./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/while_infinite_loop_2.c --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_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/loops/while_infinite_loop_2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 673762d41977d1832da2fc16ea042415bb97af40 ............................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:42:18,529 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:42:18,567 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:42:18,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:42:18,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:42:18,654 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:42:18,658 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:42:18,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:42:18,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:42:18,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:42:18,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:42:18,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:42:18,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:42:18,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:42:18,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:42:18,689 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:42:18,690 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:42:18,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:42:18,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:42:18,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:42:18,716 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:42:18,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:42:18,720 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:42:18,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:42:18,726 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:42:18,726 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:42:18,727 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:42:18,728 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:42:18,729 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:42:18,730 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:42:18,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:42:18,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:42:18,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:42:18,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:42:18,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:42:18,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:42:18,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:42:18,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:42:18,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:42:18,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:42:18,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:42:18,741 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2020-11-30 00:42:18,770 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:42:18,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:42:18,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 00:42:18,772 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-11-30 00:42:18,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:42:18,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:42:18,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:42:18,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:42:18,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:42:18,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:42:18,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:42:18,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:42:18,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:42:18,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:42:18,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:42:18,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:42:18,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:42:18,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:42:18,777 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 00:42:18,777 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 00:42:18,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:42:18,778 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:42:18,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 00:42:18,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:42:18,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:42:18,779 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:42:18,779 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 00:42:18,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:42:18,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:42:18,780 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_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 673762d41977d1832da2fc16ea042415bb97af40 [2020-11-30 00:42:19,074 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:42:19,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:42:19,111 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:42:19,112 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:42:19,113 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:42:19,115 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/../../sv-benchmarks/c/loops/while_infinite_loop_2.c [2020-11-30 00:42:19,216 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/data/156aebed1/67a6c9d2ce704e25a5d3c7e8ccfe41e2/FLAG0359f1b6e [2020-11-30 00:42:19,761 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:42:19,761 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/sv-benchmarks/c/loops/while_infinite_loop_2.c [2020-11-30 00:42:19,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/data/156aebed1/67a6c9d2ce704e25a5d3c7e8ccfe41e2/FLAG0359f1b6e [2020-11-30 00:42:20,102 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/data/156aebed1/67a6c9d2ce704e25a5d3c7e8ccfe41e2 [2020-11-30 00:42:20,105 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:42:20,107 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:42:20,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:42:20,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:42:20,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:42:20,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109b8033 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20, skipping insertion in model container [2020-11-30 00:42:20,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:42:20,163 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:42:20,336 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:42:20,355 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:42:20,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:42:20,446 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:42:20,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20 WrapperNode [2020-11-30 00:42:20,449 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:42:20,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:42:20,451 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:42:20,451 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:42:20,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,474 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:42:20,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:42:20,501 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:42:20,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:42:20,517 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,523 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... [2020-11-30 00:42:20,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:42:20,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:42:20,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:42:20,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:42:20,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:42:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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:10000 [2020-11-30 00:42:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:42:20,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:42:20,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:42:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-11-30 00:42:20,638 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-11-30 00:42:20,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:42:21,152 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:42:21,153 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 00:42:21,155 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:21 BoogieIcfgContainer [2020-11-30 00:42:21,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:42:21,156 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 00:42:21,157 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 00:42:21,168 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 00:42:21,168 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:21" (1/1) ... [2020-11-30 00:42:21,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:42:21,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:42:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2020-11-30 00:42:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2020-11-30 00:42:21,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:42:21,228 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:42:21,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:21,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:21,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:42:21,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 9 transitions. [2020-11-30 00:42:21,374 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-11-30 00:42:21,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 00:42:21,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 00:42:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:42:21,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:42:21,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 00:42:21,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 7 states and 7 transitions. [2020-11-30 00:42:21,744 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2020-11-30 00:42:21,744 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:42:21,744 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2020-11-30 00:42:21,755 INFO L765 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2020-11-30 00:42:21,777 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-11-30 00:42:21,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 12:42:21 ImpRootNode [2020-11-30 00:42:21,782 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 00:42:21,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:42:21,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:42:21,783 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:42:21,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:42:21" (3/4) ... [2020-11-30 00:42:21,788 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:42:21,794 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2020-11-30 00:42:21,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 00:42:21,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 00:42:21,799 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:42:21,800 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:42:21,849 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_495097c3-f575-48ab-a6ab-f4f73383637d/bin/ukojak/witness.graphml [2020-11-30 00:42:21,853 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:42:21,856 INFO L168 Benchmark]: Toolchain (without parser) took 1746.92 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 44.1 MB in the beginning and 61.1 MB in the end (delta: -17.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:21,859 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:21,861 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.76 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 43.9 MB in the beginning and 72.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:21,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.27 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:21,863 INFO L168 Benchmark]: Boogie Preprocessor took 30.24 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 70.3 MB in the end (delta: 966.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:21,864 INFO L168 Benchmark]: RCFGBuilder took 624.10 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 58.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:21,865 INFO L168 Benchmark]: CodeCheck took 625.52 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 63.2 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:42:21,866 INFO L168 Benchmark]: Witness Printer took 70.43 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 61.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:42:21,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 SDtfs, 4 SDslu, 8 SDs, 0 SdLazy, 26 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 82 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 3]: 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: 14]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory was 50.2 MB in the beginning and 50.2 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 329.76 ms. Allocated memory was 77.6 MB in the beginning and 94.4 MB in the end (delta: 16.8 MB). Free memory was 43.9 MB in the beginning and 72.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.27 ms. Allocated memory is still 94.4 MB. Free memory was 72.5 MB in the beginning and 71.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.24 ms. Allocated memory is still 94.4 MB. Free memory was 71.3 MB in the beginning and 70.3 MB in the end (delta: 966.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 624.10 ms. Allocated memory is still 94.4 MB. Free memory was 70.0 MB in the beginning and 58.1 MB in the end (delta: 11.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * CodeCheck took 625.52 ms. Allocated memory is still 94.4 MB. Free memory was 58.1 MB in the beginning and 63.2 MB in the end (delta: -5.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 70.43 ms. Allocated memory is still 94.4 MB. Free memory was 63.2 MB in the beginning and 61.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...