./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006_variant.i -s /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/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-a4ecdab [2020-11-28 02:56:20,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 02:56:20,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 02:56:20,479 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 02:56:20,480 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 02:56:20,485 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 02:56:20,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 02:56:20,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 02:56:20,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 02:56:20,507 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 02:56:20,508 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 02:56:20,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 02:56:20,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 02:56:20,514 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 02:56:20,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 02:56:20,518 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 02:56:20,519 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 02:56:20,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 02:56:20,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 02:56:20,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 02:56:20,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 02:56:20,537 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 02:56:20,539 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 02:56:20,540 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 02:56:20,549 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 02:56:20,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 02:56:20,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 02:56:20,552 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 02:56:20,553 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 02:56:20,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 02:56:20,554 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 02:56:20,556 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 02:56:20,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 02:56:20,559 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 02:56:20,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 02:56:20,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 02:56:20,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 02:56:20,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 02:56:20,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 02:56:20,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 02:56:20,566 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 02:56:20,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 02:56:20,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 02:56:20,607 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 02:56:20,609 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 02:56:20,609 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 02:56:20,610 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 02:56:20,610 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 02:56:20,610 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 02:56:20,610 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 02:56:20,611 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 02:56:20,611 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 02:56:20,612 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 02:56:20,612 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 02:56:20,612 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 02:56:20,612 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 02:56:20,613 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 02:56:20,613 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 02:56:20,613 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 02:56:20,613 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 02:56:20,614 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 02:56:20,614 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 02:56:20,614 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 02:56:20,614 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 02:56:20,615 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 02:56:20,615 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 02:56:20,615 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 02:56:20,615 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 02:56:20,615 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 02:56:20,616 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 02:56:20,616 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 02:56:20,616 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_084679c9-9ca0-412c-ac78-2bfc745bde41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9ecf0997a3226968b15d351ec48dae1cc4b70e9 [2020-11-28 02:56:20,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 02:56:20,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 02:56:20,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 02:56:20,992 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 02:56:20,994 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 02:56:20,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/../../sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-11-28 02:56:21,095 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/data/b74669735/83360dcba1b74fce9fa1825bf7ac9443/FLAGec490ea62 [2020-11-28 02:56:21,665 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 02:56:21,665 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/sv-benchmarks/c/loop-lit/jm2006_variant.i [2020-11-28 02:56:21,679 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/data/b74669735/83360dcba1b74fce9fa1825bf7ac9443/FLAGec490ea62 [2020-11-28 02:56:21,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/data/b74669735/83360dcba1b74fce9fa1825bf7ac9443 [2020-11-28 02:56:21,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 02:56:21,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 02:56:22,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 02:56:22,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 02:56:22,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:22,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c09bf69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:56:21" (1/1) ... [2020-11-28 02:56:22,014 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 02:56:22,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 02:56:22,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,219 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 02:56:22,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 02:56:22,251 INFO L208 MainTranslator]: Completed translation [2020-11-28 02:56:22,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22 WrapperNode [2020-11-28 02:56:22,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 02:56:22,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 02:56:22,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 02:56:22,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 02:56:22,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 02:56:22,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 02:56:22,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... [2020-11-28 02:56:22,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 02:56:22,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 02:56:22,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 02:56:22,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 02:56:22,311 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/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 [2020-11-28 02:56:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 02:56:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 02:56:22,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 02:56:22,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 02:56:22,726 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 02:56:22,727 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 02:56:22,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22 BoogieIcfgContainer [2020-11-28 02:56:22,729 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 02:56:22,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 02:56:22,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 02:56:22,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 02:56:22,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:56:21" (1/3) ... [2020-11-28 02:56:22,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8115c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:56:22" (2/3) ... [2020-11-28 02:56:22,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e8115c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:56:22, skipping insertion in model container [2020-11-28 02:56:22,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/3) ... [2020-11-28 02:56:22,756 INFO L111 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-11-28 02:56:22,767 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 02:56:22,785 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 02:56:22,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 02:56:22,822 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 02:56:22,822 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 02:56:22,822 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 02:56:22,822 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 02:56:22,822 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 02:56:22,822 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 02:56:22,822 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 02:56:22,823 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 02:56:22,836 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 02:56:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 02:56:22,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:22,841 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:22,842 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:22,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:22,848 INFO L82 PathProgramCache]: Analyzing trace with hash 827801651, now seen corresponding path program 1 times [2020-11-28 02:56:22,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:22,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75201632] [2020-11-28 02:56:22,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:23,195 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75201632] [2020-11-28 02:56:23,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 02:56:23,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 02:56:23,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186019576] [2020-11-28 02:56:23,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 02:56:23,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:23,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 02:56:23,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 02:56:23,227 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2020-11-28 02:56:23,413 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-11-28 02:56:23,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:23,542 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2020-11-28 02:56:23,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 02:56:23,545 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-11-28 02:56:23,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:23,563 INFO L225 Difference]: With dead ends: 41 [2020-11-28 02:56:23,573 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 02:56:23,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 02:56:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 02:56:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2020-11-28 02:56:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-28 02:56:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-11-28 02:56:23,617 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2020-11-28 02:56:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:23,618 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-11-28 02:56:23,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 02:56:23,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-11-28 02:56:23,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 02:56:23,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:23,620 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:23,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 02:56:23,621 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:23,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:23,625 INFO L82 PathProgramCache]: Analyzing trace with hash 1435186616, now seen corresponding path program 1 times [2020-11-28 02:56:23,625 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:23,626 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755980561] [2020-11-28 02:56:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,840 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:23,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755980561] [2020-11-28 02:56:23,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900204096] [2020-11-28 02:56:23,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/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 [2020-11-28 02:56:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:23,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjunts are in the unsatisfiable core [2020-11-28 02:56:23,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:24,020 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:24,029 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:24,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:24,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:56:24,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2020-11-28 02:56:24,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776235075] [2020-11-28 02:56:24,058 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-28 02:56:24,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:24,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-28 02:56:24,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-28 02:56:24,077 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 9 states. [2020-11-28 02:56:24,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:24,314 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-11-28 02:56:24,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-28 02:56:24,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-11-28 02:56:24,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:24,316 INFO L225 Difference]: With dead ends: 22 [2020-11-28 02:56:24,316 INFO L226 Difference]: Without dead ends: 14 [2020-11-28 02:56:24,317 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-28 02:56:24,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-28 02:56:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-28 02:56:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-28 02:56:24,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-11-28 02:56:24,321 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-11-28 02:56:24,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:24,321 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-11-28 02:56:24,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-28 02:56:24,322 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-11-28 02:56:24,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 02:56:24,322 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 02:56:24,322 INFO L422 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 02:56:24,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-28 02:56:24,523 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 02:56:24,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 02:56:24,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1629316840, now seen corresponding path program 2 times [2020-11-28 02:56:24,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 02:56:24,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620345942] [2020-11-28 02:56:24,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 02:56:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 02:56:24,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 02:56:24,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620345942] [2020-11-28 02:56:24,701 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852875524] [2020-11-28 02:56:24,701 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/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 [2020-11-28 02:56:24,742 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-11-28 02:56:24,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-11-28 02:56:24,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2020-11-28 02:56:24,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 02:56:24,872 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-28 02:56:24,875 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-28 02:56:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 02:56:24,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-28 02:56:24,905 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2020-11-28 02:56:24,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211923056] [2020-11-28 02:56:24,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-28 02:56:24,906 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 02:56:24,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-28 02:56:24,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-11-28 02:56:24,907 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 12 states. [2020-11-28 02:56:25,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 02:56:25,140 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-11-28 02:56:25,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-28 02:56:25,141 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 13 [2020-11-28 02:56:25,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 02:56:25,141 INFO L225 Difference]: With dead ends: 17 [2020-11-28 02:56:25,141 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 02:56:25,142 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 [2020-11-28 02:56:25,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 02:56:25,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 02:56:25,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 02:56:25,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 02:56:25,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-28 02:56:25,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 02:56:25,143 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 02:56:25,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-28 02:56:25,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 02:56:25,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 02:56:25,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 02:56:25,355 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 02:56:25,445 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 02:56:25,445 INFO L270 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))) [2020-11-28 02:56:25,445 INFO L274 CegarLoopResult]: For program point L33-3(lines 24 42) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L277 CegarLoopResult]: At program point L38(lines 38 40) the Hoare annotation is: true [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-11-28 02:56:25,446 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-11-28 02:56:25,447 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-28 02:56:25,447 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-28 02:56:25,447 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-28 02:56:25,447 INFO L274 CegarLoopResult]: For program point L12-3(line 12) no Hoare annotation was computed. [2020-11-28 02:56:25,447 INFO L277 CegarLoopResult]: At program point L41(lines 24 42) the Hoare annotation is: true [2020-11-28 02:56:25,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:56:25 BoogieIcfgContainer [2020-11-28 02:56:25,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 02:56:25,464 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 02:56:25,464 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 02:56:25,464 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 02:56:25,465 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:56:22" (3/4) ... [2020-11-28 02:56:25,472 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 02:56:25,483 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 02:56:25,483 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 02:56:25,484 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:25,484 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 02:56:25,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_084679c9-9ca0-412c-ac78-2bfc745bde41/bin/uautomizer/witness.graphml [2020-11-28 02:56:25,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 02:56:25,539 INFO L168 Benchmark]: Toolchain (without parser) took 3539.59 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 70.0 MB in the beginning and 65.8 MB in the end (delta: 4.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,540 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:25,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.46 ms. Allocated memory is still 102.8 MB. Free memory was 69.9 MB in the beginning and 79.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,544 INFO L168 Benchmark]: Boogie Preprocessor took 21.18 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 02:56:25,545 INFO L168 Benchmark]: RCFGBuilder took 419.18 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 65.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,546 INFO L168 Benchmark]: TraceAbstraction took 2721.52 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 64.5 MB in the beginning and 68.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,546 INFO L168 Benchmark]: Witness Printer took 74.53 ms. Allocated memory is still 123.7 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 02:56:25,552 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 75.5 MB. Free memory was 35.4 MB in the beginning and 35.3 MB in the end (delta: 32.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.46 ms. Allocated memory is still 102.8 MB. Free memory was 69.9 MB in the beginning and 79.1 MB in the end (delta: -9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.90 ms. Allocated memory is still 102.8 MB. Free memory was 79.1 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.18 ms. Allocated memory is still 102.8 MB. Free memory was 77.6 MB in the beginning and 76.5 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 419.18 ms. Allocated memory is still 102.8 MB. Free memory was 76.5 MB in the beginning and 65.0 MB in the end (delta: 11.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2721.52 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 64.5 MB in the beginning and 68.9 MB in the end (delta: -4.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.53 ms. Allocated memory is still 123.7 MB. Free memory was 67.9 MB in the beginning and 65.8 MB in the end (delta: 2.1 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: 2.5s, 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, 51 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.0s 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, 13 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 117 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, 4392 SizeOfPredicates, 14 NumberOfNonLiveVariables, 138 ConjunctsInSsa, 50 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...