./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/dll-circular-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/dll-circular-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/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 95b20088216028e3d05e3cb41d4ed5c20af6a751 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-02 00:59:56,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-02 00:59:56,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-02 00:59:56,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-02 00:59:56,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-02 00:59:56,943 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-02 00:59:56,944 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-02 00:59:56,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-02 00:59:56,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-02 00:59:56,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-02 00:59:56,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-02 00:59:56,949 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-02 00:59:56,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-02 00:59:56,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-02 00:59:56,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-02 00:59:56,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-02 00:59:56,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-02 00:59:56,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-02 00:59:56,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-02 00:59:56,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-02 00:59:56,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-02 00:59:56,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-02 00:59:56,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-02 00:59:56,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-02 00:59:56,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-02 00:59:56,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-02 00:59:56,960 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-02 00:59:56,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-02 00:59:56,961 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-02 00:59:56,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-02 00:59:56,961 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-02 00:59:56,962 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-02 00:59:56,962 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-02 00:59:56,963 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-02 00:59:56,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-02 00:59:56,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-02 00:59:56,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-02 00:59:56,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-02 00:59:56,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-02 00:59:56,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-02 00:59:56,965 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-02 00:59:56,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-02 00:59:56,975 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-02 00:59:56,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-02 00:59:56,976 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-02 00:59:56,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-02 00:59:56,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-02 00:59:56,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-02 00:59:56,978 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-02 00:59:56,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-02 00:59:56,978 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-02 00:59:56,978 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-02 00:59:56,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-02 00:59:56,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-02 00:59:56,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-02 00:59:56,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-02 00:59:56,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-02 00:59:56,979 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-02 00:59:56,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-02 00:59:56,979 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/run_dir_fee07c71-495e-4355-a052-7db1db673e58/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 -> 95b20088216028e3d05e3cb41d4ed5c20af6a751 [2019-12-02 00:59:57,077 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-02 00:59:57,086 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-02 00:59:57,089 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-02 00:59:57,090 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-02 00:59:57,090 INFO L275 PluginConnector]: CDTParser initialized [2019-12-02 00:59:57,090 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/../../sv-benchmarks/c/forester-heap/dll-circular-1.i [2019-12-02 00:59:57,130 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/data/8e2171dab/11c390034c4f42e3bac8fb8dd7d874aa/FLAG17cf01d14 [2019-12-02 00:59:57,589 INFO L306 CDTParser]: Found 1 translation units. [2019-12-02 00:59:57,589 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/sv-benchmarks/c/forester-heap/dll-circular-1.i [2019-12-02 00:59:57,597 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/data/8e2171dab/11c390034c4f42e3bac8fb8dd7d874aa/FLAG17cf01d14 [2019-12-02 00:59:57,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/data/8e2171dab/11c390034c4f42e3bac8fb8dd7d874aa [2019-12-02 00:59:57,608 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-02 00:59:57,609 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-02 00:59:57,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-02 00:59:57,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-02 00:59:57,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-02 00:59:57,613 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@542f2740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57, skipping insertion in model container [2019-12-02 00:59:57,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-02 00:59:57,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-02 00:59:57,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:59:57,853 INFO L203 MainTranslator]: Completed pre-run [2019-12-02 00:59:57,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-02 00:59:57,911 INFO L208 MainTranslator]: Completed translation [2019-12-02 00:59:57,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57 WrapperNode [2019-12-02 00:59:57,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-02 00:59:57,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-02 00:59:57,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-02 00:59:57,912 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-02 00:59:57,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-02 00:59:57,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-02 00:59:57,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-02 00:59:57,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-02 00:59:57,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,953 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,953 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,962 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,964 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... [2019-12-02 00:59:57,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-02 00:59:57,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-02 00:59:57,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-02 00:59:57,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-02 00:59:57,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:59:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/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 [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-02 00:59:58,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-02 00:59:58,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-02 00:59:58,340 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-02 00:59:58,341 INFO L287 CfgBuilder]: Removed 13 assume(true) statements. [2019-12-02 00:59:58,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:58 BoogieIcfgContainer [2019-12-02 00:59:58,341 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-02 00:59:58,342 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-02 00:59:58,342 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-02 00:59:58,348 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-02 00:59:58,349 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:58" (1/1) ... [2019-12-02 00:59:58,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-02 00:59:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 96 states and 114 transitions. [2019-12-02 00:59:58,380 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 114 transitions. [2019-12-02 00:59:58,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-02 00:59:58,381 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 95 states and 113 transitions. [2019-12-02 00:59:58,498 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 113 transitions. [2019-12-02 00:59:58,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-12-02 00:59:58,498 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 94 states and 112 transitions. [2019-12-02 00:59:58,576 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 112 transitions. [2019-12-02 00:59:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-02 00:59:58,576 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions. [2019-12-02 00:59:58,603 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2019-12-02 00:59:58,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-12-02 00:59:58,604 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 92 states and 110 transitions. [2019-12-02 00:59:58,634 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 110 transitions. [2019-12-02 00:59:58,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-02 00:59:58,634 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 92 states and 108 transitions. [2019-12-02 00:59:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 108 transitions. [2019-12-02 00:59:58,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 00:59:58,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 95 states and 114 transitions. [2019-12-02 00:59:58,705 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 114 transitions. [2019-12-02 00:59:58,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 00:59:58,705 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 98 states and 120 transitions. [2019-12-02 00:59:58,824 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 120 transitions. [2019-12-02 00:59:58,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 00:59:58,825 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 99 states and 122 transitions. [2019-12-02 00:59:58,861 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2019-12-02 00:59:58,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-02 00:59:58,862 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:58,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:58,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:58,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:58,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 100 states and 125 transitions. [2019-12-02 00:59:58,994 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions. [2019-12-02 00:59:58,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:59:58,994 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:59,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:59,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:59,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 104 states and 133 transitions. [2019-12-02 00:59:59,083 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 133 transitions. [2019-12-02 00:59:59,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:59:59,084 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:59,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:59,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:59,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:59,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 108 states and 140 transitions. [2019-12-02 00:59:59,394 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 140 transitions. [2019-12-02 00:59:59,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:59:59,395 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:59,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:59,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:59,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:59,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 107 states and 139 transitions. [2019-12-02 00:59:59,416 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 139 transitions. [2019-12-02 00:59:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-02 00:59:59,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:59,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 00:59:59,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 00:59:59,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 106 states and 138 transitions. [2019-12-02 00:59:59,629 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 138 transitions. [2019-12-02 00:59:59,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 00:59:59,632 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 00:59:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 00:59:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:00,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:00,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 108 states and 141 transitions. [2019-12-02 01:00:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 141 transitions. [2019-12-02 01:00:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-02 01:00:00,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:00,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:00,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 110 states and 144 transitions. [2019-12-02 01:00:00,756 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 144 transitions. [2019-12-02 01:00:00,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:00:00,756 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:00,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:00,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:00,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:00,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 110 states and 141 transitions. [2019-12-02 01:00:00,770 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2019-12-02 01:00:00,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:00:00,771 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:02,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:02,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 115 states and 150 transitions. [2019-12-02 01:00:02,113 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 150 transitions. [2019-12-02 01:00:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:00:02,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:02,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:02,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:02,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 116 states and 152 transitions. [2019-12-02 01:00:02,347 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 152 transitions. [2019-12-02 01:00:02,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-02 01:00:02,348 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:02,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:02,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:02,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 117 states and 153 transitions. [2019-12-02 01:00:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 153 transitions. [2019-12-02 01:00:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 01:00:02,642 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:04,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 124 states and 167 transitions. [2019-12-02 01:00:04,722 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 167 transitions. [2019-12-02 01:00:04,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 01:00:04,722 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:04,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:05,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:07,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:07,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 131 states and 180 transitions. [2019-12-02 01:00:07,801 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 180 transitions. [2019-12-02 01:00:07,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 01:00:07,801 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:07,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:10,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:10,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 136 states and 188 transitions. [2019-12-02 01:00:10,433 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 188 transitions. [2019-12-02 01:00:10,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-02 01:00:10,434 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:10,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:11,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 138 states and 192 transitions. [2019-12-02 01:00:11,767 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 192 transitions. [2019-12-02 01:00:11,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:11,768 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:11,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:11,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:12,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 141 states and 198 transitions. [2019-12-02 01:00:12,277 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 198 transitions. [2019-12-02 01:00:12,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:12,277 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:12,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:12,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:12,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 144 states and 203 transitions. [2019-12-02 01:00:12,662 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 203 transitions. [2019-12-02 01:00:12,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:12,662 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:12,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:12,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 145 states and 204 transitions. [2019-12-02 01:00:12,976 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 204 transitions. [2019-12-02 01:00:12,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:12,977 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:13,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 147 states and 210 transitions. [2019-12-02 01:00:15,053 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 210 transitions. [2019-12-02 01:00:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:15,054 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:15,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:15,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:15,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 148 states and 213 transitions. [2019-12-02 01:00:15,076 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 213 transitions. [2019-12-02 01:00:15,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-02 01:00:15,076 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:15,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:15,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:15,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 150 states and 218 transitions. [2019-12-02 01:00:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 218 transitions. [2019-12-02 01:00:15,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:15,114 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:15,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:16,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 154 states and 227 transitions. [2019-12-02 01:00:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 227 transitions. [2019-12-02 01:00:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:16,917 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:16,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:17,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 158 states and 237 transitions. [2019-12-02 01:00:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 237 transitions. [2019-12-02 01:00:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:19,890 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:20,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:25,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:25,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 168 states and 262 transitions. [2019-12-02 01:00:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 262 transitions. [2019-12-02 01:00:25,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:25,115 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:25,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:30,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:30,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 174 states and 278 transitions. [2019-12-02 01:00:30,600 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 278 transitions. [2019-12-02 01:00:30,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:30,601 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:30,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:30,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 174 states and 277 transitions. [2019-12-02 01:00:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 277 transitions. [2019-12-02 01:00:30,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-02 01:00:30,618 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:30,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:30,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:30,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:30,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 175 states and 278 transitions. [2019-12-02 01:00:30,653 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 278 transitions. [2019-12-02 01:00:30,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-02 01:00:30,653 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:31,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:39,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:39,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 185 states and 303 transitions. [2019-12-02 01:00:39,648 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 303 transitions. [2019-12-02 01:00:39,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-02 01:00:39,648 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:39,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:44,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 194 states and 326 transitions. [2019-12-02 01:00:44,663 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 326 transitions. [2019-12-02 01:00:44,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:44,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:44,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:45,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:47,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:47,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 199 states and 339 transitions. [2019-12-02 01:00:47,703 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 339 transitions. [2019-12-02 01:00:47,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:47,703 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:47,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:48,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:48,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 200 states and 341 transitions. [2019-12-02 01:00:48,111 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 341 transitions. [2019-12-02 01:00:48,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:48,111 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:48,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:49,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:49,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 201 states and 343 transitions. [2019-12-02 01:00:49,337 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 343 transitions. [2019-12-02 01:00:49,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:49,338 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:49,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:50,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 203 states and 347 transitions. [2019-12-02 01:00:50,590 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 347 transitions. [2019-12-02 01:00:50,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:50,591 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:50,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:54,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:54,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 206 states and 352 transitions. [2019-12-02 01:00:54,951 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 352 transitions. [2019-12-02 01:00:54,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-02 01:00:54,952 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:54,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:00:55,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:00:55,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 207 states and 352 transitions. [2019-12-02 01:00:55,228 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 352 transitions. [2019-12-02 01:00:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 01:00:55,228 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:00:55,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:00:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:08,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:08,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 220 states and 382 transitions. [2019-12-02 01:01:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 382 transitions. [2019-12-02 01:01:08,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 01:01:08,755 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:09,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:09,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 222 states and 384 transitions. [2019-12-02 01:01:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 384 transitions. [2019-12-02 01:01:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 01:01:09,374 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:12,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:15,274 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2019-12-02 01:01:16,171 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-12-02 01:01:23,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:23,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 403 states to 229 states and 403 transitions. [2019-12-02 01:01:23,036 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 403 transitions. [2019-12-02 01:01:23,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 01:01:23,036 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:23,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:23,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 228 states and 402 transitions. [2019-12-02 01:01:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 402 transitions. [2019-12-02 01:01:23,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-12-02 01:01:23,057 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:23,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:23,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:26,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:26,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 231 states and 405 transitions. [2019-12-02 01:01:26,859 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 405 transitions. [2019-12-02 01:01:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:26,860 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:26,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:27,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:27,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 230 states and 404 transitions. [2019-12-02 01:01:27,940 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 404 transitions. [2019-12-02 01:01:27,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:27,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:27,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:28,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:29,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:29,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 233 states and 407 transitions. [2019-12-02 01:01:29,392 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 407 transitions. [2019-12-02 01:01:29,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:29,392 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:29,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:29,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:36,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 237 states and 412 transitions. [2019-12-02 01:01:36,684 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 412 transitions. [2019-12-02 01:01:36,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:36,684 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:36,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:38,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:46,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:46,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 241 states and 417 transitions. [2019-12-02 01:01:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 417 transitions. [2019-12-02 01:01:46,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:46,587 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:46,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:46,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:46,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:46,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 242 states and 418 transitions. [2019-12-02 01:01:46,605 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 418 transitions. [2019-12-02 01:01:46,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:46,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:46,774 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:49,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:49,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 246 states and 424 transitions. [2019-12-02 01:01:49,947 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 424 transitions. [2019-12-02 01:01:49,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-02 01:01:49,948 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:49,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:50,501 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:01:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:01:56,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 251 states and 436 transitions. [2019-12-02 01:01:56,416 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 436 transitions. [2019-12-02 01:01:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-02 01:01:56,417 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:01:56,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:01:58,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:02:04,620 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-12-02 01:02:07,689 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2019-12-02 01:02:09,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:02:09,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 257 states and 449 transitions. [2019-12-02 01:02:09,217 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 449 transitions. [2019-12-02 01:02:09,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-02 01:02:09,218 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:02:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:02:10,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:02:15,884 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-12-02 01:02:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:02:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 266 states and 480 transitions. [2019-12-02 01:02:20,823 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 480 transitions. [2019-12-02 01:02:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-02 01:02:20,824 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:02:20,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:02:22,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:02:30,145 WARN L192 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2019-12-02 01:02:33,719 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2019-12-02 01:02:45,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:02:45,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 278 states and 511 transitions. [2019-12-02 01:02:45,615 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 511 transitions. [2019-12-02 01:02:45,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-12-02 01:02:45,616 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:02:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-02 01:02:45,640 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-02 01:02:48,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-02 01:02:48,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 281 states and 523 transitions. [2019-12-02 01:02:48,273 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 523 transitions. [2019-12-02 01:02:48,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-02 01:02:48,274 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-02 01:02:48,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 01:02:48,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 01:02:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 01:02:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-02 01:02:48,350 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 60 iterations. [2019-12-02 01:02:48,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 01:02:48 ImpRootNode [2019-12-02 01:02:48,382 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-02 01:02:48,383 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-02 01:02:48,383 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-02 01:02:48,383 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-02 01:02:48,383 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:59:58" (3/4) ... [2019-12-02 01:02:48,385 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-02 01:02:48,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_fee07c71-495e-4355-a052-7db1db673e58/bin/ukojak/witness.graphml [2019-12-02 01:02:48,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-02 01:02:48,434 INFO L168 Benchmark]: Toolchain (without parser) took 170825.39 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 106.4 MB). Free memory was 934.5 MB in the beginning and 896.0 MB in the end (delta: 38.4 MB). Peak memory consumption was 144.9 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,435 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-02 01:02:48,435 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,436 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.39 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. [2019-12-02 01:02:48,436 INFO L168 Benchmark]: Boogie Preprocessor took 21.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,437 INFO L168 Benchmark]: RCFGBuilder took 375.83 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,437 INFO L168 Benchmark]: CodeCheck took 170040.65 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Free memory was 1.0 GB in the beginning and 898.1 MB in the end (delta: 115.1 MB). Peak memory consumption was 142.3 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,438 INFO L168 Benchmark]: Witness Printer took 50.16 ms. Allocated memory is still 1.1 GB. Free memory was 898.1 MB in the beginning and 896.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. [2019-12-02 01:02:48,441 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, 96 locations, 50 error locations. Result: UNSAFE, OverallTime: 169.9s, OverallIterations: 60, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 229179424 SDtfs, 766558936 SDslu, -290314104 SDs, 0 SdLazy, 1880932574 SolverSat, -679811310 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6420 GetRequests, 5520 SyntacticMatches, 172 SemanticMatches, 728 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275784 ImplicationChecksByTransitivity, 166.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.7s InterpolantComputationTime, 717 NumberOfCodeBlocks, 717 NumberOfCodeBlocksAsserted, 60 NumberOfCheckSat, 639 ConstructedInterpolants, 0 QuantifiedInterpolants, 65493 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 59 InterpolantComputations, 56 PerfectInterpolantSequences, 7/13 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: 1023]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L986] SLL* head = malloc(sizeof(SLL)); [L987] head->next = head [L988] head->data = 0 [L990] SLL* x = head; [L991] int state = 1; [L994] COND FALSE !(__VERIFIER_nondet_int()) [L1016] x->data = state [L1018] EXPR head->next [L1018] x = head->next [L1019] COND FALSE !(!(((void*)0) != x)) [L1021] EXPR x->data [L1021] COND TRUE x->data != 0 [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] EXPR x->data [L1023] EXPR x->next [L1023] EXPR x->next->data [L1023] EXPR x->next->data != 0 && x->data > x->next->data [L1023] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L1023] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 956.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 302.41 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 79.2 MB). Free memory was 934.5 MB in the beginning and 1.1 GB in the end (delta: -128.6 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.39 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 21.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 375.83 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: 44.4 MB). Peak memory consumption was 44.4 MB. Max. memory is 11.5 GB. * CodeCheck took 170040.65 ms. Allocated memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.3 MB). Free memory was 1.0 GB in the beginning and 898.1 MB in the end (delta: 115.1 MB). Peak memory consumption was 142.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.16 ms. Allocated memory is still 1.1 GB. Free memory was 898.1 MB in the beginning and 896.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...