./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/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 6b2483ed4878f440f5477fb40e4fe96958613e0f ................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 05:08:10,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 05:08:10,992 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 05:08:11,011 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 05:08:11,011 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 05:08:11,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 05:08:11,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 05:08:11,025 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 05:08:11,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 05:08:11,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 05:08:11,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 05:08:11,037 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 05:08:11,038 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 05:08:11,040 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 05:08:11,041 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 05:08:11,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 05:08:11,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 05:08:11,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 05:08:11,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 05:08:11,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 05:08:11,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 05:08:11,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 05:08:11,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 05:08:11,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 05:08:11,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 05:08:11,065 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 05:08:11,065 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 05:08:11,067 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 05:08:11,068 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 05:08:11,069 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 05:08:11,069 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 05:08:11,070 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 05:08:11,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 05:08:11,072 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 05:08:11,073 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 05:08:11,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 05:08:11,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 05:08:11,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 05:08:11,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 05:08:11,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 05:08:11,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 05:08:11,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 05:08:11,106 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 05:08:11,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 05:08:11,108 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 05:08:11,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 05:08:11,108 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 05:08:11,109 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 05:08:11,109 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 05:08:11,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 05:08:11,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 05:08:11,110 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 05:08:11,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 05:08:11,110 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 05:08:11,110 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 05:08:11,111 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 05:08:11,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 05:08:11,111 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 05:08:11,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 05:08:11,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 05:08:11,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 05:08:11,112 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 05:08:11,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 05:08:11,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:08:11,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 05:08:11,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 05:08:11,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 05:08:11,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 05:08:11,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 05:08:11,115 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 05:08:11,115 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/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 -> 6b2483ed4878f440f5477fb40e4fe96958613e0f [2019-11-20 05:08:11,277 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 05:08:11,288 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 05:08:11,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 05:08:11,300 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 05:08:11,300 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 05:08:11,301 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2019-11-20 05:08:11,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/data/08460c09d/e2fdc0366d1d41bab11eab02792e2171/FLAG87e59a438 [2019-11-20 05:08:11,776 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 05:08:11,777 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/sv-benchmarks/c/loop-lit/jm2006_variant.i [2019-11-20 05:08:11,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/data/08460c09d/e2fdc0366d1d41bab11eab02792e2171/FLAG87e59a438 [2019-11-20 05:08:12,134 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/data/08460c09d/e2fdc0366d1d41bab11eab02792e2171 [2019-11-20 05:08:12,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 05:08:12,138 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 05:08:12,139 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 05:08:12,139 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 05:08:12,147 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 05:08:12,148 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44224560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12, skipping insertion in model container [2019-11-20 05:08:12,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,160 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 05:08:12,177 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 05:08:12,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:08:12,353 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 05:08:12,372 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 05:08:12,484 INFO L192 MainTranslator]: Completed translation [2019-11-20 05:08:12,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12 WrapperNode [2019-11-20 05:08:12,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 05:08:12,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 05:08:12,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 05:08:12,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 05:08:12,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 05:08:12,525 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 05:08:12,525 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 05:08:12,525 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 05:08:12,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,537 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,537 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,540 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,545 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,546 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... [2019-11-20 05:08:12,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 05:08:12,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 05:08:12,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 05:08:12,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 05:08:12,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 05:08:12,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 05:08:12,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 05:08:12,810 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 05:08:12,810 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 05:08:12,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:08:12 BoogieIcfgContainer [2019-11-20 05:08:12,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 05:08:12,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 05:08:12,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 05:08:12,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 05:08:12,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:08:12" (1/3) ... [2019-11-20 05:08:12,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d339305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:08:12, skipping insertion in model container [2019-11-20 05:08:12,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:08:12" (2/3) ... [2019-11-20 05:08:12,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d339305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:08:12, skipping insertion in model container [2019-11-20 05:08:12,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:08:12" (3/3) ... [2019-11-20 05:08:12,821 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2019-11-20 05:08:12,831 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 05:08:12,837 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 05:08:12,851 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 05:08:12,892 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 05:08:12,892 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 05:08:12,892 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 05:08:12,893 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 05:08:12,893 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 05:08:12,893 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 05:08:12,893 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 05:08:12,893 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 05:08:12,916 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-20 05:08:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 05:08:12,922 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:08:12,923 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:08:12,923 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:08:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:08:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1482157489, now seen corresponding path program 1 times [2019-11-20 05:08:12,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:08:12,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694501802] [2019-11-20 05:08:12,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:08:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:08:13,304 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 19 [2019-11-20 05:08:13,449 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 20 [2019-11-20 05:08:13,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:13,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694501802] [2019-11-20 05:08:13,469 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 05:08:13,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 05:08:13,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547603230] [2019-11-20 05:08:13,476 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 05:08:13,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:08:13,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 05:08:13,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 05:08:13,494 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-11-20 05:08:13,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:08:13,792 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2019-11-20 05:08:13,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 05:08:13,796 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-20 05:08:13,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:08:13,810 INFO L225 Difference]: With dead ends: 35 [2019-11-20 05:08:13,810 INFO L226 Difference]: Without dead ends: 9 [2019-11-20 05:08:13,820 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-20 05:08:13,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-20 05:08:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-20 05:08:13,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-20 05:08:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-20 05:08:13,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-20 05:08:13,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:08:13,866 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-20 05:08:13,866 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 05:08:13,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-20 05:08:13,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-20 05:08:13,868 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:08:13,870 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:08:13,870 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:08:13,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:08:13,871 INFO L82 PathProgramCache]: Analyzing trace with hash 1299363897, now seen corresponding path program 1 times [2019-11-20 05:08:13,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:08:13,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917780488] [2019-11-20 05:08:13,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:08:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:08:14,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:14,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917780488] [2019-11-20 05:08:14,062 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125338909] [2019-11-20 05:08:14,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:08:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:08:14,104 WARN L253 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 22 conjunts are in the unsatisfiable core [2019-11-20 05:08:14,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:08:14,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:14,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:08:14,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2019-11-20 05:08:14,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092609590] [2019-11-20 05:08:14,224 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-20 05:08:14,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:08:14,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-20 05:08:14,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2019-11-20 05:08:14,225 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 10 states. [2019-11-20 05:08:14,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:08:14,460 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-20 05:08:14,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-20 05:08:14,461 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 8 [2019-11-20 05:08:14,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:08:14,461 INFO L225 Difference]: With dead ends: 17 [2019-11-20 05:08:14,462 INFO L226 Difference]: Without dead ends: 11 [2019-11-20 05:08:14,463 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2019-11-20 05:08:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-20 05:08:14,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 05:08:14,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 05:08:14,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-11-20 05:08:14,466 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-11-20 05:08:14,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:08:14,467 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-11-20 05:08:14,467 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-20 05:08:14,467 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-11-20 05:08:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 05:08:14,468 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 05:08:14,468 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 05:08:14,683 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:08:14,683 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 05:08:14,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 05:08:14,684 INFO L82 PathProgramCache]: Analyzing trace with hash -1095392519, now seen corresponding path program 2 times [2019-11-20 05:08:14,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 05:08:14,684 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905369934] [2019-11-20 05:08:14,684 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 05:08:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 05:08:14,869 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 05:08:14,870 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905369934] [2019-11-20 05:08:14,870 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598030044] [2019-11-20 05:08:14,870 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:08:14,906 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-20 05:08:14,906 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-20 05:08:14,908 WARN L253 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 34 conjunts are in the unsatisfiable core [2019-11-20 05:08:14,909 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 05:08:15,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 05:08:15,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 05:08:15,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-11-20 05:08:15,035 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444055344] [2019-11-20 05:08:15,036 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-20 05:08:15,036 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 05:08:15,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-20 05:08:15,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-11-20 05:08:15,037 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 13 states. [2019-11-20 05:08:15,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 05:08:15,197 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-11-20 05:08:15,197 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-20 05:08:15,197 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2019-11-20 05:08:15,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 05:08:15,198 INFO L225 Difference]: With dead ends: 14 [2019-11-20 05:08:15,198 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 05:08:15,199 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2019-11-20 05:08:15,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 05:08:15,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 05:08:15,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 05:08:15,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 05:08:15,200 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 05:08:15,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 05:08:15,200 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 05:08:15,201 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-20 05:08:15,201 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 05:08:15,201 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 05:08:15,402 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 05:08:15,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 05:08:15,478 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 05:08:15,478 INFO L447 ceAbstractionStarter]: At program point L27(lines 10 28) the Hoare annotation is: true [2019-11-20 05:08:15,479 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-11-20 05:08:15,479 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-11-20 05:08:15,479 INFO L444 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-11-20 05:08:15,479 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 05:08:15,479 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 05:08:15,479 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 05:08:15,480 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 05:08:15,480 INFO L447 ceAbstractionStarter]: At program point L24(lines 24 26) the Hoare annotation is: true [2019-11-20 05:08:15,480 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-20 05:08:15,480 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 05:08:15,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 05:08:15 BoogieIcfgContainer [2019-11-20 05:08:15,503 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 05:08:15,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 05:08:15,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 05:08:15,504 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 05:08:15,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:08:12" (3/4) ... [2019-11-20 05:08:15,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 05:08:15,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 05:08:15,520 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 05:08:15,568 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fe86dcb4-4051-4bd0-825c-2e9573ab509d/bin/uautomizer/witness.graphml [2019-11-20 05:08:15,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 05:08:15,571 INFO L168 Benchmark]: Toolchain (without parser) took 3432.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 946.0 MB in the end (delta: -1.3 MB). Peak memory consumption was 151.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:08:15,571 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:08:15,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:08:15,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:08:15,573 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:08:15,574 INFO L168 Benchmark]: RCFGBuilder took 263.96 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. [2019-11-20 05:08:15,575 INFO L168 Benchmark]: TraceAbstraction took 2690.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. [2019-11-20 05:08:15,575 INFO L168 Benchmark]: Witness Printer took 65.14 ms. Allocated memory is still 1.2 GB. Free memory is still 946.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 05:08:15,578 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 349.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -202.3 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.82 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.96 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: 16.4 MB). Peak memory consumption was 16.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2690.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 946.0 MB in the end (delta: 181.3 MB). Peak memory consumption was 181.3 MB. Max. memory is 11.5 GB. * Witness Printer took 65.14 ms. Allocated memory is still 1.2 GB. Free memory is still 946.0 MB. There was no memory consumed. 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x + j <= z + y + i && z + y + i <= x + j - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 38 SDslu, 49 SDs, 0 SdLazy, 123 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 108 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 2858 SizeOfPredicates, 14 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 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...