./Ultimate.py --spec ../../sv-benchmarks/c/MemSafety.prp --file ../../sv-benchmarks/c/memsafety-ext3/freeAlloca_false-valid-free.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/memsafety-ext3/freeAlloca_false-valid-free.c -s /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2749915c63b6e758ac6033a38fbdad80769d2869 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:35:19,768 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:35:19,769 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:35:19,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:35:19,775 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:35:19,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:35:19,776 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:35:19,777 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:35:19,778 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:35:19,778 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:35:19,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:35:19,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:35:19,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:35:19,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:35:19,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:35:19,782 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:35:19,782 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:35:19,784 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:35:19,785 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:35:19,786 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:35:19,786 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:35:19,787 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:35:19,788 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:35:19,788 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:35:19,788 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:35:19,788 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:35:19,789 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:35:19,789 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:35:19,790 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:35:19,790 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:35:19,790 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:35:19,791 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:35:19,791 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:35:19,791 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:35:19,791 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:35:19,792 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:35:19,792 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2018-11-18 15:35:19,802 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:35:19,802 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:35:19,803 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:35:19,803 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:35:19,803 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:35:19,803 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-11-18 15:35:19,804 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:35:19,805 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 15:35:19,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:35:19,805 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 15:35:19,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:35:19,806 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:35:19,806 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 15:35:19,806 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:35:19,806 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_786b582b-5500-42f8-8bbe-b76497eb74cb/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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 2749915c63b6e758ac6033a38fbdad80769d2869 [2018-11-18 15:35:19,829 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:35:19,838 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:35:19,841 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:35:19,842 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:35:19,842 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:35:19,843 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/../../sv-benchmarks/c/memsafety-ext3/freeAlloca_false-valid-free.c [2018-11-18 15:35:19,884 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/data/fb1107d60/fd17eb8bdf93462282e97b85f0f2a1f6/FLAG93d9f9f61 [2018-11-18 15:35:20,284 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:35:20,285 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/sv-benchmarks/c/memsafety-ext3/freeAlloca_false-valid-free.c [2018-11-18 15:35:20,288 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/data/fb1107d60/fd17eb8bdf93462282e97b85f0f2a1f6/FLAG93d9f9f61 [2018-11-18 15:35:20,298 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/data/fb1107d60/fd17eb8bdf93462282e97b85f0f2a1f6 [2018-11-18 15:35:20,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:35:20,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:35:20,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:35:20,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:35:20,305 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:35:20,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d293ee9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20, skipping insertion in model container [2018-11-18 15:35:20,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:35:20,325 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:35:20,419 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:35:20,425 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:35:20,433 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:35:20,442 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:35:20,442 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20 WrapperNode [2018-11-18 15:35:20,442 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:35:20,443 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:35:20,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:35:20,443 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:35:20,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:35:20,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:35:20,466 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:35:20,466 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:35:20,471 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,472 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,476 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,513 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,514 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:35:20,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:35:20,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:35:20,514 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:35:20,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:35:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/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 [2018-11-18 15:35:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:35:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:35:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:35:20,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:35:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:35:20,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:35:20,695 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:35:20,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:35:20 BoogieIcfgContainer [2018-11-18 15:35:20,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:35:20,696 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2018-11-18 15:35:20,696 INFO L271 PluginConnector]: Initializing CodeCheck... [2018-11-18 15:35:20,702 INFO L276 PluginConnector]: CodeCheck initialized [2018-11-18 15:35:20,702 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:35:20" (1/1) ... [2018-11-18 15:35:20,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:35:20,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:20,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2018-11-18 15:35:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 15:35:20,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-11-18 15:35:20,732 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:20,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:20,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:20,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:20,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 18 states and 19 transitions. [2018-11-18 15:35:20,808 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-18 15:35:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:35:20,808 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:20,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:20,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:20,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 20 states and 22 transitions. [2018-11-18 15:35:20,870 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 15:35:20,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:35:20,872 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:20,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:20,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2018-11-18 15:35:20,985 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-18 15:35:20,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-11-18 15:35:20,985 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 24 states and 27 transitions. [2018-11-18 15:35:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2018-11-18 15:35:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:35:21,174 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:21,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2018-11-18 15:35:21,239 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 15:35:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:35:21,239 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,261 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:21,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 23 states and 26 transitions. [2018-11-18 15:35:21,338 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2018-11-18 15:35:21,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 15:35:21,339 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,438 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:21,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2018-11-18 15:35:21,689 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2018-11-18 15:35:21,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:35:21,689 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,713 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 15:35:21,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 27 states and 36 transitions. [2018-11-18 15:35:21,819 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2018-11-18 15:35:21,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:35:21,819 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:21,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:21,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:21,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2018-11-18 15:35:21,987 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2018-11-18 15:35:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:35:21,987 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,009 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-18 15:35:22,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:22,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 32 states and 45 transitions. [2018-11-18 15:35:22,119 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2018-11-18 15:35:22,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:35:22,119 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:22,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,149 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:22,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 52 transitions. [2018-11-18 15:35:22,302 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2018-11-18 15:35:22,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-18 15:35:22,302 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,352 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-11-18 15:35:22,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:22,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 37 states and 54 transitions. [2018-11-18 15:35:22,465 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2018-11-18 15:35:22,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:35:22,465 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,504 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:22,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:22,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 40 states and 61 transitions. [2018-11-18 15:35:22,672 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 61 transitions. [2018-11-18 15:35:22,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-18 15:35:22,672 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:22,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,719 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-11-18 15:35:22,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:22,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2018-11-18 15:35:22,830 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2018-11-18 15:35:22,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:35:22,830 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:22,876 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:23,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:23,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 45 states and 70 transitions. [2018-11-18 15:35:23,068 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 70 transitions. [2018-11-18 15:35:23,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:35:23,069 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:23,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:23,121 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-11-18 15:35:23,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:23,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 47 states and 72 transitions. [2018-11-18 15:35:23,265 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 72 transitions. [2018-11-18 15:35:23,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:35:23,266 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:23,338 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:23,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:23,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 50 states and 79 transitions. [2018-11-18 15:35:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 79 transitions. [2018-11-18 15:35:23,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 15:35:23,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:23,752 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2018-11-18 15:35:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:23,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 52 states and 81 transitions. [2018-11-18 15:35:23,928 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 81 transitions. [2018-11-18 15:35:23,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:35:23,929 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:23,975 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:24,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:24,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 55 states and 88 transitions. [2018-11-18 15:35:24,238 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 88 transitions. [2018-11-18 15:35:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:35:24,238 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:24,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:24,291 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2018-11-18 15:35:24,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 57 states and 90 transitions. [2018-11-18 15:35:24,451 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 90 transitions. [2018-11-18 15:35:24,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 15:35:24,452 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:24,502 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:24,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:24,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 60 states and 96 transitions. [2018-11-18 15:35:24,777 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 96 transitions. [2018-11-18 15:35:24,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-11-18 15:35:24,778 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:24,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:24,830 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-11-18 15:35:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 62 states and 98 transitions. [2018-11-18 15:35:24,988 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 98 transitions. [2018-11-18 15:35:24,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:35:24,988 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:25,055 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:35:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:25,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 65 states and 101 transitions. [2018-11-18 15:35:25,350 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 101 transitions. [2018-11-18 15:35:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-18 15:35:25,350 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:25,408 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2018-11-18 15:35:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:25,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-18 15:35:25,613 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-18 15:35:25,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-11-18 15:35:25,614 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:25,701 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 15:35:27,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:27,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-18 15:35:27,478 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-18 15:35:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-11-18 15:35:27,478 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:27,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:27,585 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 15:35:27,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:27,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-11-18 15:35:27,678 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-11-18 15:35:27,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 15:35:27,678 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:27,869 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 15:35:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:30,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 44 transitions. [2018-11-18 15:35:30,502 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 44 transitions. [2018-11-18 15:35:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-11-18 15:35:30,502 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:30,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:30,516 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-11-18 15:35:30,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 43 transitions. [2018-11-18 15:35:30,928 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 43 transitions. [2018-11-18 15:35:30,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-11-18 15:35:30,929 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2018-11-18 15:35:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:35:31,159 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2018-11-18 15:35:35,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2018-11-18 15:35:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 40 transitions. [2018-11-18 15:35:35,036 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 40 transitions. [2018-11-18 15:35:35,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:35:35,037 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 30 iterations. [2018-11-18 15:35:35,042 INFO L775 CodeCheckObserver]: All specifications hold 7 specifications checked. All of them hold [2018-11-18 15:35:35,253 INFO L579 CodeCheckObserver]: Invariant with dag size 3 [2018-11-18 15:35:35,256 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,260 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,260 INFO L579 CodeCheckObserver]: Invariant with dag size 30 [2018-11-18 15:35:35,262 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,262 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,263 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,263 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,263 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,263 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,265 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,265 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,265 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,266 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,266 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,266 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 18.11 03:35:35 ImpRootNode [2018-11-18 15:35:35,267 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2018-11-18 15:35:35,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:35:35,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:35:35,267 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:35:35,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:35:20" (3/4) ... [2018-11-18 15:35:35,271 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:35:35,276 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-11-18 15:35:35,276 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-11-18 15:35:35,277 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:35:35,277 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:35:35,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((unknown-#length-unknown[p] == 10 && 1 < i) && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && 0 <= p) || ((((((unknown-#length-unknown[p] == 10 && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && i == 0) && 0 <= p)) || ((((((unknown-#length-unknown[p] == 10 && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && i <= 1) && 1 <= i + p) [2018-11-18 15:35:35,293 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid-unknown) == \valid [2018-11-18 15:35:35,301 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_786b582b-5500-42f8-8bbe-b76497eb74cb/bin-2019/ukojak/witness.graphml [2018-11-18 15:35:35,301 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:35:35,301 INFO L168 Benchmark]: Toolchain (without parser) took 15000.57 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 323.5 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -118.1 MB). Peak memory consumption was 205.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,302 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:35:35,302 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,302 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,303 INFO L168 Benchmark]: Boogie Preprocessor took 48.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,303 INFO L168 Benchmark]: RCFGBuilder took 181.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,304 INFO L168 Benchmark]: CodeCheck took 14570.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.3 MB). Peak memory consumption was 216.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,304 INFO L168 Benchmark]: Witness Printer took 33.56 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:35:35,306 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, 22 locations, 7 error locations. SAFE Result, 14.3s OverallTime, 30 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: -1879048112 SDtfs, 1834310830 SDslu, 1593836982 SDs, 0 SdLazy, 548057336 SolverSat, 1554690040 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4393 GetRequests, 3767 SyntacticMatches, 314 SemanticMatches, 312 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42675 ImplicationChecksByTransitivity, 12.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 528 ConstructedInterpolants, 0 QuantifiedInterpolants, 110372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 29 InterpolantComputations, 10 PerfectInterpolantSequences, 1234/1731 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: 13]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 5]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 9]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 13]: free always succeeds For all program executions holds that free always succeeds at this location - PositiveResult [Line: 12]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 7 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2018-11-18 15:35:35,307 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,307 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: \old(unknown-main_\old_#valid-unknown) == \valid - InvariantResult [Line: 8]: Loop Invariant [2018-11-18 15:35:35,308 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,309 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,309 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,309 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,309 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,309 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,310 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,311 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,311 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,311 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid [2018-11-18 15:35:35,311 WARN L1239 BoogieBacktranslator]: unknown boogie variable #length [2018-11-18 15:35:35,311 WARN L1239 BoogieBacktranslator]: unknown boogie variable main_old_#valid Derived loop invariant: (((((((unknown-#length-unknown[p] == 10 && 1 < i) && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && 0 <= p) || ((((((unknown-#length-unknown[p] == 10 && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && i == 0) && 0 <= p)) || ((((((unknown-#length-unknown[p] == 10 && p == alloca(10 * sizeof(char))) && 1 == \valid[p]) && p <= 0) && \old(unknown-main_\old_#valid-unknown) == \valid[p := \valid[p := 0][p]]) && i <= 1) && 1 <= i + p) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.62 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 23.11 ms. Allocated memory is still 1.0 GB. Free memory was 949.6 MB in the beginning and 946.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 48.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 151.5 MB). Free memory was 946.9 MB in the beginning and 1.2 GB in the end (delta: -204.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 181.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 11.5 GB. * CodeCheck took 14570.97 ms. Allocated memory was 1.2 GB in the beginning and 1.4 GB in the end (delta: 172.0 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 44.3 MB). Peak memory consumption was 216.3 MB. Max. memory is 11.5 GB. * Witness Printer took 33.56 ms. Allocated memory is still 1.4 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable main_old_#valid RESULT: Ultimate proved your program to be correct! Received shutdown request...