./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d9ecf0997a3226968b15d351ec48dae1cc4b70e9 ................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:28:36,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:28:36,256 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:28:36,350 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:28:36,351 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:28:36,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:28:36,356 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:28:36,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:28:36,362 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:28:36,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:28:36,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:28:36,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:28:36,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:28:36,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:28:36,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:28:36,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:28:36,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:28:36,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:28:36,381 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:28:36,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:28:36,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:28:36,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:28:36,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:28:36,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:28:36,397 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:28:36,397 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:28:36,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:28:36,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:28:36,400 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:28:36,402 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:28:36,403 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:28:36,404 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:28:36,405 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:28:36,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:28:36,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:28:36,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:28:36,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:28:36,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:28:36,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:28:36,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:28:36,414 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:28:36,416 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:28:36,447 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:28:36,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:28:36,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:28:36,450 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:28:36,451 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:28:36,451 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:28:36,452 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:28:36,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:28:36,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:28:36,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:28:36,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:28:36,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:28:36,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:28:36,455 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:28:36,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:28:36,456 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:28:36,457 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:28:36,457 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:28:36,457 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:28:36,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:28:36,458 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:28:36,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:28:36,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:28:36,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:28:36,459 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:28:36,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:28:36,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:28:36,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:28:36,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:28:36,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2020-12-01 15:28:36,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:28:36,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:28:36,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:28:36,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:28:36,805 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:28:36,808 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-12-01 15:28:36,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/data/b93d2f52d/2beb9140896e4dab9ed9301bb8d4cb70/FLAGcb0f473e7 [2020-12-01 15:28:37,449 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:28:37,451 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-12-01 15:28:37,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/data/b93d2f52d/2beb9140896e4dab9ed9301bb8d4cb70/FLAGcb0f473e7 [2020-12-01 15:28:37,788 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/data/b93d2f52d/2beb9140896e4dab9ed9301bb8d4cb70 [2020-12-01 15:28:37,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:28:37,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:28:37,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:37,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:28:37,799 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:28:37,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:37" (1/1) ... [2020-12-01 15:28:37,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29206d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:37, skipping insertion in model container [2020-12-01 15:28:37,803 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:28:37" (1/1) ... [2020-12-01 15:28:37,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:28:37,834 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:28:38,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:38,169 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:28:38,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:28:38,225 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:28:38,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38 WrapperNode [2020-12-01 15:28:38,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:28:38,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:38,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:28:38,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:28:38,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:28:38,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:28:38,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:28:38,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:28:38,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,293 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,293 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,298 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... [2020-12-01 15:28:38,306 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:28:38,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:28:38,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:28:38,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:28:38,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/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 [2020-12-01 15:28:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:28:38,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:28:38,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:28:38,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:28:38,649 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:28:38,649 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-12-01 15:28:38,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:38 BoogieIcfgContainer [2020-12-01 15:28:38,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:28:38,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:28:38,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:28:38,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:28:38,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:28:37" (1/3) ... [2020-12-01 15:28:38,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a81b6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:38, skipping insertion in model container [2020-12-01 15:28:38,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:28:38" (2/3) ... [2020-12-01 15:28:38,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a81b6c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:28:38, skipping insertion in model container [2020-12-01 15:28:38,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:38" (3/3) ... [2020-12-01 15:28:38,662 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-12-01 15:28:38,679 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:28:38,682 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:28:38,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:28:38,753 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:28:38,769 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:28:38,769 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:28:38,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:28:38,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:28:38,770 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:28:38,770 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:28:38,770 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:28:38,817 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-01 15:28:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:28:38,823 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:38,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:38,832 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:38,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:38,840 INFO L82 PathProgramCache]: Analyzing trace with hash 827801651, now seen corresponding path program 1 times [2020-12-01 15:28:38,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:38,851 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353639633] [2020-12-01 15:28:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:39,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:39,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353639633] [2020-12-01 15:28:39,239 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:28:39,239 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-01 15:28:39,240 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458227731] [2020-12-01 15:28:39,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-01 15:28:39,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:39,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-01 15:28:39,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-01 15:28:39,282 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-12-01 15:28:39,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:39,606 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-12-01 15:28:39,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-01 15:28:39,611 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-12-01 15:28:39,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:39,634 INFO L225 Difference]: With dead ends: 41 [2020-12-01 15:28:39,635 INFO L226 Difference]: Without dead ends: 12 [2020-12-01 15:28:39,638 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:28:39,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-12-01 15:28:39,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-12-01 15:28:39,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-12-01 15:28:39,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-12-01 15:28:39,685 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-12-01 15:28:39,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:39,685 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-12-01 15:28:39,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-01 15:28:39,685 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-12-01 15:28:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:28:39,686 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:39,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:39,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:28:39,687 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:39,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1435186616, now seen corresponding path program 1 times [2020-12-01 15:28:39,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:39,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556549298] [2020-12-01 15:28:39,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:39,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:39,834 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556549298] [2020-12-01 15:28:39,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1834526245] [2020-12-01 15:28:39,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/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 [2020-12-01 15:28:39,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:39,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 23 conjunts are in the unsatisfiable core [2020-12-01 15:28:39,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:28:40,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:28:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:40,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:28:40,047 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-12-01 15:28:40,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106734978] [2020-12-01 15:28:40,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-01 15:28:40,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:40,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-01 15:28:40,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:28:40,051 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2020-12-01 15:28:40,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:40,281 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-12-01 15:28:40,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-01 15:28:40,282 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-12-01 15:28:40,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:40,282 INFO L225 Difference]: With dead ends: 22 [2020-12-01 15:28:40,283 INFO L226 Difference]: Without dead ends: 14 [2020-12-01 15:28:40,284 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-12-01 15:28:40,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-01 15:28:40,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-01 15:28:40,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-01 15:28:40,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-12-01 15:28:40,289 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-12-01 15:28:40,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:40,289 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-12-01 15:28:40,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-01 15:28:40,289 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-12-01 15:28:40,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 15:28:40,290 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:28:40,290 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:28:40,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-01 15:28:40,518 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:28:40,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:28:40,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1629316840, now seen corresponding path program 2 times [2020-12-01 15:28:40,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:28:40,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655950804] [2020-12-01 15:28:40,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:28:40,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:28:40,727 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 15:28:40,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655950804] [2020-12-01 15:28:40,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247248483] [2020-12-01 15:28:40,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/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 [2020-12-01 15:28:40,784 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-12-01 15:28:40,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-12-01 15:28:40,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 35 conjunts are in the unsatisfiable core [2020-12-01 15:28:40,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:28:40,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-01 15:28:40,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:28:40,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-01 15:28:40,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-12-01 15:28:40,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736849988] [2020-12-01 15:28:40,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-01 15:28:40,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:28:40,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-01 15:28:40,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-12-01 15:28:40,975 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 12 states. [2020-12-01 15:28:41,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:28:41,213 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-12-01 15:28:41,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-01 15:28:41,213 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-12-01 15:28:41,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:28:41,214 INFO L225 Difference]: With dead ends: 17 [2020-12-01 15:28:41,214 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:28:41,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-12-01 15:28:41,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:28:41,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:28:41,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:28:41,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:28:41,216 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 15:28:41,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:28:41,217 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:28:41,217 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-01 15:28:41,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:28:41,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:28:41,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-01 15:28:41,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:28:41,506 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:28:41,506 INFO L258 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0)) (.cse0 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-12-01 15:28:41,506 INFO L262 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2020-12-01 15:28:41,507 INFO L262 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-12-01 15:28:41,507 INFO L262 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-12-01 15:28:41,507 INFO L265 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2020-12-01 15:28:41,507 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:28:41,507 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:28:41,508 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:28:41,508 INFO L262 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-12-01 15:28:41,508 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-12-01 15:28:41,508 INFO L262 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-12-01 15:28:41,509 INFO L262 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-12-01 15:28:41,509 INFO L262 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-12-01 15:28:41,509 INFO L262 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-12-01 15:28:41,509 INFO L265 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2020-12-01 15:28:41,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:28:41 BoogieIcfgContainer [2020-12-01 15:28:41,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:28:41,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:28:41,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:28:41,528 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:28:41,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:28:38" (3/4) ... [2020-12-01 15:28:41,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:28:41,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-01 15:28:41,543 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 15:28:41,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:28:41,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:28:41,591 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_de4c3f74-170d-4859-9282-5dd86e282367/bin/uautomizer/witness.graphml [2020-12-01 15:28:41,591 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:28:41,593 INFO L168 Benchmark]: Toolchain (without parser) took 3799.48 ms. Allocated memory was 71.3 MB in the beginning and 104.9 MB in the end (delta: 33.6 MB). Free memory was 38.8 MB in the beginning and 43.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 31.4 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,594 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 22.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:41,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.41 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.7 MB in the beginning and 62.8 MB in the end (delta: -24.1 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,596 INFO L168 Benchmark]: Boogie Preprocessor took 25.16 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 60.3 MB in the end (delta: 895.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:28:41,597 INFO L168 Benchmark]: RCFGBuilder took 344.81 ms. Allocated memory is still 86.0 MB. Free memory was 60.3 MB in the beginning and 48.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,598 INFO L168 Benchmark]: TraceAbstraction took 2873.22 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 45.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,599 INFO L168 Benchmark]: Witness Printer took 64.33 ms. Allocated memory is still 104.9 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:28:41,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 71.3 MB. Free memory was 51.4 MB in the beginning and 51.4 MB in the end (delta: 22.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 433.41 ms. Allocated memory was 71.3 MB in the beginning and 86.0 MB in the end (delta: 14.7 MB). Free memory was 38.7 MB in the beginning and 62.8 MB in the end (delta: -24.1 MB). Peak memory consumption was 3.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.81 ms. Allocated memory is still 86.0 MB. Free memory was 62.8 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.16 ms. Allocated memory is still 86.0 MB. Free memory was 61.2 MB in the beginning and 60.3 MB in the end (delta: 895.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 344.81 ms. Allocated memory is still 86.0 MB. Free memory was 60.3 MB in the beginning and 48.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2873.22 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.4 MB in the beginning and 45.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 23.6 MB. Max. memory is 16.1 GB. * Witness Printer took 64.33 ms. Allocated memory is still 104.9 MB. Free memory was 45.3 MB in the beginning and 43.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 33]: Loop Invariant Derived loop invariant: z + y + i <= x + j && x + j <= z + y + i - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 35 SDslu, 74 SDs, 0 SdLazy, 121 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 20 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 4524 SizeOfPredicates, 12 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 58 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...