./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-regression/test11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-regression/test11.c -s /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/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 ff22ef1f1636739616d2fc1a8366a8c51606f555 ................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:56:28,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:56:28,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:56:28,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:56:28,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:56:28,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:56:28,345 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:56:28,347 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:56:28,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:56:28,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:56:28,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:56:28,351 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:56:28,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:56:28,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:56:28,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:56:28,354 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:56:28,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:56:28,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:56:28,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:56:28,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:56:28,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:56:28,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:56:28,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:56:28,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:56:28,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:56:28,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:56:28,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:56:28,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:56:28,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:56:28,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:56:28,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:56:28,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:56:28,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:56:28,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:56:28,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:56:28,372 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:56:28,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:56:28,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:56:28,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:56:28,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:56:28,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:56:28,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:56:28,387 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:56:28,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:56:28,388 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:56:28,388 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:56:28,388 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:56:28,389 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:56:28,389 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:56:28,389 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:56:28,389 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:56:28,389 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:56:28,390 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:56:28,391 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:56:28,391 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:56:28,391 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:56:28,391 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:56:28,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:56:28,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:56:28,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:56:28,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:56:28,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:56:28,392 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:56:28,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:56:28,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:56:28,393 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_768f9cfb-8f9a-443e-a324-b8bc661f29b2/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 -> ff22ef1f1636739616d2fc1a8366a8c51606f555 [2019-11-25 08:56:28,531 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:56:28,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:56:28,544 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:56:28,545 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:56:28,545 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:56:28,546 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/../../sv-benchmarks/c/ldv-regression/test11.c [2019-11-25 08:56:28,595 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/data/c967a2688/1f0798d042004691b6bf0540411e8a02/FLAGd4d1ca3a1 [2019-11-25 08:56:28,997 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:56:28,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/sv-benchmarks/c/ldv-regression/test11.c [2019-11-25 08:56:29,003 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/data/c967a2688/1f0798d042004691b6bf0540411e8a02/FLAGd4d1ca3a1 [2019-11-25 08:56:29,020 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/data/c967a2688/1f0798d042004691b6bf0540411e8a02 [2019-11-25 08:56:29,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:56:29,024 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:56:29,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:29,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:56:29,035 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:56:29,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,039 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bec3151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29, skipping insertion in model container [2019-11-25 08:56:29,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:56:29,067 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:56:29,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:29,260 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:56:29,275 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:56:29,287 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:56:29,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29 WrapperNode [2019-11-25 08:56:29,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:56:29,288 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:29,289 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:56:29,289 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:56:29,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:56:29,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:56:29,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:56:29,320 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:56:29,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,334 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... [2019-11-25 08:56:29,336 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:56:29,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:56:29,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:56:29,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:56:29,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/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 [2019-11-25 08:56:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:56:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:56:29,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:56:29,397 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:56:29,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-11-25 08:56:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-25 08:56:29,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-25 08:56:29,697 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:56:29,697 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:56:29,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:29 BoogieIcfgContainer [2019-11-25 08:56:29,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:56:29,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:56:29,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:56:29,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:56:29,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:56:29" (1/3) ... [2019-11-25 08:56:29,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f4c659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:29, skipping insertion in model container [2019-11-25 08:56:29,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:56:29" (2/3) ... [2019-11-25 08:56:29,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29f4c659 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:56:29, skipping insertion in model container [2019-11-25 08:56:29,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:29" (3/3) ... [2019-11-25 08:56:29,705 INFO L109 eAbstractionObserver]: Analyzing ICFG test11.c [2019-11-25 08:56:29,714 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:56:29,719 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:56:29,728 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:56:29,746 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:56:29,747 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:56:29,747 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:56:29,747 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:56:29,747 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:56:29,747 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:56:29,747 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:56:29,747 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:56:29,760 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-25 08:56:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 08:56:29,766 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:29,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:29,767 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash 119352371, now seen corresponding path program 1 times [2019-11-25 08:56:29,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:29,782 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853318646] [2019-11-25 08:56:29,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:29,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:29,935 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853318646] [2019-11-25 08:56:29,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:29,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:29,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217986701] [2019-11-25 08:56:29,940 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:29,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:29,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:29,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:29,955 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-25 08:56:30,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:30,005 INFO L93 Difference]: Finished difference Result 22 states and 27 transitions. [2019-11-25 08:56:30,006 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:56:30,007 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-25 08:56:30,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:30,020 INFO L225 Difference]: With dead ends: 22 [2019-11-25 08:56:30,020 INFO L226 Difference]: Without dead ends: 12 [2019-11-25 08:56:30,022 INFO L630 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 [2019-11-25 08:56:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-25 08:56:30,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:56:30,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:56:30,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-25 08:56:30,054 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-11-25 08:56:30,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:30,055 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-25 08:56:30,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:30,055 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-25 08:56:30,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-25 08:56:30,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:30,056 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:30,056 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:30,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:30,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1264891367, now seen corresponding path program 1 times [2019-11-25 08:56:30,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:30,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793555669] [2019-11-25 08:56:30,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:30,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:30,206 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793555669] [2019-11-25 08:56:30,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:30,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-25 08:56:30,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561772734] [2019-11-25 08:56:30,208 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-25 08:56:30,208 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:30,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-25 08:56:30,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-11-25 08:56:30,209 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 6 states. [2019-11-25 08:56:30,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:30,257 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-25 08:56:30,257 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-25 08:56:30,257 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-25 08:56:30,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:30,258 INFO L225 Difference]: With dead ends: 14 [2019-11-25 08:56:30,258 INFO L226 Difference]: Without dead ends: 12 [2019-11-25 08:56:30,259 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:56:30,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-25 08:56:30,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:56:30,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:56:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-11-25 08:56:30,262 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 10 [2019-11-25 08:56:30,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:30,262 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-11-25 08:56:30,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-25 08:56:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-11-25 08:56:30,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:56:30,263 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:56:30,263 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:56:30,263 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:56:30,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:56:30,264 INFO L82 PathProgramCache]: Analyzing trace with hash -556924879, now seen corresponding path program 1 times [2019-11-25 08:56:30,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:56:30,264 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006436971] [2019-11-25 08:56:30,264 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:56:30,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:56:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:56:30,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006436971] [2019-11-25 08:56:30,385 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:56:30,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-25 08:56:30,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101724754] [2019-11-25 08:56:30,385 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-25 08:56:30,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:56:30,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-25 08:56:30,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-25 08:56:30,386 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 4 states. [2019-11-25 08:56:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:56:30,412 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-25 08:56:30,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-25 08:56:30,413 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-11-25 08:56:30,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:56:30,413 INFO L225 Difference]: With dead ends: 12 [2019-11-25 08:56:30,413 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:56:30,414 INFO L630 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 [2019-11-25 08:56:30,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:56:30,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:56:30,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:56:30,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:56:30,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-25 08:56:30,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:56:30,415 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:56:30,415 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-25 08:56:30,415 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:56:30,415 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:56:30,419 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:56:30,443 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:56:30,443 INFO L440 ceAbstractionStarter]: At program point L31(lines 12 32) the Hoare annotation is: (not (= 0 ULTIMATE.start_main_~pc~0.base)) [2019-11-25 08:56:30,443 INFO L440 ceAbstractionStarter]: At program point L25(lines 12 32) the Hoare annotation is: false [2019-11-25 08:56:30,443 INFO L444 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point L19-2(line 19) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point L9-2(line 9) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L440 ceAbstractionStarter]: At program point L9-3(lines 7 10) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_main_~pc~0.base)) (= ULTIMATE.start_main_~pc~0.offset |ULTIMATE.start_main_~#c~0.offset|) (= ULTIMATE.start_main_~pc~0.base |ULTIMATE.start_main_~#c~0.base|)) [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:56:30,444 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:56:30,445 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 26) no Hoare annotation was computed. [2019-11-25 08:56:30,445 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-11-25 08:56:30,445 INFO L444 ceAbstractionStarter]: For program point L18(lines 18 19) no Hoare annotation was computed. [2019-11-25 08:56:30,445 INFO L444 ceAbstractionStarter]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2019-11-25 08:56:30,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:56:30 BoogieIcfgContainer [2019-11-25 08:56:30,457 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:56:30,457 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:56:30,457 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:56:30,457 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:56:30,458 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:56:29" (3/4) ... [2019-11-25 08:56:30,461 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:56:30,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-25 08:56:30,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:56:30,470 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-25 08:56:30,516 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_768f9cfb-8f9a-443e-a324-b8bc661f29b2/bin/uautomizer/witness.graphml [2019-11-25 08:56:30,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:56:30,518 INFO L168 Benchmark]: Toolchain (without parser) took 1494.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -140.2 MB). Peak memory consumption was 28.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:30,519 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:30,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -217.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:30,520 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:30,520 INFO L168 Benchmark]: Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:56:30,520 INFO L168 Benchmark]: RCFGBuilder took 362.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:30,521 INFO L168 Benchmark]: TraceAbstraction took 757.79 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:30,521 INFO L168 Benchmark]: Witness Printer took 59.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:56:30,523 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 257.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 168.8 MB). Free memory was 946.1 MB in the beginning and 1.2 GB in the end (delta: -217.6 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.73 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 362.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 757.79 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: 48.3 MB). Peak memory consumption was 48.3 MB. Max. memory is 11.5 GB. * Witness Printer took 59.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: !(0 == pc) - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: (!(0 == pc) && pc == c) && pc == c - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 32 SDtfs, 26 SDslu, 39 SDs, 0 SdLazy, 24 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 4 NumberOfFragments, 16 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 974 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...