./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/list-2.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/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 6439b1baef116d71fdff38c675a38b8a29c42257 ................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memtrack) --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:12:41,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:12:41,628 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:12:41,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:12:41,643 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:12:41,644 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:12:41,645 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:12:41,647 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:12:41,649 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:12:41,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:12:41,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:12:41,651 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:12:41,652 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:12:41,653 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:12:41,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:12:41,658 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:12:41,659 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:12:41,659 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:12:41,661 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:12:41,672 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:12:41,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:12:41,674 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:12:41,675 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:12:41,676 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:12:41,677 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:12:41,677 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:12:41,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:12:41,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:12:41,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:12:41,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:12:41,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:12:41,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:12:41,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:12:41,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:12:41,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:12:41,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:12:41,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:12:41,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:12:41,687 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:12:41,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:12:41,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:12:41,689 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-10-22 10:12:41,702 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:12:41,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:12:41,703 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:12:41,703 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:12:41,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:12:41,704 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:12:41,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:12:41,704 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:12:41,704 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:12:41,705 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:12:41,710 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:12:41,710 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:12:41,710 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:12:41,710 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:12:41,710 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:12:41,711 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:12:41,711 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:12:41,711 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:12:41,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:12:41,711 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/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 -> 6439b1baef116d71fdff38c675a38b8a29c42257 [2019-10-22 10:12:41,755 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:12:41,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:12:41,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:12:41,772 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:12:41,773 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:12:41,773 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/../../sv-benchmarks/c/list-properties/list-2.i [2019-10-22 10:12:41,822 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/data/a491faa60/2f989bbd2b6a485a8c718e57acaad4b2/FLAG169a619ef [2019-10-22 10:12:42,272 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:12:42,272 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/sv-benchmarks/c/list-properties/list-2.i [2019-10-22 10:12:42,287 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/data/a491faa60/2f989bbd2b6a485a8c718e57acaad4b2/FLAG169a619ef [2019-10-22 10:12:42,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/data/a491faa60/2f989bbd2b6a485a8c718e57acaad4b2 [2019-10-22 10:12:42,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:12:42,801 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:12:42,802 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:42,802 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:12:42,805 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:12:42,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:42" (1/1) ... [2019-10-22 10:12:42,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78556bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:42, skipping insertion in model container [2019-10-22 10:12:42,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:12:42" (1/1) ... [2019-10-22 10:12:42,815 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:12:42,852 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:12:43,191 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:43,202 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:12:43,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:12:43,292 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:12:43,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43 WrapperNode [2019-10-22 10:12:43,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:12:43,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:43,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:12:43,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:12:43,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,335 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:12:43,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:12:43,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:12:43,336 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:12:43,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,346 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... [2019-10-22 10:12:43,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:12:43,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:12:43,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:12:43,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:12:43,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:12:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/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 [2019-10-22 10:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 10:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 10:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-22 10:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-22 10:12:43,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-22 10:12:43,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:12:43,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:12:44,076 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:12:44,076 INFO L284 CfgBuilder]: Removed 14 assume(true) statements. [2019-10-22 10:12:44,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:44 BoogieIcfgContainer [2019-10-22 10:12:44,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:12:44,078 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:12:44,078 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:12:44,090 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:12:44,090 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:44" (1/1) ... [2019-10-22 10:12:44,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:12:44,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 52 states and 62 transitions. [2019-10-22 10:12:44,141 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 62 transitions. [2019-10-22 10:12:44,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:12:44,144 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 52 states and 60 transitions. [2019-10-22 10:12:44,274 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2019-10-22 10:12:44,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:12:44,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2019-10-22 10:12:44,401 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2019-10-22 10:12:44,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:12:44,401 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 58 states and 70 transitions. [2019-10-22 10:12:44,780 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2019-10-22 10:12:44,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:44,781 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 61 states and 75 transitions. [2019-10-22 10:12:44,821 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 75 transitions. [2019-10-22 10:12:44,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:44,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 64 states and 80 transitions. [2019-10-22 10:12:44,870 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2019-10-22 10:12:44,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:44,874 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 65 states and 81 transitions. [2019-10-22 10:12:44,905 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2019-10-22 10:12:44,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:44,906 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:44,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:44,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:44,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 66 states and 82 transitions. [2019-10-22 10:12:44,986 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 82 transitions. [2019-10-22 10:12:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:44,986 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:45,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 65 states and 81 transitions. [2019-10-22 10:12:45,050 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2019-10-22 10:12:45,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 10:12:45,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:45,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:45,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 67 states and 84 transitions. [2019-10-22 10:12:45,235 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 84 transitions. [2019-10-22 10:12:45,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:45,236 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:45,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:45,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 73 states and 96 transitions. [2019-10-22 10:12:45,468 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 96 transitions. [2019-10-22 10:12:45,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:45,469 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:45,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:45,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 79 states and 109 transitions. [2019-10-22 10:12:45,748 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 109 transitions. [2019-10-22 10:12:45,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:45,748 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:45,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 78 states and 108 transitions. [2019-10-22 10:12:45,811 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2019-10-22 10:12:45,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 10:12:45,812 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:45,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:45,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 77 states and 107 transitions. [2019-10-22 10:12:46,188 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 107 transitions. [2019-10-22 10:12:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:46,189 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 79 states and 111 transitions. [2019-10-22 10:12:46,271 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 111 transitions. [2019-10-22 10:12:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 10:12:46,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 79 states and 110 transitions. [2019-10-22 10:12:46,357 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 110 transitions. [2019-10-22 10:12:46,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,357 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 80 states and 111 transitions. [2019-10-22 10:12:46,401 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2019-10-22 10:12:46,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,402 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 81 states and 112 transitions. [2019-10-22 10:12:46,656 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 112 transitions. [2019-10-22 10:12:46,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,657 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 80 states and 111 transitions. [2019-10-22 10:12:46,683 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2019-10-22 10:12:46,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,683 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 82 states and 116 transitions. [2019-10-22 10:12:46,838 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 116 transitions. [2019-10-22 10:12:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,839 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 81 states and 115 transitions. [2019-10-22 10:12:46,876 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 115 transitions. [2019-10-22 10:12:46,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 10:12:46,877 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:46,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:46,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 80 states and 114 transitions. [2019-10-22 10:12:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2019-10-22 10:12:46,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:46,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:47,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:47,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:47,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 82 states and 120 transitions. [2019-10-22 10:12:47,811 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 120 transitions. [2019-10-22 10:12:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:47,811 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:47,963 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:48,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:48,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 76 states and 110 transitions. [2019-10-22 10:12:48,569 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 110 transitions. [2019-10-22 10:12:48,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-22 10:12:48,569 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:49,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 71 states and 104 transitions. [2019-10-22 10:12:49,412 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2019-10-22 10:12:49,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:49,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:49,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:49,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:49,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:49,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2019-10-22 10:12:49,434 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2019-10-22 10:12:49,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:49,435 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:49,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:49,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:49,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 69 states and 102 transitions. [2019-10-22 10:12:49,465 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 102 transitions. [2019-10-22 10:12:49,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:49,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:49,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:49,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 68 states and 101 transitions. [2019-10-22 10:12:49,491 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2019-10-22 10:12:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-22 10:12:49,492 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:12:49,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:12:49,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:12:49,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 71 states and 109 transitions. [2019-10-22 10:12:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 109 transitions. [2019-10-22 10:12:49,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-22 10:12:49,585 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:12:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:49,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:49,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 10:12:49,670 WARN L489 CodeCheckObserver]: This program is UNSAFE, Check terminated with 29 iterations. [2019-10-22 10:12:49,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:12:49 ImpRootNode [2019-10-22 10:12:49,726 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:12:49,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:12:49,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:12:49,727 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:12:49,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:12:44" (3/4) ... [2019-10-22 10:12:49,729 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 10:12:49,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e14a0df8-d4fd-4e62-b382-12327598af16/bin/ukojak/witness.graphml [2019-10-22 10:12:49,822 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:12:49,825 INFO L168 Benchmark]: Toolchain (without parser) took 7022.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 175.6 MB). Free memory was 940.7 MB in the beginning and 908.5 MB in the end (delta: 32.1 MB). Peak memory consumption was 207.8 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,825 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:12:49,828 INFO L168 Benchmark]: CACSL2BoogieTranslator took 493.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,829 INFO L168 Benchmark]: Boogie Preprocessor took 27.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,829 INFO L168 Benchmark]: RCFGBuilder took 713.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,830 INFO L168 Benchmark]: CodeCheck took 5647.89 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 915.2 MB in the end (delta: 149.5 MB). Peak memory consumption was 196.2 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,830 INFO L168 Benchmark]: Witness Printer took 96.27 ms. Allocated memory is still 1.2 GB. Free memory was 915.2 MB in the beginning and 908.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:12:49,833 INFO L335 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, 52 locations, 25 error locations. Result: UNSAFE, OverallTime: 5.5s, OverallIterations: 29, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: -1499258800 SDtfs, 1187733536 SDslu, 1534243932 SDs, 0 SdLazy, -1379262590 SolverSat, 1060236774 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2048 GetRequests, 1902 SyntacticMatches, 58 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3084 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 261 NumberOfCodeBlocks, 261 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 10881 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 7/7 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: 520]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] List a = (List) malloc(sizeof(struct node)); [L522] COND FALSE !(a == 0) [L523] List t; [L524] List p = a; [L525] COND FALSE !(__VERIFIER_nondet_int()) [L532] COND FALSE !(__VERIFIER_nondet_int()) [L539] p->h = 3 [L540] p = a [L541] EXPR p->h [L541] COND FALSE !(p->h == 2) [L543] EXPR p->h [L543] COND FALSE !(p->h == 1) [L545] EXPR p->h [L545] COND FALSE !(p->h != 3) [L547] return 0; * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 493.16 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 21.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 713.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * CodeCheck took 5647.89 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 46.7 MB). Free memory was 1.1 GB in the beginning and 915.2 MB in the end (delta: 149.5 MB). Peak memory consumption was 196.2 MB. Max. memory is 11.5 GB. * Witness Printer took 96.27 ms. Allocated memory is still 1.2 GB. Free memory was 915.2 MB in the beginning and 908.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...