, now seen corresponding path program 1 times [2019-11-15 22:14:14,118 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:14,118 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099303780] [2019-11-15 22:14:14,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,119 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:14,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:14,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:14:14,315 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099303780] [2019-11-15 22:14:14,316 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:14,317 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:14:14,317 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467071420] [2019-11-15 22:14:14,321 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:14:14,321 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:14,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:14:14,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:14:14,337 INFO L87 Difference]: Start difference. First operand 79 states. Second operand 4 states. [2019-11-15 22:14:14,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:14,573 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2019-11-15 22:14:14,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-15 22:14:14,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-15 22:14:14,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:14:14,587 INFO L225 Difference]: With dead ends: 147 [2019-11-15 22:14:14,587 INFO L226 Difference]: Without dead ends: 63 [2019-11-15 22:14:14,591 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:14:14,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-15 22:14:14,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2019-11-15 22:14:14,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-15 22:14:14,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 62 transitions. [2019-11-15 22:14:14,638 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 62 transitions. Word has length 7 [2019-11-15 22:14:14,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:14:14,639 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 62 transitions. [2019-11-15 22:14:14,639 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:14:14,639 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 62 transitions. [2019-11-15 22:14:14,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-15 22:14:14,640 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:14:14,640 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:14,641 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:14:14,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:14,642 INFO L82 PathProgramCache]: Analyzing trace with hash -311568052, now seen corresponding path program 1 times [2019-11-15 22:14:14,642 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:14,642 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823386963] [2019-11-15 22:14:14,642 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,643 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,643 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:14,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:14:14,683 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823386963] [2019-11-15 22:14:14,683 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:14,683 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-15 22:14:14,683 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66822350] [2019-11-15 22:14:14,685 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-15 22:14:14,685 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:14,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-15 22:14:14,686 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-15 22:14:14,686 INFO L87 Difference]: Start difference. First operand 59 states and 62 transitions. Second operand 4 states. [2019-11-15 22:14:14,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:14,818 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2019-11-15 22:14:14,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-15 22:14:14,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-15 22:14:14,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:14:14,819 INFO L225 Difference]: With dead ends: 63 [2019-11-15 22:14:14,819 INFO L226 Difference]: Without dead ends: 48 [2019-11-15 22:14:14,820 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:14:14,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-11-15 22:14:14,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 44. [2019-11-15 22:14:14,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-11-15 22:14:14,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 47 transitions. [2019-11-15 22:14:14,828 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 47 transitions. Word has length 9 [2019-11-15 22:14:14,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:14:14,829 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 47 transitions. [2019-11-15 22:14:14,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-15 22:14:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 47 transitions. [2019-11-15 22:14:14,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-15 22:14:14,830 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:14:14,830 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:14,831 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:14:14,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:14,831 INFO L82 PathProgramCache]: Analyzing trace with hash -390964457, now seen corresponding path program 1 times [2019-11-15 22:14:14,832 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:14,832 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577417024] [2019-11-15 22:14:14,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,832 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:14,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:14,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:14,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:14:14,905 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577417024] [2019-11-15 22:14:14,905 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-15 22:14:14,905 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-15 22:14:14,906 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972727534] [2019-11-15 22:14:14,906 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-15 22:14:14,906 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:14,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-15 22:14:14,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-15 22:14:14,907 INFO L87 Difference]: Start difference. First operand 44 states and 47 transitions. Second operand 5 states. [2019-11-15 22:14:15,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:15,038 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2019-11-15 22:14:15,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-15 22:14:15,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-15 22:14:15,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:14:15,040 INFO L225 Difference]: With dead ends: 60 [2019-11-15 22:14:15,040 INFO L226 Difference]: Without dead ends: 56 [2019-11-15 22:14:15,040 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-15 22:14:15,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-15 22:14:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2019-11-15 22:14:15,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2019-11-15 22:14:15,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 58 transitions. [2019-11-15 22:14:15,050 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 58 transitions. Word has length 10 [2019-11-15 22:14:15,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:14:15,050 INFO L462 AbstractCegarLoop]: Abstraction has 54 states and 58 transitions. [2019-11-15 22:14:15,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-15 22:14:15,050 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 58 transitions. [2019-11-15 22:14:15,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-15 22:14:15,058 INFO L372 BasicCegarLoop]: Found error trace [2019-11-15 22:14:15,059 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2019-11-15 22:14:15,060 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-15 22:14:15,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-15 22:14:15,061 INFO L82 PathProgramCache]: Analyzing trace with hash -817718909, now seen corresponding path program 1 times [2019-11-15 22:14:15,062 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-15 22:14:15,062 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845225319] [2019-11-15 22:14:15,062 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:15,063 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-15 22:14:15,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-15 22:14:15,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:15,174 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-15 22:14:15,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845225319] [2019-11-15 22:14:15,174 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534375872] [2019-11-15 22:14:15,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:14:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-15 22:14:15,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 19 conjunts are in the unsatisfiable core [2019-11-15 22:14:15,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-15 22:14:15,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:14:15,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-15 22:14:15,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-15 22:14:15,524 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-15 22:14:15,524 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9] total 13 [2019-11-15 22:14:15,525 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898911758] [2019-11-15 22:14:15,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-15 22:14:15,525 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-15 22:14:15,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-15 22:14:15,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2019-11-15 22:14:15,529 INFO L87 Difference]: Start difference. First operand 54 states and 58 transitions. Second operand 13 states. [2019-11-15 22:14:15,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-15 22:14:15,788 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2019-11-15 22:14:15,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-15 22:14:15,789 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2019-11-15 22:14:15,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-15 22:14:15,790 INFO L225 Difference]: With dead ends: 54 [2019-11-15 22:14:15,790 INFO L226 Difference]: Without dead ends: 0 [2019-11-15 22:14:15,791 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2019-11-15 22:14:15,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-15 22:14:15,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-15 22:14:15,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-15 22:14:15,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-15 22:14:15,792 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-11-15 22:14:15,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-15 22:14:15,792 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-15 22:14:15,792 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-15 22:14:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-15 22:14:15,793 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-15 22:14:15,999 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-15 22:14:16,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-15 22:14:16,380 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,381 INFO L443 ceAbstractionStarter]: For program point L52(lines 52 54) no Hoare annotation was computed. [2019-11-15 22:14:16,381 INFO L443 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2019-11-15 22:14:16,381 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-15 22:14:16,381 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,381 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,382 INFO L439 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,382 INFO L443 ceAbstractionStarter]: For program point L4-3(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,382 INFO L443 ceAbstractionStarter]: For program point L4-6(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,383 INFO L439 ceAbstractionStarter]: At program point L4-8(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,383 INFO L443 ceAbstractionStarter]: For program point L4-9(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,383 INFO L439 ceAbstractionStarter]: At program point L4-11(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,383 INFO L443 ceAbstractionStarter]: For program point L4-12(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,384 INFO L439 ceAbstractionStarter]: At program point L4-14(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,384 INFO L443 ceAbstractionStarter]: For program point L4-15(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,384 INFO L439 ceAbstractionStarter]: At program point L4-17(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,384 INFO L443 ceAbstractionStarter]: For program point L4-18(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,385 INFO L439 ceAbstractionStarter]: At program point L4-20(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,385 INFO L443 ceAbstractionStarter]: For program point L4-21(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,385 INFO L443 ceAbstractionStarter]: For program point L4-24(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,385 INFO L439 ceAbstractionStarter]: At program point L4-26(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,385 INFO L443 ceAbstractionStarter]: For program point L4-27(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,389 INFO L439 ceAbstractionStarter]: At program point L4-29(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,390 INFO L443 ceAbstractionStarter]: For program point L4-30(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,390 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,390 INFO L443 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,390 INFO L439 ceAbstractionStarter]: At program point L4-32(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,391 INFO L443 ceAbstractionStarter]: For program point L5-2(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,391 INFO L443 ceAbstractionStarter]: For program point L4-33(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,391 INFO L443 ceAbstractionStarter]: For program point L5-3(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,392 INFO L443 ceAbstractionStarter]: For program point L5-4(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,392 INFO L443 ceAbstractionStarter]: For program point L5-5(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,393 INFO L443 ceAbstractionStarter]: For program point L4-36(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,393 INFO L443 ceAbstractionStarter]: For program point L5-6(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,393 INFO L443 ceAbstractionStarter]: For program point L5-7(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,394 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,394 INFO L439 ceAbstractionStarter]: At program point L4-38(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,394 INFO L443 ceAbstractionStarter]: For program point L5-8(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,394 INFO L443 ceAbstractionStarter]: For program point L4-39(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,395 INFO L443 ceAbstractionStarter]: For program point L5-9(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,395 INFO L443 ceAbstractionStarter]: For program point L5-10(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,395 INFO L439 ceAbstractionStarter]: At program point L4-41(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,395 INFO L443 ceAbstractionStarter]: For program point L5-11(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,395 INFO L443 ceAbstractionStarter]: For program point L4-42(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,396 INFO L443 ceAbstractionStarter]: For program point L5-12(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,396 INFO L443 ceAbstractionStarter]: For program point L5-13(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,396 INFO L439 ceAbstractionStarter]: At program point L4-44(lines 3 8) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (not (= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,396 INFO L443 ceAbstractionStarter]: For program point L5-14(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,397 INFO L443 ceAbstractionStarter]: For program point L4-45(lines 4 6) no Hoare annotation was computed. [2019-11-15 22:14:16,397 INFO L443 ceAbstractionStarter]: For program point L5-15(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,397 INFO L446 ceAbstractionStarter]: At program point L4-47(lines 3 8) the Hoare annotation is: true [2019-11-15 22:14:16,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,399 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,399 INFO L443 ceAbstractionStarter]: For program point L40(lines 40 54) no Hoare annotation was computed. [2019-11-15 22:14:16,399 INFO L443 ceAbstractionStarter]: For program point L40-1(lines 40 54) no Hoare annotation was computed. [2019-11-15 22:14:16,399 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-15 22:14:16,400 INFO L443 ceAbstractionStarter]: For program point L41(lines 41 50) no Hoare annotation was computed. [2019-11-15 22:14:16,405 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-15 22:14:16,405 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,406 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,406 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-15 22:14:16,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,407 INFO L443 ceAbstractionStarter]: For program point L45(lines 45 49) no Hoare annotation was computed. [2019-11-15 22:14:16,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,407 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,408 INFO L446 ceAbstractionStarter]: At program point L62(lines 10 63) the Hoare annotation is: true [2019-11-15 22:14:16,408 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,408 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-15 22:14:16,408 INFO L443 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2019-11-15 22:14:16,409 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,409 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,418 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,418 INFO L439 ceAbstractionStarter]: At program point L34-2(lines 34 58) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 1 ULTIMATE.start_main_~tagbuf_len~0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,418 INFO L443 ceAbstractionStarter]: For program point L34-3(lines 34 58) no Hoare annotation was computed. [2019-11-15 22:14:16,418 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-15 22:14:16,419 INFO L439 ceAbstractionStarter]: At program point L18-2(lines 18 30) the Hoare annotation is: (and (<= ULTIMATE.start_main_~t~0 ULTIMATE.start_main_~tagbuf_len~0) (<= 0 ULTIMATE.start_main_~t~0)) [2019-11-15 22:14:16,419 INFO L443 ceAbstractionStarter]: For program point L18-3(lines 18 30) no Hoare annotation was computed. [2019-11-15 22:14:16,419 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2019-11-15 22:14:16,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.11 10:14:16 BoogieIcfgContainer [2019-11-15 22:14:16,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-15 22:14:16,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-15 22:14:16,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-15 22:14:16,458 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-15 22:14:16,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.11 10:14:13" (3/4) ... [2019-11-15 22:14:16,474 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-15 22:14:16,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2019-11-15 22:14:16,499 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-15 22:14:16,597 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4a6a64d8-e292-4ffe-8ecb-25fe0170f0d1/bin/uautomizer/witness.graphml [2019-11-15 22:14:16,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-15 22:14:16,600 INFO L168 Benchmark]: Toolchain (without parser) took 3598.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 939.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 157.9 MB. Max. memory is 11.5 GB. [2019-11-15 22:14:16,601 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-15 22:14:16,601 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2019-11-15 22:14:16,602 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.93 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. [2019-11-15 22:14:16,602 INFO L168 Benchmark]: Boogie Preprocessor took 39.96 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. [2019-11-15 22:14:16,603 INFO L168 Benchmark]: RCFGBuilder took 452.97 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:14:16,603 INFO L168 Benchmark]: TraceAbstraction took 2474.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. [2019-11-15 22:14:16,604 INFO L168 Benchmark]: Witness Printer took 140.57 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 939.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-15 22:14:16,606 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 424.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -199.5 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 59.93 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 39.96 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 452.97 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: 29.7 MB). Peak memory consumption was 29.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2474.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.1 MB in the end (delta: 168.4 MB). Peak memory consumption was 168.4 MB. Max. memory is 11.5 GB. * Witness Printer took 140.57 ms. Allocated memory is still 1.2 GB. Free memory was 946.1 MB in the beginning and 939.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 16 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: t <= tagbuf_len && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && 1 <= tagbuf_len) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((t <= tagbuf_len && !(t == tagbuf_len)) && 1 == cond) && 0 <= t - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: (t <= tagbuf_len && !(0 == cond)) && 0 <= t - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 79 locations, 16 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 157 SDtfs, 214 SDslu, 155 SDs, 0 SdLazy, 227 SolverSat, 159 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=79occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 16 PreInvPairs, 35 NumberOfFragments, 181 HoareAnnotationTreeSize, 16 FomulaSimplifications, 108 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 40 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 3022 SizeOfPredicates, 8 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 2/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...