./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c --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_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c -s /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/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 4099afe4d4ae3c88800047494721799286636d7a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 17:29:06,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 17:29:06,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 17:29:06,454 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 17:29:06,455 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 17:29:06,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 17:29:06,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 17:29:06,484 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 17:29:06,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 17:29:06,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 17:29:06,498 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 17:29:06,501 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 17:29:06,502 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 17:29:06,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 17:29:06,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 17:29:06,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 17:29:06,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 17:29:06,518 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 17:29:06,522 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 17:29:06,533 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 17:29:06,536 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 17:29:06,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 17:29:06,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 17:29:06,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 17:29:06,556 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 17:29:06,557 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 17:29:06,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 17:29:06,562 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 17:29:06,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 17:29:06,565 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 17:29:06,566 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 17:29:06,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 17:29:06,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 17:29:06,574 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 17:29:06,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 17:29:06,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 17:29:06,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 17:29:06,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 17:29:06,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 17:29:06,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 17:29:06,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 17:29:06,586 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-12-01 17:29:06,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 17:29:06,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 17:29:06,645 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 17:29:06,645 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 17:29:06,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 17:29:06,646 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 17:29:06,646 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 17:29:06,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 17:29:06,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 17:29:06,647 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 17:29:06,649 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 17:29:06,649 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 17:29:06,649 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-01 17:29:06,650 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 17:29:06,650 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 17:29:06,650 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 17:29:06,651 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 17:29:06,651 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 17:29:06,651 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 17:29:06,652 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 17:29:06,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 17:29:06,652 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 17:29:06,653 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 17:29:06,653 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 17:29:06,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 17:29:06,653 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_01441647-215c-4d85-941f-20bd7c178c89/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4099afe4d4ae3c88800047494721799286636d7a [2020-12-01 17:29:06,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 17:29:07,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 17:29:07,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 17:29:07,008 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 17:29:07,009 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 17:29:07,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/../../sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2020-12-01 17:29:07,133 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/data/c1fcca13a/63b5a53daf874b30b12d3f332583b925/FLAG6ad155c69 [2020-12-01 17:29:07,759 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 17:29:07,760 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/sv-benchmarks/c/verifythis/elimination_max_rec_onepoint.c [2020-12-01 17:29:07,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/data/c1fcca13a/63b5a53daf874b30b12d3f332583b925/FLAG6ad155c69 [2020-12-01 17:29:08,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/data/c1fcca13a/63b5a53daf874b30b12d3f332583b925 [2020-12-01 17:29:08,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 17:29:08,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 17:29:08,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 17:29:08,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 17:29:08,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 17:29:08,096 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1965a56d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08, skipping insertion in model container [2020-12-01 17:29:08,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 17:29:08,132 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 17:29:08,498 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:29:08,522 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 17:29:08,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 17:29:08,603 INFO L208 MainTranslator]: Completed translation [2020-12-01 17:29:08,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08 WrapperNode [2020-12-01 17:29:08,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 17:29:08,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 17:29:08,608 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 17:29:08,609 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 17:29:08,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 17:29:08,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 17:29:08,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 17:29:08,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 17:29:08,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,714 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,714 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,723 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... [2020-12-01 17:29:08,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 17:29:08,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 17:29:08,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 17:29:08,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 17:29:08,736 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 05:29:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/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 17:29:08,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 17:29:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-12-01 17:29:08,844 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-12-01 17:29:08,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 17:29:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 17:29:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 17:29:08,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 17:29:08,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 17:29:08,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 17:29:09,932 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 17:29:09,933 INFO L298 CfgBuilder]: Removed 24 assume(true) statements. [2020-12-01 17:29:09,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:29:09 BoogieIcfgContainer [2020-12-01 17:29:09,937 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 17:29:09,939 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 17:29:09,939 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 17:29:09,953 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 17:29:09,953 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:29:09" (1/1) ... [2020-12-01 17:29:09,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 17:29:10,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2020-12-01 17:29:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-12-01 17:29:10,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 17:29:10,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:10,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:10,312 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 17:29:10,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 50 states and 55 transitions. [2020-12-01 17:29:10,428 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 55 transitions. [2020-12-01 17:29:10,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:29:10,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:10,705 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 17:29:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 63 transitions. [2020-12-01 17:29:11,263 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 63 transitions. [2020-12-01 17:29:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 17:29:11,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:11,673 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 17:29:13,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:13,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 60 states and 71 transitions. [2020-12-01 17:29:13,419 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 71 transitions. [2020-12-01 17:29:13,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:29:13,419 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:13,502 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 17:29:13,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:13,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 59 states and 70 transitions. [2020-12-01 17:29:13,543 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2020-12-01 17:29:13,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:29:13,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:13,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:13,868 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 17:29:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:14,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 69 transitions. [2020-12-01 17:29:14,843 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2020-12-01 17:29:14,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:29:14,844 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:14,907 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 17:29:14,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:14,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 57 states and 68 transitions. [2020-12-01 17:29:14,942 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-12-01 17:29:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 17:29:14,946 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:15,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:15,227 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 17:29:16,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:16,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 61 states and 73 transitions. [2020-12-01 17:29:16,374 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 73 transitions. [2020-12-01 17:29:16,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:29:16,375 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:16,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:16,403 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 17:29:16,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:16,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 60 states and 72 transitions. [2020-12-01 17:29:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-12-01 17:29:16,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 17:29:16,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:16,952 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 17:29:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 65 states and 82 transitions. [2020-12-01 17:29:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 82 transitions. [2020-12-01 17:29:18,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:29:18,833 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:18,880 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 17:29:18,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 67 states and 84 transitions. [2020-12-01 17:29:18,898 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2020-12-01 17:29:18,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 17:29:18,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:18,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:19,784 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 17:29:22,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:22,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 73 states and 98 transitions. [2020-12-01 17:29:22,947 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 98 transitions. [2020-12-01 17:29:22,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 17:29:22,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:22,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:23,103 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 17:29:26,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:26,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 77 states and 104 transitions. [2020-12-01 17:29:26,277 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 104 transitions. [2020-12-01 17:29:26,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:29:26,279 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:26,679 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 17:29:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:29,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 81 states and 117 transitions. [2020-12-01 17:29:29,720 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 117 transitions. [2020-12-01 17:29:29,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 17:29:29,722 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:29,756 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 17:29:31,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:31,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 80 states and 116 transitions. [2020-12-01 17:29:31,196 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 116 transitions. [2020-12-01 17:29:31,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:29:31,198 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:31,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:29:36,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:36,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 84 states and 129 transitions. [2020-12-01 17:29:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2020-12-01 17:29:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:29:36,233 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:36,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:29:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:37,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 84 states and 128 transitions. [2020-12-01 17:29:37,325 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 128 transitions. [2020-12-01 17:29:37,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:29:37,327 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:37,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:29:39,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:39,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 86 states and 133 transitions. [2020-12-01 17:29:39,113 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 133 transitions. [2020-12-01 17:29:39,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:29:39,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:39,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:39,143 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:29:40,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:40,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 86 states and 132 transitions. [2020-12-01 17:29:40,548 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 132 transitions. [2020-12-01 17:29:40,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 17:29:40,549 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:41,259 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 17:29:48,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:48,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 92 states and 140 transitions. [2020-12-01 17:29:48,835 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 140 transitions. [2020-12-01 17:29:48,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:29:48,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:48,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:48,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:29:48,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:48,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 94 states and 148 transitions. [2020-12-01 17:29:48,928 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 148 transitions. [2020-12-01 17:29:48,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:29:48,929 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:50,029 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 17:29:57,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:29:57,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 103 states and 174 transitions. [2020-12-01 17:29:57,701 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 174 transitions. [2020-12-01 17:29:57,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 17:29:57,701 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:29:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:29:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:30:01,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:01,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 106 states and 176 transitions. [2020-12-01 17:30:01,199 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 176 transitions. [2020-12-01 17:30:01,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:30:01,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:01,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:01,225 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 17:30:01,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:01,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 105 states and 175 transitions. [2020-12-01 17:30:01,254 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 175 transitions. [2020-12-01 17:30:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 17:30:01,255 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:03,488 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 17:30:04,195 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-12-01 17:30:04,933 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-01 17:30:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:13,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 109 states and 192 transitions. [2020-12-01 17:30:13,123 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 192 transitions. [2020-12-01 17:30:13,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 17:30:13,125 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:13,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:15,135 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 17:30:33,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:33,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 120 states and 224 transitions. [2020-12-01 17:30:33,057 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 224 transitions. [2020-12-01 17:30:33,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 17:30:33,058 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:33,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:37,473 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 17:30:40,079 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-01 17:30:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:47,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 88 states and 131 transitions. [2020-12-01 17:30:47,937 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 131 transitions. [2020-12-01 17:30:47,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 17:30:47,938 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:47,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:30:57,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:30:57,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 94 states and 137 transitions. [2020-12-01 17:30:57,349 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 137 transitions. [2020-12-01 17:30:57,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 17:30:57,351 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:30:57,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:30:57,837 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:31:02,902 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-12-01 17:31:05,574 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-12-01 17:31:09,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:31:09,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 84 states and 121 transitions. [2020-12-01 17:31:09,286 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 121 transitions. [2020-12-01 17:31:09,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 17:31:09,288 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:31:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:31:12,630 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:31:20,576 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-12-01 17:31:25,493 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 25 [2020-12-01 17:31:34,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:31:34,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 85 states and 114 transitions. [2020-12-01 17:31:34,133 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 114 transitions. [2020-12-01 17:31:34,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 17:31:34,134 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:31:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:31:41,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:31:43,133 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33 [2020-12-01 17:31:46,674 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-12-01 17:31:49,356 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33 [2020-12-01 17:31:52,171 WARN L197 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2020-12-01 17:31:54,044 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2020-12-01 17:31:55,442 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2020-12-01 17:31:56,843 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-12-01 17:31:57,821 WARN L197 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-01 17:31:59,588 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-12-01 17:32:03,084 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-12-01 17:32:05,153 WARN L197 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-01 17:32:08,623 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2020-12-01 17:32:09,393 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-12-01 17:32:20,788 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-12-01 17:32:25,852 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 23 [2020-12-01 17:32:31,605 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 24 [2020-12-01 17:32:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:32:33,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 96 states and 145 transitions. [2020-12-01 17:32:33,902 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 145 transitions. [2020-12-01 17:32:33,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:32:33,904 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:32:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:32:35,889 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 17:32:53,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:32:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 102 states and 153 transitions. [2020-12-01 17:32:53,620 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 153 transitions. [2020-12-01 17:32:53,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:32:53,622 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:32:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:32:54,693 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-01 17:33:12,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:33:12,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 83 states and 117 transitions. [2020-12-01 17:33:12,667 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 117 transitions. [2020-12-01 17:33:12,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:33:12,668 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:33:12,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:33:19,749 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 26 [2020-12-01 17:33:27,624 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:33:29,740 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2020-12-01 17:33:31,910 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2020-12-01 17:33:35,628 WARN L197 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2020-12-01 17:33:37,983 WARN L197 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2020-12-01 17:33:41,921 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2020-12-01 17:33:42,774 WARN L197 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-01 17:33:45,990 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2020-12-01 17:33:46,999 WARN L197 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2020-12-01 17:33:49,990 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2020-12-01 17:33:54,415 WARN L197 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2020-12-01 17:33:57,590 WARN L197 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-12-01 17:33:59,565 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2020-12-01 17:34:01,796 WARN L197 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2020-12-01 17:34:05,996 WARN L197 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-01 17:34:08,899 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-01 17:34:10,797 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 17:34:12,816 WARN L197 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-01 17:34:14,550 WARN L197 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-01 17:34:15,938 WARN L197 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-01 17:34:18,079 WARN L197 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-01 17:34:20,257 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-12-01 17:34:21,715 WARN L197 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-01 17:34:23,028 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 17:34:25,150 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-01 17:34:27,276 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-01 17:34:30,740 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33 [2020-12-01 17:34:38,091 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2020-12-01 17:34:45,175 WARN L197 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 27 [2020-12-01 17:34:48,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:34:48,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 87 states and 137 transitions. [2020-12-01 17:34:48,687 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 137 transitions. [2020-12-01 17:34:48,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 17:34:48,689 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:34:48,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:34:48,871 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:34:50,716 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 30 [2020-12-01 17:34:56,296 WARN L197 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 31 [2020-12-01 17:35:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:00,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 85 states and 131 transitions. [2020-12-01 17:35:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 131 transitions. [2020-12-01 17:35:00,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 17:35:00,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:00,091 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:35:10,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:10,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 84 states and 129 transitions. [2020-12-01 17:35:10,620 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 129 transitions. [2020-12-01 17:35:10,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 17:35:10,621 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:10,649 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:35:27,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:35:27,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 80 states and 125 transitions. [2020-12-01 17:35:27,819 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 125 transitions. [2020-12-01 17:35:27,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 17:35:27,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:35:27,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:35:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-01 17:35:50,766 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 34 [2020-12-01 17:35:53,178 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2020-12-01 17:35:54,002 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-12-01 17:35:56,385 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-12-01 17:35:57,207 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2020-12-01 17:35:57,917 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-12-01 17:35:58,653 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-12-01 17:36:01,162 WARN L197 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-12-01 17:36:08,089 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 17:36:25,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:36:25,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 84 states and 132 transitions. [2020-12-01 17:36:25,691 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 132 transitions. [2020-12-01 17:36:25,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 17:36:25,692 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:36:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:36:25,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:36:40,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:36:40,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 84 states and 131 transitions. [2020-12-01 17:36:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 131 transitions. [2020-12-01 17:36:40,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 17:36:40,776 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:36:40,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:36:40,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-12-01 17:36:50,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:36:50,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 77 states and 124 transitions. [2020-12-01 17:36:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 124 transitions. [2020-12-01 17:36:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 17:36:50,661 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:36:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:36:55,350 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2020-12-01 17:36:57,036 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-01 17:36:58,969 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 17:37:00,902 WARN L197 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 17:37:02,977 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-01 17:37:08,483 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-12-01 17:37:10,339 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 27 [2020-12-01 17:37:10,349 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 17:37:12,627 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 36 [2020-12-01 17:37:15,070 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 37 [2020-12-01 17:37:19,009 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2020-12-01 17:37:21,560 WARN L197 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2020-12-01 17:37:25,635 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36 [2020-12-01 17:37:26,503 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-01 17:37:30,577 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2020-12-01 17:37:33,295 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2020-12-01 17:37:38,693 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-12-01 17:37:40,875 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 17:37:43,235 WARN L197 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-01 17:37:44,218 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 23 [2020-12-01 17:37:46,494 WARN L197 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-12-01 17:37:47,519 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2020-12-01 17:37:51,930 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 20 [2020-12-01 17:37:52,978 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 19 [2020-12-01 17:37:57,659 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 18 [2020-12-01 17:38:08,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:38:08,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 81 states and 127 transitions. [2020-12-01 17:38:08,729 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 127 transitions. [2020-12-01 17:38:08,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-01 17:38:08,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:38:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:38:10,841 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-12-01 17:38:11,606 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 37 [2020-12-01 17:38:12,305 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2020-12-01 17:38:13,186 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 37 [2020-12-01 17:38:13,986 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2020-12-01 17:38:14,865 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 34 [2020-12-01 17:38:15,638 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 35 [2020-12-01 17:38:16,476 WARN L197 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 36 [2020-12-01 17:38:17,253 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2020-12-01 17:38:18,771 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 56 [2020-12-01 17:38:20,492 WARN L197 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2020-12-01 17:38:22,965 WARN L197 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-12-01 17:38:25,692 WARN L197 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-01 17:38:25,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:38:25,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 81 states and 124 transitions. [2020-12-01 17:38:25,992 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 124 transitions. [2020-12-01 17:38:25,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-01 17:38:25,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 17:38:26,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 17:38:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 2 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-12-01 17:38:54,766 WARN L197 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2020-12-01 17:38:56,367 WARN L197 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-12-01 17:38:59,134 WARN L197 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-12-01 17:39:02,060 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-12-01 17:39:03,691 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-01 17:39:05,098 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 17:39:07,807 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 17:39:10,122 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-12-01 17:39:11,767 WARN L197 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-01 17:39:13,181 WARN L197 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-01 17:39:15,417 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-12-01 17:39:17,721 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-01 17:39:19,091 WARN L197 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-01 17:39:20,431 WARN L197 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-01 17:39:22,692 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-12-01 17:39:25,265 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 17:39:26,471 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 29 [2020-12-01 17:39:29,957 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-01 17:39:35,643 WARN L197 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2020-12-01 17:39:36,911 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 30 DAG size of output: 28 [2020-12-01 17:39:42,536 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 23 [2020-12-01 17:39:45,944 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 27 [2020-12-01 17:39:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 17:39:54,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 60 states and 84 transitions. [2020-12-01 17:39:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 84 transitions. [2020-12-01 17:39:54,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 17:39:54,803 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 43 iterations. [2020-12-01 17:39:54,809 INFO L765 CodeCheckObserver]: All specifications hold 19 specifications checked. All of them hold [2020-12-01 17:39:55,013 WARN L197 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 1 [2020-12-01 17:39:55,198 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 5 [2020-12-01 17:39:55,353 WARN L197 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 1 [2020-12-01 17:39:55,782 WARN L197 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-12-01 17:39:55,985 WARN L197 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 36 [2020-12-01 17:39:56,320 WARN L197 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-01 17:39:57,101 WARN L197 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2020-12-01 17:39:57,276 WARN L197 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 1 [2020-12-01 17:39:57,424 WARN L197 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 1 [2020-12-01 17:39:57,570 WARN L197 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 1 [2020-12-01 17:39:57,706 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 1 [2020-12-01 17:39:57,869 WARN L197 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 1 [2020-12-01 17:39:58,280 WARN L197 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-12-01 17:39:58,648 WARN L197 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 17:39:58,858 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 1 [2020-12-01 17:39:59,001 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 15 [2020-12-01 17:39:59,207 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 5 [2020-12-01 17:39:59,517 WARN L197 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-12-01 17:39:59,518 INFO L569 CodeCheckObserver]: Invariant with dag size 1 [2020-12-01 17:39:59,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 05:39:59 ImpRootNode [2020-12-01 17:39:59,522 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 17:39:59,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 17:39:59,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 17:39:59,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 17:39:59,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 05:29:09" (3/4) ... [2020-12-01 17:39:59,531 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 17:39:59,535 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure check [2020-12-01 17:39:59,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2020-12-01 17:39:59,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-12-01 17:39:59,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-01 17:39:59,544 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 17:39:59,612 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_01441647-215c-4d85-941f-20bd7c178c89/bin/ukojak/witness.graphml [2020-12-01 17:39:59,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 17:39:59,615 INFO L168 Benchmark]: Toolchain (without parser) took 651530.62 ms. Allocated memory was 81.8 MB in the beginning and 627.0 MB in the end (delta: 545.3 MB). Free memory was 53.1 MB in the beginning and 210.9 MB in the end (delta: -157.8 MB). Peak memory consumption was 387.5 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,616 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 17:39:59,616 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.17 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 52.9 MB in the beginning and 86.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.79 ms. Allocated memory is still 109.1 MB. Free memory was 86.4 MB in the beginning and 84.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,617 INFO L168 Benchmark]: Boogie Preprocessor took 34.75 ms. Allocated memory is still 109.1 MB. Free memory was 84.3 MB in the beginning and 83.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,617 INFO L168 Benchmark]: RCFGBuilder took 1204.03 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 77.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,618 INFO L168 Benchmark]: CodeCheck took 649583.88 ms. Allocated memory was 109.1 MB in the beginning and 627.0 MB in the end (delta: 518.0 MB). Free memory was 77.4 MB in the beginning and 215.1 MB in the end (delta: -137.7 MB). Peak memory consumption was 379.9 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,618 INFO L168 Benchmark]: Witness Printer took 87.44 ms. Allocated memory is still 627.0 MB. Free memory was 215.1 MB in the beginning and 210.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 17:39:59,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 47 locations, 19 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 644.8s, OverallIterations: 43, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17039360 SDtfs, 47543270 SDslu, 33653032 SDs, 0 SdLazy, -1110670054 SolverSat, 1809380400 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11473 GetRequests, 10410 SyntacticMatches, 191 SemanticMatches, 872 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364281 ImplicationChecksByTransitivity, 631.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 94.8s InterpolantComputationTime, 768 NumberOfCodeBlocks, 768 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 726 ConstructedInterpolants, 0 QuantifiedInterpolants, 178327 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 42 InterpolantComputations, 23 PerfectInterpolantSequences, 116/293 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: 48]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 52]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 48]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 40]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 49]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 52]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 52]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 49]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 26]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 34]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 26]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 26]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 33]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 33]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 26]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 34]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 81.8 MB. Free memory is still 43.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.17 ms. Allocated memory was 81.8 MB in the beginning and 109.1 MB in the end (delta: 27.3 MB). Free memory was 52.9 MB in the beginning and 86.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.79 ms. Allocated memory is still 109.1 MB. Free memory was 86.4 MB in the beginning and 84.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.75 ms. Allocated memory is still 109.1 MB. Free memory was 84.3 MB in the beginning and 83.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1204.03 ms. Allocated memory is still 109.1 MB. Free memory was 83.0 MB in the beginning and 77.4 MB in the end (delta: 5.7 MB). Peak memory consumption was 31.3 MB. Max. memory is 16.1 GB. * CodeCheck took 649583.88 ms. Allocated memory was 109.1 MB in the beginning and 627.0 MB in the end (delta: 518.0 MB). Free memory was 77.4 MB in the beginning and 215.1 MB in the end (delta: -137.7 MB). Peak memory consumption was 379.9 MB. Max. memory is 16.1 GB. * Witness Printer took 87.44 ms. Allocated memory is still 627.0 MB. Free memory was 215.1 MB in the beginning and 210.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...