./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_6.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/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 8a6bc1adbcafb13db44c5d4b4826990150e2f336 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:36:43,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:36:43,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:36:43,716 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:36:43,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:36:43,718 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:36:43,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:36:43,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:36:43,725 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:36:43,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:36:43,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:36:43,728 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:36:43,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:36:43,730 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:36:43,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:36:43,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:36:43,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:36:43,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:36:43,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:36:43,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:36:43,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:36:43,743 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:36:43,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:36:43,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:36:43,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:36:43,749 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:36:43,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:36:43,751 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:36:43,751 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:36:43,752 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:36:43,753 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:36:43,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:36:43,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:36:43,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:36:43,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:36:43,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:36:43,758 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:36:43,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:36:43,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:36:43,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:36:43,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:36:43,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:36:43,784 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:36:43,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:36:43,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:36:43,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:36:43,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:36:43,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:36:43,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:36:43,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:36:43,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:36:43,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:36:43,788 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:36:43,788 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:36:43,788 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:36:43,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:36:43,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:36:43,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:36:43,789 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:36:43,790 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:36:43,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:36:43,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:36:43,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:36:43,790 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:36:43,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:36:43,791 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:36:43,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:36:43,791 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_f64dcf4c-9831-4073-934a-0925f0621519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a6bc1adbcafb13db44c5d4b4826990150e2f336 [2020-11-28 04:36:44,049 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:36:44,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:36:44,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:36:44,086 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:36:44,087 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:36:44,088 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_6.c [2020-11-28 04:36:44,170 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/data/c3954696c/a37e4e5b5fd94df6b2273658cf0d3fb0/FLAG28785553f [2020-11-28 04:36:44,623 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:36:44,624 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/sv-benchmarks/c/locks/test_locks_6.c [2020-11-28 04:36:44,634 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/data/c3954696c/a37e4e5b5fd94df6b2273658cf0d3fb0/FLAG28785553f [2020-11-28 04:36:44,995 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/data/c3954696c/a37e4e5b5fd94df6b2273658cf0d3fb0 [2020-11-28 04:36:44,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:36:44,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:36:45,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:45,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:36:45,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:36:45,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:44" (1/1) ... [2020-11-28 04:36:45,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b491859 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45, skipping insertion in model container [2020-11-28 04:36:45,012 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:36:44" (1/1) ... [2020-11-28 04:36:45,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:36:45,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:36:45,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:45,257 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:36:45,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:36:45,296 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:36:45,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45 WrapperNode [2020-11-28 04:36:45,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:36:45,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:45,299 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:36:45,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:36:45,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:36:45,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:36:45,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:36:45,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:36:45,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,348 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... [2020-11-28 04:36:45,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:36:45,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:36:45,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:36:45,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:36:45,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:36:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:36:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:36:45,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:36:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:36:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:36:46,056 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:36:46,056 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-28 04:36:46,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:46 BoogieIcfgContainer [2020-11-28 04:36:46,058 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:36:46,059 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:36:46,060 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:36:46,069 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:36:46,070 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:46" (1/1) ... [2020-11-28 04:36:46,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:36:46,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2020-11-28 04:36:46,117 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2020-11-28 04:36:46,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:36:46,120 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:46,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 32 transitions. [2020-11-28 04:36:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 32 transitions. [2020-11-28 04:36:46,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:36:46,265 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:46,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:46,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2020-11-28 04:36:46,370 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2020-11-28 04:36:46,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:36:46,371 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:46,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2020-11-28 04:36:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2020-11-28 04:36:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:36:46,525 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:46,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:46,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2020-11-28 04:36:46,796 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2020-11-28 04:36:46,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:36:46,797 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:46,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:46,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2020-11-28 04:36:46,950 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2020-11-28 04:36:46,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:36:46,950 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:46,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:47,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:47,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2020-11-28 04:36:47,438 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2020-11-28 04:36:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:36:47,439 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:47,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2020-11-28 04:36:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2020-11-28 04:36:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:36:47,671 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:47,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:47,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2020-11-28 04:36:47,822 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2020-11-28 04:36:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:36:47,822 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:47,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:48,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2020-11-28 04:36:48,587 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-11-28 04:36:48,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:36:48,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:48,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:48,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2020-11-28 04:36:48,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2020-11-28 04:36:48,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:36:48,844 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:48,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:48,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:49,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:49,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2020-11-28 04:36:49,018 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2020-11-28 04:36:49,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:36:49,019 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:49,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:49,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:50,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:50,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-11-28 04:36:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-11-28 04:36:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:36:50,057 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:50,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:50,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:50,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2020-11-28 04:36:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2020-11-28 04:36:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:50,245 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:50,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:50,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:50,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2020-11-28 04:36:50,577 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2020-11-28 04:36:50,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:50,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:50,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:50,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2020-11-28 04:36:50,807 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2020-11-28 04:36:50,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:50,807 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:50,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2020-11-28 04:36:51,005 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2020-11-28 04:36:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:51,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:51,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:51,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:52,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-11-28 04:36:52,396 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-11-28 04:36:52,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:36:52,397 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:52,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:52,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:52,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-11-28 04:36:52,634 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-11-28 04:36:52,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:52,635 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:52,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:52,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:52,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2020-11-28 04:36:52,957 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2020-11-28 04:36:52,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:52,959 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:52,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:53,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:53,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2020-11-28 04:36:53,300 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2020-11-28 04:36:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:53,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:53,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:53,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:53,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2020-11-28 04:36:53,542 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2020-11-28 04:36:53,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:53,543 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:53,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:53,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:53,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:53,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2020-11-28 04:36:53,810 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2020-11-28 04:36:53,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:36:53,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:53,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:36:54,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:54,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2020-11-28 04:36:54,110 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-11-28 04:36:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:36:54,110 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:54,123 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2020-11-28 04:36:55,582 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2020-11-28 04:36:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:55,583 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:55,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:55,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:55,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2020-11-28 04:36:55,964 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2020-11-28 04:36:55,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:55,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:55,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:56,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:56,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-11-28 04:36:56,343 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-11-28 04:36:56,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:56,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:56,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-11-28 04:36:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-11-28 04:36:56,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:56,626 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:56,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:56,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:56,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2020-11-28 04:36:56,889 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2020-11-28 04:36:56,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:56,889 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:56,910 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:57,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:57,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2020-11-28 04:36:57,154 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2020-11-28 04:36:57,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:36:57,155 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:36:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:36:57,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:36:57,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:36:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2020-11-28 04:36:57,471 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2020-11-28 04:36:57,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 04:36:57,471 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2020-11-28 04:36:57,483 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-28 04:36:57,647 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:36:57,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,659 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,660 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:36:57,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,660 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,661 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-28 04:36:57,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,661 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:36:57 ImpRootNode [2020-11-28 04:36:57,663 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:36:57,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:36:57,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:36:57,664 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:36:57,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:36:46" (3/4) ... [2020-11-28 04:36:57,668 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 04:36:57,678 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 04:36:57,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 04:36:57,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 04:36:57,679 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 04:36:57,707 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:36:57,707 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:36:57,707 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-28 04:36:57,745 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f64dcf4c-9831-4073-934a-0925f0621519/bin/ukojak/witness.graphml [2020-11-28 04:36:57,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:36:57,747 INFO L168 Benchmark]: Toolchain (without parser) took 12746.90 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 66.5 MB in the beginning and 158.1 MB in the end (delta: -91.6 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,748 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:57,749 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.41 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 78.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,749 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,750 INFO L168 Benchmark]: Boogie Preprocessor took 24.30 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 76.0 MB in the end (delta: 983.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:36:57,750 INFO L168 Benchmark]: RCFGBuilder took 701.02 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 50.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,751 INFO L168 Benchmark]: CodeCheck took 11603.22 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 49.7 MB in the beginning and 162.3 MB in the end (delta: -112.6 MB). Peak memory consumption was 101.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,752 INFO L168 Benchmark]: Witness Printer took 82.11 ms. Allocated memory is still 218.1 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 04:36:57,755 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, 21 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.3s, OverallIterations: 31, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1610612736 SDtfs, -8493572 SDslu, 1073741824 SDs, 0 SdLazy, -897837832 SolverSat, 153460476 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2858 GetRequests, 2664 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15848 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 11811 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 3]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant [2020-11-28 04:36:57,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,757 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 6]: Loop Invariant [2020-11-28 04:36:57,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 29]: Loop Invariant [2020-11-28 04:36:57,758 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-28 04:36:57,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory is still 82.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.41 ms. Allocated memory is still 102.8 MB. Free memory was 66.3 MB in the beginning and 78.6 MB in the end (delta: -12.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.32 ms. Allocated memory is still 102.8 MB. Free memory was 78.6 MB in the beginning and 77.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.30 ms. Allocated memory is still 102.8 MB. Free memory was 77.0 MB in the beginning and 76.0 MB in the end (delta: 983.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 701.02 ms. Allocated memory is still 102.8 MB. Free memory was 75.7 MB in the beginning and 50.1 MB in the end (delta: 25.6 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * CodeCheck took 11603.22 ms. Allocated memory was 102.8 MB in the beginning and 218.1 MB in the end (delta: 115.3 MB). Free memory was 49.7 MB in the beginning and 162.3 MB in the end (delta: -112.6 MB). Peak memory consumption was 101.1 MB. Max. memory is 16.1 GB. * Witness Printer took 82.11 ms. Allocated memory is still 218.1 MB. Free memory was 162.3 MB in the beginning and 158.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...