./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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-cad4683 [2019-11-16 00:03:53,209 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-16 00:03:53,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-16 00:03:53,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-16 00:03:53,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-16 00:03:53,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-16 00:03:53,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-16 00:03:53,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-16 00:03:53,241 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-16 00:03:53,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-16 00:03:53,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-16 00:03:53,248 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-16 00:03:53,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-16 00:03:53,250 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-16 00:03:53,251 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-16 00:03:53,252 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-16 00:03:53,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-16 00:03:53,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-16 00:03:53,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-16 00:03:53,258 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-16 00:03:53,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-16 00:03:53,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-16 00:03:53,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-16 00:03:53,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-16 00:03:53,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-16 00:03:53,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-16 00:03:53,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-16 00:03:53,271 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-16 00:03:53,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-16 00:03:53,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-16 00:03:53,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-16 00:03:53,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-16 00:03:53,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-16 00:03:53,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-16 00:03:53,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-16 00:03:53,276 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-16 00:03:53,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-16 00:03:53,277 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-16 00:03:53,277 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-16 00:03:53,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-16 00:03:53,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-16 00:03:53,279 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-16 00:03:53,312 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-16 00:03:53,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-16 00:03:53,313 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-16 00:03:53,313 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-16 00:03:53,313 INFO L138 SettingsManager]: * Use SBE=true [2019-11-16 00:03:53,313 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-16 00:03:53,314 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-16 00:03:53,314 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-16 00:03:53,314 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-16 00:03:53,314 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-16 00:03:53,314 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-16 00:03:53,315 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-16 00:03:53,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-16 00:03:53,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-16 00:03:53,316 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-16 00:03:53,316 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-16 00:03:53,316 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-16 00:03:53,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-16 00:03:53,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-16 00:03:53,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-16 00:03:53,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-16 00:03:53,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-16 00:03:53,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-16 00:03:53,318 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_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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 [2019-11-16 00:03:53,341 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-16 00:03:53,351 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-16 00:03:53,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-16 00:03:53,354 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-16 00:03:53,355 INFO L275 PluginConnector]: CDTParser initialized [2019-11-16 00:03:53,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-16 00:03:53,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/data/83dd42ed6/3251c0cfdbed40f382398711144cdb1d/FLAGf286a1676 [2019-11-16 00:03:53,780 INFO L306 CDTParser]: Found 1 translation units. [2019-11-16 00:03:53,781 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-16 00:03:53,786 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/data/83dd42ed6/3251c0cfdbed40f382398711144cdb1d/FLAGf286a1676 [2019-11-16 00:03:54,210 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/data/83dd42ed6/3251c0cfdbed40f382398711144cdb1d [2019-11-16 00:03:54,212 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-16 00:03:54,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-16 00:03:54,214 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-16 00:03:54,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-16 00:03:54,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-16 00:03:54,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@226dc3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54, skipping insertion in model container [2019-11-16 00:03:54,222 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,234 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-16 00:03:54,252 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-16 00:03:54,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:03:54,500 INFO L188 MainTranslator]: Completed pre-run [2019-11-16 00:03:54,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-16 00:03:54,536 INFO L192 MainTranslator]: Completed translation [2019-11-16 00:03:54,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54 WrapperNode [2019-11-16 00:03:54,537 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-16 00:03:54,538 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-16 00:03:54,538 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-16 00:03:54,538 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-16 00:03:54,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,550 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,566 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-16 00:03:54,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-16 00:03:54,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-16 00:03:54,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-16 00:03:54,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,576 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,580 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... [2019-11-16 00:03:54,581 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-16 00:03:54,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-16 00:03:54,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-16 00:03:54,582 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-16 00:03:54,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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 [2019-11-16 00:03:54,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-16 00:03:54,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-16 00:03:54,873 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-16 00:03:54,873 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-16 00:03:54,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:54 BoogieIcfgContainer [2019-11-16 00:03:54,874 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-16 00:03:54,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-16 00:03:54,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-16 00:03:54,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-16 00:03:54,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:03:54" (1/3) ... [2019-11-16 00:03:54,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d5cead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:54, skipping insertion in model container [2019-11-16 00:03:54,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:03:54" (2/3) ... [2019-11-16 00:03:54,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26d5cead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:03:54, skipping insertion in model container [2019-11-16 00:03:54,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:54" (3/3) ... [2019-11-16 00:03:54,881 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2019-11-16 00:03:54,889 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-16 00:03:54,907 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-16 00:03:54,917 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-16 00:03:54,946 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-16 00:03:54,946 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-16 00:03:54,946 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-16 00:03:54,946 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-16 00:03:54,946 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-16 00:03:54,947 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-16 00:03:54,947 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-16 00:03:54,947 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-16 00:03:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-16 00:03:54,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-16 00:03:54,967 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:03:54,968 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:03:54,969 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:03:54,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:54,975 INFO L82 PathProgramCache]: Analyzing trace with hash 179596396, now seen corresponding path program 1 times [2019-11-16 00:03:54,982 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:54,983 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816866377] [2019-11-16 00:03:54,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:54,984 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:54,984 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:55,177 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816866377] [2019-11-16 00:03:55,178 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-16 00:03:55,178 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-16 00:03:55,178 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188782865] [2019-11-16 00:03:55,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-16 00:03:55,181 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:03:55,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-16 00:03:55,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-16 00:03:55,194 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-11-16 00:03:55,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:03:55,359 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-16 00:03:55,360 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-16 00:03:55,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-11-16 00:03:55,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:03:55,372 INFO L225 Difference]: With dead ends: 32 [2019-11-16 00:03:55,372 INFO L226 Difference]: Without dead ends: 10 [2019-11-16 00:03:55,375 INFO L600 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 [2019-11-16 00:03:55,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-16 00:03:55,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-16 00:03:55,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-16 00:03:55,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-16 00:03:55,406 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-11-16 00:03:55,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:03:55,406 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-16 00:03:55,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-16 00:03:55,406 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-16 00:03:55,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-16 00:03:55,407 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:03:55,408 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:03:55,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:03:55,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:55,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1270581676, now seen corresponding path program 1 times [2019-11-16 00:03:55,409 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:55,409 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262775283] [2019-11-16 00:03:55,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:55,410 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:55,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:55,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:55,665 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-11-16 00:03:55,707 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:55,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262775283] [2019-11-16 00:03:55,707 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571234635] [2019-11-16 00:03:55,707 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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 [2019-11-16 00:03:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:55,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-16 00:03:55,752 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:55,815 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:03:55,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:55,850 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:03:55,850 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-11-16 00:03:55,850 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547056493] [2019-11-16 00:03:55,852 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-16 00:03:55,852 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:03:55,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-16 00:03:55,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2019-11-16 00:03:55,853 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 9 states. [2019-11-16 00:03:56,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:03:56,029 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-11-16 00:03:56,031 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-16 00:03:56,031 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 9 [2019-11-16 00:03:56,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:03:56,032 INFO L225 Difference]: With dead ends: 18 [2019-11-16 00:03:56,032 INFO L226 Difference]: Without dead ends: 12 [2019-11-16 00:03:56,033 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-16 00:03:56,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-16 00:03:56,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-16 00:03:56,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-16 00:03:56,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-16 00:03:56,036 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2019-11-16 00:03:56,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:03:56,036 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-16 00:03:56,036 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-16 00:03:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-16 00:03:56,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-16 00:03:56,037 INFO L372 BasicCegarLoop]: Found error trace [2019-11-16 00:03:56,037 INFO L380 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-16 00:03:56,239 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:03:56,239 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-16 00:03:56,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-16 00:03:56,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1196220844, now seen corresponding path program 2 times [2019-11-16 00:03:56,240 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-11-16 00:03:56,240 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703157370] [2019-11-16 00:03:56,240 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:56,240 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-11-16 00:03:56,240 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-16 00:03:56,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-16 00:03:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-16 00:03:56,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703157370] [2019-11-16 00:03:56,416 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931376204] [2019-11-16 00:03:56,417 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/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 [2019-11-16 00:03:56,465 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-11-16 00:03:56,466 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-16 00:03:56,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 27 conjunts are in the unsatisfiable core [2019-11-16 00:03:56,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-16 00:03:56,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-16 00:03:56,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-16 00:03:56,565 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-16 00:03:56,566 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2019-11-16 00:03:56,566 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133405328] [2019-11-16 00:03:56,566 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-11-16 00:03:56,566 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-16 00:03:56,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-11-16 00:03:56,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-11-16 00:03:56,567 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 12 states. [2019-11-16 00:03:56,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-16 00:03:56,768 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2019-11-16 00:03:56,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-16 00:03:56,768 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 11 [2019-11-16 00:03:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-16 00:03:56,769 INFO L225 Difference]: With dead ends: 15 [2019-11-16 00:03:56,769 INFO L226 Difference]: Without dead ends: 0 [2019-11-16 00:03:56,770 INFO L600 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 [2019-11-16 00:03:56,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-16 00:03:56,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-16 00:03:56,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-16 00:03:56,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-16 00:03:56,771 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-16 00:03:56,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-16 00:03:56,771 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-16 00:03:56,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-11-16 00:03:56,771 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-16 00:03:56,771 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-16 00:03:56,972 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-16 00:03:56,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-16 00:03:57,038 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-16 00:03:57,038 INFO L446 ceAbstractionStarter]: At program point L60(lines 8 65) the Hoare annotation is: true [2019-11-16 00:03:57,038 INFO L443 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-11-16 00:03:57,038 INFO L443 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-11-16 00:03:57,039 INFO L443 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-11-16 00:03:57,040 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-11-16 00:03:57,040 INFO L439 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))) [2019-11-16 00:03:57,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:03:57 BoogieIcfgContainer [2019-11-16 00:03:57,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-16 00:03:57,058 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-16 00:03:57,058 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-16 00:03:57,058 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-16 00:03:57,058 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:03:54" (3/4) ... [2019-11-16 00:03:57,062 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-16 00:03:57,074 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-11-16 00:03:57,075 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-16 00:03:57,153 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_5004c5f8-d705-4fe5-9478-ddcd6ab29d5d/bin/uautomizer/witness.graphml [2019-11-16 00:03:57,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-16 00:03:57,154 INFO L168 Benchmark]: Toolchain (without parser) took 2940.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 948.8 MB in the beginning and 924.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 132.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:57,155 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:57,155 INFO L168 Benchmark]: CACSL2BoogieTranslator took 322.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:57,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:57,157 INFO L168 Benchmark]: Boogie Preprocessor took 14.92 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-16 00:03:57,161 INFO L168 Benchmark]: RCFGBuilder took 292.71 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:57,161 INFO L168 Benchmark]: TraceAbstraction took 2182.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 931.1 MB in the end (delta: 145.3 MB). Peak memory consumption was 145.3 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:57,162 INFO L168 Benchmark]: Witness Printer took 95.37 ms. Allocated memory is still 1.1 GB. Free memory was 931.1 MB in the beginning and 924.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2019-11-16 00:03:57,164 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 322.93 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.5 MB). Free memory was 948.8 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.60 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.92 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 292.71 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: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2182.18 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 931.1 MB in the end (delta: 145.3 MB). Peak memory consumption was 145.3 MB. Max. memory is 11.5 GB. * Witness Printer took 95.37 ms. Allocated memory is still 1.1 GB. Free memory was 931.1 MB in the beginning and 924.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 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: 2.0s, 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, 0.8s 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, 0.7s 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...