./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-4.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_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-4.i -s /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/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 925bf64e647f08edad293233522d90c39c43645d ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 16:51:18,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 16:51:18,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 16:51:18,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 16:51:18,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 16:51:18,331 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 16:51:18,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 16:51:18,343 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 16:51:18,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 16:51:18,346 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 16:51:18,347 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 16:51:18,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 16:51:18,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 16:51:18,350 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 16:51:18,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 16:51:18,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 16:51:18,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 16:51:18,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 16:51:18,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 16:51:18,360 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 16:51:18,362 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 16:51:18,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 16:51:18,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 16:51:18,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 16:51:18,369 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 16:51:18,370 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 16:51:18,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 16:51:18,371 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 16:51:18,372 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 16:51:18,373 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 16:51:18,373 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 16:51:18,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 16:51:18,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 16:51:18,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 16:51:18,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 16:51:18,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 16:51:18,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 16:51:18,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 16:51:18,380 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 16:51:18,381 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 16:51:18,382 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 16:51:18,383 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-12-01 16:51:18,405 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 16:51:18,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 16:51:18,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 16:51:18,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 16:51:18,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 16:51:18,411 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 16:51:18,411 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 16:51:18,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 16:51:18,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 16:51:18,412 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 16:51:18,413 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 16:51:18,413 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 16:51:18,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 16:51:18,413 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 16:51:18,414 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 16:51:18,414 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 16:51:18,414 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 16:51:18,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 16:51:18,415 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 16:51:18,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 16:51:18,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 16:51:18,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 16:51:18,416 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 16:51:18,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 16:51:18,416 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_46831266-c5ad-497f-a312-c2ce9d8e0248/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 925bf64e647f08edad293233522d90c39c43645d [2020-12-01 16:51:18,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 16:51:18,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 16:51:18,737 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 16:51:18,739 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 16:51:18,739 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 16:51:18,740 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/../../sv-benchmarks/c/heap-manipulation/tree-4.i [2020-12-01 16:51:18,826 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/data/f0d1bb744/48698fa1916a4f10a72bcb5c557b2103/FLAG795d2f1f8 [2020-12-01 16:51:19,387 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 16:51:19,387 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/sv-benchmarks/c/heap-manipulation/tree-4.i [2020-12-01 16:51:19,400 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/data/f0d1bb744/48698fa1916a4f10a72bcb5c557b2103/FLAG795d2f1f8 [2020-12-01 16:51:19,678 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/data/f0d1bb744/48698fa1916a4f10a72bcb5c557b2103 [2020-12-01 16:51:19,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 16:51:19,684 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 16:51:19,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 16:51:19,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 16:51:19,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 16:51:19,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:51:19" (1/1) ... [2020-12-01 16:51:19,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c103c10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:19, skipping insertion in model container [2020-12-01 16:51:19,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 04:51:19" (1/1) ... [2020-12-01 16:51:19,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 16:51:19,755 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 16:51:20,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:51:20,116 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 16:51:20,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 16:51:20,216 INFO L208 MainTranslator]: Completed translation [2020-12-01 16:51:20,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20 WrapperNode [2020-12-01 16:51:20,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 16:51:20,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 16:51:20,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 16:51:20,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 16:51:20,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 16:51:20,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 16:51:20,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 16:51:20,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 16:51:20,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... [2020-12-01 16:51:20,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 16:51:20,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 16:51:20,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 16:51:20,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 16:51:20,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 04:51:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/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 16:51:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 16:51:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 16:51:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 16:51:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 16:51:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 16:51:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 16:51:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 16:51:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 16:51:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 16:51:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 16:51:21,201 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 16:51:21,202 INFO L298 CfgBuilder]: Removed 33 assume(true) statements. [2020-12-01 16:51:21,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:51:21 BoogieIcfgContainer [2020-12-01 16:51:21,205 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 16:51:21,208 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 16:51:21,208 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 16:51:21,217 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 16:51:21,217 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:51:21" (1/1) ... [2020-12-01 16:51:21,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 16:51:21,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 136 states and 160 transitions. [2020-12-01 16:51:21,273 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 160 transitions. [2020-12-01 16:51:21,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:51:21,276 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,427 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 16:51:21,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 135 states and 158 transitions. [2020-12-01 16:51:21,453 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions. [2020-12-01 16:51:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 16:51:21,453 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,507 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 16:51:21,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 134 states and 157 transitions. [2020-12-01 16:51:21,581 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 157 transitions. [2020-12-01 16:51:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:51:21,582 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,631 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 16:51:21,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 133 states and 156 transitions. [2020-12-01 16:51:21,657 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-12-01 16:51:21,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:51:21,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,740 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 16:51:21,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 132 states and 155 transitions. [2020-12-01 16:51:21,758 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-12-01 16:51:21,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 16:51:21,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,808 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 16:51:21,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 135 states and 159 transitions. [2020-12-01 16:51:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 159 transitions. [2020-12-01 16:51:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 16:51:21,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:21,896 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 16:51:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:21,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 136 states and 161 transitions. [2020-12-01 16:51:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 161 transitions. [2020-12-01 16:51:21,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:51:21,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:21,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:22,009 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 16:51:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:22,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 139 states and 164 transitions. [2020-12-01 16:51:22,278 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-12-01 16:51:22,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 16:51:22,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:22,341 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 16:51:22,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:22,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 145 states and 175 transitions. [2020-12-01 16:51:22,591 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 175 transitions. [2020-12-01 16:51:22,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:51:22,593 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:22,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:22,641 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 16:51:22,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:22,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 147 states and 178 transitions. [2020-12-01 16:51:22,800 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 178 transitions. [2020-12-01 16:51:22,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 16:51:22,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:22,849 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 16:51:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:22,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 149 states and 183 transitions. [2020-12-01 16:51:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 183 transitions. [2020-12-01 16:51:22,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:51:22,964 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:22,977 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 16:51:22,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:22,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 149 states and 181 transitions. [2020-12-01 16:51:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 181 transitions. [2020-12-01 16:51:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 16:51:22,984 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:23,099 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 16:51:23,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:23,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 150 states and 181 transitions. [2020-12-01 16:51:23,433 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 181 transitions. [2020-12-01 16:51:23,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:51:23,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:23,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:23,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 149 states and 180 transitions. [2020-12-01 16:51:23,677 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 180 transitions. [2020-12-01 16:51:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 16:51:23,677 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:23,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:23,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:24,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:24,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 153 states and 190 transitions. [2020-12-01 16:51:24,273 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 190 transitions. [2020-12-01 16:51:24,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:51:24,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:24,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:24,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:24,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:24,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 155 states and 192 transitions. [2020-12-01 16:51:24,749 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 192 transitions. [2020-12-01 16:51:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:51:24,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:24,864 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:25,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:25,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 159 states and 197 transitions. [2020-12-01 16:51:25,543 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 197 transitions. [2020-12-01 16:51:25,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:51:25,543 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:25,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:25,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:26,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:26,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 165 states and 209 transitions. [2020-12-01 16:51:26,647 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 209 transitions. [2020-12-01 16:51:26,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:51:26,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:26,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:26,666 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:26,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 167 states and 213 transitions. [2020-12-01 16:51:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 213 transitions. [2020-12-01 16:51:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 16:51:26,698 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:27,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 171 states and 223 transitions. [2020-12-01 16:51:27,504 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 223 transitions. [2020-12-01 16:51:27,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:51:27,505 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:27,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:27,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 170 states and 222 transitions. [2020-12-01 16:51:27,537 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 222 transitions. [2020-12-01 16:51:27,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:51:27,538 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:27,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:27,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:28,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 171 states and 224 transitions. [2020-12-01 16:51:28,004 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 224 transitions. [2020-12-01 16:51:28,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 16:51:28,005 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:28,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:28,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:28,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 171 states and 221 transitions. [2020-12-01 16:51:28,069 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 221 transitions. [2020-12-01 16:51:28,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:51:28,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:28,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:28,098 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:28,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:28,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 150 states and 179 transitions. [2020-12-01 16:51:28,653 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2020-12-01 16:51:28,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:51:28,654 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:28,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:51:29,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:29,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 146 states and 175 transitions. [2020-12-01 16:51:29,108 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 175 transitions. [2020-12-01 16:51:29,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:51:29,109 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:29,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:30,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:30,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 148 states and 179 transitions. [2020-12-01 16:51:30,179 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 179 transitions. [2020-12-01 16:51:30,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 16:51:30,179 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:30,474 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:31,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:31,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 150 states and 183 transitions. [2020-12-01 16:51:31,656 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 183 transitions. [2020-12-01 16:51:31,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:51:31,656 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:31,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:31,680 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:32,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:32,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 151 states and 185 transitions. [2020-12-01 16:51:32,029 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 185 transitions. [2020-12-01 16:51:32,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 16:51:32,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:32,054 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 153 states and 188 transitions. [2020-12-01 16:51:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 188 transitions. [2020-12-01 16:51:32,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:51:32,555 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:32,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:33,072 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:35,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:35,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 158 states and 197 transitions. [2020-12-01 16:51:35,231 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 197 transitions. [2020-12-01 16:51:35,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 16:51:35,231 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:35,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:35,798 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:37,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:37,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 160 states and 201 transitions. [2020-12-01 16:51:37,615 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 201 transitions. [2020-12-01 16:51:37,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:51:37,615 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:37,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:38,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:38,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 161 states and 203 transitions. [2020-12-01 16:51:38,019 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 203 transitions. [2020-12-01 16:51:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 16:51:38,020 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:38,045 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:38,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:38,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 163 states and 206 transitions. [2020-12-01 16:51:38,458 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 206 transitions. [2020-12-01 16:51:38,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:51:38,459 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:38,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:40,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:40,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 167 states and 215 transitions. [2020-12-01 16:51:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 215 transitions. [2020-12-01 16:51:40,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 16:51:40,796 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:41,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:42,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 169 states and 220 transitions. [2020-12-01 16:51:42,989 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 220 transitions. [2020-12-01 16:51:42,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:51:42,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:43,010 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:43,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:43,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 170 states and 222 transitions. [2020-12-01 16:51:43,443 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 222 transitions. [2020-12-01 16:51:43,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 16:51:43,443 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:43,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 172 states and 225 transitions. [2020-12-01 16:51:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 225 transitions. [2020-12-01 16:51:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:51:43,966 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:44,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 167 states and 217 transitions. [2020-12-01 16:51:44,763 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 217 transitions. [2020-12-01 16:51:44,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:51:44,763 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:47,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:47,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 171 states and 226 transitions. [2020-12-01 16:51:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 226 transitions. [2020-12-01 16:51:47,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-01 16:51:47,135 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:47,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:49,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:49,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 173 states and 231 transitions. [2020-12-01 16:51:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 231 transitions. [2020-12-01 16:51:49,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:51:49,609 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:49,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 16:51:50,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 174 states and 233 transitions. [2020-12-01 16:51:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 233 transitions. [2020-12-01 16:51:50,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-01 16:51:50,158 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:50,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:51:54,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:51:54,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 183 states and 251 transitions. [2020-12-01 16:51:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 251 transitions. [2020-12-01 16:51:54,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-01 16:51:54,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:51:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:51:57,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 200 states and 279 transitions. [2020-12-01 16:52:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 279 transitions. [2020-12-01 16:52:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-01 16:52:08,644 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:08,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:52:20,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:20,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 213 states and 303 transitions. [2020-12-01 16:52:20,607 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 303 transitions. [2020-12-01 16:52:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-01 16:52:20,607 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:20,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:52:22,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:22,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 216 states and 307 transitions. [2020-12-01 16:52:22,977 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 307 transitions. [2020-12-01 16:52:22,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:52:22,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:24,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:38,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 233 states and 341 transitions. [2020-12-01 16:52:38,525 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 341 transitions. [2020-12-01 16:52:38,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:52:38,525 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:38,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:56,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:56,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 250 states and 375 transitions. [2020-12-01 16:52:56,290 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 375 transitions. [2020-12-01 16:52:56,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:52:56,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:52:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:52:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 252 states and 378 transitions. [2020-12-01 16:52:58,862 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 378 transitions. [2020-12-01 16:52:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-12-01 16:52:58,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:52:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:52:58,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:53:01,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:01,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 254 states and 381 transitions. [2020-12-01 16:53:01,397 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 381 transitions. [2020-12-01 16:53:01,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-01 16:53:01,397 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:01,431 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:53:02,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 255 states and 381 transitions. [2020-12-01 16:53:02,213 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 381 transitions. [2020-12-01 16:53:02,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:53:02,214 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:02,236 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:53:02,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:02,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 254 states and 378 transitions. [2020-12-01 16:53:02,261 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 378 transitions. [2020-12-01 16:53:02,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:53:02,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:02,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:03,783 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:53:06,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:06,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 256 states and 382 transitions. [2020-12-01 16:53:06,743 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 382 transitions. [2020-12-01 16:53:06,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:53:06,744 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:06,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:53:06,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 257 states and 382 transitions. [2020-12-01 16:53:06,786 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 382 transitions. [2020-12-01 16:53:06,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:53:06,787 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:08,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:53:18,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:18,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 265 states and 396 transitions. [2020-12-01 16:53:18,070 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 396 transitions. [2020-12-01 16:53:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-01 16:53:18,070 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:53:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 267 states and 399 transitions. [2020-12-01 16:53:21,101 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 399 transitions. [2020-12-01 16:53:21,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:53:21,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:53:43,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:53:43,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 277 states and 419 transitions. [2020-12-01 16:53:43,521 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 419 transitions. [2020-12-01 16:53:43,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:53:43,522 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:53:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:53:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:09,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:09,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 287 states and 441 transitions. [2020-12-01 16:54:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 441 transitions. [2020-12-01 16:54:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:54:09,275 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:09,332 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:13,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:13,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 289 states and 444 transitions. [2020-12-01 16:54:13,215 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 444 transitions. [2020-12-01 16:54:13,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-01 16:54:13,215 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:13,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:13,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:16,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:16,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 291 states and 447 transitions. [2020-12-01 16:54:16,863 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 447 transitions. [2020-12-01 16:54:16,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:54:16,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:16,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:54:23,352 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:54:41,228 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2020-12-01 16:54:42,470 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2020-12-01 16:54:58,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:54:58,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 302 states and 468 transitions. [2020-12-01 16:54:58,901 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 468 transitions. [2020-12-01 16:54:58,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-01 16:54:58,902 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:54:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:55:08,036 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:55:25,982 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2020-12-01 16:55:28,300 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-01 16:55:29,960 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2020-12-01 16:55:34,230 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2020-12-01 16:55:38,077 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2020-12-01 16:55:47,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:55:47,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 313 states and 490 transitions. [2020-12-01 16:55:47,103 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 490 transitions. [2020-12-01 16:55:47,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:55:47,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:55:47,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:55:47,125 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:55:47,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:55:47,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 312 states and 488 transitions. [2020-12-01 16:55:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 488 transitions. [2020-12-01 16:55:47,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:55:47,177 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:55:47,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:55:48,178 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-01 16:55:52,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:55:52,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 315 states and 499 transitions. [2020-12-01 16:55:52,031 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 499 transitions. [2020-12-01 16:55:52,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:55:52,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:55:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:56:01,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:56:09,583 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2020-12-01 16:56:11,272 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-01 16:56:14,098 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-12-01 16:56:14,631 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-01 16:56:16,138 WARN L197 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 16:56:19,034 WARN L197 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-12-01 16:56:20,589 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2020-12-01 16:56:24,912 WARN L197 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2020-12-01 16:56:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:56:49,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 328 states and 524 transitions. [2020-12-01 16:56:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 524 transitions. [2020-12-01 16:56:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-01 16:56:49,724 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:56:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:56:49,782 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:56:56,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:56:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 330 states and 527 transitions. [2020-12-01 16:56:56,223 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 527 transitions. [2020-12-01 16:56:56,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:56:56,223 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:56:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:57:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:57:21,448 WARN L197 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-01 16:57:26,421 WARN L197 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-01 16:57:29,585 WARN L197 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2020-12-01 16:57:31,556 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2020-12-01 16:57:36,851 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-01 16:58:12,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:58:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 342 states and 551 transitions. [2020-12-01 16:58:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 551 transitions. [2020-12-01 16:58:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:58:12,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:58:12,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:58:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-01 16:58:19,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:58:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 344 states and 553 transitions. [2020-12-01 16:58:19,896 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 553 transitions. [2020-12-01 16:58:19,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:58:19,896 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:58:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:58:20,049 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:58:32,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:58:32,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 348 states and 557 transitions. [2020-12-01 16:58:32,439 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 557 transitions. [2020-12-01 16:58:32,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-01 16:58:32,440 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:58:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 16:58:32,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 16:58:40,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 16:58:40,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 350 states and 560 transitions. [2020-12-01 16:58:40,641 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 560 transitions. [2020-12-01 16:58:40,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-01 16:58:40,641 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 16:58:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:58:40,661 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:58:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:58:40,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:58:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:58:41,148 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:58:41,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 16:58:41,634 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 16:58:42,866 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 69 iterations. [2020-12-01 16:58:42,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 04:58:42 ImpRootNode [2020-12-01 16:58:42,933 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 16:58:42,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 16:58:42,936 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 16:58:42,936 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 16:58:42,937 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 04:51:21" (3/4) ... [2020-12-01 16:58:42,939 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 16:58:43,017 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_46831266-c5ad-497f-a312-c2ce9d8e0248/bin/ukojak/witness.graphml [2020-12-01 16:58:43,017 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 16:58:43,022 INFO L168 Benchmark]: Toolchain (without parser) took 443333.95 ms. Allocated memory was 134.2 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 99.4 MB in the beginning and 698.2 MB in the end (delta: -598.8 MB). Peak memory consumption was 768.5 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,023 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 16:58:43,026 INFO L168 Benchmark]: CACSL2BoogieTranslator took 529.04 ms. Allocated memory is still 134.2 MB. Free memory was 99.4 MB in the beginning and 95.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,027 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.15 ms. Allocated memory is still 134.2 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,028 INFO L168 Benchmark]: Boogie Preprocessor took 37.10 ms. Allocated memory is still 134.2 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,029 INFO L168 Benchmark]: RCFGBuilder took 901.18 ms. Allocated memory is still 134.2 MB. Free memory was 91.6 MB in the beginning and 105.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,029 INFO L168 Benchmark]: CodeCheck took 441724.89 ms. Allocated memory was 134.2 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 105.0 MB in the beginning and 702.4 MB in the end (delta: -597.4 MB). Peak memory consumption was 769.8 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,030 INFO L168 Benchmark]: Witness Printer took 84.04 ms. Allocated memory is still 1.5 GB. Free memory was 702.4 MB in the beginning and 698.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 16:58:43,034 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, 136 locations, 67 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 441.6s, OverallIterations: 69, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41420704 SDtfs, -2039310424 SDslu, -1065621116 SDs, 0 SdLazy, -2092003396 SolverSat, 23481292 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12877 GetRequests, 11512 SyntacticMatches, 319 SemanticMatches, 1046 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 527838 ImplicationChecksByTransitivity, 431.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 69.1s InterpolantComputationTime, 1470 NumberOfCodeBlocks, 1470 NumberOfCodeBlocksAsserted, 69 NumberOfCheckSat, 1364 ConstructedInterpolants, 0 QuantifiedInterpolants, 299272 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 68 InterpolantComputations, 48 PerfectInterpolantSequences, 149/185 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: [L585] struct node *nodelast = ((void *)0); [L586] struct node *node = ((void *)0); [L587] COND TRUE __VERIFIER_nondet_int() [L588] node = malloc(sizeof *node) [L589] COND FALSE !(!node) [L591] node->left = ((void *)0) [L592] node->right = nodelast [L593] COND FALSE !(\read(*nodelast)) [L595] int value = __VERIFIER_nondet_int(); [L596] node->value = value [L597] nodelast = node [L587] COND FALSE !(__VERIFIER_nondet_int()) [L599] COND TRUE node != ((void *)0) [L600] node->parent = ((void *)0) [L601] COND TRUE node != ((void *)0) [L602] node->left = malloc(sizeof *node) [L603] COND FALSE !(!node) [L605] EXPR node->left [L605] node->left->left = ((void *)0) [L606] EXPR node->left [L606] node->left->right = ((void *)0) [L607] EXPR node->left [L607] node->left->value = 42 [L608] EXPR node->left [L608] node->left->parent = node [L609] EXPR node->right [L609] node = node->right [L601] COND FALSE !(node != ((void *)0)) [L611] return nodelast; [L632] struct node *data = create_tree(); [L633] COND FALSE !(!data) [L575] COND FALSE !(!(node)) [L576] COND TRUE node != ((void *)0) [L577] node->left [L577] COND TRUE node->left [L578] EXPR node->left [L578] EXPR node->left->value [L578] COND FALSE !(!(node->left->value == 42)) [L579] EXPR node->value [L579] COND TRUE !(node->value) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "tree-4.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 73.4 MB. Free memory was 32.1 MB in the beginning and 32.0 MB in the end (delta: 63.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 529.04 ms. Allocated memory is still 134.2 MB. Free memory was 99.4 MB in the beginning and 95.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 50.15 ms. Allocated memory is still 134.2 MB. Free memory was 95.8 MB in the beginning and 93.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.10 ms. Allocated memory is still 134.2 MB. Free memory was 93.7 MB in the beginning and 91.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 901.18 ms. Allocated memory is still 134.2 MB. Free memory was 91.6 MB in the beginning and 105.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 62.2 MB. Max. memory is 16.1 GB. * CodeCheck took 441724.89 ms. Allocated memory was 134.2 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 105.0 MB in the beginning and 702.4 MB in the end (delta: -597.4 MB). Peak memory consumption was 769.8 MB. Max. memory is 16.1 GB. * Witness Printer took 84.04 ms. Allocated memory is still 1.5 GB. Free memory was 702.4 MB in the beginning and 698.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...