./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt5.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/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 5843ccaa91f9ed7e681195ce1662e3f8c60b2b4c ................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 08:58:52,879 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 08:58:52,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 08:58:52,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 08:58:52,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 08:58:52,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 08:58:52,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 08:58:52,896 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 08:58:52,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 08:58:52,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 08:58:52,899 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 08:58:52,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 08:58:52,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 08:58:52,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 08:58:52,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 08:58:52,902 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 08:58:52,903 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 08:58:52,904 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 08:58:52,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 08:58:52,907 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 08:58:52,908 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 08:58:52,909 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 08:58:52,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 08:58:52,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 08:58:52,913 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 08:58:52,913 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 08:58:52,913 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 08:58:52,914 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 08:58:52,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 08:58:52,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 08:58:52,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 08:58:52,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 08:58:52,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 08:58:52,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 08:58:52,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 08:58:52,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 08:58:52,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 08:58:52,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 08:58:52,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 08:58:52,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 08:58:52,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 08:58:52,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 08:58:52,934 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 08:58:52,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 08:58:52,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 08:58:52,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 08:58:52,936 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 08:58:52,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 08:58:52,936 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 08:58:52,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 08:58:52,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 08:58:52,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 08:58:52,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 08:58:52,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 08:58:52,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 08:58:52,937 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 08:58:52,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 08:58:52,938 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 08:58:52,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 08:58:52,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 08:58:52,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 08:58:52,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 08:58:52,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 08:58:52,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 08:58:52,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 08:58:52,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 08:58:52,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 08:58:52,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 08:58:52,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 08:58:52,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 08:58:52,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/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 -> 5843ccaa91f9ed7e681195ce1662e3f8c60b2b4c [2019-10-22 08:58:52,967 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 08:58:52,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 08:58:52,982 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 08:58:52,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 08:58:52,984 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 08:58:52,985 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/sumt5.c [2019-10-22 08:58:53,042 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/data/f602bb8be/4f398680cd5b4163895565cd4b31f137/FLAG391d8fba3 [2019-10-22 08:58:53,409 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 08:58:53,409 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/sv-benchmarks/c/loops-crafted-1/sumt5.c [2019-10-22 08:58:53,416 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/data/f602bb8be/4f398680cd5b4163895565cd4b31f137/FLAG391d8fba3 [2019-10-22 08:58:53,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/data/f602bb8be/4f398680cd5b4163895565cd4b31f137 [2019-10-22 08:58:53,795 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 08:58:53,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 08:58:53,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:53,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 08:58:53,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 08:58:53,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:53" (1/1) ... [2019-10-22 08:58:53,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c0dd891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:53, skipping insertion in model container [2019-10-22 08:58:53,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 08:58:53" (1/1) ... [2019-10-22 08:58:53,813 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 08:58:53,832 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 08:58:54,024 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,029 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 08:58:54,159 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 08:58:54,178 INFO L192 MainTranslator]: Completed translation [2019-10-22 08:58:54,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54 WrapperNode [2019-10-22 08:58:54,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 08:58:54,180 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:54,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 08:58:54,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 08:58:54,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,197 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,217 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 08:58:54,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 08:58:54,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 08:58:54,228 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,229 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... [2019-10-22 08:58:54,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 08:58:54,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 08:58:54,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 08:58:54,240 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 08:58:54,241 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/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 [2019-10-22 08:58:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 08:58:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 08:58:54,498 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 08:58:54,498 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 08:58:54,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54 BoogieIcfgContainer [2019-10-22 08:58:54,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 08:58:54,501 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 08:58:54,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 08:58:54,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 08:58:54,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 08:58:53" (1/3) ... [2019-10-22 08:58:54,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c4cdd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:54, skipping insertion in model container [2019-10-22 08:58:54,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 08:58:54" (2/3) ... [2019-10-22 08:58:54,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58c4cdd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 08:58:54, skipping insertion in model container [2019-10-22 08:58:54,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54" (3/3) ... [2019-10-22 08:58:54,510 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt5.c [2019-10-22 08:58:54,520 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 08:58:54,528 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 08:58:54,540 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 08:58:54,561 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 08:58:54,561 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 08:58:54,561 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 08:58:54,561 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 08:58:54,561 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 08:58:54,562 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 08:58:54,562 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 08:58:54,562 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 08:58:54,574 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-22 08:58:54,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:58:54,582 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:54,583 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:54,585 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:54,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1807766728, now seen corresponding path program 1 times [2019-10-22 08:58:54,601 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,602 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690737552] [2019-10-22 08:58:54,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,603 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:54,718 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690737552] [2019-10-22 08:58:54,718 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:54,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 08:58:54,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431418538] [2019-10-22 08:58:54,722 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 08:58:54,723 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:54,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 08:58:54,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 08:58:54,735 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 2 states. [2019-10-22 08:58:54,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:54,749 INFO L93 Difference]: Finished difference Result 25 states and 32 transitions. [2019-10-22 08:58:54,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 08:58:54,750 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-10-22 08:58:54,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:54,761 INFO L225 Difference]: With dead ends: 25 [2019-10-22 08:58:54,761 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 08:58:54,764 INFO L600 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 [2019-10-22 08:58:54,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 08:58:54,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-10-22 08:58:54,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-10-22 08:58:54,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 17 transitions. [2019-10-22 08:58:54,797 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 17 transitions. Word has length 7 [2019-10-22 08:58:54,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:54,797 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 17 transitions. [2019-10-22 08:58:54,797 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 08:58:54,797 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 17 transitions. [2019-10-22 08:58:54,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 08:58:54,798 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:54,798 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:54,798 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:54,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:54,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1806992162, now seen corresponding path program 1 times [2019-10-22 08:58:54,799 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:54,799 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613570982] [2019-10-22 08:58:54,799 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,800 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:54,800 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:55,207 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2019-10-22 08:58:55,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:55,234 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613570982] [2019-10-22 08:58:55,234 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 08:58:55,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-22 08:58:55,234 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277142433] [2019-10-22 08:58:55,236 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-22 08:58:55,237 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:55,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-22 08:58:55,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-10-22 08:58:55,237 INFO L87 Difference]: Start difference. First operand 13 states and 17 transitions. Second operand 5 states. [2019-10-22 08:58:55,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:55,405 INFO L93 Difference]: Finished difference Result 22 states and 30 transitions. [2019-10-22 08:58:55,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 08:58:55,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-10-22 08:58:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:55,407 INFO L225 Difference]: With dead ends: 22 [2019-10-22 08:58:55,407 INFO L226 Difference]: Without dead ends: 18 [2019-10-22 08:58:55,408 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 08:58:55,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-22 08:58:55,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2019-10-22 08:58:55,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-10-22 08:58:55,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2019-10-22 08:58:55,412 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 7 [2019-10-22 08:58:55,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:55,414 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2019-10-22 08:58:55,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-22 08:58:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2019-10-22 08:58:55,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 08:58:55,417 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 08:58:55,417 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 08:58:55,417 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 08:58:55,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 08:58:55,418 INFO L82 PathProgramCache]: Analyzing trace with hash 92541021, now seen corresponding path program 1 times [2019-10-22 08:58:55,418 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 08:58:55,419 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357221141] [2019-10-22 08:58:55,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,419 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 08:58:55,419 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 08:58:55,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:55,737 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:55,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357221141] [2019-10-22 08:58:55,738 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309149097] [2019-10-22 08:58:55,738 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:55,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 08:58:55,777 WARN L254 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 22 conjunts are in the unsatisfiable core [2019-10-22 08:58:55,783 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 08:58:55,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 08:58:55,920 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-22 08:58:55,920 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-10-22 08:58:55,920 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982540078] [2019-10-22 08:58:55,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-22 08:58:55,921 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 08:58:55,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-22 08:58:55,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-10-22 08:58:55,922 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand 12 states. [2019-10-22 08:58:56,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 08:58:56,296 INFO L93 Difference]: Finished difference Result 31 states and 46 transitions. [2019-10-22 08:58:56,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-10-22 08:58:56,297 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-10-22 08:58:56,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 08:58:56,298 INFO L225 Difference]: With dead ends: 31 [2019-10-22 08:58:56,298 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 08:58:56,299 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2019-10-22 08:58:56,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 08:58:56,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 08:58:56,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 08:58:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 08:58:56,300 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 08:58:56,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 08:58:56,300 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 08:58:56,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-22 08:58:56,300 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 08:58:56,301 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 08:58:56,501 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 08:58:56,505 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 08:58:56,558 INFO L446 ceAbstractionStarter]: At program point L31(lines 11 32) the Hoare annotation is: true [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 27) no Hoare annotation was computed. [2019-10-22 08:58:56,559 INFO L443 ceAbstractionStarter]: For program point L24-2(lines 18 27) no Hoare annotation was computed. [2019-10-22 08:58:56,560 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 27) no Hoare annotation was computed. [2019-10-22 08:58:56,560 INFO L439 ceAbstractionStarter]: At program point L16-2(lines 16 29) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~v3~0 ULTIMATE.start_main_~v4~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= ULTIMATE.start_main_~l~0 .cse0) (<= .cse0 ULTIMATE.start_main_~l~0))) [2019-10-22 08:58:56,560 INFO L443 ceAbstractionStarter]: For program point L16-3(lines 16 29) no Hoare annotation was computed. [2019-10-22 08:58:56,560 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 08:58:56,561 INFO L446 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-10-22 08:58:56,561 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 08:58:56,561 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 08:58:56,561 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 08:58:56,561 INFO L443 ceAbstractionStarter]: For program point L22(lines 22 27) no Hoare annotation was computed. [2019-10-22 08:58:56,561 INFO L443 ceAbstractionStarter]: For program point L18(lines 18 27) no Hoare annotation was computed. [2019-10-22 08:58:56,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 08:58:56 BoogieIcfgContainer [2019-10-22 08:58:56,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 08:58:56,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 08:58:56,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 08:58:56,579 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 08:58:56,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 08:58:54" (3/4) ... [2019-10-22 08:58:56,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 08:58:56,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 08:58:56,595 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 08:58:56,660 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fbf18e42-7267-4211-9658-3c09422e0c02/bin/uautomizer/witness.graphml [2019-10-22 08:58:56,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 08:58:56,661 INFO L168 Benchmark]: Toolchain (without parser) took 2865.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 940.6 MB in the beginning and 994.3 MB in the end (delta: -53.6 MB). Peak memory consumption was 121.5 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,662 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 08:58:56,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 940.6 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,663 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,664 INFO L168 Benchmark]: Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,664 INFO L168 Benchmark]: RCFGBuilder took 260.30 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,665 INFO L168 Benchmark]: TraceAbstraction took 2077.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.0 MB in the end (delta: 149.0 MB). Peak memory consumption was 149.0 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,665 INFO L168 Benchmark]: Witness Printer took 81.22 ms. Allocated memory is still 1.2 GB. Free memory was 996.0 MB in the beginning and 994.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 08:58:56,669 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 966.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.1 MB). Free memory was 940.6 MB in the beginning and 1.2 GB in the end (delta: -228.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 260.30 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: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2077.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 996.0 MB in the end (delta: 149.0 MB). Peak memory consumption was 149.0 MB. Max. memory is 11.5 GB. * Witness Printer took 81.22 ms. Allocated memory is still 1.2 GB. Free memory was 996.0 MB in the beginning and 994.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: l <= i + v3 + v4 + k + j && i + v3 + v4 + k + j <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 33 SDslu, 23 SDs, 0 SdLazy, 138 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 96 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 4587 SizeOfPredicates, 8 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 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...