./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.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_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.i -s /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/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 225f0ddf9f4fc2bb07a34316827f4c052bf2e72a ..................................................................................................................................................................................................................................................................................................................................................... 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 14:06:09,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:06:09,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:06:09,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:06:09,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:06:09,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:06:09,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:06:09,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:06:09,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:06:09,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:06:09,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:06:09,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:06:09,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:06:09,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:06:09,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:06:09,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:06:09,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:06:09,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:06:09,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:06:09,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:06:09,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:06:09,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:06:09,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:06:09,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:06:09,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:06:09,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:06:09,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:06:09,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:06:09,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:06:09,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:06:09,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:06:09,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:06:09,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:06:09,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:06:09,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:06:09,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:06:09,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:06:09,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:06:09,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:06:09,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:06:09,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:06:09,736 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:06:09,745 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:06:09,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:06:09,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:06:09,746 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:06:09,746 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:06:09,746 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:06:09,746 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:06:09,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:06:09,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:06:09,747 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:06:09,747 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:06:09,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:06:09,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:06:09,749 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:06:09,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:06:09,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:06:09,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:06:09,749 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_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/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 -> 225f0ddf9f4fc2bb07a34316827f4c052bf2e72a [2019-12-07 14:06:09,850 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:06:09,858 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:06:09,860 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:06:09,861 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:06:09,861 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:06:09,862 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/../../sv-benchmarks/c/loop-lit/gsv2008.i [2019-12-07 14:06:09,898 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/data/4e25cd2c8/be567eb5ab5e4a12bf04b646622ad0ca/FLAG3a823a830 [2019-12-07 14:06:10,225 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:06:10,225 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/sv-benchmarks/c/loop-lit/gsv2008.i [2019-12-07 14:06:10,229 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/data/4e25cd2c8/be567eb5ab5e4a12bf04b646622ad0ca/FLAG3a823a830 [2019-12-07 14:06:10,237 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/data/4e25cd2c8/be567eb5ab5e4a12bf04b646622ad0ca [2019-12-07 14:06:10,239 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:06:10,240 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:06:10,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:06:10,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:06:10,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:06:10,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,245 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fc018c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10, skipping insertion in model container [2019-12-07 14:06:10,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:06:10,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:06:10,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:06:10,358 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:06:10,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:06:10,410 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:06:10,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10 WrapperNode [2019-12-07 14:06:10,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:06:10,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:06:10,411 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:06:10,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:06:10,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:06:10,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:06:10,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:06:10,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:06:10,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,447 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... [2019-12-07 14:06:10,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:06:10,448 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:06:10,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:06:10,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:06:10,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/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 14:06:10,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:06:10,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:06:10,582 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:06:10,582 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 14:06:10,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:10 BoogieIcfgContainer [2019-12-07 14:06:10,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:06:10,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:06:10,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:06:10,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:06:10,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:06:10" (1/3) ... [2019-12-07 14:06:10,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134b445f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:06:10, skipping insertion in model container [2019-12-07 14:06:10,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:06:10" (2/3) ... [2019-12-07 14:06:10,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134b445f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:06:10, skipping insertion in model container [2019-12-07 14:06:10,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:10" (3/3) ... [2019-12-07 14:06:10,588 INFO L109 eAbstractionObserver]: Analyzing ICFG gsv2008.i [2019-12-07 14:06:10,594 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:06:10,597 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:06:10,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 14:06:10,619 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:06:10,619 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:06:10,619 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:06:10,619 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:06:10,619 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:06:10,619 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:06:10,619 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:06:10,619 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:06:10,628 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-12-07 14:06:10,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 14:06:10,631 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:06:10,631 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:06:10,632 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:06:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:10,635 INFO L82 PathProgramCache]: Analyzing trace with hash 922199370, now seen corresponding path program 1 times [2019-12-07 14:06:10,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:10,641 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945851129] [2019-12-07 14:06:10,641 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:10,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:10,710 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 14:06:10,711 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945851129] [2019-12-07 14:06:10,711 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:06:10,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:06:10,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918560130] [2019-12-07 14:06:10,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-07 14:06:10,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:06:10,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-07 14:06:10,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-07 14:06:10,726 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-12-07 14:06:10,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:06:10,737 INFO L93 Difference]: Finished difference Result 19 states and 22 transitions. [2019-12-07 14:06:10,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-07 14:06:10,738 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-12-07 14:06:10,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:06:10,743 INFO L225 Difference]: With dead ends: 19 [2019-12-07 14:06:10,743 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 14:06:10,745 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 14:06:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 14:06:10,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 14:06:10,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 14:06:10,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 14:06:10,765 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 6 [2019-12-07 14:06:10,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:06:10,765 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 14:06:10,765 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-07 14:06:10,765 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 14:06:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 14:06:10,766 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:06:10,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 14:06:10,766 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:06:10,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:10,766 INFO L82 PathProgramCache]: Analyzing trace with hash 922080206, now seen corresponding path program 1 times [2019-12-07 14:06:10,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:10,766 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147309179] [2019-12-07 14:06:10,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:10,792 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 14:06:10,792 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147309179] [2019-12-07 14:06:10,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:06:10,792 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:06:10,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838280510] [2019-12-07 14:06:10,793 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:06:10,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:06:10,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:06:10,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:06:10,794 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 3 states. [2019-12-07 14:06:10,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:06:10,802 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2019-12-07 14:06:10,802 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:06:10,802 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-07 14:06:10,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:06:10,802 INFO L225 Difference]: With dead ends: 12 [2019-12-07 14:06:10,803 INFO L226 Difference]: Without dead ends: 8 [2019-12-07 14:06:10,803 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:06:10,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-12-07 14:06:10,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-12-07 14:06:10,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-12-07 14:06:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-12-07 14:06:10,805 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2019-12-07 14:06:10,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:06:10,805 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-12-07 14:06:10,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:06:10,805 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-12-07 14:06:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:06:10,806 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:06:10,806 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:06:10,806 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:06:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:06:10,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1478619311, now seen corresponding path program 1 times [2019-12-07 14:06:10,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:06:10,806 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193634648] [2019-12-07 14:06:10,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:06:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:10,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:06:10,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193634648] [2019-12-07 14:06:10,854 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648095028] [2019-12-07 14:06:10,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/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 14:06:10,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:06:10,877 INFO L264 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 10 conjunts are in the unsatisfiable core [2019-12-07 14:06:10,881 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 14:06:10,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 14:06:10,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:06:10,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-12-07 14:06:10,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2019-12-07 14:06:10,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029102429] [2019-12-07 14:06:10,931 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-07 14:06:10,931 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:06:10,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-07 14:06:10,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-07 14:06:10,932 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2019-12-07 14:06:10,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:06:10,969 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2019-12-07 14:06:10,969 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 14:06:10,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-12-07 14:06:10,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:06:10,969 INFO L225 Difference]: With dead ends: 8 [2019-12-07 14:06:10,969 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:06:10,970 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-12-07 14:06:10,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:06:10,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:06:10,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:06:10,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:06:10,970 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 14:06:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:06:10,970 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:06:10,970 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-07 14:06:10,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:06:10,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:06:11,171 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 14:06:11,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 14:06:11,221 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 14:06:11,222 INFO L242 CegarLoopResult]: At program point L15-2(lines 15 18) the Hoare annotation is: (or (<= (+ ULTIMATE.start_main_~x~0 2) ULTIMATE.start_main_~y~0) (<= (+ ULTIMATE.start_main_~x~0 50) 0)) [2019-12-07 14:06:11,222 INFO L246 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2019-12-07 14:06:11,222 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 14:06:11,223 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 14:06:11,223 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-12-07 14:06:11,223 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 14:06:11,224 INFO L249 CegarLoopResult]: At program point L20(lines 10 21) the Hoare annotation is: true [2019-12-07 14:06:11,224 INFO L246 CegarLoopResult]: For program point L14(line 14) no Hoare annotation was computed. [2019-12-07 14:06:11,224 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 14:06:11,224 INFO L249 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-12-07 14:06:11,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:06:11 BoogieIcfgContainer [2019-12-07 14:06:11,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:06:11,254 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:06:11,254 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:06:11,254 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:06:11,254 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:06:10" (3/4) ... [2019-12-07 14:06:11,257 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:06:11,265 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 14:06:11,265 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 14:06:11,291 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5043b3be-8baa-4a38-b7b4-41eb50b7d26c/bin/uautomizer/witness.graphml [2019-12-07 14:06:11,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:06:11,293 INFO L168 Benchmark]: Toolchain (without parser) took 1052.87 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 1.0 GB in the end (delta: -79.6 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:11,293 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:06:11,294 INFO L168 Benchmark]: CACSL2BoogieTranslator took 170.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:11,294 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.39 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 14:06:11,294 INFO L168 Benchmark]: Boogie Preprocessor took 11.73 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 14:06:11,294 INFO L168 Benchmark]: RCFGBuilder took 135.33 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:11,295 INFO L168 Benchmark]: TraceAbstraction took 669.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:11,295 INFO L168 Benchmark]: Witness Printer took 38.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 11.5 GB. [2019-12-07 14:06:11,297 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 958.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 170.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 93.8 MB). Free memory was 942.6 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.39 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 11.73 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 135.33 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: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 669.60 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 47.9 MB). Peak memory consumption was 47.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 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: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: x + 2 <= y || x + 50 <= 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 14 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 312 SizeOfPredicates, 4 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 1/2 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...