./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 ....................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:27:50,603 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:27:50,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:27:50,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:27:50,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:27:50,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:27:50,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:27:50,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:27:50,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:27:50,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:27:50,708 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:27:50,709 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:27:50,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:27:50,711 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:27:50,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:27:50,714 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:27:50,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:27:50,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:27:50,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:27:50,722 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:27:50,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:27:50,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:27:50,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:27:50,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:27:50,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:27:50,732 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:27:50,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:27:50,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:27:50,734 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:27:50,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:27:50,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:27:50,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:27:50,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:27:50,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:27:50,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:27:50,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:27:50,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:27:50,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:27:50,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:27:50,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:27:50,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:27:50,745 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 16:27:50,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:27:50,772 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:27:50,773 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:27:50,773 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:27:50,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:27:50,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:27:50,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:27:50,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:27:50,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:27:50,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:27:50,775 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:27:50,775 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:27:50,776 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 16:27:50,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:27:50,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:27:50,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:27:50,776 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:27:50,777 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:27:50,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:27:50,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:27:50,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:27:50,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:27:50,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:27:50,778 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:27:50,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:27:50,779 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_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22d1ff4f4fd6702e3a4a8affc05625a9c9bb8113 [2020-12-01 16:27:51,052 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:27:51,081 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:27:51,084 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:27:51,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:27:51,090 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:27:51,092 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-01 16:27:51,190 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/data/c4ae18f34/9d22c74e294a4a6c833a74d432b2cd9d/FLAGd3539aadd [2020-12-01 16:27:51,824 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:27:51,825 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2020-12-01 16:27:51,838 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/data/c4ae18f34/9d22c74e294a4a6c833a74d432b2cd9d/FLAGd3539aadd [2020-12-01 16:27:52,187 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/data/c4ae18f34/9d22c74e294a4a6c833a74d432b2cd9d [2020-12-01 16:27:52,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:27:52,193 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:27:52,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:52,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:27:52,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:27:52,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1992c574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52, skipping insertion in model container [2020-12-01 16:27:52,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:27:52,264 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:27:52,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:52,666 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:27:52,745 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:27:52,805 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:27:52,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52 WrapperNode [2020-12-01 16:27:52,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:27:52,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:52,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:27:52,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:27:52,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,868 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:27:52,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:27:52,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:27:52,871 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:27:52,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,924 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... [2020-12-01 16:27:52,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:27:52,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:27:52,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:27:52,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:27:52,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:27:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/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 16:27:53,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:27:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:27:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:27:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:27:53,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:27:53,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:27:53,717 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:27:53,725 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-12-01 16:27:53,728 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:53 BoogieIcfgContainer [2020-12-01 16:27:53,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:27:53,730 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:27:53,730 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:27:53,743 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:27:53,744 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:53" (1/1) ... [2020-12-01 16:27:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:27:53,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:53,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2020-12-01 16:27:53,798 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2020-12-01 16:27:53,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:27:53,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:53,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:54,012 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 16:27:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2020-12-01 16:27:54,060 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2020-12-01 16:27:54,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 16:27:54,063 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:54,203 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 16:27:54,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:54,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 62 states and 73 transitions. [2020-12-01 16:27:54,503 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2020-12-01 16:27:54,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:27:54,503 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:54,572 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 16:27:54,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:54,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 64 states and 77 transitions. [2020-12-01 16:27:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2020-12-01 16:27:54,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:27:54,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:54,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:55,014 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 16:27:55,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:55,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 67 states and 85 transitions. [2020-12-01 16:27:55,789 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-12-01 16:27:55,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:27:55,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:55,898 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 16:27:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 68 states and 89 transitions. [2020-12-01 16:27:55,987 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2020-12-01 16:27:55,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:27:55,988 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:56,120 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 16:27:56,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:56,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 69 states and 92 transitions. [2020-12-01 16:27:56,211 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2020-12-01 16:27:56,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:27:56,213 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:56,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:56,271 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 16:27:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:56,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 72 states and 100 transitions. [2020-12-01 16:27:56,651 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 100 transitions. [2020-12-01 16:27:56,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:27:56,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:56,670 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 16:27:56,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:56,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 72 states and 99 transitions. [2020-12-01 16:27:56,831 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 99 transitions. [2020-12-01 16:27:56,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:27:56,832 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:56,906 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 16:27:57,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:57,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 76 states and 109 transitions. [2020-12-01 16:27:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 109 transitions. [2020-12-01 16:27:57,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:27:57,856 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:27:59,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:59,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 80 states and 119 transitions. [2020-12-01 16:27:59,125 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 119 transitions. [2020-12-01 16:27:59,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:27:59,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:59,142 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 16:27:59,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:27:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 85 states and 128 transitions. [2020-12-01 16:27:59,968 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 128 transitions. [2020-12-01 16:27:59,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:27:59,969 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:27:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:27:59,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:00,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:00,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 86 states and 129 transitions. [2020-12-01 16:28:00,465 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 129 transitions. [2020-12-01 16:28:00,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:28:00,467 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:00,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:00,681 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:02,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:02,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 91 states and 143 transitions. [2020-12-01 16:28:02,446 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 143 transitions. [2020-12-01 16:28:02,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:28:02,447 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:02,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:02,530 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 16:28:04,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:04,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 97 states and 156 transitions. [2020-12-01 16:28:04,053 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 156 transitions. [2020-12-01 16:28:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:28:04,055 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:04,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 99 states and 166 transitions. [2020-12-01 16:28:04,913 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 166 transitions. [2020-12-01 16:28:04,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:28:04,914 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:04,952 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 16:28:05,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 102 states and 174 transitions. [2020-12-01 16:28:05,441 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 174 transitions. [2020-12-01 16:28:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:28:05,442 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:05,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:05,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:28:06,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:06,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 104 states and 180 transitions. [2020-12-01 16:28:06,003 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 180 transitions. [2020-12-01 16:28:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:28:06,004 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:06,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:07,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:07,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 107 states and 185 transitions. [2020-12-01 16:28:07,414 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 185 transitions. [2020-12-01 16:28:07,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:28:07,415 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:07,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:07,597 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 16:28:10,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 114 states and 200 transitions. [2020-12-01 16:28:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 200 transitions. [2020-12-01 16:28:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:28:10,197 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:10,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:11,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 116 states and 202 transitions. [2020-12-01 16:28:11,507 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 202 transitions. [2020-12-01 16:28:11,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:28:11,508 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:11,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:11,523 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:28:12,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:12,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 116 states and 201 transitions. [2020-12-01 16:28:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 201 transitions. [2020-12-01 16:28:12,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:28:12,038 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:12,205 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 16:28:15,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:15,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 124 states and 216 transitions. [2020-12-01 16:28:15,696 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 216 transitions. [2020-12-01 16:28:15,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:28:15,697 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:15,715 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 16:28:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 123 states and 215 transitions. [2020-12-01 16:28:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 215 transitions. [2020-12-01 16:28:15,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:28:15,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:16,021 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:28:17,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:17,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 101 states and 152 transitions. [2020-12-01 16:28:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 152 transitions. [2020-12-01 16:28:17,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:28:17,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:17,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:17,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:28:17,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:17,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 103 states and 155 transitions. [2020-12-01 16:28:17,120 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 155 transitions. [2020-12-01 16:28:17,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:28:17,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:17,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:28:17,243 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 16:28:17,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:28:17,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 103 states and 154 transitions. [2020-12-01 16:28:17,926 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 154 transitions. [2020-12-01 16:28:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:28:17,927 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:28:17,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:28:17,955 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:28:17,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:28:17,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:28:18,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:28:18,073 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:28:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:28:18,092 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:28:18,453 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2020-12-01 16:28:18,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:28:18 ImpRootNode [2020-12-01 16:28:18,502 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:28:18,503 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:28:18,503 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:28:18,503 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:28:18,504 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:27:53" (3/4) ... [2020-12-01 16:28:18,506 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:28:18,577 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0ee4e4c1-b3b3-4a97-8128-81780a4f8b6a/bin/ukojak/witness.graphml [2020-12-01 16:28:18,577 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:28:18,579 INFO L168 Benchmark]: Toolchain (without parser) took 26385.30 ms. Allocated memory was 98.6 MB in the beginning and 371.2 MB in the end (delta: 272.6 MB). Free memory was 63.1 MB in the beginning and 194.2 MB in the end (delta: -131.1 MB). Peak memory consumption was 142.6 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,579 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 69.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:28:18,580 INFO L168 Benchmark]: CACSL2BoogieTranslator took 597.28 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 64.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,580 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.98 ms. Allocated memory is still 98.6 MB. Free memory was 64.1 MB in the beginning and 62.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,581 INFO L168 Benchmark]: Boogie Preprocessor took 62.62 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 60.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,583 INFO L168 Benchmark]: RCFGBuilder took 794.77 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 62.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,583 INFO L168 Benchmark]: CodeCheck took 24772.78 ms. Allocated memory was 98.6 MB in the beginning and 371.2 MB in the end (delta: 272.6 MB). Free memory was 62.8 MB in the beginning and 197.3 MB in the end (delta: -134.5 MB). Peak memory consumption was 138.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,584 INFO L168 Benchmark]: Witness Printer took 74.47 ms. Allocated memory is still 371.2 MB. Free memory was 196.3 MB in the beginning and 194.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:28:18,587 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, 58 locations, 29 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.6s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 161480780 SDtfs, 182473978 SDslu, 67108912 SDs, 0 SdLazy, 1346947330 SolverSat, 351558008 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1892 GetRequests, 1560 SyntacticMatches, 26 SemanticMatches, 306 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45435 ImplicationChecksByTransitivity, 21.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 197 NumberOfCodeBlocks, 197 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 7286 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 20 PerfectInterpolantSequences, 18/39 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 - CounterExampleResult [Line: 521]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 [L517] COND TRUE i < N [L518] best[i] = 1 [L518] prev[i] = i [L517] i++ [L517] COND TRUE i < N [L518] best[i] = 1 [L518] prev[i] = i [L517] i++ [L517] COND FALSE !(i < N) [L519] i = 1 [L519] COND TRUE i < N [L520] j = 0 [L520] COND TRUE j < i [L521] a[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 69.9 MB in the end (delta: 27.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 597.28 ms. Allocated memory is still 98.6 MB. Free memory was 62.9 MB in the beginning and 64.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 60.98 ms. Allocated memory is still 98.6 MB. Free memory was 64.1 MB in the beginning and 62.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.62 ms. Allocated memory is still 98.6 MB. Free memory was 62.1 MB in the beginning and 60.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 794.77 ms. Allocated memory is still 98.6 MB. Free memory was 60.9 MB in the beginning and 62.8 MB in the end (delta: -1.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * CodeCheck took 24772.78 ms. Allocated memory was 98.6 MB in the beginning and 371.2 MB in the end (delta: 272.6 MB). Free memory was 62.8 MB in the beginning and 197.3 MB in the end (delta: -134.5 MB). Peak memory consumption was 138.7 MB. Max. memory is 16.1 GB. * Witness Printer took 74.47 ms. Allocated memory is still 371.2 MB. Free memory was 196.3 MB in the beginning and 194.2 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 incorrect! Received shutdown request...