./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/sumt3.c --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_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/sumt3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/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 061e6ba1d53d9c5c96dfbb0744b589f75380e27b ........................................................................................................................................................................................................................................................................................................................................................ 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 01:35:46,421 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 01:35:46,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 01:35:46,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 01:35:46,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 01:35:46,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 01:35:46,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 01:35:46,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 01:35:46,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 01:35:46,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 01:35:46,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 01:35:46,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 01:35:46,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 01:35:46,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 01:35:46,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 01:35:46,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 01:35:46,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 01:35:46,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 01:35:46,449 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 01:35:46,451 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 01:35:46,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 01:35:46,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 01:35:46,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 01:35:46,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 01:35:46,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 01:35:46,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 01:35:46,458 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 01:35:46,459 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 01:35:46,459 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 01:35:46,460 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 01:35:46,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 01:35:46,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 01:35:46,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 01:35:46,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 01:35:46,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 01:35:46,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 01:35:46,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 01:35:46,464 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 01:35:46,464 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 01:35:46,465 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 01:35:46,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 01:35:46,466 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 01:35:46,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 01:35:46,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 01:35:46,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 01:35:46,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 01:35:46,481 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 01:35:46,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 01:35:46,481 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 01:35:46,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 01:35:46,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 01:35:46,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 01:35:46,482 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 01:35:46,482 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 01:35:46,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 01:35:46,482 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 01:35:46,483 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 01:35:46,483 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 01:35:46,483 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 01:35:46,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 01:35:46,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 01:35:46,483 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 01:35:46,484 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 01:35:46,484 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 01:35:46,484 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 01:35:46,484 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 01:35:46,484 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 01:35:46,485 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 01:35:46,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 01:35:46,485 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 01:35:46,485 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_91a42668-ed44-40d3-9529-29dc3cb149bb/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 -> 061e6ba1d53d9c5c96dfbb0744b589f75380e27b [2019-11-20 01:35:46,621 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 01:35:46,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 01:35:46,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 01:35:46,643 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 01:35:46,644 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 01:35:46,644 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/../../sv-benchmarks/c/loops-crafted-1/sumt3.c [2019-11-20 01:35:46,707 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/data/3aff6a66e/314c531a50c84363a0dd85efc23284f2/FLAGe13c76077 [2019-11-20 01:35:47,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 01:35:47,119 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/sv-benchmarks/c/loops-crafted-1/sumt3.c [2019-11-20 01:35:47,125 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/data/3aff6a66e/314c531a50c84363a0dd85efc23284f2/FLAGe13c76077 [2019-11-20 01:35:47,547 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/data/3aff6a66e/314c531a50c84363a0dd85efc23284f2 [2019-11-20 01:35:47,549 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 01:35:47,550 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 01:35:47,553 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 01:35:47,553 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 01:35:47,557 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 01:35:47,558 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ca5c2fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47, skipping insertion in model container [2019-11-20 01:35:47,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,567 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 01:35:47,583 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 01:35:47,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:35:47,729 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 01:35:47,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 01:35:47,826 INFO L192 MainTranslator]: Completed translation [2019-11-20 01:35:47,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47 WrapperNode [2019-11-20 01:35:47,827 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 01:35:47,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 01:35:47,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 01:35:47,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 01:35:47,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 01:35:47,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 01:35:47,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 01:35:47,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 01:35:47,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,874 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... [2019-11-20 01:35:47,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 01:35:47,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 01:35:47,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 01:35:47,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 01:35:47,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/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 01:35:47,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 01:35:47,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 01:35:48,126 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 01:35:48,126 INFO L285 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-20 01:35:48,127 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:35:48 BoogieIcfgContainer [2019-11-20 01:35:48,128 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 01:35:48,129 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 01:35:48,129 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 01:35:48,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 01:35:48,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 01:35:47" (1/3) ... [2019-11-20 01:35:48,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b6144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:35:48, skipping insertion in model container [2019-11-20 01:35:48,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 01:35:47" (2/3) ... [2019-11-20 01:35:48,133 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@540b6144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 01:35:48, skipping insertion in model container [2019-11-20 01:35:48,133 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:35:48" (3/3) ... [2019-11-20 01:35:48,135 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt3.c [2019-11-20 01:35:48,167 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 01:35:48,172 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-20 01:35:48,181 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-20 01:35:48,208 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 01:35:48,208 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 01:35:48,208 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 01:35:48,209 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 01:35:48,209 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 01:35:48,209 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 01:35:48,209 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 01:35:48,209 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 01:35:48,226 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-20 01:35:48,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 01:35:48,231 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:35:48,232 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:35:48,232 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:35:48,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:35:48,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1807458888, now seen corresponding path program 1 times [2019-11-20 01:35:48,246 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:35:48,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874005708] [2019-11-20 01:35:48,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:35:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:35:48,337 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 01:35:48,338 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874005708] [2019-11-20 01:35:48,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:35:48,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 01:35:48,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859610732] [2019-11-20 01:35:48,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-20 01:35:48,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:35:48,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-20 01:35:48,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-20 01:35:48,361 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 2 states. [2019-11-20 01:35:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:35:48,377 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2019-11-20 01:35:48,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-20 01:35:48,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2019-11-20 01:35:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:35:48,387 INFO L225 Difference]: With dead ends: 23 [2019-11-20 01:35:48,388 INFO L226 Difference]: Without dead ends: 11 [2019-11-20 01:35:48,390 INFO L630 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 [2019-11-20 01:35:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-11-20 01:35:48,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-11-20 01:35:48,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-20 01:35:48,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-20 01:35:48,421 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2019-11-20 01:35:48,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:35:48,422 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-20 01:35:48,422 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-20 01:35:48,422 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-20 01:35:48,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-20 01:35:48,422 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:35:48,423 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:35:48,423 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:35:48,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:35:48,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1806982232, now seen corresponding path program 1 times [2019-11-20 01:35:48,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:35:48,424 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735185646] [2019-11-20 01:35:48,424 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:35:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:35:48,711 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 01:35:48,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735185646] [2019-11-20 01:35:48,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 01:35:48,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-20 01:35:48,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119786292] [2019-11-20 01:35:48,714 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 01:35:48,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:35:48,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 01:35:48,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-11-20 01:35:48,715 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 5 states. [2019-11-20 01:35:52,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:35:52,875 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-11-20 01:35:52,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-20 01:35:52,877 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-20 01:35:52,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:35:52,879 INFO L225 Difference]: With dead ends: 18 [2019-11-20 01:35:52,879 INFO L226 Difference]: Without dead ends: 14 [2019-11-20 01:35:52,880 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-20 01:35:52,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-20 01:35:52,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2019-11-20 01:35:52,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-20 01:35:52,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-20 01:35:52,892 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 7 [2019-11-20 01:35:52,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:35:52,893 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-20 01:35:52,893 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 01:35:52,893 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-20 01:35:52,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-20 01:35:52,894 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 01:35:52,894 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 01:35:52,895 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-20 01:35:52,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 01:35:52,895 INFO L82 PathProgramCache]: Analyzing trace with hash 83295881, now seen corresponding path program 1 times [2019-11-20 01:35:52,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 01:35:52,896 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770870950] [2019-11-20 01:35:52,896 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 01:35:52,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:35:53,252 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 29 [2019-11-20 01:35:53,347 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 01:35:53,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770870950] [2019-11-20 01:35:53,348 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416494673] [2019-11-20 01:35:53,348 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/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 01:35:53,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 01:35:53,381 WARN L253 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-20 01:35:53,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 01:35:53,506 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 01:35:53,506 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 01:35:53,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2019-11-20 01:35:53,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013057990] [2019-11-20 01:35:53,507 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-20 01:35:53,507 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 01:35:53,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-20 01:35:53,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-11-20 01:35:53,508 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 12 states. [2019-11-20 01:35:53,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 01:35:53,818 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2019-11-20 01:35:53,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 01:35:53,819 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-11-20 01:35:53,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 01:35:53,819 INFO L225 Difference]: With dead ends: 25 [2019-11-20 01:35:53,819 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 01:35:53,821 INFO L630 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 [2019-11-20 01:35:53,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 01:35:53,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 01:35:53,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 01:35:53,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 01:35:53,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-11-20 01:35:53,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 01:35:53,822 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 01:35:53,822 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-20 01:35:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 01:35:53,822 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 01:35:54,024 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 01:35:54,027 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 01:35:54,078 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L23(lines 23 26) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L21(lines 21 26) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L23-2(lines 21 26) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L440 ceAbstractionStarter]: At program point L19-2(lines 19 28) the Hoare annotation is: (let ((.cse0 (+ ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 ULTIMATE.start_main_~l~0) (<= ULTIMATE.start_main_~l~0 .cse0))) [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L19-3(lines 19 28) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-11-20 01:35:54,079 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L447 ceAbstractionStarter]: At program point L30(lines 11 31) the Hoare annotation is: true [2019-11-20 01:35:54,080 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L444 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L444 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-11-20 01:35:54,080 INFO L447 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-11-20 01:35:54,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 01:35:54 BoogieIcfgContainer [2019-11-20 01:35:54,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 01:35:54,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 01:35:54,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 01:35:54,093 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 01:35:54,093 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 01:35:48" (3/4) ... [2019-11-20 01:35:54,096 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 01:35:54,104 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-20 01:35:54,105 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 01:35:54,144 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_91a42668-ed44-40d3-9529-29dc3cb149bb/bin/uautomizer/witness.graphml [2019-11-20 01:35:54,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 01:35:54,146 INFO L168 Benchmark]: Toolchain (without parser) took 6595.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 951.9 MB in the end (delta: -1.8 MB). Peak memory consumption was 106.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:35:54,147 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:35:54,147 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 01:35:54,148 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:35:54,148 INFO L168 Benchmark]: Boogie Preprocessor took 26.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2019-11-20 01:35:54,149 INFO L168 Benchmark]: RCFGBuilder took 237.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-11-20 01:35:54,150 INFO L168 Benchmark]: TraceAbstraction took 5963.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 951.9 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. [2019-11-20 01:35:54,150 INFO L168 Benchmark]: Witness Printer took 52.35 ms. Allocated memory is still 1.1 GB. Free memory is still 951.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 01:35:54,153 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 274.06 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 108.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -152.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.37 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 26.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 237.75 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5963.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 951.9 MB in the end (delta: 123.8 MB). Peak memory consumption was 123.8 MB. Max. memory is 11.5 GB. * Witness Printer took 52.35 ms. Allocated memory is still 1.1 GB. Free memory is still 951.9 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: 19]: Loop Invariant Derived loop invariant: i + k + j <= l && l <= i + k + j - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Result: SAFE, OverallTime: 5.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 18 SDslu, 20 SDs, 0 SdLazy, 95 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 15 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 78 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, 3348 SizeOfPredicates, 6 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 18 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...