./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i --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_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i -s /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/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 cbc7a588e1092d0916f2339b4d4b9e0fa8415335 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-free) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:41:38,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:41:38,213 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:41:38,280 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:41:38,290 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:41:38,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:41:38,294 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:41:38,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:41:38,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:41:38,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:41:38,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:41:38,322 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:41:38,323 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:41:38,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:41:38,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:41:38,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:41:38,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:41:38,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:41:38,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:41:38,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:41:38,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:41:38,357 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:41:38,360 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:41:38,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:41:38,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:41:38,368 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:41:38,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:41:38,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:41:38,371 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:41:38,372 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:41:38,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:41:38,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:41:38,376 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:41:38,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:41:38,379 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:41:38,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:41:38,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:41:38,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:41:38,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:41:38,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:41:38,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:41:38,386 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:41:38,427 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:41:38,428 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:41:38,429 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:41:38,430 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:41:38,430 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:41:38,430 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:41:38,430 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:41:38,431 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:41:38,431 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:41:38,431 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:41:38,432 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:41:38,432 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:41:38,433 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:41:38,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:41:38,433 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:41:38,433 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:41:38,434 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:41:38,434 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:41:38,434 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:41:38,434 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:41:38,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:38,435 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:41:38,435 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:41:38,435 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:41:38,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:41:38,436 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_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbc7a588e1092d0916f2339b4d4b9e0fa8415335 [2020-11-28 04:41:38,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:41:38,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:41:38,735 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:41:38,736 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:41:38,737 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:41:38,738 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/../../sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-11-28 04:41:38,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/data/91f99419c/bd6bdf144d924fb6af8ab674ccbbd48a/FLAGe5d443991 [2020-11-28 04:41:39,312 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:41:39,313 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/sv-benchmarks/c/list-ext-properties/960521-1_1-3.i [2020-11-28 04:41:39,327 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/data/91f99419c/bd6bdf144d924fb6af8ab674ccbbd48a/FLAGe5d443991 [2020-11-28 04:41:39,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/data/91f99419c/bd6bdf144d924fb6af8ab674ccbbd48a [2020-11-28 04:41:39,639 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:41:39,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:41:39,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:39,644 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:41:39,647 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:41:39,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:39" (1/1) ... [2020-11-28 04:41:39,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c398241 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:39, skipping insertion in model container [2020-11-28 04:41:39,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:39" (1/1) ... [2020-11-28 04:41:39,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:41:39,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:41:40,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:40,024 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:41:40,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:41:40,118 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:41:40,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40 WrapperNode [2020-11-28 04:41:40,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:41:40,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:40,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:41:40,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:41:40,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,162 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:41:40,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:41:40,163 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:41:40,163 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:41:40,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,181 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,187 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,190 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:41:40,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:41:40,191 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:41:40,191 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:41:40,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:41:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:41:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:41:40,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:41:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 04:41:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:41:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 04:41:40,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:41:40,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:41:40,850 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:41:40,850 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-28 04:41:40,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40 BoogieIcfgContainer [2020-11-28 04:41:40,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:41:40,853 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:41:40,853 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:41:40,870 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:41:40,870 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40" (1/1) ... [2020-11-28 04:41:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:41:40,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:40,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 47 states and 51 transitions. [2020-11-28 04:41:40,916 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 51 transitions. [2020-11-28 04:41:40,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 04:41:40,919 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 47 states and 50 transitions. [2020-11-28 04:41:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2020-11-28 04:41:41,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:41:41,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 46 states and 49 transitions. [2020-11-28 04:41:41,166 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2020-11-28 04:41:41,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:41:41,166 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 50 states and 56 transitions. [2020-11-28 04:41:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 56 transitions. [2020-11-28 04:41:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:41:41,471 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:41,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:41,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2020-11-28 04:41:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2020-11-28 04:41:41,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:41:41,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:41,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:41,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:42,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:42,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 54 states and 64 transitions. [2020-11-28 04:41:42,381 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 64 transitions. [2020-11-28 04:41:42,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:41:42,383 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:42,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:42,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 49 states and 54 transitions. [2020-11-28 04:41:42,719 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 54 transitions. [2020-11-28 04:41:42,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:41:42,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:42,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:43,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:43,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 51 states and 56 transitions. [2020-11-28 04:41:43,368 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2020-11-28 04:41:43,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:41:43,368 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:43,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:43,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:43,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 53 states and 59 transitions. [2020-11-28 04:41:43,744 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 59 transitions. [2020-11-28 04:41:43,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:43,745 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:43,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:43,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:44,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:44,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 56 states and 66 transitions. [2020-11-28 04:41:44,755 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2020-11-28 04:41:44,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:44,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:44,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:45,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:45,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 59 states and 73 transitions. [2020-11-28 04:41:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2020-11-28 04:41:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:45,868 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:45,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:46,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:46,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 60 states and 75 transitions. [2020-11-28 04:41:46,141 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 75 transitions. [2020-11-28 04:41:46,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:46,142 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:46,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:46,156 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-28 04:41:46,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:46,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 60 states and 74 transitions. [2020-11-28 04:41:46,622 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-11-28 04:41:46,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:41:46,623 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:46,719 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:47,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:47,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 60 states and 72 transitions. [2020-11-28 04:41:47,402 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 72 transitions. [2020-11-28 04:41:47,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-28 04:41:47,403 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:47,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:49,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:49,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 62 states and 81 transitions. [2020-11-28 04:41:49,899 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 81 transitions. [2020-11-28 04:41:49,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:41:49,899 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:49,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:50,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:51,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:51,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 67 states and 88 transitions. [2020-11-28 04:41:51,006 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 88 transitions. [2020-11-28 04:41:51,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:41:51,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:51,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:51,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:51,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:51,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 68 states and 88 transitions. [2020-11-28 04:41:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 88 transitions. [2020-11-28 04:41:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:41:51,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-28 04:41:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:51,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 69 states and 90 transitions. [2020-11-28 04:41:51,770 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 90 transitions. [2020-11-28 04:41:51,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 04:41:51,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:51,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:51,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:52,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:52,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 70 states and 91 transitions. [2020-11-28 04:41:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2020-11-28 04:41:52,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:41:52,486 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:54,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:54,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 76 states and 100 transitions. [2020-11-28 04:41:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 100 transitions. [2020-11-28 04:41:54,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:41:54,584 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:54,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:54,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:41:54,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:54,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 78 states and 101 transitions. [2020-11-28 04:41:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2020-11-28 04:41:54,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 04:41:54,653 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:54,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:55,070 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:57,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 87 states and 114 transitions. [2020-11-28 04:41:57,340 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 114 transitions. [2020-11-28 04:41:57,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:41:57,341 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:58,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:58,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 93 states and 123 transitions. [2020-11-28 04:41:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2020-11-28 04:41:58,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:41:58,739 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:58,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:58,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:41:58,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:58,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 96 states and 126 transitions. [2020-11-28 04:41:58,782 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 126 transitions. [2020-11-28 04:41:58,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:41:58,783 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:41:59,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:41:59,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 96 states and 124 transitions. [2020-11-28 04:41:59,707 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 124 transitions. [2020-11-28 04:41:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:41:59,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:41:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:41:59,738 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:42:00,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:00,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 97 states and 125 transitions. [2020-11-28 04:42:00,105 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 125 transitions. [2020-11-28 04:42:00,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:00,106 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:00,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:42:03,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:03,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 102 states and 140 transitions. [2020-11-28 04:42:03,469 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 140 transitions. [2020-11-28 04:42:03,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:03,470 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:03,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:42:04,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 103 states and 141 transitions. [2020-11-28 04:42:04,057 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 141 transitions. [2020-11-28 04:42:04,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:04,057 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-28 04:42:04,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 104 states and 141 transitions. [2020-11-28 04:42:04,455 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 141 transitions. [2020-11-28 04:42:04,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-28 04:42:04,456 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:04,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:42:04,475 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-28 04:42:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:42:05,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 105 states and 142 transitions. [2020-11-28 04:42:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 142 transitions. [2020-11-28 04:42:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-28 04:42:05,124 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:42:05,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:05,138 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:05,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:05,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:05,216 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:42:05,241 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:42:05,281 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 30 iterations. [2020-11-28 04:42:05,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:42:05 ImpRootNode [2020-11-28 04:42:05,352 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:42:05,352 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:42:05,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:42:05,353 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:42:05,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:40" (3/4) ... [2020-11-28 04:42:05,355 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:42:05,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a8fd4e3-22ab-4c6d-b45b-de59d7986ced/bin/ukojak/witness.graphml [2020-11-28 04:42:05,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:42:05,403 INFO L168 Benchmark]: Toolchain (without parser) took 25762.01 ms. Allocated memory was 88.1 MB in the beginning and 327.2 MB in the end (delta: 239.1 MB). Free memory was 55.9 MB in the beginning and 253.6 MB in the end (delta: -197.7 MB). Peak memory consumption was 42.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,404 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 47.5 MB in the beginning and 47.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:42:05,405 INFO L168 Benchmark]: CACSL2BoogieTranslator took 475.15 ms. Allocated memory is still 88.1 MB. Free memory was 55.7 MB in the beginning and 54.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.38 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 52.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,406 INFO L168 Benchmark]: Boogie Preprocessor took 27.48 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 50.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,407 INFO L168 Benchmark]: RCFGBuilder took 661.54 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 79.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,408 INFO L168 Benchmark]: CodeCheck took 24498.98 ms. Allocated memory was 107.0 MB in the beginning and 327.2 MB in the end (delta: 220.2 MB). Free memory was 79.0 MB in the beginning and 255.7 MB in the end (delta: -176.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,409 INFO L168 Benchmark]: Witness Printer took 49.04 ms. Allocated memory is still 327.2 MB. Free memory was 255.7 MB in the beginning and 253.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:42:05,413 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, 47 locations, 21 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 24.3s, OverallIterations: 30, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -1548615680 SDtfs, 910840584 SDslu, 484558592 SDs, 0 SdLazy, 1399280800 SolverSat, 2126277748 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2741 GetRequests, 2412 SyntacticMatches, 43 SemanticMatches, 286 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35986 ImplicationChecksByTransitivity, 21.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 327 NumberOfCodeBlocks, 327 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 12641 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 20 PerfectInterpolantSequences, 48/71 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: 547]: free of unallocated memory possible free of unallocated memory possible We found a FailurePath: [L523] int *a, *b; [L524] int n; [L536] n = 1 VAL [a={0:0}, b={0:0}, n=1] [L537] COND FALSE !(__VERIFIER_nondet_int() && n < 30) [L540] a = malloc(n * sizeof(*a)) [L541] b = malloc(n * sizeof(*b)) [L542] EXPR b++ VAL [a={-7269:0}, b={10348:4}, n=1] [L542] *b++ = 0 [L528] int i; [L529] i = 0 VAL [a={-7269:0}, b={10348:4}, n=1] [L529] COND TRUE i < n VAL [a={-7269:0}, b={10348:4}, n=1] [L530] a[i] = -1 [L529] i++ VAL [a={-7269:0}, b={10348:4}, n=1] [L529] COND FALSE !(i < n) [L531] i = 0 VAL [a={-7269:0}, b={10348:4}, n=1] [L531] COND FALSE !(i < n - 1) VAL [a={-7269:0}, b={10348:4}, n=1] [L544] b[-1] VAL [a={-7269:0}, b={10348:4}, n=1] [L544] COND FALSE !(b[-1]) [L547] free(a) VAL [a={-7269:0}, b={10348:4}, n=1] [L547] free(a) VAL [a={-7269:0}, b={10348:4}, n=1] [L547] free(a) [L547] free(b) VAL [a={-7269:0}, b={10348:4}, n=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 88.1 MB. Free memory was 47.5 MB in the beginning and 47.4 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 475.15 ms. Allocated memory is still 88.1 MB. Free memory was 55.7 MB in the beginning and 54.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 42.38 ms. Allocated memory is still 88.1 MB. Free memory was 54.2 MB in the beginning and 52.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 27.48 ms. Allocated memory is still 88.1 MB. Free memory was 52.2 MB in the beginning and 50.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 661.54 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 50.9 MB in the beginning and 79.0 MB in the end (delta: -28.1 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * CodeCheck took 24498.98 ms. Allocated memory was 107.0 MB in the beginning and 327.2 MB in the end (delta: 220.2 MB). Free memory was 79.0 MB in the beginning and 255.7 MB in the end (delta: -176.7 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * Witness Printer took 49.04 ms. Allocated memory is still 327.2 MB. Free memory was 255.7 MB in the beginning and 253.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...