./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c -s /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4c761fb15c9d367876fc9f1553874e9680fa1668 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 16:54:15,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:54:15,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:54:15,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:54:15,730 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:54:15,735 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:54:15,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:54:15,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:54:15,757 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:54:15,758 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:54:15,759 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:54:15,761 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:54:15,761 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:54:15,765 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:54:15,767 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:54:15,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:54:15,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:54:15,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:54:15,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:54:15,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:54:15,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:54:15,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:54:15,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:54:15,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:54:15,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:54:15,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:54:15,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:54:15,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:54:15,788 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:54:15,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:54:15,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:54:15,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:54:15,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:54:15,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:54:15,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:54:15,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:54:15,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:54:15,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:54:15,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:54:15,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:54:15,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:54:15,799 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/config/svcomp-Overflow-64bit-Kojak_Default.epf [2020-12-01 16:54:15,846 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:54:15,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:54:15,848 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-01 16:54:15,849 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2020-12-01 16:54:15,850 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:54:15,850 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:54:15,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:54:15,851 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:54:15,851 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:54:15,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:54:15,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 16:54:15,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:54:15,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 16:54:15,853 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-01 16:54:15,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 16:54:15,854 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:54:15,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 16:54:15,854 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:54:15,854 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:54:15,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:54:15,855 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:54:15,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:54:15,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:54:15,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:54:15,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 16:54:15,856 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:54:15,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:54:15,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 16:54:15,857 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_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4c761fb15c9d367876fc9f1553874e9680fa1668 [2020-12-01 16:54:16,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:54:16,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:54:16,211 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:54:16,213 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:54:16,217 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:54:16,218 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2020-12-01 16:54:16,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/data/2d6cf69e6/94295e983bc14ff5bab3e88b9d32b2a5/FLAGf6ab1ec20 [2020-12-01 16:54:16,809 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:54:16,813 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wise.c [2020-12-01 16:54:16,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/data/2d6cf69e6/94295e983bc14ff5bab3e88b9d32b2a5/FLAGf6ab1ec20 [2020-12-01 16:54:17,203 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/data/2d6cf69e6/94295e983bc14ff5bab3e88b9d32b2a5 [2020-12-01 16:54:17,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:54:17,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:54:17,213 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:54:17,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:54:17,216 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:54:17,217 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45f94392 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17, skipping insertion in model container [2020-12-01 16:54:17,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:54:17,248 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:54:17,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:54:17,474 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:54:17,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:54:17,531 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:54:17,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17 WrapperNode [2020-12-01 16:54:17,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:54:17,535 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:54:17,535 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:54:17,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:54:17,544 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:54:17,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:54:17,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:54:17,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:54:17,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,593 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:54:17,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:54:17,613 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:54:17,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:54:17,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:54:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/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 [2020-12-01 16:54:17,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:54:17,696 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:54:17,963 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:54:17,963 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-01 16:54:17,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:17 BoogieIcfgContainer [2020-12-01 16:54:17,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:54:17,966 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:54:17,966 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:54:17,975 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:54:17,976 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:17" (1/1) ... [2020-12-01 16:54:17,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:54:18,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2020-12-01 16:54:18,017 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-12-01 16:54:18,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:54:18,019 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:18,154 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 16:54:18,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2020-12-01 16:54:18,209 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-12-01 16:54:18,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:54:18,209 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:18,253 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 16:54:18,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 26 states and 32 transitions. [2020-12-01 16:54:18,541 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2020-12-01 16:54:18,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:54:18,542 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:18,585 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 16:54:18,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 28 states and 34 transitions. [2020-12-01 16:54:18,625 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-12-01 16:54:18,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:54:18,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:18,686 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 16:54:18,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:18,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 27 states and 33 transitions. [2020-12-01 16:54:18,724 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2020-12-01 16:54:18,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:54:18,725 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:18,799 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 16:54:19,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 33 states and 46 transitions. [2020-12-01 16:54:19,131 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-12-01 16:54:19,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:54:19,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:19,228 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 16:54:19,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:19,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 35 states and 50 transitions. [2020-12-01 16:54:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 50 transitions. [2020-12-01 16:54:19,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:54:19,690 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:19,758 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 16:54:20,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:20,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 42 states and 65 transitions. [2020-12-01 16:54:20,543 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 65 transitions. [2020-12-01 16:54:20,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:54:20,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:20,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:20,704 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 16:54:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:22,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 48 states and 75 transitions. [2020-12-01 16:54:22,205 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 75 transitions. [2020-12-01 16:54:22,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:54:22,206 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:22,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:22,365 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 16:54:22,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:22,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2020-12-01 16:54:22,844 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2020-12-01 16:54:22,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:54:22,845 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:22,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:22,886 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 16:54:23,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:23,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 52 states and 83 transitions. [2020-12-01 16:54:23,278 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 83 transitions. [2020-12-01 16:54:23,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:54:23,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:23,347 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:23,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:23,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 53 states and 85 transitions. [2020-12-01 16:54:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 85 transitions. [2020-12-01 16:54:23,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:54:23,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:23,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:23,945 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 16:54:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 62 states and 108 transitions. [2020-12-01 16:54:25,585 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 108 transitions. [2020-12-01 16:54:25,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:54:25,586 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:25,604 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 16:54:25,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 64 states and 110 transitions. [2020-12-01 16:54:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 110 transitions. [2020-12-01 16:54:25,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:54:25,871 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:25,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:25,884 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 16:54:26,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:26,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 66 states and 115 transitions. [2020-12-01 16:54:26,335 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 115 transitions. [2020-12-01 16:54:26,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:54:26,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:26,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:26,365 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 16:54:26,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:26,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 68 states and 117 transitions. [2020-12-01 16:54:26,816 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 117 transitions. [2020-12-01 16:54:26,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:54:26,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:27,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 70 states and 121 transitions. [2020-12-01 16:54:27,479 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 121 transitions. [2020-12-01 16:54:27,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:54:27,485 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:27,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:28,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:28,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 72 states and 127 transitions. [2020-12-01 16:54:28,218 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 127 transitions. [2020-12-01 16:54:28,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:54:28,226 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:28,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:28,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:28,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:28,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 71 states and 124 transitions. [2020-12-01 16:54:28,980 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 124 transitions. [2020-12-01 16:54:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:54:28,980 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:28,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:30,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:30,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 75 states and 132 transitions. [2020-12-01 16:54:30,216 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 132 transitions. [2020-12-01 16:54:30,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:54:30,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:30,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:30,307 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 16:54:31,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:31,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 82 states and 147 transitions. [2020-12-01 16:54:31,743 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 147 transitions. [2020-12-01 16:54:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:54:31,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:31,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:54:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 82 states and 145 transitions. [2020-12-01 16:54:32,120 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 145 transitions. [2020-12-01 16:54:32,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:54:32,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:32,132 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:54:32,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:32,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 82 states and 142 transitions. [2020-12-01 16:54:32,426 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 142 transitions. [2020-12-01 16:54:32,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:54:32,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:32,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:32,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:32,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:32,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 84 states and 145 transitions. [2020-12-01 16:54:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 145 transitions. [2020-12-01 16:54:32,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:54:32,922 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:33,028 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:34,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:34,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 90 states and 153 transitions. [2020-12-01 16:54:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 153 transitions. [2020-12-01 16:54:34,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:54:34,278 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:34,290 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:54:34,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:34,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 90 states and 152 transitions. [2020-12-01 16:54:34,759 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 152 transitions. [2020-12-01 16:54:34,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:54:34,759 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:34,864 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:35,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:35,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 91 states and 155 transitions. [2020-12-01 16:54:35,497 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 155 transitions. [2020-12-01 16:54:35,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:54:35,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:35,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:37,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:37,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 100 states and 171 transitions. [2020-12-01 16:54:37,291 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 171 transitions. [2020-12-01 16:54:37,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:54:37,292 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:37,392 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 100 states and 170 transitions. [2020-12-01 16:54:37,790 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 170 transitions. [2020-12-01 16:54:37,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:54:37,791 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:38,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:38,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 102 states and 176 transitions. [2020-12-01 16:54:38,671 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 176 transitions. [2020-12-01 16:54:38,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:54:38,672 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:38,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:38,783 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:39,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:39,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 107 states and 183 transitions. [2020-12-01 16:54:39,736 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 183 transitions. [2020-12-01 16:54:39,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:54:39,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:39,757 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:40,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:40,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 110 states and 186 transitions. [2020-12-01 16:54:40,678 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 186 transitions. [2020-12-01 16:54:40,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:54:40,679 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:40,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:40,694 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-01 16:54:41,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 115 states and 192 transitions. [2020-12-01 16:54:41,484 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 192 transitions. [2020-12-01 16:54:41,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 16:54:41,484 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:41,505 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 16:54:41,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:41,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 116 states and 192 transitions. [2020-12-01 16:54:41,828 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 192 transitions. [2020-12-01 16:54:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 16:54:41,829 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:41,845 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:54:42,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 117 states and 192 transitions. [2020-12-01 16:54:42,057 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 192 transitions. [2020-12-01 16:54:42,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:54:42,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:42,079 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-12-01 16:54:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-12-01 16:54:43,052 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-12-01 16:54:43,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 16:54:43,052 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 36 iterations. [2020-12-01 16:54:43,058 INFO L765 CodeCheckObserver]: All specifications hold 8 specifications checked. All of them hold [2020-12-01 16:54:43,241 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 16:54:43,244 INFO L569 CodeCheckObserver]: Invariant with dag size 9 [2020-12-01 16:54:43,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:54:43 ImpRootNode [2020-12-01 16:54:43,249 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:54:43,250 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:54:43,250 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:54:43,250 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:54:43,250 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:54:17" (3/4) ... [2020-12-01 16:54:43,253 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 16:54:43,261 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-01 16:54:43,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-01 16:54:43,262 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 16:54:43,366 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_89db7e91-ce61-483c-aeb2-6ef23a1a2cf6/bin/ukojak/witness.graphml [2020-12-01 16:54:43,367 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:54:43,368 INFO L168 Benchmark]: Toolchain (without parser) took 26158.74 ms. Allocated memory was 102.8 MB in the beginning and 385.9 MB in the end (delta: 283.1 MB). Free memory was 73.8 MB in the beginning and 301.3 MB in the end (delta: -227.5 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:43,369 INFO L168 Benchmark]: CDTParser took 0.56 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:43,370 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.74 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 82.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:43,370 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 102.8 MB. Free memory was 82.0 MB in the beginning and 80.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:43,371 INFO L168 Benchmark]: Boogie Preprocessor took 37.68 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.9 MB in the end (delta: 996.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:54:43,371 INFO L168 Benchmark]: RCFGBuilder took 352.52 ms. Allocated memory is still 102.8 MB. Free memory was 79.9 MB in the beginning and 68.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:43,372 INFO L168 Benchmark]: CodeCheck took 25282.99 ms. Allocated memory was 102.8 MB in the beginning and 385.9 MB in the end (delta: 283.1 MB). Free memory was 68.4 MB in the beginning and 305.5 MB in the end (delta: -237.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:43,373 INFO L168 Benchmark]: Witness Printer took 117.21 ms. Allocated memory is still 385.9 MB. Free memory was 305.5 MB in the beginning and 301.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:54:43,376 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 1 procedures, 23 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.0s, OverallIterations: 36, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1163919392 SDtfs, 186246372 SDslu, 1310720064 SDs, 0 SdLazy, 1337950212 SolverSat, 1261393288 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 19.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4890 GetRequests, 4313 SyntacticMatches, 217 SemanticMatches, 360 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66545 ImplicationChecksByTransitivity, 22.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 498 NumberOfCodeBlocks, 498 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 463 ConstructedInterpolants, 0 QuantifiedInterpolants, 23935 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 35 InterpolantComputations, 29 PerfectInterpolantSequences, 152/192 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: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= y) && 0 <= x) && y <= 2147483647 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.56 ms. Allocated memory is still 83.9 MB. Free memory was 41.6 MB in the beginning and 41.6 MB in the end (delta: 37.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 320.74 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 82.0 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.21 ms. Allocated memory is still 102.8 MB. Free memory was 82.0 MB in the beginning and 80.9 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.68 ms. Allocated memory is still 102.8 MB. Free memory was 80.9 MB in the beginning and 79.9 MB in the end (delta: 996.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 352.52 ms. Allocated memory is still 102.8 MB. Free memory was 79.9 MB in the beginning and 68.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 25282.99 ms. Allocated memory was 102.8 MB in the beginning and 385.9 MB in the end (delta: 283.1 MB). Free memory was 68.4 MB in the beginning and 305.5 MB in the end (delta: -237.1 MB). Peak memory consumption was 47.1 MB. Max. memory is 16.1 GB. * Witness Printer took 117.21 ms. Allocated memory is still 385.9 MB. Free memory was 305.5 MB in the beginning and 301.3 MB in the end (delta: 4.2 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...