./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3589167bbf5d7f5cd80f4f92aa27b7dbe19a0217 ............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 16:19:11,260 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:19:11,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:19:11,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:19:11,311 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:19:11,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:19:11,320 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:19:11,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:19:11,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:19:11,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:19:11,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:19:11,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:19:11,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:19:11,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:19:11,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:19:11,358 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:19:11,359 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:19:11,364 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:19:11,367 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:19:11,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:19:11,376 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:19:11,377 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:19:11,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:19:11,381 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:19:11,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:19:11,390 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:19:11,390 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:19:11,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:19:11,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:19:11,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:19:11,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:19:11,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:19:11,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:19:11,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:19:11,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:19:11,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:19:11,401 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:19:11,401 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:19:11,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:19:11,402 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:19:11,403 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:19:11,404 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-12-01 16:19:11,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:19:11,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:19:11,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:19:11,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:19:11,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:19:11,447 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:19:11,447 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:19:11,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:19:11,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:19:11,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:19:11,449 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:19:11,449 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:19:11,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:19:11,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:19:11,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:19:11,450 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:19:11,450 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:19:11,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:19:11,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:19:11,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:19:11,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:19:11,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:19:11,452 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:19:11,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:19:11,452 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_306f9ee4-651c-4041-bed7-bb456ce7ebc9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3589167bbf5d7f5cd80f4f92aa27b7dbe19a0217 [2020-12-01 16:19:11,706 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:19:11,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:19:11,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:19:11,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:19:11,751 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:19:11,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2020-12-01 16:19:11,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/data/40b2dd0b7/a765082e077f4b7b827e5652d999d34c/FLAG22c9818d5 [2020-12-01 16:19:12,397 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:19:12,398 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2020-12-01 16:19:12,442 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/data/40b2dd0b7/a765082e077f4b7b827e5652d999d34c/FLAG22c9818d5 [2020-12-01 16:19:12,716 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/data/40b2dd0b7/a765082e077f4b7b827e5652d999d34c [2020-12-01 16:19:12,719 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:19:12,720 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:19:12,721 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:19:12,722 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:19:12,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:19:12,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:19:12" (1/1) ... [2020-12-01 16:19:12,727 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4932d341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:12, skipping insertion in model container [2020-12-01 16:19:12,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:19:12" (1/1) ... [2020-12-01 16:19:12,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:19:12,768 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:19:13,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:19:13,085 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:19:13,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:19:13,205 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:19:13,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13 WrapperNode [2020-12-01 16:19:13,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:19:13,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:19:13,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:19:13,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:19:13,215 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,228 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,249 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:19:13,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:19:13,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:19:13,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:19:13,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:19:13,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:19:13,280 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:19:13,280 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:19:13,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:19:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:19:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:19:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 16:19:13,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:19:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 16:19:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:19:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:19:13,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:19:13,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:19:13,794 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:19:13,794 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-01 16:19:13,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:19:13 BoogieIcfgContainer [2020-12-01 16:19:13,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:19:13,797 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:19:13,797 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:19:13,807 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:19:13,807 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:19:13" (1/1) ... [2020-12-01 16:19:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:19:13,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2020-12-01 16:19:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-12-01 16:19:13,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:19:13,852 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:14,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2020-12-01 16:19:14,013 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-12-01 16:19:14,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:19:14,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:14,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:14,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2020-12-01 16:19:14,212 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-12-01 16:19:14,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:19:14,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:14,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:14,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:14,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2020-12-01 16:19:14,344 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2020-12-01 16:19:14,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:19:14,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:14,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:14,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:14,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 32 states and 40 transitions. [2020-12-01 16:19:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2020-12-01 16:19:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:19:14,532 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:14,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 44 transitions. [2020-12-01 16:19:14,824 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2020-12-01 16:19:14,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:19:14,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:14,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:15,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:15,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 37 states and 47 transitions. [2020-12-01 16:19:15,262 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2020-12-01 16:19:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 16:19:15,264 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:15,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:15,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:15,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:15,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2020-12-01 16:19:15,808 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2020-12-01 16:19:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 16:19:15,808 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:15,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 41 states and 55 transitions. [2020-12-01 16:19:16,242 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2020-12-01 16:19:16,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:19:16,242 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:16,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:16,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 51 transitions. [2020-12-01 16:19:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2020-12-01 16:19:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 16:19:16,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:16,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:16,841 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 16:19:17,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:17,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 44 states and 56 transitions. [2020-12-01 16:19:17,297 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2020-12-01 16:19:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:19:17,298 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:17,322 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:19:17,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:17,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 44 states and 54 transitions. [2020-12-01 16:19:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2020-12-01 16:19:17,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:19:17,536 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:17,661 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:19:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 46 states and 60 transitions. [2020-12-01 16:19:18,492 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 60 transitions. [2020-12-01 16:19:18,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:19:18,494 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:18,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:18,544 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-01 16:19:18,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 44 states and 53 transitions. [2020-12-01 16:19:18,823 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2020-12-01 16:19:18,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:19:18,824 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:19,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:19:20,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:20,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 46 states and 57 transitions. [2020-12-01 16:19:20,089 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2020-12-01 16:19:20,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:19:20,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:20,413 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:19:22,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:22,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 48 states and 61 transitions. [2020-12-01 16:19:22,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 61 transitions. [2020-12-01 16:19:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:19:22,190 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:22,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:22,615 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:25,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:25,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2020-12-01 16:19:25,682 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2020-12-01 16:19:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:19:25,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:25,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:26,252 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:29,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:29,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 52 states and 70 transitions. [2020-12-01 16:19:29,722 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 70 transitions. [2020-12-01 16:19:29,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:19:29,723 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:29,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:29,984 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:19:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:32,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 54 states and 73 transitions. [2020-12-01 16:19:32,587 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2020-12-01 16:19:32,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:19:32,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:34,115 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:43,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:43,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 69 states and 97 transitions. [2020-12-01 16:19:43,756 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 97 transitions. [2020-12-01 16:19:43,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:19:43,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:43,870 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:45,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:45,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 71 states and 102 transitions. [2020-12-01 16:19:45,433 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 102 transitions. [2020-12-01 16:19:45,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:19:45,433 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:45,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:47,344 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:19:51,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:19:51,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 75 states and 107 transitions. [2020-12-01 16:19:51,757 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 107 transitions. [2020-12-01 16:19:51,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:19:51,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:19:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:19:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-01 16:20:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:02,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 90 states and 138 transitions. [2020-12-01 16:20:02,666 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 138 transitions. [2020-12-01 16:20:02,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:20:02,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:03,408 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-01 16:20:09,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:09,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 98 states and 165 transitions. [2020-12-01 16:20:09,644 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 165 transitions. [2020-12-01 16:20:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:20:09,645 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 16:20:17,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:17,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 106 states and 192 transitions. [2020-12-01 16:20:17,739 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 192 transitions. [2020-12-01 16:20:17,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:20:17,740 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:18,391 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 16:20:25,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:25,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 111 states and 205 transitions. [2020-12-01 16:20:25,576 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 205 transitions. [2020-12-01 16:20:25,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:20:25,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:25,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:20:26,799 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-12-01 16:20:27,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:20:27,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 112 states and 206 transitions. [2020-12-01 16:20:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 206 transitions. [2020-12-01 16:20:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-01 16:20:27,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:20:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:20:27,891 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:20:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:20:27,908 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:20:27,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:20:27,980 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:20:28,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:20:28,005 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:20:28,749 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 27 iterations. [2020-12-01 16:20:28,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:20:28 ImpRootNode [2020-12-01 16:20:28,792 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:20:28,792 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:20:28,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:20:28,793 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:20:28,793 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:19:13" (3/4) ... [2020-12-01 16:20:28,795 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:20:28,859 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_306f9ee4-651c-4041-bed7-bb456ce7ebc9/bin/ukojak/witness.graphml [2020-12-01 16:20:28,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:20:28,864 INFO L168 Benchmark]: Toolchain (without parser) took 76143.22 ms. Allocated memory was 92.3 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 72.1 MB in the beginning and 1.0 GB in the end (delta: -975.3 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,866 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 75.5 MB. Free memory was 46.3 MB in the beginning and 46.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:20:28,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 484.90 ms. Allocated memory is still 92.3 MB. Free memory was 71.9 MB in the beginning and 49.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,873 INFO L168 Benchmark]: Boogie Preprocessor took 29.35 ms. Allocated memory is still 92.3 MB. Free memory was 47.7 MB in the beginning and 46.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:20:28,874 INFO L168 Benchmark]: RCFGBuilder took 516.32 ms. Allocated memory is still 92.3 MB. Free memory was 46.1 MB in the beginning and 52.1 MB in the end (delta: -6.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,875 INFO L168 Benchmark]: CodeCheck took 74995.00 ms. Allocated memory was 92.3 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 52.1 MB in the beginning and 1.1 GB in the end (delta: -998.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,875 INFO L168 Benchmark]: Witness Printer took 70.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:20:28,878 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, 32 locations, 11 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 74.9s, OverallIterations: 27, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 528482312 SDtfs, 82011306 SDslu, 10485760 SDs, 0 SdLazy, 873584314 SolverSat, 324406340 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3808 GetRequests, 3269 SyntacticMatches, 59 SemanticMatches, 480 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93986 ImplicationChecksByTransitivity, 70.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.9s InterpolantComputationTime, 438 NumberOfCodeBlocks, 438 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 82799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 13 PerfectInterpolantSequences, 138/268 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L603] int len = 2; [L604] len < 32 && __VERIFIER_nondet_int() [L604] len < 32 && __VERIFIER_nondet_int() [L604] COND FALSE !(len < 32 && __VERIFIER_nondet_int()) [L575] SLL head = ((void *)0); [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) [L581] new_head->next = head [L582] head = new_head [L583] len-- [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) [L581] new_head->next = head [L582] head = new_head [L583] len-- [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) [L581] new_head->next = head [L582] head = new_head [L583] len-- [L576] COND FALSE !(len > 0) [L585] return head; [L607] SLL s = sll_create(len + 1); [L588] int len = 0; [L589] COND TRUE \read(head) [L590] len++ [L591] EXPR head->next [L591] head = head->next [L589] COND TRUE \read(head) [L590] len++ [L591] EXPR head->next [L591] head = head->next [L589] COND TRUE \read(head) [L590] len++ [L591] EXPR head->next [L591] head = head->next [L589] COND FALSE !(\read(head)) [L593] return len; [L608] COND TRUE len != sll_length(s) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sll_length_check-1.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 75.5 MB. Free memory was 46.3 MB in the beginning and 46.2 MB in the end (delta: 75.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 484.90 ms. Allocated memory is still 92.3 MB. Free memory was 71.9 MB in the beginning and 49.7 MB in the end (delta: 22.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.22 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 47.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.35 ms. Allocated memory is still 92.3 MB. Free memory was 47.7 MB in the beginning and 46.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 516.32 ms. Allocated memory is still 92.3 MB. Free memory was 46.1 MB in the beginning and 52.1 MB in the end (delta: -6.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * CodeCheck took 74995.00 ms. Allocated memory was 92.3 MB in the beginning and 1.1 GB in the end (delta: 1.0 GB). Free memory was 52.1 MB in the beginning and 1.1 GB in the end (delta: -998.5 MB). Peak memory consumption was 42.7 MB. Max. memory is 16.1 GB. * Witness Printer took 70.36 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...