./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/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 9becd42a466bdbd2531661a22b57e70854c9d9ea ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 18:40:22,784 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 18:40:22,785 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 18:40:22,791 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 18:40:22,791 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 18:40:22,791 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 18:40:22,792 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 18:40:22,793 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 18:40:22,794 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 18:40:22,794 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 18:40:22,795 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 18:40:22,795 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 18:40:22,795 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 18:40:22,796 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 18:40:22,797 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 18:40:22,797 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 18:40:22,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 18:40:22,798 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 18:40:22,799 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 18:40:22,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 18:40:22,801 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 18:40:22,801 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 18:40:22,802 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 18:40:22,803 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 18:40:22,803 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 18:40:22,803 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 18:40:22,804 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 18:40:22,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 18:40:22,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 18:40:22,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 18:40:22,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 18:40:22,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 18:40:22,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 18:40:22,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 18:40:22,807 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 18:40:22,807 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 18:40:22,807 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2018-12-09 18:40:22,815 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 18:40:22,815 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 18:40:22,816 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-09 18:40:22,816 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 18:40:22,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 18:40:22,817 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-12-09 18:40:22,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 18:40:22,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-12-09 18:40:22,818 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 18:40:22,818 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 18:40:22,818 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-12-09 18:40:22,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 18:40:22,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in 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_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/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 -> 9becd42a466bdbd2531661a22b57e70854c9d9ea [2018-12-09 18:40:22,836 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 18:40:22,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 18:40:22,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 18:40:22,848 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 18:40:22,848 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 18:40:22,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/../../sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i [2018-12-09 18:40:22,894 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/data/d3f8480da/e4013743460445cf8cb0aa38fd65efa6/FLAG898f419d9 [2018-12-09 18:40:23,347 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 18:40:23,347 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/sv-benchmarks/c/list-ext-properties/simple-ext_false-unreach-call_false-valid-memcleanup_true-termination.i [2018-12-09 18:40:23,353 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/data/d3f8480da/e4013743460445cf8cb0aa38fd65efa6/FLAG898f419d9 [2018-12-09 18:40:23,361 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/data/d3f8480da/e4013743460445cf8cb0aa38fd65efa6 [2018-12-09 18:40:23,362 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 18:40:23,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 18:40:23,364 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 18:40:23,364 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 18:40:23,366 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 18:40:23,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ab2707f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23, skipping insertion in model container [2018-12-09 18:40:23,368 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 18:40:23,395 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 18:40:23,543 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:40:23,588 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 18:40:23,609 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 18:40:23,630 INFO L195 MainTranslator]: Completed translation [2018-12-09 18:40:23,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23 WrapperNode [2018-12-09 18:40:23,630 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 18:40:23,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 18:40:23,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 18:40:23,631 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 18:40:23,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 18:40:23,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 18:40:23,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 18:40:23,656 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 18:40:23,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,672 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 18:40:23,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 18:40:23,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 18:40:23,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 18:40:23,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:40:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/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 [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 18:40:23,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 18:40:23,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 18:40:23,956 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 18:40:23,957 INFO L280 CfgBuilder]: Removed 11 assue(true) statements. [2018-12-09 18:40:23,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:23 BoogieIcfgContainer [2018-12-09 18:40:23,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 18:40:23,957 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-12-09 18:40:23,957 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-12-09 18:40:23,964 INFO L276 PluginConnector]: CodeCheck initialized [2018-12-09 18:40:23,965 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:23" (1/1) ... [2018-12-09 18:40:23,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 18:40:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:23,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2018-12-09 18:40:23,996 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2018-12-09 18:40:23,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-09 18:40:23,998 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 40 states and 44 transitions. [2018-12-09 18:40:24,074 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2018-12-09 18:40:24,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:40:24,075 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 43 states and 49 transitions. [2018-12-09 18:40:24,151 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2018-12-09 18:40:24,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:40:24,151 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 46 states and 54 transitions. [2018-12-09 18:40:24,316 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2018-12-09 18:40:24,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:40:24,317 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-09 18:40:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-09 18:40:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-09 18:40:24,334 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 48 states and 56 transitions. [2018-12-09 18:40:24,354 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 18:40:24,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 18:40:24,355 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-09 18:40:24,374 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-09 18:40:24,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-09 18:40:24,374 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 48 states and 56 transitions. [2018-12-09 18:40:24,395 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 18:40:24,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:40:24,397 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 47 states and 55 transitions. [2018-12-09 18:40:24,429 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 55 transitions. [2018-12-09 18:40:24,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 18:40:24,429 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 49 states and 58 transitions. [2018-12-09 18:40:24,464 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 58 transitions. [2018-12-09 18:40:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 18:40:24,464 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 55 states and 70 transitions. [2018-12-09 18:40:24,612 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 70 transitions. [2018-12-09 18:40:24,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 18:40:24,613 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 61 states and 82 transitions. [2018-12-09 18:40:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 82 transitions. [2018-12-09 18:40:24,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 18:40:24,755 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 60 states and 81 transitions. [2018-12-09 18:40:24,776 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 81 transitions. [2018-12-09 18:40:24,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 18:40:24,776 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:24,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 59 states and 80 transitions. [2018-12-09 18:40:24,982 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 80 transitions. [2018-12-09 18:40:24,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 18:40:24,982 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:24,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:25,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:25,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 58 states and 79 transitions. [2018-12-09 18:40:25,003 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 79 transitions. [2018-12-09 18:40:25,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 18:40:25,003 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:25,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:25,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:25,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 59 states and 82 transitions. [2018-12-09 18:40:25,032 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 82 transitions. [2018-12-09 18:40:25,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 18:40:25,032 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:25,082 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:25,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:25,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 64 states and 92 transitions. [2018-12-09 18:40:25,280 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 92 transitions. [2018-12-09 18:40:25,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 18:40:25,281 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:25,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:25,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:25,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 70 states and 103 transitions. [2018-12-09 18:40:25,867 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 103 transitions. [2018-12-09 18:40:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 18:40:25,867 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:25,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:25,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:26,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 71 states and 104 transitions. [2018-12-09 18:40:26,199 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 104 transitions. [2018-12-09 18:40:26,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 18:40:26,200 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:26,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:26,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 53 states and 77 transitions. [2018-12-09 18:40:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 77 transitions. [2018-12-09 18:40:26,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 18:40:26,672 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:26,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:26,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:27,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:27,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 59 states and 91 transitions. [2018-12-09 18:40:27,620 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 91 transitions. [2018-12-09 18:40:27,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 18:40:27,620 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:27,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:27,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 63 states and 96 transitions. [2018-12-09 18:40:27,768 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 96 transitions. [2018-12-09 18:40:27,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 18:40:27,768 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:27,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:27,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 67 states and 101 transitions. [2018-12-09 18:40:27,952 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 101 transitions. [2018-12-09 18:40:27,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 18:40:27,952 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:27,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 18:40:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:28,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 71 states and 106 transitions. [2018-12-09 18:40:28,571 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 106 transitions. [2018-12-09 18:40:28,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 18:40:28,572 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:28,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 18:40:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:28,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 75 states and 112 transitions. [2018-12-09 18:40:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 112 transitions. [2018-12-09 18:40:28,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 18:40:28,817 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:28,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:28,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:28,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 76 states and 118 transitions. [2018-12-09 18:40:28,853 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 118 transitions. [2018-12-09 18:40:28,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-12-09 18:40:28,853 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:28,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:28,874 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 18:40:29,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 77 states and 121 transitions. [2018-12-09 18:40:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 121 transitions. [2018-12-09 18:40:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 18:40:29,035 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:29,317 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:30,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:30,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 81 states and 126 transitions. [2018-12-09 18:40:30,435 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 126 transitions. [2018-12-09 18:40:30,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 18:40:30,436 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:30,521 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:31,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:31,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 87 states and 136 transitions. [2018-12-09 18:40:31,112 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 136 transitions. [2018-12-09 18:40:31,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 18:40:31,112 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:31,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:31,273 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:32,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:32,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 91 states and 142 transitions. [2018-12-09 18:40:32,808 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 142 transitions. [2018-12-09 18:40:32,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 18:40:32,808 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:32,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-12-09 18:40:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 75 states and 118 transitions. [2018-12-09 18:40:33,355 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 118 transitions. [2018-12-09 18:40:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 18:40:33,356 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:33,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-12-09 18:40:34,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:34,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 63 states and 99 transitions. [2018-12-09 18:40:34,026 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 99 transitions. [2018-12-09 18:40:34,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 18:40:34,026 INFO L431 CodeCheckObserver]: Error Path is FOUND. [2018-12-09 18:40:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 18:40:34,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 18:40:35,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-12-09 18:40:35,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2018-12-09 18:40:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-12-09 18:40:35,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 18:40:35,438 WARN L428 CodeCheckObserver]: This Program is SAFE, Check terminated with 33 iterations. [2018-12-09 18:40:35,444 INFO L779 CodeCheckObserver]: All specifications hold 19 specifications checked. All of them hold [2018-12-09 18:40:35,706 INFO L583 CodeCheckObserver]: Invariant with dag size 19 [2018-12-09 18:40:35,710 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,710 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,713 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,714 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 18:40:35,714 INFO L583 CodeCheckObserver]: Invariant with dag size 1 [2018-12-09 18:40:35,714 INFO L583 CodeCheckObserver]: Invariant with dag size 30 [2018-12-09 18:40:35,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,715 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,716 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,716 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,716 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,716 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 09.12 06:40:35 ImpRootNode [2018-12-09 18:40:35,717 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-12-09 18:40:35,717 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 18:40:35,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 18:40:35,718 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 18:40:35,718 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:40:23" (3/4) ... [2018-12-09 18:40:35,721 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 18:40:35,729 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-12-09 18:40:35,729 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 18:40:35,729 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 18:40:35,758 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_da6b583f-081b-465b-89a9-6963b15220b6/bin-2019/ukojak/witness.graphml [2018-12-09 18:40:35,758 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 18:40:35,758 INFO L168 Benchmark]: Toolchain (without parser) took 12395.67 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 368.1 MB). Free memory was 956.0 MB in the beginning and 1.3 GB in the end (delta: -361.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:40:35,759 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:40:35,759 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-12-09 18:40:35,759 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:40:35,760 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 18:40:35,760 INFO L168 Benchmark]: RCFGBuilder took 283.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-12-09 18:40:35,760 INFO L168 Benchmark]: CodeCheck took 11760.01 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 263.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -271.8 MB). Peak memory consumption was 503.9 MB. Max. memory is 11.5 GB. [2018-12-09 18:40:35,760 INFO L168 Benchmark]: Witness Printer took 40.36 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 469.0 kB). Peak memory consumption was 469.0 kB. Max. memory is 11.5 GB. [2018-12-09 18:40:35,761 INFO L336 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, 53 locations, 19 error locations. SAFE Result, 11.4s OverallTime, 33 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 168558592 SDtfs, -1531077468 SDslu, -1885621840 SDs, 0 SdLazy, -1694507322 SolverSat, -215178074 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3322 GetRequests, 3013 SyntacticMatches, 95 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21426 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 362 NumberOfCodeBlocks, 362 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 330 ConstructedInterpolants, 0 QuantifiedInterpolants, 32469 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 32 InterpolantComputations, 23 PerfectInterpolantSequences, 30/70 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 627]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 656]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 642]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 646]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 646]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 656]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 634]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 649]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 637]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 649]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 655]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 655]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 638]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 641]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 641]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold - InvariantResult [Line: 645]: Loop Invariant [2018-12-09 18:40:35,762 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,763 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,763 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,763 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((p == 0 && !(0 == p)) && 8 <= unknown-#length-unknown[p]) && \valid[p] == 1) && 0 == unknown-#memory_int-unknown[p][p] - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 621]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 633]: Loop Invariant [2018-12-09 18:40:35,763 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,763 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,764 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,764 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,764 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length [2018-12-09 18:40:35,764 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,764 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-12-09 18:40:35,765 WARN L1298 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: ((((((p == 0 && unknown-#length-unknown[p] == 8) && 0 == unknown-#memory_int-unknown[p := unknown-#memory_int-unknown[p][p := i]][a][a]) && !(0 == a)) && 0 == a) && \valid[p] == 1) && 1 == \valid[a]) && 8 <= unknown-#length-unknown[a] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.57 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 104.3 MB). Free memory was 956.0 MB in the beginning and 1.1 GB in the end (delta: -131.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.32 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 283.44 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 41.7 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. * CodeCheck took 11760.01 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 263.7 MB). Free memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: -271.8 MB). Peak memory consumption was 503.9 MB. Max. memory is 11.5 GB. * Witness Printer took 40.36 ms. Allocated memory is still 1.4 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 469.0 kB). Peak memory consumption was 469.0 kB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length RESULT: Ultimate proved your program to be correct! Received shutdown request...