./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_7.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_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/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 d2a1f90505878c0035f7701a954d17ca4375eb05 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:12:36,369 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:12:36,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:12:36,440 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:12:36,441 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:12:36,447 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:12:36,449 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:12:36,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:12:36,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:12:36,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:12:36,473 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:12:36,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:12:36,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:12:36,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:12:36,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:12:36,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:12:36,485 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:12:36,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:12:36,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:12:36,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:12:36,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:12:36,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:12:36,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:12:36,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:12:36,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:12:36,519 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:12:36,519 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:12:36,521 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:12:36,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:12:36,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:12:36,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:12:36,525 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:12:36,527 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:12:36,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:12:36,530 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:12:36,530 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:12:36,531 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:12:36,531 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:12:36,532 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:12:36,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:12:36,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:12:36,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-30 01:12:36,579 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:12:36,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:12:36,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 01:12:36,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 01:12:36,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:12:36,582 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:12:36,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:12:36,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:12:36,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:12:36,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:12:36,584 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-30 01:12:36,584 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-30 01:12:36,584 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-30 01:12:36,585 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:12:36,585 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:12:36,585 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:12:36,585 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-30 01:12:36,586 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-30 01:12:36,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:12:36,586 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:12:36,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:12:36,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:12:36,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:12:36,587 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-30 01:12:36,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:12:36,588 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_231c07d3-c217-47ae-8d8f-3074692004ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d2a1f90505878c0035f7701a954d17ca4375eb05 [2020-11-30 01:12:36,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:12:36,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:12:36,941 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:12:36,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:12:36,943 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:12:36,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/../../sv-benchmarks/c/locks/test_locks_7.c [2020-11-30 01:12:37,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/data/c5ce7879f/fcc0caecb046433fae29ce1ecd2fce2f/FLAG14b6e5a4d [2020-11-30 01:12:37,630 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:12:37,631 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/sv-benchmarks/c/locks/test_locks_7.c [2020-11-30 01:12:37,640 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/data/c5ce7879f/fcc0caecb046433fae29ce1ecd2fce2f/FLAG14b6e5a4d [2020-11-30 01:12:37,962 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/data/c5ce7879f/fcc0caecb046433fae29ce1ecd2fce2f [2020-11-30 01:12:37,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:12:37,973 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:12:37,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:37,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:12:37,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:12:37,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:37" (1/1) ... [2020-11-30 01:12:37,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@454d5c24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:37, skipping insertion in model container [2020-11-30 01:12:37,984 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:12:37" (1/1) ... [2020-11-30 01:12:37,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:12:38,025 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:12:38,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:38,250 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:12:38,296 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:12:38,316 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:12:38,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38 WrapperNode [2020-11-30 01:12:38,318 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:12:38,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:38,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:12:38,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:12:38,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,347 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:12:38,379 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:12:38,379 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:12:38,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:12:38,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,416 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... [2020-11-30 01:12:38,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:12:38,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:12:38,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:12:38,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:12:38,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:12:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-30 01:12:38,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:12:38,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:12:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:12:38,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:12:39,196 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:12:39,196 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-11-30 01:12:39,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:39 BoogieIcfgContainer [2020-11-30 01:12:39,199 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:12:39,199 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-30 01:12:39,200 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-30 01:12:39,210 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-30 01:12:39,210 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:39" (1/1) ... [2020-11-30 01:12:39,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:12:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 23 states and 38 transitions. [2020-11-30 01:12:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-11-30 01:12:39,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:12:39,257 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:39,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:39,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:39,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:39,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2020-11-30 01:12:39,448 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2020-11-30 01:12:39,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:12:39,449 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:39,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:39,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:39,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 27 states and 42 transitions. [2020-11-30 01:12:39,569 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 42 transitions. [2020-11-30 01:12:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:12:39,569 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:39,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:39,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 27 states and 41 transitions. [2020-11-30 01:12:39,749 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 41 transitions. [2020-11-30 01:12:39,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:12:39,750 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:39,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:40,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2020-11-30 01:12:40,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2020-11-30 01:12:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:12:40,078 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:40,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:40,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:40,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:40,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2020-11-30 01:12:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2020-11-30 01:12:40,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 01:12:40,629 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:40,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:40,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2020-11-30 01:12:40,819 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2020-11-30 01:12:40,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:12:40,819 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:40,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:40,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2020-11-30 01:12:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2020-11-30 01:12:41,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:12:41,010 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:41,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:42,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:42,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-11-30 01:12:42,045 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-11-30 01:12:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 01:12:42,046 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:42,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:42,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:42,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2020-11-30 01:12:42,230 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2020-11-30 01:12:42,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:12:42,230 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:42,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:42,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:42,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2020-11-30 01:12:42,442 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2020-11-30 01:12:42,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:12:42,442 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:42,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:42,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:42,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2020-11-30 01:12:42,617 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2020-11-30 01:12:42,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:12:42,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:42,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:43,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:43,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2020-11-30 01:12:43,727 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2020-11-30 01:12:43,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 01:12:43,728 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:43,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:43,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:44,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 32 states and 49 transitions. [2020-11-30 01:12:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 49 transitions. [2020-11-30 01:12:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:12:44,031 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:44,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:44,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2020-11-30 01:12:44,315 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2020-11-30 01:12:44,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:12:44,316 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:44,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:44,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:44,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 34 states and 49 transitions. [2020-11-30 01:12:44,581 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2020-11-30 01:12:44,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:12:44,582 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:46,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 40 states and 63 transitions. [2020-11-30 01:12:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 63 transitions. [2020-11-30 01:12:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:12:46,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:46,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:46,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:46,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2020-11-30 01:12:46,295 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2020-11-30 01:12:46,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-30 01:12:46,296 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:46,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:46,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:46,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2020-11-30 01:12:46,640 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-11-30 01:12:46,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:46,640 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:46,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:46,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:46,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:46,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 34 states and 51 transitions. [2020-11-30 01:12:46,908 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 51 transitions. [2020-11-30 01:12:46,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:46,908 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:46,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:47,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:47,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 35 states and 51 transitions. [2020-11-30 01:12:47,276 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 51 transitions. [2020-11-30 01:12:47,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:47,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:47,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:47,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:49,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 42 states and 68 transitions. [2020-11-30 01:12:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 68 transitions. [2020-11-30 01:12:49,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:49,578 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:49,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 43 states and 68 transitions. [2020-11-30 01:12:49,835 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 68 transitions. [2020-11-30 01:12:49,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:49,836 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:49,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:49,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:50,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:50,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2020-11-30 01:12:50,136 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2020-11-30 01:12:50,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 01:12:50,136 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:50,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:50,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2020-11-30 01:12:50,478 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2020-11-30 01:12:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:50,478 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:50,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:50,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:50,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:50,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-11-30 01:12:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-11-30 01:12:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:50,854 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:50,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:51,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:51,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2020-11-30 01:12:51,342 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-11-30 01:12:51,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:51,342 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:51,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:51,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:51,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2020-11-30 01:12:51,660 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2020-11-30 01:12:51,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:51,661 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:51,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:51,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:51,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-11-30 01:12:51,974 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-11-30 01:12:51,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:51,974 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:51,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:52,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:52,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 39 states and 53 transitions. [2020-11-30 01:12:52,292 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-30 01:12:52,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 01:12:52,293 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:52,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:52,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:12:52,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:52,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2020-11-30 01:12:52,724 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2020-11-30 01:12:52,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 01:12:52,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:52,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:52,747 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:55,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:55,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 32 states and 53 transitions. [2020-11-30 01:12:55,313 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 53 transitions. [2020-11-30 01:12:55,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:55,313 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:55,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:55,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2020-11-30 01:12:55,721 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2020-11-30 01:12:55,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:55,721 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:55,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:55,733 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:56,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:56,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2020-11-30 01:12:56,132 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2020-11-30 01:12:56,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:56,133 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:56,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:56,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2020-11-30 01:12:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2020-11-30 01:12:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:56,460 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:56,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:56,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:56,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2020-11-30 01:12:56,785 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2020-11-30 01:12:56,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:56,785 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:57,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 37 states and 53 transitions. [2020-11-30 01:12:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 53 transitions. [2020-11-30 01:12:57,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:57,133 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:57,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 38 states and 53 transitions. [2020-11-30 01:12:57,528 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2020-11-30 01:12:57,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 01:12:57,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-30 01:12:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:12:57,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-30 01:12:57,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-30 01:12:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2020-11-30 01:12:57,998 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2020-11-30 01:12:57,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:12:57,999 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 39 iterations. [2020-11-30 01:12:58,005 INFO L765 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2020-11-30 01:12:58,252 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 01:12:58,257 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,261 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,262 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 01:12:58,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,262 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,263 INFO L569 CodeCheckObserver]: Invariant with dag size 3 [2020-11-30 01:12:58,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,263 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 30.11 01:12:58 ImpRootNode [2020-11-30 01:12:58,264 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-30 01:12:58,265 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:12:58,265 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:12:58,265 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:12:58,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:12:39" (3/4) ... [2020-11-30 01:12:58,270 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:12:58,281 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-30 01:12:58,281 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:12:58,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 01:12:58,282 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:12:58,322 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-30 01:12:58,322 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-30 01:12:58,323 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2020-11-30 01:12:58,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_231c07d3-c217-47ae-8d8f-3074692004ba/bin/ukojak/witness.graphml [2020-11-30 01:12:58,373 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:12:58,375 INFO L168 Benchmark]: Toolchain (without parser) took 20403.08 ms. Allocated memory was 115.3 MB in the beginning and 360.7 MB in the end (delta: 245.4 MB). Free memory was 85.6 MB in the beginning and 173.9 MB in the end (delta: -88.3 MB). Peak memory consumption was 156.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,384 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:58,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 343.30 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 92.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.87 ms. Allocated memory is still 115.3 MB. Free memory was 92.6 MB in the beginning and 90.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,389 INFO L168 Benchmark]: Boogie Preprocessor took 50.89 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 917.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:12:58,390 INFO L168 Benchmark]: RCFGBuilder took 768.55 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 61.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,390 INFO L168 Benchmark]: CodeCheck took 19064.86 ms. Allocated memory was 115.3 MB in the beginning and 360.7 MB in the end (delta: 245.4 MB). Free memory was 61.6 MB in the beginning and 177.1 MB in the end (delta: -115.5 MB). Peak memory consumption was 131.9 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,391 INFO L168 Benchmark]: Witness Printer took 108.33 ms. Allocated memory is still 360.7 MB. Free memory was 177.1 MB in the beginning and 173.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:12:58,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.7s, OverallIterations: 39, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 17796604 SDslu, 0 SDs, 0 SdLazy, 1210266104 SolverSat, 1719369212 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3988 GetRequests, 3734 SyntacticMatches, 0 SemanticMatches, 254 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28320 ImplicationChecksByTransitivity, 16.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 429 NumberOfCodeBlocks, 429 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 391 ConstructedInterpolants, 0 QuantifiedInterpolants, 18029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 PerfectInterpolantSequences, 16/16 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: 6]: Loop Invariant [2020-11-30 01:12:58,399 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,400 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 32]: Loop Invariant [2020-11-30 01:12:58,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 7]: Loop Invariant [2020-11-30 01:12:58,403 WARN L1295 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2020-11-30 01:12:58,404 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 0.22 ms. Allocated memory is still 79.7 MB. Free memory was 39.7 MB in the beginning and 39.7 MB in the end (delta: 38.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 343.30 ms. Allocated memory is still 115.3 MB. Free memory was 85.4 MB in the beginning and 92.6 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.87 ms. Allocated memory is still 115.3 MB. Free memory was 92.6 MB in the beginning and 90.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.89 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 90.0 MB in the end (delta: 917.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 768.55 ms. Allocated memory is still 115.3 MB. Free memory was 90.0 MB in the beginning and 61.6 MB in the end (delta: 28.3 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.1 GB. * CodeCheck took 19064.86 ms. Allocated memory was 115.3 MB in the beginning and 360.7 MB in the end (delta: 245.4 MB). Free memory was 61.6 MB in the beginning and 177.1 MB in the end (delta: -115.5 MB). Peak memory consumption was 131.9 MB. Max. memory is 16.1 GB. * Witness Printer took 108.33 ms. Allocated memory is still 360.7 MB. Free memory was 177.1 MB in the beginning and 173.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 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...