./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/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 329fe1d7b64fa92ea293b849994df7355375c757 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 07:51:55,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 07:51:55,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 07:51:55,878 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 07:51:55,879 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 07:51:55,879 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 07:51:55,880 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 07:51:55,881 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 07:51:55,882 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 07:51:55,883 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 07:51:55,883 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 07:51:55,883 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 07:51:55,884 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 07:51:55,884 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 07:51:55,885 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 07:51:55,886 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 07:51:55,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 07:51:55,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 07:51:55,889 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 07:51:55,890 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 07:51:55,891 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 07:51:55,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 07:51:55,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 07:51:55,894 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 07:51:55,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 07:51:55,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 07:51:55,895 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 07:51:55,896 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 07:51:55,896 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 07:51:55,897 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 07:51:55,897 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 07:51:55,898 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 07:51:55,898 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 07:51:55,898 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 07:51:55,899 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 07:51:55,899 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 07:51:55,899 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 07:51:55,909 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 07:51:55,909 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 07:51:55,910 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 07:51:55,910 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 07:51:55,910 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 07:51:55,910 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 07:51:55,911 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 07:51:55,911 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 07:51:55,912 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 07:51:55,912 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 07:51:55,913 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 07:51:55,913 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 07:51:55,914 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/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 -> 329fe1d7b64fa92ea293b849994df7355375c757 [2018-11-23 07:51:55,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 07:51:55,943 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 07:51:55,945 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 07:51:55,946 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 07:51:55,946 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 07:51:55,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/../../sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-11-23 07:51:55,980 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/data/43cfc09e6/b08b705ccc774cc0b4712ba50c5da18b/FLAGb90ab12fd [2018-11-23 07:51:56,384 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 07:51:56,385 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/sv-benchmarks/c/loops/lu.cmp_true-unreach-call.i [2018-11-23 07:51:56,390 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/data/43cfc09e6/b08b705ccc774cc0b4712ba50c5da18b/FLAGb90ab12fd [2018-11-23 07:51:56,401 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/data/43cfc09e6/b08b705ccc774cc0b4712ba50c5da18b [2018-11-23 07:51:56,403 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 07:51:56,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 07:51:56,404 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 07:51:56,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 07:51:56,406 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 07:51:56,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600d8aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56, skipping insertion in model container [2018-11-23 07:51:56,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 07:51:56,429 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 07:51:56,560 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:51:56,624 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 07:51:56,646 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 07:51:56,786 INFO L195 MainTranslator]: Completed translation [2018-11-23 07:51:56,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56 WrapperNode [2018-11-23 07:51:56,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 07:51:56,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 07:51:56,787 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 07:51:56,787 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 07:51:56,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,832 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 07:51:56,833 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 07:51:56,833 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 07:51:56,833 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 07:51:56,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... [2018-11-23 07:51:56,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 07:51:56,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 07:51:56,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 07:51:56,919 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 07:51:56,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/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 [2018-11-23 07:51:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2018-11-23 07:51:56,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2018-11-23 07:51:56,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-23 07:51:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 07:51:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 07:51:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2018-11-23 07:51:56,956 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2018-11-23 07:51:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-23 07:51:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-23 07:51:56,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 07:51:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 07:51:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 07:51:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 07:51:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-23 07:51:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 07:51:56,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 07:51:56,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-23 07:51:58,391 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 07:51:58,391 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-11-23 07:51:58,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:51:58 BoogieIcfgContainer [2018-11-23 07:51:58,391 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 07:51:58,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 07:51:58,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 07:51:58,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 07:51:58,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:51:56" (1/3) ... [2018-11-23 07:51:58,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc5192a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:51:58, skipping insertion in model container [2018-11-23 07:51:58,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:51:56" (2/3) ... [2018-11-23 07:51:58,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fc5192a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:51:58, skipping insertion in model container [2018-11-23 07:51:58,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:51:58" (3/3) ... [2018-11-23 07:51:58,396 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp_true-unreach-call.i [2018-11-23 07:51:58,404 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 07:51:58,414 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 07:51:58,427 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 07:51:58,449 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 07:51:58,450 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 07:51:58,450 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 07:51:58,450 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 07:51:58,450 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 07:51:58,450 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 07:51:58,451 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 07:51:58,451 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 07:51:58,451 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 07:51:58,465 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-11-23 07:51:58,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 07:51:58,470 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:51:58,471 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:51:58,472 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:51:58,475 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:51:58,476 INFO L82 PathProgramCache]: Analyzing trace with hash 406725423, now seen corresponding path program 1 times [2018-11-23 07:51:58,477 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:51:58,477 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:51:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:58,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:51:58,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:58,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:51:58,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:51:58,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:51:58,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-23 07:51:58,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-23 07:51:58,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-23 07:51:58,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:51:58,894 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-11-23 07:51:58,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:51:58,917 INFO L93 Difference]: Finished difference Result 122 states and 178 transitions. [2018-11-23 07:51:58,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-23 07:51:58,918 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2018-11-23 07:51:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:51:58,924 INFO L225 Difference]: With dead ends: 122 [2018-11-23 07:51:58,924 INFO L226 Difference]: Without dead ends: 20 [2018-11-23 07:51:58,927 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-23 07:51:58,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-23 07:51:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-23 07:51:58,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-23 07:51:58,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-23 07:51:58,956 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 12 [2018-11-23 07:51:58,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:51:58,956 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-23 07:51:58,956 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-23 07:51:58,956 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-23 07:51:58,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-23 07:51:58,957 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:51:58,957 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:51:58,957 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:51:58,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:51:58,957 INFO L82 PathProgramCache]: Analyzing trace with hash 394719650, now seen corresponding path program 1 times [2018-11-23 07:51:58,957 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:51:58,957 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:51:58,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:58,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:51:58,958 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:59,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:51:59,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:51:59,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 07:51:59,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 07:51:59,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 07:51:59,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 07:51:59,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:51:59,207 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 4 states. [2018-11-23 07:51:59,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:51:59,239 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2018-11-23 07:51:59,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 07:51:59,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-11-23 07:51:59,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:51:59,240 INFO L225 Difference]: With dead ends: 38 [2018-11-23 07:51:59,241 INFO L226 Difference]: Without dead ends: 24 [2018-11-23 07:51:59,241 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-23 07:51:59,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-23 07:51:59,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2018-11-23 07:51:59,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-23 07:51:59,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-23 07:51:59,245 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2018-11-23 07:51:59,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:51:59,246 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-23 07:51:59,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 07:51:59,246 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-23 07:51:59,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-23 07:51:59,247 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:51:59,247 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:51:59,247 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:51:59,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:51:59,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1180233829, now seen corresponding path program 1 times [2018-11-23 07:51:59,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:51:59,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:51:59,249 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:59,249 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:51:59,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:51:59,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:51:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:51:59,453 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:51:59,454 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:51:59,469 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:52:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:52:00,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:52:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:52:00,081 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:52:00,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-11-23 07:52:00,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-23 07:52:00,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-23 07:52:00,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:52:00,082 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 7 states. [2018-11-23 07:52:00,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:52:00,147 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2018-11-23 07:52:00,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-23 07:52:00,147 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 16 [2018-11-23 07:52:00,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:52:00,148 INFO L225 Difference]: With dead ends: 43 [2018-11-23 07:52:00,148 INFO L226 Difference]: Without dead ends: 28 [2018-11-23 07:52:00,148 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-11-23 07:52:00,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-23 07:52:00,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2018-11-23 07:52:00,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-23 07:52:00,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2018-11-23 07:52:00,151 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2018-11-23 07:52:00,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:52:00,152 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2018-11-23 07:52:00,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-23 07:52:00,152 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2018-11-23 07:52:00,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-23 07:52:00,152 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:52:00,152 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:52:00,153 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:52:00,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:52:00,153 INFO L82 PathProgramCache]: Analyzing trace with hash -232421100, now seen corresponding path program 2 times [2018-11-23 07:52:00,153 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:52:00,153 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:52:00,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:52:00,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:52:00,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:52:00,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:52:00,327 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 07:52:00,327 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:52:00,327 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:52:00,334 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-23 07:52:00,712 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-23 07:52:00,713 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-23 07:52:00,724 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:52:00,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-11-23 07:52:00,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-23 07:52:00,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2018-11-23 07:52:00,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-23 07:52:00,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-23 07:52:00,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-11-23 07:52:00,783 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 9 states. [2018-11-23 07:52:00,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:52:00,940 INFO L93 Difference]: Finished difference Result 75 states and 91 transitions. [2018-11-23 07:52:00,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 07:52:00,941 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 20 [2018-11-23 07:52:00,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:52:00,962 INFO L225 Difference]: With dead ends: 75 [2018-11-23 07:52:00,962 INFO L226 Difference]: Without dead ends: 56 [2018-11-23 07:52:00,963 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-11-23 07:52:00,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-23 07:52:00,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 48. [2018-11-23 07:52:00,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-11-23 07:52:00,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-11-23 07:52:00,969 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 20 [2018-11-23 07:52:00,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:52:00,970 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-11-23 07:52:00,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-23 07:52:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-11-23 07:52:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-11-23 07:52:00,971 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 07:52:00,971 INFO L402 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 07:52:00,971 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 07:52:00,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 07:52:00,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1910500757, now seen corresponding path program 1 times [2018-11-23 07:52:00,971 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 07:52:00,972 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 07:52:00,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:52:00,972 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-11-23 07:52:00,972 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 07:52:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:52:01,153 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 1 proven. 45 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-11-23 07:52:01,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 07:52:01,153 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 07:52:01,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 07:52:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 07:52:01,534 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 07:52:01,580 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-23 07:52:01,598 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 07:52:01,598 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2018-11-23 07:52:01,599 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-23 07:52:01,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-23 07:52:01,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2018-11-23 07:52:01,599 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 12 states. [2018-11-23 07:52:01,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 07:52:01,694 INFO L93 Difference]: Finished difference Result 107 states and 129 transitions. [2018-11-23 07:52:01,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-23 07:52:01,696 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 45 [2018-11-23 07:52:01,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 07:52:01,696 INFO L225 Difference]: With dead ends: 107 [2018-11-23 07:52:01,696 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 07:52:01,697 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2018-11-23 07:52:01,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 07:52:01,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 07:52:01,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 07:52:01,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 07:52:01,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2018-11-23 07:52:01,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 07:52:01,698 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 07:52:01,698 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-23 07:52:01,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 07:52:01,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 07:52:01,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 07:52:01,793 INFO L448 ceAbstractionStarter]: For program point L44-2(lines 44 62) no Hoare annotation was computed. [2018-11-23 07:52:01,793 INFO L451 ceAbstractionStarter]: At program point L44-3(lines 44 62) the Hoare annotation is: true [2018-11-23 07:52:01,793 INFO L448 ceAbstractionStarter]: For program point L44-4(lines 44 62) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point ludcmpEXIT(lines 39 80) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L451 ceAbstractionStarter]: At program point L46(line 46) the Hoare annotation is: true [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point L46-1(line 46) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L451 ceAbstractionStarter]: At program point ludcmpENTRY(lines 39 80) the Hoare annotation is: true [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 61) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L451 ceAbstractionStarter]: At program point L55-3(lines 55 61) the Hoare annotation is: true [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point L47-2(lines 47 54) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L451 ceAbstractionStarter]: At program point L47-3(lines 47 54) the Hoare annotation is: true [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point L47-4(lines 47 54) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point ludcmpFINAL(lines 39 80) no Hoare annotation was computed. [2018-11-23 07:52:01,794 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 78) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L451 ceAbstractionStarter]: At program point L72-3(lines 72 78) the Hoare annotation is: true [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L72-4(lines 72 78) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 70) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L451 ceAbstractionStarter]: At program point L64-3(lines 64 70) the Hoare annotation is: true [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L64-4(lines 64 70) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L58-2(lines 58 59) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L451 ceAbstractionStarter]: At program point L58-3(lines 58 59) the Hoare annotation is: true [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L58-4(lines 58 59) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L50(lines 50 52) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L50-1(lines 50 52) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L448 ceAbstractionStarter]: For program point L75-2(lines 75 76) no Hoare annotation was computed. [2018-11-23 07:52:01,795 INFO L451 ceAbstractionStarter]: At program point L75-3(lines 75 76) the Hoare annotation is: true [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L75-4(lines 75 76) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L67-2(lines 67 68) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L451 ceAbstractionStarter]: At program point L67-3(lines 67 68) the Hoare annotation is: true [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L67-4(lines 67 68) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L51-2(lines 51 52) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L451 ceAbstractionStarter]: At program point L51-3(lines 51 52) the Hoare annotation is: true [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:52:01,796 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-11-23 07:52:01,797 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-11-23 07:52:01,797 INFO L448 ceAbstractionStarter]: For program point fabsEXIT(lines 11 17) no Hoare annotation was computed. [2018-11-23 07:52:01,797 INFO L451 ceAbstractionStarter]: At program point fabsENTRY(lines 11 17) the Hoare annotation is: true [2018-11-23 07:52:01,797 INFO L448 ceAbstractionStarter]: For program point fabsFINAL(lines 11 17) no Hoare annotation was computed. [2018-11-23 07:52:01,800 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 07:52:01,801 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 07:52:01,801 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L448 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L448 ceAbstractionStarter]: For program point L29-2(line 29) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 18 38) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L448 ceAbstractionStarter]: For program point L23-2(lines 23 34) no Hoare annotation was computed. [2018-11-23 07:52:01,801 INFO L444 ceAbstractionStarter]: At program point L23-3(lines 23 34) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0)) [2018-11-23 07:52:01,801 INFO L451 ceAbstractionStarter]: At program point L23-4(lines 23 34) the Hoare annotation is: true [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 18 38) no Hoare annotation was computed. [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point L32(line 32) no Hoare annotation was computed. [2018-11-23 07:52:01,802 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 18 38) the Hoare annotation is: true [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2018-11-23 07:52:01,802 INFO L444 ceAbstractionStarter]: At program point L26-3(lines 26 31) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) [2018-11-23 07:52:01,802 INFO L444 ceAbstractionStarter]: At program point L26-4(lines 26 31) the Hoare annotation is: (and (<= main_~n~0 5) (<= main_~i~0 5) (<= 5 main_~n~0)) [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point L35(line 35) no Hoare annotation was computed. [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-23 07:52:01,802 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-23 07:52:01,802 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-23 07:52:01,803 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-23 07:52:01,803 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-23 07:52:01,803 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-23 07:52:01,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 07:52:01 BoogieIcfgContainer [2018-11-23 07:52:01,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 07:52:01,815 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 07:52:01,815 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 07:52:01,815 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 07:52:01,816 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:51:58" (3/4) ... [2018-11-23 07:52:01,818 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 07:52:01,824 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ludcmp [2018-11-23 07:52:01,824 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 07:52:01,824 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs [2018-11-23 07:52:01,824 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 07:52:01,824 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 07:52:01,843 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1332 nodes and edges [2018-11-23 07:52:01,845 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 670 nodes and edges [2018-11-23 07:52:01,846 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 328 nodes and edges [2018-11-23 07:52:01,847 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 163 nodes and edges [2018-11-23 07:52:01,847 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 81 nodes and edges [2018-11-23 07:52:01,847 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-11-23 07:52:01,848 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-11-23 07:52:01,848 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-11-23 07:52:01,848 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-23 07:52:01,849 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 07:52:01,849 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:52:01,849 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 07:52:01,895 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_854782e1-7b11-49c0-9c83-d9ae99098ed8/bin-2019/uautomizer/witness.graphml [2018-11-23 07:52:01,896 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 07:52:01,896 INFO L168 Benchmark]: Toolchain (without parser) took 5493.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 268.4 MB). Free memory was 961.9 MB in the beginning and 986.5 MB in the end (delta: -24.5 MB). Peak memory consumption was 243.9 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,897 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 07:52:01,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.39 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. [2018-11-23 07:52:01,898 INFO L168 Benchmark]: Boogie Preprocessor took 85.77 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,898 INFO L168 Benchmark]: RCFGBuilder took 1472.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.1 MB). Peak memory consumption was 244.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,899 INFO L168 Benchmark]: TraceAbstraction took 3423.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 994.5 MB in the end (delta: 113.9 MB). Peak memory consumption was 183.6 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,899 INFO L168 Benchmark]: Witness Printer took 80.52 ms. Allocated memory is still 1.3 GB. Free memory was 994.5 MB in the beginning and 986.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2018-11-23 07:52:01,901 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 961.9 MB in the beginning and 1.1 GB in the end (delta: -171.9 MB). Peak memory consumption was 72.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 45.39 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. * Boogie Preprocessor took 85.77 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1472.90 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 54.5 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 4.1 MB). Peak memory consumption was 244.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3423.14 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 69.7 MB). Free memory was 1.1 GB in the beginning and 994.5 MB in the end (delta: 113.9 MB). Peak memory consumption was 183.6 MB. Max. memory is 11.5 GB. * Witness Printer took 80.52 ms. Allocated memory is still 1.3 GB. Free memory was 994.5 MB in the beginning and 986.5 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: (n <= 5 && i <= 5) && 5 <= n - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: n <= 5 && 5 <= n - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 64 locations, 1 error locations. SAFE Result, 3.3s OverallTime, 5 OverallIterations, 6 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 132 SDtfs, 168 SDslu, 171 SDs, 0 SdLazy, 182 SolverSat, 33 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 14 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 21 LocationsWithAnnotation, 40 PreInvPairs, 67 NumberOfFragments, 45 HoareAnnotationTreeSize, 40 FomulaSimplifications, 223 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 21 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 186 NumberOfCodeBlocks, 178 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 14624 SizeOfPredicates, 6 NumberOfNonLiveVariables, 15936 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 100/168 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...