./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-invgen/fragtest_simple.i -s /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/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 a94bf9d893e116ed4626eae9cec69d948eb5bc31 .................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 13:09:05,629 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 13:09:05,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 13:09:05,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 13:09:05,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 13:09:05,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 13:09:05,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 13:09:05,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 13:09:05,642 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 13:09:05,643 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 13:09:05,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 13:09:05,644 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 13:09:05,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 13:09:05,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 13:09:05,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 13:09:05,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 13:09:05,647 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 13:09:05,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 13:09:05,649 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 13:09:05,651 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 13:09:05,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 13:09:05,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 13:09:05,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 13:09:05,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 13:09:05,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 13:09:05,656 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 13:09:05,656 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 13:09:05,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 13:09:05,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 13:09:05,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 13:09:05,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 13:09:05,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 13:09:05,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 13:09:05,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 13:09:05,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 13:09:05,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 13:09:05,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 13:09:05,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 13:09:05,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 13:09:05,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 13:09:05,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 13:09:05,661 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 13:09:05,671 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 13:09:05,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 13:09:05,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 13:09:05,672 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 13:09:05,672 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 13:09:05,672 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 13:09:05,672 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 13:09:05,672 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 13:09:05,672 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 13:09:05,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 13:09:05,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 13:09:05,674 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 13:09:05,674 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 13:09:05,675 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 13:09:05,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 13:09:05,675 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 13:09:05,675 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 13:09:05,675 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_7b0b44d1-adf1-444e-9ae2-610df0670fa2/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 -> a94bf9d893e116ed4626eae9cec69d948eb5bc31 [2019-12-07 13:09:05,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 13:09:05,782 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 13:09:05,784 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 13:09:05,785 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 13:09:05,785 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 13:09:05,786 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/../../sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-12-07 13:09:05,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/data/3927212b0/fc678e64ecfa4b5ca79b334f60de674d/FLAG085234eb5 [2019-12-07 13:09:06,218 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 13:09:06,218 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/sv-benchmarks/c/loop-invgen/fragtest_simple.i [2019-12-07 13:09:06,222 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/data/3927212b0/fc678e64ecfa4b5ca79b334f60de674d/FLAG085234eb5 [2019-12-07 13:09:06,232 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/data/3927212b0/fc678e64ecfa4b5ca79b334f60de674d [2019-12-07 13:09:06,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 13:09:06,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 13:09:06,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 13:09:06,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 13:09:06,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 13:09:06,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,240 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f146fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06, skipping insertion in model container [2019-12-07 13:09:06,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 13:09:06,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 13:09:06,353 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:09:06,355 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 13:09:06,397 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 13:09:06,407 INFO L208 MainTranslator]: Completed translation [2019-12-07 13:09:06,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06 WrapperNode [2019-12-07 13:09:06,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 13:09:06,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 13:09:06,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 13:09:06,408 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 13:09:06,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,418 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 13:09:06,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 13:09:06,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 13:09:06,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 13:09:06,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... [2019-12-07 13:09:06,446 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 13:09:06,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 13:09:06,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 13:09:06,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 13:09:06,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/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 [2019-12-07 13:09:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 13:09:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 13:09:06,607 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 13:09:06,607 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 13:09:06,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:09:06 BoogieIcfgContainer [2019-12-07 13:09:06,609 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 13:09:06,609 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 13:09:06,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 13:09:06,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 13:09:06,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 01:09:06" (1/3) ... [2019-12-07 13:09:06,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362a4103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:09:06, skipping insertion in model container [2019-12-07 13:09:06,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 01:09:06" (2/3) ... [2019-12-07 13:09:06,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@362a4103 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 01:09:06, skipping insertion in model container [2019-12-07 13:09:06,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:09:06" (3/3) ... [2019-12-07 13:09:06,613 INFO L109 eAbstractionObserver]: Analyzing ICFG fragtest_simple.i [2019-12-07 13:09:06,619 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 13:09:06,623 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 13:09:06,631 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 13:09:06,645 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 13:09:06,645 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 13:09:06,646 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 13:09:06,646 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 13:09:06,646 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 13:09:06,646 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 13:09:06,646 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 13:09:06,646 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 13:09:06,655 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-12-07 13:09:06,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-07 13:09:06,658 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:09:06,659 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:09:06,659 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:09:06,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:09:06,663 INFO L82 PathProgramCache]: Analyzing trace with hash 2013165435, now seen corresponding path program 1 times [2019-12-07 13:09:06,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:09:06,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125256473] [2019-12-07 13:09:06,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:09:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:09:06,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:09:06,739 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125256473] [2019-12-07 13:09:06,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:09:06,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 13:09:06,741 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830400620] [2019-12-07 13:09:06,745 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 13:09:06,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:09:06,753 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 13:09:06,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 13:09:06,755 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2019-12-07 13:09:06,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:09:06,766 INFO L93 Difference]: Finished difference Result 33 states and 47 transitions. [2019-12-07 13:09:06,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 13:09:06,767 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-12-07 13:09:06,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:09:06,773 INFO L225 Difference]: With dead ends: 33 [2019-12-07 13:09:06,773 INFO L226 Difference]: Without dead ends: 14 [2019-12-07 13:09:06,775 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 [2019-12-07 13:09:06,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-12-07 13:09:06,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-12-07 13:09:06,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 13:09:06,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2019-12-07 13:09:06,795 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 9 [2019-12-07 13:09:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:09:06,795 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2019-12-07 13:09:06,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 13:09:06,796 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2019-12-07 13:09:06,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-07 13:09:06,796 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:09:06,796 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:09:06,796 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:09:06,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:09:06,797 INFO L82 PathProgramCache]: Analyzing trace with hash -141231403, now seen corresponding path program 1 times [2019-12-07 13:09:06,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:09:06,797 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642561859] [2019-12-07 13:09:06,797 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:09:06,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:09:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:09:06,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642561859] [2019-12-07 13:09:06,844 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:09:06,844 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 13:09:06,844 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154336641] [2019-12-07 13:09:06,845 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 13:09:06,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:09:06,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 13:09:06,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 13:09:06,846 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 4 states. [2019-12-07 13:09:06,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:09:06,878 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-12-07 13:09:06,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:09:06,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-07 13:09:06,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:09:06,880 INFO L225 Difference]: With dead ends: 19 [2019-12-07 13:09:06,880 INFO L226 Difference]: Without dead ends: 17 [2019-12-07 13:09:06,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:09:06,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-07 13:09:06,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-12-07 13:09:06,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-07 13:09:06,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-07 13:09:06,885 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 11 [2019-12-07 13:09:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:09:06,885 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-07 13:09:06,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 13:09:06,885 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-07 13:09:06,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-07 13:09:06,886 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:09:06,886 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:09:06,886 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:09:06,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:09:06,886 INFO L82 PathProgramCache]: Analyzing trace with hash -449166904, now seen corresponding path program 1 times [2019-12-07 13:09:06,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:09:06,887 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941322735] [2019-12-07 13:09:06,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:09:06,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:09:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:09:06,925 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941322735] [2019-12-07 13:09:06,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 13:09:06,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-07 13:09:06,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706866610] [2019-12-07 13:09:06,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 13:09:06,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:09:06,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 13:09:06,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-07 13:09:06,926 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 5 states. [2019-12-07 13:09:06,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:09:06,979 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-12-07 13:09:06,979 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 13:09:06,979 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-12-07 13:09:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:09:06,980 INFO L225 Difference]: With dead ends: 33 [2019-12-07 13:09:06,980 INFO L226 Difference]: Without dead ends: 22 [2019-12-07 13:09:06,980 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-07 13:09:06,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-07 13:09:06,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-12-07 13:09:06,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-07 13:09:06,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 21 transitions. [2019-12-07 13:09:06,983 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 21 transitions. Word has length 15 [2019-12-07 13:09:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:09:06,984 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 21 transitions. [2019-12-07 13:09:06,984 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 13:09:06,984 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2019-12-07 13:09:06,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-07 13:09:06,984 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 13:09:06,984 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-07 13:09:06,984 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 13:09:06,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 13:09:06,985 INFO L82 PathProgramCache]: Analyzing trace with hash 704933133, now seen corresponding path program 1 times [2019-12-07 13:09:06,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 13:09:06,985 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287995945] [2019-12-07 13:09:06,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 13:09:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:09:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-07 13:09:07,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287995945] [2019-12-07 13:09:07,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156221085] [2019-12-07 13:09:07,043 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/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 [2019-12-07 13:09:07,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 13:09:07,072 INFO L264 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 6 conjunts are in the unsatisfiable core [2019-12-07 13:09:07,076 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 13:09:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 13:09:07,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-07 13:09:07,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2019-12-07 13:09:07,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060916414] [2019-12-07 13:09:07,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 13:09:07,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 13:09:07,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 13:09:07,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2019-12-07 13:09:07,131 INFO L87 Difference]: Start difference. First operand 18 states and 21 transitions. Second operand 11 states. [2019-12-07 13:09:07,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 13:09:07,308 INFO L93 Difference]: Finished difference Result 37 states and 46 transitions. [2019-12-07 13:09:07,308 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-12-07 13:09:07,308 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 17 [2019-12-07 13:09:07,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 13:09:07,309 INFO L225 Difference]: With dead ends: 37 [2019-12-07 13:09:07,309 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 13:09:07,310 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2019-12-07 13:09:07,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 13:09:07,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 13:09:07,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 13:09:07,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 13:09:07,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-12-07 13:09:07,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 13:09:07,310 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 13:09:07,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 13:09:07,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 13:09:07,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 13:09:07,511 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 13:09:07,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 13:09:07,633 INFO L242 CegarLoopResult]: At program point L31-2(lines 31 39) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~i~0 0) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)) (and (<= 1 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0)))) [2019-12-07 13:09:07,633 INFO L246 CegarLoopResult]: For program point L31-3(lines 31 39) no Hoare annotation was computed. [2019-12-07 13:09:07,633 INFO L249 CegarLoopResult]: At program point L40(lines 10 41) the Hoare annotation is: true [2019-12-07 13:09:07,633 INFO L246 CegarLoopResult]: For program point L36(lines 36 38) no Hoare annotation was computed. [2019-12-07 13:09:07,633 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 13:09:07,633 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L246 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L242 CegarLoopResult]: At program point L24-3(lines 24 28) the Hoare annotation is: (or (and (<= ULTIMATE.start_main_~i~0 0) (<= 0 ULTIMATE.start_main_~k~0)) (and (<= 1 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0))) [2019-12-07 13:09:07,634 INFO L246 CegarLoopResult]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L246 CegarLoopResult]: For program point L20-1(lines 20 22) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 13:09:07,634 INFO L242 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (let ((.cse0 (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) (or (and (<= ULTIMATE.start_main_~i~0 0) .cse0 (<= ULTIMATE.start_main_~n~0 ULTIMATE.start_main_~j~0)) (and (<= ULTIMATE.start_main_~i~0 ULTIMATE.start_main_~k~0) .cse0 (<= ULTIMATE.start_main_~n~0 (+ ULTIMATE.start_main_~k~0 ULTIMATE.start_main_~j~0))))) [2019-12-07 13:09:07,635 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 13:09:07,635 INFO L246 CegarLoopResult]: For program point L17-1(lines 17 19) no Hoare annotation was computed. [2019-12-07 13:09:07,635 INFO L242 CegarLoopResult]: At program point L17-3(lines 17 19) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~k~0) [2019-12-07 13:09:07,635 INFO L246 CegarLoopResult]: For program point L17-4(lines 10 41) no Hoare annotation was computed. [2019-12-07 13:09:07,635 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 13:09:07,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 01:09:07 BoogieIcfgContainer [2019-12-07 13:09:07,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 13:09:07,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 13:09:07,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 13:09:07,649 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 13:09:07,649 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 01:09:06" (3/4) ... [2019-12-07 13:09:07,651 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 13:09:07,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 13:09:07,658 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 13:09:07,695 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7b0b44d1-adf1-444e-9ae2-610df0670fa2/bin/uautomizer/witness.graphml [2019-12-07 13:09:07,695 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 13:09:07,697 INFO L168 Benchmark]: Toolchain (without parser) took 1461.82 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 938.7 MB in the beginning and 960.2 MB in the end (delta: -21.6 MB). Peak memory consumption was 85.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:09:07,697 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 13:09:07,698 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-12-07 13:09:07,698 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.09 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. [2019-12-07 13:09:07,698 INFO L168 Benchmark]: Boogie Preprocessor took 14.33 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. [2019-12-07 13:09:07,699 INFO L168 Benchmark]: RCFGBuilder took 162.61 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. [2019-12-07 13:09:07,699 INFO L168 Benchmark]: TraceAbstraction took 1039.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.6 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. [2019-12-07 13:09:07,699 INFO L168 Benchmark]: Witness Printer took 46.47 ms. Allocated memory is still 1.1 GB. Free memory was 965.6 MB in the beginning and 960.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 13:09:07,701 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 955.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 172.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 938.7 MB in the beginning and 1.1 GB in the end (delta: -165.7 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.09 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 14.33 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. * RCFGBuilder took 162.61 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: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1039.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 965.6 MB in the end (delta: 119.6 MB). Peak memory consumption was 119.6 MB. Max. memory is 11.5 GB. * Witness Printer took 46.47 ms. Allocated memory is still 1.1 GB. Free memory was 965.6 MB in the beginning and 960.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 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: 24]: Loop Invariant Derived loop invariant: (i <= 0 && 0 <= k) || (1 <= k && i <= k) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: ((i <= 0 && !(0 == cond)) && n <= j) || ((i <= k && !(0 == cond)) && n <= k + j) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((i <= 0 && 0 <= k) && n <= j) || ((1 <= k && i <= k) && n <= k + j) - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= k - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 2, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 49 SDtfs, 73 SDslu, 56 SDs, 0 SdLazy, 124 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 18 NumberOfFragments, 67 HoareAnnotationTreeSize, 5 FomulaSimplifications, 84 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 68 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 69 NumberOfCodeBlocks, 69 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 2454 SizeOfPredicates, 3 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 6/10 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...