./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/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 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a ............................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:52:13,582 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:52:13,584 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:52:13,594 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:52:13,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:52:13,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:52:13,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:52:13,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:52:13,601 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:52:13,601 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:52:13,602 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:52:13,603 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:52:13,604 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:52:13,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:52:13,605 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:52:13,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:52:13,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:52:13,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:52:13,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:52:13,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:52:13,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:52:13,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:52:13,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:52:13,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:52:13,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:52:13,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:52:13,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:52:13,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:52:13,627 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:52:13,628 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:52:13,629 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:52:13,629 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:52:13,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:52:13,631 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:52:13,634 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:52:13,635 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:52:13,635 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:52:13,636 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:52:13,636 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:52:13,640 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:52:13,641 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:52:13,642 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:52:13,659 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:52:13,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:52:13,661 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:52:13,661 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:52:13,661 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:52:13,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:52:13,662 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:52:13,662 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:52:13,662 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:52:13,662 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:52:13,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:52:13,664 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:52:13,664 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:52:13,664 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:52:13,664 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:52:13,665 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:52:13,665 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:52:13,665 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:52:13,665 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:52:13,666 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:52:13,666 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:52:13,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:13,666 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:52:13,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:52:13,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:52:13,667 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:52:13,667 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:52:13,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:52:13,668 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_efc458d3-e230-41a9-8669-f0d3bf30bcde/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 -> 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a [2019-11-25 08:52:13,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:52:13,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:52:13,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:52:13,848 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:52:13,849 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:52:13,850 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-25 08:52:13,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/data/d49e21ea7/c158246418414e3bae15caa0b907cc8b/FLAG695c19f9d [2019-11-25 08:52:14,291 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:52:14,293 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-25 08:52:14,299 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/data/d49e21ea7/c158246418414e3bae15caa0b907cc8b/FLAG695c19f9d [2019-11-25 08:52:14,315 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/data/d49e21ea7/c158246418414e3bae15caa0b907cc8b [2019-11-25 08:52:14,318 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:52:14,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:52:14,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:14,321 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:52:14,324 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:52:14,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659965a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14, skipping insertion in model container [2019-11-25 08:52:14,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:52:14,353 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:52:14,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:14,514 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:52:14,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:52:14,598 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:52:14,598 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14 WrapperNode [2019-11-25 08:52:14,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:52:14,599 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:14,600 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:52:14,600 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:52:14,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,611 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,624 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:52:14,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:52:14,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:52:14,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:52:14,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,633 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,633 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... [2019-11-25 08:52:14,638 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:52:14,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:52:14,638 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:52:14,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:52:14,639 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:52:14,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:52:14,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:52:14,847 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:52:14,848 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-25 08:52:14,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:14 BoogieIcfgContainer [2019-11-25 08:52:14,849 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:52:14,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:52:14,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:52:14,852 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:52:14,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:52:14" (1/3) ... [2019-11-25 08:52:14,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b76acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:14, skipping insertion in model container [2019-11-25 08:52:14,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:52:14" (2/3) ... [2019-11-25 08:52:14,853 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b76acd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:52:14, skipping insertion in model container [2019-11-25 08:52:14,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:14" (3/3) ... [2019-11-25 08:52:14,855 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2019-11-25 08:52:14,872 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:52:14,878 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:52:14,887 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:52:14,909 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:52:14,909 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:52:14,910 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:52:14,910 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:52:14,910 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:52:14,911 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:52:14,911 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:52:14,911 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:52:14,927 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-25 08:52:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-25 08:52:14,932 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:14,933 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:14,934 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:14,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:14,939 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2019-11-25 08:52:14,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:14,948 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821844018] [2019-11-25 08:52:14,948 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:15,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:15,144 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821844018] [2019-11-25 08:52:15,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:52:15,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-25 08:52:15,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826621849] [2019-11-25 08:52:15,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-25 08:52:15,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:15,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-25 08:52:15,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-25 08:52:15,160 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-11-25 08:52:15,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:15,320 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-25 08:52:15,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-25 08:52:15,322 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-25 08:52:15,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:15,331 INFO L225 Difference]: With dead ends: 32 [2019-11-25 08:52:15,331 INFO L226 Difference]: Without dead ends: 10 [2019-11-25 08:52:15,334 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-25 08:52:15,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-25 08:52:15,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-25 08:52:15,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-25 08:52:15,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-25 08:52:15,360 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-25 08:52:15,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:15,361 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-25 08:52:15,361 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-25 08:52:15,361 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-25 08:52:15,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-25 08:52:15,361 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:15,362 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:15,362 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:15,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:15,362 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2019-11-25 08:52:15,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:15,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199949273] [2019-11-25 08:52:15,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:15,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:15,507 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199949273] [2019-11-25 08:52:15,508 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [916067649] [2019-11-25 08:52:15,508 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:15,554 INFO L255 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-25 08:52:15,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:15,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:15,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:15,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:52:15,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-11-25 08:52:15,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606504018] [2019-11-25 08:52:15,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:52:15,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:15,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:52:15,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:52:15,655 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-11-25 08:52:15,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:15,822 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-25 08:52:15,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:52:15,823 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-11-25 08:52:15,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:15,824 INFO L225 Difference]: With dead ends: 18 [2019-11-25 08:52:15,824 INFO L226 Difference]: Without dead ends: 12 [2019-11-25 08:52:15,825 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:52:15,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-25 08:52:15,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-25 08:52:15,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-25 08:52:15,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-25 08:52:15,828 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-25 08:52:15,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:15,828 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-25 08:52:15,829 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:52:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-25 08:52:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-25 08:52:15,829 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:52:15,829 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:52:16,030 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:16,030 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:52:16,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:52:16,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1196220844, now seen corresponding path program 2 times [2019-11-25 08:52:16,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:52:16,031 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783766123] [2019-11-25 08:52:16,031 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:52:16,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:52:16,185 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-25 08:52:16,185 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783766123] [2019-11-25 08:52:16,186 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080020176] [2019-11-25 08:52:16,186 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:16,223 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-25 08:52:16,223 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-25 08:52:16,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-25 08:52:16,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-25 08:52:16,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-25 08:52:16,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:52:16,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-25 08:52:16,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2019-11-25 08:52:16,335 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924412865] [2019-11-25 08:52:16,335 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-25 08:52:16,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:52:16,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-25 08:52:16,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-25 08:52:16,336 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2019-11-25 08:52:16,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:52:16,544 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-11-25 08:52:16,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-25 08:52:16,544 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-11-25 08:52:16,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:52:16,545 INFO L225 Difference]: With dead ends: 15 [2019-11-25 08:52:16,545 INFO L226 Difference]: Without dead ends: 0 [2019-11-25 08:52:16,545 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-11-25 08:52:16,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-25 08:52:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-25 08:52:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-25 08:52:16,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-25 08:52:16,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-25 08:52:16,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:52:16,546 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-25 08:52:16,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-25 08:52:16,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-25 08:52:16,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-25 08:52:16,747 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-25 08:52:16,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-25 08:52:16,815 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-25 08:52:16,815 INFO L447 ceAbstractionStarter]: At program point L60(lines 8 65) the Hoare annotation is: true [2019-11-25 08:52:16,815 INFO L444 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-11-25 08:52:16,815 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-11-25 08:52:16,816 INFO L444 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-11-25 08:52:16,817 INFO L440 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__y~0)) (.cse0 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-11-25 08:52:16,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:52:16 BoogieIcfgContainer [2019-11-25 08:52:16,829 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:52:16,830 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:52:16,830 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:52:16,830 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:52:16,831 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:52:14" (3/4) ... [2019-11-25 08:52:16,834 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-25 08:52:16,843 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-25 08:52:16,843 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-25 08:52:16,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_efc458d3-e230-41a9-8669-f0d3bf30bcde/bin/uautomizer/witness.graphml [2019-11-25 08:52:16,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:52:16,914 INFO L168 Benchmark]: Toolchain (without parser) took 2594.00 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 972.2 MB in the end (delta: -31.5 MB). Peak memory consumption was 112.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,914 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:52:16,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,921 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,921 INFO L168 Benchmark]: Boogie Preprocessor took 13.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,922 INFO L168 Benchmark]: RCFGBuilder took 210.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,922 INFO L168 Benchmark]: TraceAbstraction took 1980.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.2 MB in the end (delta: 146.4 MB). Peak memory consumption was 146.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,922 INFO L168 Benchmark]: Witness Printer took 81.55 ms. Allocated memory is still 1.2 GB. Free memory was 976.2 MB in the beginning and 972.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:52:16,925 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 278.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -200.6 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 210.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.9 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1980.05 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.2 MB in the end (delta: 146.4 MB). Peak memory consumption was 146.4 MB. Max. memory is 11.5 GB. * Witness Printer took 81.55 ms. Allocated memory is still 1.2 GB. Free memory was 976.2 MB in the beginning and 972.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x + main__j <= main__i + main__y && main__i + main__y <= main__x + main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 24 SDtfs, 32 SDslu, 56 SDs, 0 SdLazy, 118 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 3 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 2915 SizeOfPredicates, 12 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...