./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/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 9ee3fbac20f2e3901a6c722d8c87f09ca9b3135c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-a4ecdab [2020-11-29 22:10:31,138 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 22:10:31,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 22:10:31,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 22:10:31,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 22:10:31,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 22:10:31,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 22:10:31,194 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 22:10:31,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 22:10:31,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 22:10:31,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 22:10:31,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 22:10:31,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 22:10:31,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 22:10:31,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 22:10:31,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 22:10:31,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 22:10:31,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 22:10:31,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 22:10:31,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 22:10:31,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 22:10:31,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 22:10:31,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 22:10:31,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 22:10:31,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 22:10:31,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 22:10:31,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 22:10:31,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 22:10:31,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 22:10:31,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 22:10:31,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 22:10:31,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 22:10:31,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 22:10:31,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 22:10:31,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 22:10:31,231 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 22:10:31,232 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 22:10:31,232 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 22:10:31,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 22:10:31,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 22:10:31,237 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 22:10:31,238 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-11-29 22:10:31,263 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 22:10:31,264 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 22:10:31,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 22:10:31,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 22:10:31,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 22:10:31,266 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 22:10:31,266 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 22:10:31,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 22:10:31,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 22:10:31,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 22:10:31,267 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-29 22:10:31,267 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-29 22:10:31,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 22:10:31,268 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 22:10:31,268 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 22:10:31,268 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-29 22:10:31,268 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-29 22:10:31,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 22:10:31,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 22:10:31,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-29 22:10:31,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 22:10:31,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 22:10:31,270 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-29 22:10:31,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 22:10:31,270 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_21782bb4-9da1-4525-9ec8-a8a8429a1eae/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ee3fbac20f2e3901a6c722d8c87f09ca9b3135c [2020-11-29 22:10:31,502 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 22:10:31,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 22:10:31,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 22:10:31,539 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 22:10:31,540 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 22:10:31,541 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/../../sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2020-11-29 22:10:31,641 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/data/a709780b4/28006ec8bd1047028a2342516cc33f30/FLAGfe4debab6 [2020-11-29 22:10:32,134 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 22:10:32,134 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/sv-benchmarks/c/list-ext3-properties/sll_nondet_insert-1.i [2020-11-29 22:10:32,155 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/data/a709780b4/28006ec8bd1047028a2342516cc33f30/FLAGfe4debab6 [2020-11-29 22:10:32,462 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/data/a709780b4/28006ec8bd1047028a2342516cc33f30 [2020-11-29 22:10:32,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 22:10:32,466 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 22:10:32,472 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 22:10:32,472 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 22:10:32,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 22:10:32,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:10:32" (1/1) ... [2020-11-29 22:10:32,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baaba8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:32, skipping insertion in model container [2020-11-29 22:10:32,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 10:10:32" (1/1) ... [2020-11-29 22:10:32,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 22:10:32,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 22:10:32,915 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:32,928 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 22:10:32,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 22:10:33,034 INFO L208 MainTranslator]: Completed translation [2020-11-29 22:10:33,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33 WrapperNode [2020-11-29 22:10:33,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 22:10:33,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:33,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 22:10:33,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 22:10:33,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,058 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 22:10:33,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 22:10:33,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 22:10:33,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 22:10:33,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,098 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,107 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,112 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... [2020-11-29 22:10:33,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 22:10:33,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 22:10:33,119 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 22:10:33,119 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 22:10:33,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 10:10:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/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 [2020-11-29 22:10:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-29 22:10:33,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-29 22:10:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 22:10:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-29 22:10:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 22:10:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-11-29 22:10:33,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 22:10:33,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 22:10:33,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 22:10:34,029 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 22:10:34,029 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-11-29 22:10:34,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:34 BoogieIcfgContainer [2020-11-29 22:10:34,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 22:10:34,034 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-29 22:10:34,035 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-29 22:10:34,046 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-29 22:10:34,046 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:34" (1/1) ... [2020-11-29 22:10:34,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 22:10:34,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:34,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 69 states and 87 transitions. [2020-11-29 22:10:34,090 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 87 transitions. [2020-11-29 22:10:34,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 22:10:34,093 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:34,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:34,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:34,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 69 states and 85 transitions. [2020-11-29 22:10:34,215 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 85 transitions. [2020-11-29 22:10:34,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 22:10:34,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:34,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:34,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 68 states and 84 transitions. [2020-11-29 22:10:34,344 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 84 transitions. [2020-11-29 22:10:34,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-29 22:10:34,344 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:34,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:34,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 67 states and 83 transitions. [2020-11-29 22:10:34,519 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2020-11-29 22:10:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 22:10:34,519 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:34,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:34,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:34,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 72 states and 89 transitions. [2020-11-29 22:10:34,728 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2020-11-29 22:10:34,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:10:34,729 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:34,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:10:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 81 states and 103 transitions. [2020-11-29 22:10:35,094 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 103 transitions. [2020-11-29 22:10:35,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 22:10:35,095 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:35,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:35,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 83 states and 105 transitions. [2020-11-29 22:10:35,735 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 105 transitions. [2020-11-29 22:10:35,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:10:35,738 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:35,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:35,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:36,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:36,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 87 states and 113 transitions. [2020-11-29 22:10:36,658 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2020-11-29 22:10:36,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-29 22:10:36,659 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:36,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:36,684 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:37,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:37,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 89 states and 114 transitions. [2020-11-29 22:10:37,013 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 114 transitions. [2020-11-29 22:10:37,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 22:10:37,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:37,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:37,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:37,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 89 states and 113 transitions. [2020-11-29 22:10:37,481 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2020-11-29 22:10:37,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 22:10:37,482 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:37,713 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:10:39,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:39,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 106 states and 145 transitions. [2020-11-29 22:10:39,841 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-11-29 22:10:39,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-11-29 22:10:39,842 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:39,969 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:10:40,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:40,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 110 states and 152 transitions. [2020-11-29 22:10:40,616 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 152 transitions. [2020-11-29 22:10:40,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:10:40,617 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:40,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:40,970 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:10:42,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:42,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 115 states and 162 transitions. [2020-11-29 22:10:42,153 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 162 transitions. [2020-11-29 22:10:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:10:42,154 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:42,478 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:10:44,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:44,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 120 states and 174 transitions. [2020-11-29 22:10:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 174 transitions. [2020-11-29 22:10:44,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-11-29 22:10:44,489 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:44,518 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:45,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:45,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 124 states and 182 transitions. [2020-11-29 22:10:45,457 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2020-11-29 22:10:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:10:45,458 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:45,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:10:48,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:48,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 128 states and 189 transitions. [2020-11-29 22:10:48,761 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 189 transitions. [2020-11-29 22:10:48,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-29 22:10:48,762 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:48,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:48,782 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:10:48,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:48,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 128 states and 188 transitions. [2020-11-29 22:10:48,789 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 188 transitions. [2020-11-29 22:10:48,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:10:48,790 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:48,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:49,565 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:10:54,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:10:54,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 141 states and 208 transitions. [2020-11-29 22:10:54,960 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 208 transitions. [2020-11-29 22:10:54,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:10:54,960 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:10:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:10:55,506 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:11:00,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:00,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 154 states and 227 transitions. [2020-11-29 22:11:00,659 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 227 transitions. [2020-11-29 22:11:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-11-29 22:11:00,660 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:00,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:01,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:11:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 159 states and 236 transitions. [2020-11-29 22:11:04,238 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 236 transitions. [2020-11-29 22:11:04,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:11:04,239 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:04,285 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 22:11:06,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:06,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 164 states and 249 transitions. [2020-11-29 22:11:06,180 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 249 transitions. [2020-11-29 22:11:06,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-11-29 22:11:06,180 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:06,555 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-29 22:11:09,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:09,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 169 states and 264 transitions. [2020-11-29 22:11:09,687 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 264 transitions. [2020-11-29 22:11:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:11:09,688 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:09,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:11,637 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:11:30,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:30,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 191 states and 318 transitions. [2020-11-29 22:11:30,333 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 318 transitions. [2020-11-29 22:11:30,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:11:30,334 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:30,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:30,395 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:11:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:33,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 194 states and 328 transitions. [2020-11-29 22:11:33,139 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 328 transitions. [2020-11-29 22:11:33,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:11:33,140 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:33,981 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 22:11:50,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:50,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 206 states and 342 transitions. [2020-11-29 22:11:50,973 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 342 transitions. [2020-11-29 22:11:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:11:50,974 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:50,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:52,721 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:11:57,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:11:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 215 states and 357 transitions. [2020-11-29 22:11:57,717 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 357 transitions. [2020-11-29 22:11:57,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:11:57,717 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:11:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:11:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:12:02,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 220 states and 365 transitions. [2020-11-29 22:12:02,102 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 365 transitions. [2020-11-29 22:12:02,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-11-29 22:12:02,103 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:03,007 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:12:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 224 states and 374 transitions. [2020-11-29 22:12:07,526 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 374 transitions. [2020-11-29 22:12:07,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:12:07,527 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:07,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:07,548 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 22:12:09,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:09,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 227 states and 379 transitions. [2020-11-29 22:12:09,783 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 379 transitions. [2020-11-29 22:12:09,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:12:09,784 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 22:12:12,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:12,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 230 states and 386 transitions. [2020-11-29 22:12:12,192 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 386 transitions. [2020-11-29 22:12:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:12:12,192 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:12,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 22:12:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:14,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 233 states and 390 transitions. [2020-11-29 22:12:14,209 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 390 transitions. [2020-11-29 22:12:14,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:12:14,210 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 22:12:15,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:15,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 235 states and 394 transitions. [2020-11-29 22:12:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 394 transitions. [2020-11-29 22:12:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 22:12:15,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:15,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-11-29 22:12:16,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:16,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 236 states and 396 transitions. [2020-11-29 22:12:16,718 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 396 transitions. [2020-11-29 22:12:16,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:12:16,718 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:17,006 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-11-29 22:12:19,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:19,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 238 states and 398 transitions. [2020-11-29 22:12:19,293 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 398 transitions. [2020-11-29 22:12:19,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:12:19,294 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:19,332 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-29 22:12:22,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:12:22,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 240 states and 402 transitions. [2020-11-29 22:12:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 402 transitions. [2020-11-29 22:12:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:12:22,073 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:12:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:12:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:13:01,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:01,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 263 states and 450 transitions. [2020-11-29 22:13:01,742 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 450 transitions. [2020-11-29 22:13:01,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:01,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:13:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:06,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 265 states and 454 transitions. [2020-11-29 22:13:06,302 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 454 transitions. [2020-11-29 22:13:06,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:06,302 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:13:12,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:12,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 268 states and 464 transitions. [2020-11-29 22:13:12,433 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 464 transitions. [2020-11-29 22:13:12,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:12,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:12,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:12,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:13:14,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 269 states and 467 transitions. [2020-11-29 22:13:14,460 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 467 transitions. [2020-11-29 22:13:14,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:14,461 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:13:18,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:18,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 271 states and 471 transitions. [2020-11-29 22:13:18,730 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 471 transitions. [2020-11-29 22:13:18,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:18,731 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:18,755 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:13:20,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:20,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 274 states and 478 transitions. [2020-11-29 22:13:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 478 transitions. [2020-11-29 22:13:20,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:20,975 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:13:23,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:23,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 277 states and 482 transitions. [2020-11-29 22:13:23,576 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 482 transitions. [2020-11-29 22:13:23,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:23,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:23,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:23,594 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 22:13:23,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:23,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 277 states and 481 transitions. [2020-11-29 22:13:23,603 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 481 transitions. [2020-11-29 22:13:23,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:23,604 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:13:31,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:31,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 280 states and 486 transitions. [2020-11-29 22:13:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 486 transitions. [2020-11-29 22:13:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:31,025 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:31,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:13:33,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:33,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 281 states and 488 transitions. [2020-11-29 22:13:33,707 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 488 transitions. [2020-11-29 22:13:33,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:33,708 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:33,730 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-29 22:13:42,892 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-11-29 22:13:54,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:54,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 284 states and 485 transitions. [2020-11-29 22:13:54,609 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 485 transitions. [2020-11-29 22:13:54,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-11-29 22:13:54,610 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:13:54,632 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:13:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:13:59,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 490 states to 286 states and 490 transitions. [2020-11-29 22:13:59,555 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 490 transitions. [2020-11-29 22:13:59,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:13:59,556 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:13:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:00,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:14:19,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:14:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 295 states and 514 transitions. [2020-11-29 22:14:19,254 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 514 transitions. [2020-11-29 22:14:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:14:19,256 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:14:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:20,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:14:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:14:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 304 states and 543 transitions. [2020-11-29 22:14:43,741 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 543 transitions. [2020-11-29 22:14:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:14:43,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:14:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:14:44,496 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:15:07,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:07,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 312 states and 562 transitions. [2020-11-29 22:15:07,800 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 562 transitions. [2020-11-29 22:15:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:07,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:07,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:07,821 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:15:15,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:15,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 315 states and 568 transitions. [2020-11-29 22:15:15,734 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 568 transitions. [2020-11-29 22:15:15,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:15,735 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:15,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:15:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:26,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 318 states and 573 transitions. [2020-11-29 22:15:26,003 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 573 transitions. [2020-11-29 22:15:26,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:26,004 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:26,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:26,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:15:34,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:34,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 321 states and 578 transitions. [2020-11-29 22:15:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 578 transitions. [2020-11-29 22:15:34,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:34,817 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:15:38,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:38,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 322 states and 579 transitions. [2020-11-29 22:15:38,307 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 579 transitions. [2020-11-29 22:15:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:38,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:38,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:15:41,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:41,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 323 states and 581 transitions. [2020-11-29 22:15:41,368 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 581 transitions. [2020-11-29 22:15:41,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:41,369 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:41,409 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:15:48,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 325 states and 583 transitions. [2020-11-29 22:15:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 583 transitions. [2020-11-29 22:15:48,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:48,244 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:48,263 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-29 22:15:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:15:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 327 states and 585 transitions. [2020-11-29 22:15:54,985 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states and 585 transitions. [2020-11-29 22:15:54,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:15:54,985 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:15:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:15:55,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:15:55,996 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-11-29 22:16:02,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:02,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 329 states and 588 transitions. [2020-11-29 22:16:02,022 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 588 transitions. [2020-11-29 22:16:02,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:16:02,023 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:02,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:16:09,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:09,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 331 states and 590 transitions. [2020-11-29 22:16:09,698 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 590 transitions. [2020-11-29 22:16:09,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:16:09,699 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:10,934 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 22:16:15,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:15,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 334 states and 596 transitions. [2020-11-29 22:16:15,627 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 596 transitions. [2020-11-29 22:16:15,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:16:15,627 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:16,874 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 22:16:26,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 602 states to 337 states and 602 transitions. [2020-11-29 22:16:26,173 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 602 transitions. [2020-11-29 22:16:26,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:16:26,173 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:26,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:28,514 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:16:38,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:38,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 345 states and 619 transitions. [2020-11-29 22:16:38,811 INFO L276 IsEmpty]: Start isEmpty. Operand 345 states and 619 transitions. [2020-11-29 22:16:38,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-11-29 22:16:38,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:38,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:41,053 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-11-29 22:16:59,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:16:59,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 352 states and 633 transitions. [2020-11-29 22:16:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 633 transitions. [2020-11-29 22:16:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 22:16:59,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:16:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:16:59,419 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:17:03,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:17:03,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 631 states to 352 states and 631 transitions. [2020-11-29 22:17:03,392 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 631 transitions. [2020-11-29 22:17:03,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 22:17:03,392 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:17:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 22:17:07,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-29 22:17:12,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-29 22:17:12,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 353 states and 632 transitions. [2020-11-29 22:17:12,353 INFO L276 IsEmpty]: Start isEmpty. Operand 353 states and 632 transitions. [2020-11-29 22:17:12,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-29 22:17:12,354 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-29 22:17:12,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:12,366 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:12,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:12,382 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:12,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:12,499 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:12,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 22:17:12,533 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 22:17:12,613 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 65 iterations. [2020-11-29 22:17:12,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.11 10:17:12 ImpRootNode [2020-11-29 22:17:12,663 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-29 22:17:12,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 22:17:12,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 22:17:12,664 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 22:17:12,665 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 10:10:34" (3/4) ... [2020-11-29 22:17:12,666 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-29 22:17:12,787 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_21782bb4-9da1-4525-9ec8-a8a8429a1eae/bin/ukojak/witness.graphml [2020-11-29 22:17:12,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 22:17:12,802 INFO L168 Benchmark]: Toolchain (without parser) took 400335.90 ms. Allocated memory was 79.7 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 46.6 MB in the beginning and 431.7 MB in the end (delta: -385.0 MB). Peak memory consumption was 839.5 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,803 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 22:17:12,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.16 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 46.4 MB in the beginning and 59.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.89 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,805 INFO L168 Benchmark]: Boogie Preprocessor took 34.26 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 54.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,806 INFO L168 Benchmark]: RCFGBuilder took 912.52 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.9 MB in the beginning and 86.8 MB in the end (delta: -31.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,807 INFO L168 Benchmark]: CodeCheck took 398629.72 ms. Allocated memory was 117.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 86.8 MB in the beginning and 434.8 MB in the end (delta: -348.0 MB). Peak memory consumption was 839.9 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,807 INFO L168 Benchmark]: Witness Printer took 136.82 ms. Allocated memory is still 1.3 GB. Free memory was 434.8 MB in the beginning and 431.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 22:17:12,816 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, 69 locations, 25 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 398.5s, OverallIterations: 65, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50463168 SDtfs, -1783426094 SDslu, 205521808 SDs, 0 SdLazy, -652484574 SolverSat, 345286620 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 108.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15229 GetRequests, 13877 SyntacticMatches, 326 SemanticMatches, 1026 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454641 ImplicationChecksByTransitivity, 390.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 29.7s InterpolantComputationTime, 1684 NumberOfCodeBlocks, 1684 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 1589 ConstructedInterpolants, 0 QuantifiedInterpolants, 305083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 64 InterpolantComputations, 35 PerfectInterpolantSequences, 492/676 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: [L620] int len = from; [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L627] const int len = _get_nondet_int(2, 5); [L628] SLL s = sll_create(len); [L575] SLL head = ((void *)0); [L576] EXPR len-- [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- [L576] COND TRUE len-- > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) [L581] new_head->next = head [L582] head = new_head [L576] EXPR len-- [L576] COND FALSE !(len-- > 0) [L584] return head; [L628] SLL s = sll_create(len); [L620] int len = from; [L621] len < until && __VERIFIER_nondet_int() [L621] len < until && __VERIFIER_nondet_int() [L621] COND TRUE len < until && __VERIFIER_nondet_int() [L622] len++ [L621] len < until && __VERIFIER_nondet_int() [L621] COND FALSE !(len < until && __VERIFIER_nondet_int()) [L624] return len; [L629] const int k = _get_nondet_int(0, len - 1); [L630] int i = 0; [L631] i < k && __VERIFIER_nondet_int() [L631] i < k && __VERIFIER_nondet_int() [L631] COND FALSE !(i < k && __VERIFIER_nondet_int()) [L636] EXPR \read(s) [L587] int len = 0; [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND TRUE \read(head) [L589] len++ [L590] EXPR head->next [L590] head = head->next [L588] COND FALSE !(\read(head)) [L592] return len; [L636] COND TRUE k + len != sll_length(s) [L12] COND FALSE !(0) [L12] __assert_fail ("0", "sll_nondet_insert-1.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 50.7 MB in the beginning and 50.7 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.16 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 46.4 MB in the beginning and 59.1 MB in the end (delta: -12.6 MB). Peak memory consumption was 10.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.89 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 56.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.26 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 54.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 912.52 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 54.9 MB in the beginning and 86.8 MB in the end (delta: -31.9 MB). Peak memory consumption was 22.7 MB. Max. memory is 16.1 GB. * CodeCheck took 398629.72 ms. Allocated memory was 117.4 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 86.8 MB in the beginning and 434.8 MB in the end (delta: -348.0 MB). Peak memory consumption was 839.9 MB. Max. memory is 16.1 GB. * Witness Printer took 136.82 ms. Allocated memory is still 1.3 GB. Free memory was 434.8 MB in the beginning and 431.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...