./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-circular-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-circular-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/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 6ca87716ddde5218a0bb0d9c4d67f4e1c636cb2c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 18:01:49,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:01:49,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:01:49,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:01:49,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:01:49,649 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:01:49,651 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:01:49,653 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:01:49,656 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:01:49,657 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:01:49,658 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:01:49,660 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:01:49,660 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:01:49,661 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:01:49,663 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:01:49,664 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:01:49,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:01:49,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:01:49,669 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:01:49,671 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:01:49,676 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:01:49,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:01:49,680 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:01:49,681 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:01:49,686 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:01:49,691 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:01:49,692 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:01:49,693 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:01:49,698 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:01:49,701 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:01:49,701 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:01:49,702 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:01:49,704 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:01:49,705 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:01:49,707 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:01:49,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:01:49,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:01:49,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:01:49,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:01:49,711 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:01:49,712 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:01:49,715 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-12-01 18:01:49,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:01:49,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:01:49,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:01:49,755 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:01:49,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:01:49,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:01:49,756 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:01:49,756 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:01:49,756 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:01:49,757 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:01:49,758 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:01:49,758 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:01:49,758 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:01:49,758 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:01:49,759 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:01:49,759 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:01:49,759 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:01:49,759 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:01:49,760 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:01:49,760 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:01:49,760 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:01:49,760 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:01:49,761 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:01:49,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:01:49,761 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6ca87716ddde5218a0bb0d9c4d67f4e1c636cb2c [2020-12-01 18:01:50,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:01:50,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:01:50,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:01:50,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:01:50,076 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:01:50,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/../../sv-benchmarks/c/forester-heap/sll-circular-2.i [2020-12-01 18:01:50,151 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/data/72f8267db/68d300903e4e44fe88fe9fe776d66e1f/FLAG7dde67bbf [2020-12-01 18:01:50,799 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:01:50,801 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/sv-benchmarks/c/forester-heap/sll-circular-2.i [2020-12-01 18:01:50,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/data/72f8267db/68d300903e4e44fe88fe9fe776d66e1f/FLAG7dde67bbf [2020-12-01 18:01:51,078 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/data/72f8267db/68d300903e4e44fe88fe9fe776d66e1f [2020-12-01 18:01:51,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:01:51,082 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:01:51,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:01:51,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:01:51,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:01:51,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eea879b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51, skipping insertion in model container [2020-12-01 18:01:51,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:01:51,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:01:51,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:01:51,538 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:01:51,576 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:01:51,641 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:01:51,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51 WrapperNode [2020-12-01 18:01:51,642 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:01:51,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:01:51,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:01:51,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:01:51,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:01:51,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:01:51,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:01:51,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:01:51,705 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,709 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,710 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... [2020-12-01 18:01:51,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:01:51,743 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:01:51,743 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:01:51,743 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:01:51,744 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:01:51" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:01:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:01:51,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:01:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:01:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 18:01:51,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:01:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 18:01:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:01:51,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:01:51,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:01:51,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:01:52,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:01:52,578 INFO L298 CfgBuilder]: Removed 19 assume(true) statements. [2020-12-01 18:01:52,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:01:52 BoogieIcfgContainer [2020-12-01 18:01:52,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:01:52,583 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:01:52,583 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:01:52,596 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:01:52,597 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:01:52" (1/1) ... [2020-12-01 18:01:52,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:01:52,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:52,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 96 states and 117 transitions. [2020-12-01 18:01:52,664 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 117 transitions. [2020-12-01 18:01:52,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 18:01:52,667 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:52,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:52,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:52,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:52,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 95 states and 116 transitions. [2020-12-01 18:01:52,834 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 116 transitions. [2020-12-01 18:01:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-12-01 18:01:52,835 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:52,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:52,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 94 states and 115 transitions. [2020-12-01 18:01:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 115 transitions. [2020-12-01 18:01:53,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:01:53,033 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 93 states and 114 transitions. [2020-12-01 18:01:53,107 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 114 transitions. [2020-12-01 18:01:53,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-01 18:01:53,108 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 92 states and 113 transitions. [2020-12-01 18:01:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 113 transitions. [2020-12-01 18:01:53,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:01:53,151 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 92 states and 111 transitions. [2020-12-01 18:01:53,201 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2020-12-01 18:01:53,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:01:53,202 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 95 states and 117 transitions. [2020-12-01 18:01:53,319 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2020-12-01 18:01:53,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:01:53,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 98 states and 123 transitions. [2020-12-01 18:01:53,552 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2020-12-01 18:01:53,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:01:53,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 99 states and 125 transitions. [2020-12-01 18:01:53,650 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 125 transitions. [2020-12-01 18:01:53,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:01:53,651 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 100 states and 127 transitions. [2020-12-01 18:01:53,730 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2020-12-01 18:01:53,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:01:53,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:53,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 104 states and 135 transitions. [2020-12-01 18:01:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2020-12-01 18:01:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:01:53,881 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:53,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:54,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:54,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 108 states and 143 transitions. [2020-12-01 18:01:54,319 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 143 transitions. [2020-12-01 18:01:54,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:01:54,320 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:54,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:54,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 107 states and 142 transitions. [2020-12-01 18:01:54,373 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 142 transitions. [2020-12-01 18:01:54,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-01 18:01:54,373 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:54,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:54,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 108 states and 144 transitions. [2020-12-01 18:01:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 144 transitions. [2020-12-01 18:01:54,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:01:54,691 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:54,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:54,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:55,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:55,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 110 states and 148 transitions. [2020-12-01 18:01:55,211 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 148 transitions. [2020-12-01 18:01:55,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-01 18:01:55,212 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:55,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:55,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:55,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:55,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 112 states and 152 transitions. [2020-12-01 18:01:55,888 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 152 transitions. [2020-12-01 18:01:55,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:01:55,888 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:55,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:55,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 112 states and 149 transitions. [2020-12-01 18:01:55,906 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 149 transitions. [2020-12-01 18:01:55,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:01:55,907 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:55,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:57,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:57,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 119 states and 163 transitions. [2020-12-01 18:01:57,049 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 163 transitions. [2020-12-01 18:01:57,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:01:57,050 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:57,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:57,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:01:58,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:01:58,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 126 states and 178 transitions. [2020-12-01 18:01:58,503 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 178 transitions. [2020-12-01 18:01:58,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:01:58,504 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:01:58,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:01:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:00,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 130 states and 186 transitions. [2020-12-01 18:02:00,864 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 186 transitions. [2020-12-01 18:02:00,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:02:00,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:00,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:00,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:00,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 131 states and 189 transitions. [2020-12-01 18:02:00,905 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-12-01 18:02:00,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:02:00,905 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:00,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:00,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:00,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:00,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 133 states and 194 transitions. [2020-12-01 18:02:00,942 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 194 transitions. [2020-12-01 18:02:00,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:02:00,943 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:00,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 134 states and 196 transitions. [2020-12-01 18:02:00,972 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 196 transitions. [2020-12-01 18:02:00,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:02:00,973 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:01,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:01,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 134 states and 195 transitions. [2020-12-01 18:02:01,116 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 195 transitions. [2020-12-01 18:02:01,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:02:01,117 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:01,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:01,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:01,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 137 states and 201 transitions. [2020-12-01 18:02:01,413 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 201 transitions. [2020-12-01 18:02:01,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:02:01,414 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:01,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:01,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:01,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:01,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 142 states and 209 transitions. [2020-12-01 18:02:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 209 transitions. [2020-12-01 18:02:01,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:02:01,793 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:01,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:01,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:02,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:02,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 143 states and 210 transitions. [2020-12-01 18:02:02,112 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 210 transitions. [2020-12-01 18:02:02,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:02:02,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:02,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:03,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:03,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 145 states and 216 transitions. [2020-12-01 18:02:03,430 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 216 transitions. [2020-12-01 18:02:03,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:02:03,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:03,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:03,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:05,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:05,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 152 states and 233 transitions. [2020-12-01 18:02:05,064 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 233 transitions. [2020-12-01 18:02:05,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:02:05,064 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:05,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 156 states and 243 transitions. [2020-12-01 18:02:06,564 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 243 transitions. [2020-12-01 18:02:06,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:02:06,565 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:06,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:09,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:09,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 160 states and 254 transitions. [2020-12-01 18:02:09,535 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 254 transitions. [2020-12-01 18:02:09,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:02:09,535 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:09,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:14,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:14,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 170 states and 280 transitions. [2020-12-01 18:02:14,310 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 280 transitions. [2020-12-01 18:02:14,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:02:14,311 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:15,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:18,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:18,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 176 states and 296 transitions. [2020-12-01 18:02:18,033 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 296 transitions. [2020-12-01 18:02:18,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:02:18,034 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:20,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:20,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 180 states and 304 transitions. [2020-12-01 18:02:20,100 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 304 transitions. [2020-12-01 18:02:20,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:02:20,101 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:20,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:20,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:20,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:20,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 181 states and 304 transitions. [2020-12-01 18:02:20,161 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 304 transitions. [2020-12-01 18:02:20,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:20,163 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:20,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:20,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:20,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 180 states and 303 transitions. [2020-12-01 18:02:20,213 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 303 transitions. [2020-12-01 18:02:20,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:20,216 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:20,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:21,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:21,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 182 states and 306 transitions. [2020-12-01 18:02:21,174 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 306 transitions. [2020-12-01 18:02:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:21,174 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:21,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:23,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 187 states and 321 transitions. [2020-12-01 18:02:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 321 transitions. [2020-12-01 18:02:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:23,705 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:23,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:24,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:24,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 189 states and 325 transitions. [2020-12-01 18:02:24,272 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 325 transitions. [2020-12-01 18:02:24,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:24,272 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:24,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:25,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:25,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 192 states and 330 transitions. [2020-12-01 18:02:25,841 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 330 transitions. [2020-12-01 18:02:25,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:25,841 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:26,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:26,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 193 states and 331 transitions. [2020-12-01 18:02:26,312 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 331 transitions. [2020-12-01 18:02:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:26,312 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:26,329 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:27,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 198 states and 346 transitions. [2020-12-01 18:02:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 346 transitions. [2020-12-01 18:02:27,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:02:27,280 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:27,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:28,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:28,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 201 states and 353 transitions. [2020-12-01 18:02:28,798 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 353 transitions. [2020-12-01 18:02:28,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:28,799 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:28,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:29,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:29,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 203 states and 355 transitions. [2020-12-01 18:02:29,528 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 355 transitions. [2020-12-01 18:02:29,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:29,529 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:30,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:38,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:38,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 216 states and 387 transitions. [2020-12-01 18:02:38,982 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 387 transitions. [2020-12-01 18:02:38,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:38,983 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:38,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:39,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:39,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 215 states and 386 transitions. [2020-12-01 18:02:39,014 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 386 transitions. [2020-12-01 18:02:39,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:39,015 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:39,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:40,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:40,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 218 states and 391 transitions. [2020-12-01 18:02:40,551 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 391 transitions. [2020-12-01 18:02:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:40,552 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:40,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:43,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:43,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 225 states and 406 transitions. [2020-12-01 18:02:43,863 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 406 transitions. [2020-12-01 18:02:43,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-01 18:02:43,864 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:43,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:47,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 232 states and 423 transitions. [2020-12-01 18:02:47,940 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 423 transitions. [2020-12-01 18:02:47,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:02:47,940 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:47,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:49,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 235 states and 426 transitions. [2020-12-01 18:02:49,646 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 426 transitions. [2020-12-01 18:02:49,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:02:49,646 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:49,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:51,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 234 states and 425 transitions. [2020-12-01 18:02:51,052 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 425 transitions. [2020-12-01 18:02:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:02:51,053 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:51,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:51,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:02:51,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 235 states and 425 transitions. [2020-12-01 18:02:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 425 transitions. [2020-12-01 18:02:51,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:02:51,558 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:02:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:02:53,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:02:57,516 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-12-01 18:03:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:01,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 241 states and 443 transitions. [2020-12-01 18:03:01,990 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 443 transitions. [2020-12-01 18:03:01,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:03:01,990 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:02,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:05,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:05,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 245 states and 449 transitions. [2020-12-01 18:03:05,407 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 449 transitions. [2020-12-01 18:03:05,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:03:05,407 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:05,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 249 states and 456 transitions. [2020-12-01 18:03:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 456 transitions. [2020-12-01 18:03:10,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:03:10,885 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:10,906 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:10,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:10,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 250 states and 456 transitions. [2020-12-01 18:03:10,927 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 456 transitions. [2020-12-01 18:03:10,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-01 18:03:10,928 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:11,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:11,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 251 states and 456 transitions. [2020-12-01 18:03:11,014 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 456 transitions. [2020-12-01 18:03:11,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 18:03:11,014 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:11,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:14,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:14,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 254 states and 464 transitions. [2020-12-01 18:03:14,105 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 464 transitions. [2020-12-01 18:03:14,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-01 18:03:14,105 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:14,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:16,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:24,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:24,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 260 states and 477 transitions. [2020-12-01 18:03:24,989 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 477 transitions. [2020-12-01 18:03:24,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:03:24,989 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:38,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:38,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 267 states and 494 transitions. [2020-12-01 18:03:38,018 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 494 transitions. [2020-12-01 18:03:38,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:03:38,018 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:38,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:40,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 270 states and 501 transitions. [2020-12-01 18:03:40,883 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 501 transitions. [2020-12-01 18:03:40,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:03:40,884 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:40,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:43,432 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:51,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:51,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 278 states and 521 transitions. [2020-12-01 18:03:51,706 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 521 transitions. [2020-12-01 18:03:51,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-01 18:03:51,707 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:51,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:54,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:03:58,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:03:58,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 282 states and 529 transitions. [2020-12-01 18:03:58,120 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 529 transitions. [2020-12-01 18:03:58,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:03:58,121 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:03:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:03:58,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:04:00,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:04:00,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 285 states and 533 transitions. [2020-12-01 18:04:00,663 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 533 transitions. [2020-12-01 18:04:00,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:04:00,664 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:04:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:00,678 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:00,693 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:00,788 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:00,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:04:00,819 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:04:01,504 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 64 iterations. [2020-12-01 18:04:01,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:04:01 ImpRootNode [2020-12-01 18:04:01,544 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:04:01,545 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:04:01,545 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:04:01,545 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:04:01,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:01:52" (3/4) ... [2020-12-01 18:04:01,547 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:04:01,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_af5a2a48-13fd-45ee-af0a-bc60fbf96550/bin/ukojak/witness.graphml [2020-12-01 18:04:01,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:04:01,608 INFO L168 Benchmark]: Toolchain (without parser) took 130525.11 ms. Allocated memory was 111.1 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 81.6 MB in the beginning and 639.9 MB in the end (delta: -558.3 MB). Peak memory consumption was 673.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,608 INFO L168 Benchmark]: CDTParser took 0.64 ms. Allocated memory is still 111.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:04:01,609 INFO L168 Benchmark]: CACSL2BoogieTranslator took 558.71 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 74.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,610 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.26 ms. Allocated memory is still 111.1 MB. Free memory was 74.0 MB in the beginning and 72.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:04:01,610 INFO L168 Benchmark]: Boogie Preprocessor took 46.14 ms. Allocated memory is still 111.1 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,611 INFO L168 Benchmark]: RCFGBuilder took 839.38 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 70.2 MB in the beginning and 97.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,612 INFO L168 Benchmark]: CodeCheck took 128961.39 ms. Allocated memory was 146.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 97.0 MB in the beginning and 642.0 MB in the end (delta: -545.0 MB). Peak memory consumption was 651.3 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,613 INFO L168 Benchmark]: Witness Printer took 61.47 ms. Allocated memory is still 1.3 GB. Free memory was 642.0 MB in the beginning and 639.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:04:01,617 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 96 locations, 46 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 128.8s, OverallIterations: 64, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: -2079817596 SDtfs, -1245729136 SDslu, 1242156412 SDs, 0 SdLazy, -405170998 SolverSat, 1996860802 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 43.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7286 GetRequests, 6436 SyntacticMatches, 208 SemanticMatches, 642 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229281 ImplicationChecksByTransitivity, 122.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 23.0s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 724 ConstructedInterpolants, 0 QuantifiedInterpolants, 90054 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 63 InterpolantComputations, 54 PerfectInterpolantSequences, 6/23 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: 985]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L996] SLL* head = malloc(sizeof(SLL)); [L997] head->next = head [L998] head->data = 0 [L1000] SLL* x = head; [L1001] int state = 1; [L1004] COND FALSE !(__VERIFIER_nondet_int()) [L1025] x->data = state [L1027] EXPR head->next [L1027] x = head->next [L1028] COND FALSE !(!(((void*)0) != x)) [L1030] EXPR x->data [L1030] COND TRUE x->data != 0 [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] EXPR x->data [L1032] EXPR x->next [L1032] EXPR x->next->data [L1032] EXPR x->next->data != 0 && x->data > x->next->data [L1032] COND TRUE !(x->next->data != 0 && x->data > x->next->data) [L985] COND FALSE !(0) [L985] __assert_fail ("0", "sll-circular-2.c", 14, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.64 ms. Allocated memory is still 111.1 MB. Free memory is still 68.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 558.71 ms. Allocated memory is still 111.1 MB. Free memory was 81.3 MB in the beginning and 74.0 MB in the end (delta: 7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.26 ms. Allocated memory is still 111.1 MB. Free memory was 74.0 MB in the beginning and 72.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.14 ms. Allocated memory is still 111.1 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 839.38 ms. Allocated memory was 111.1 MB in the beginning and 146.8 MB in the end (delta: 35.7 MB). Free memory was 70.2 MB in the beginning and 97.0 MB in the end (delta: -26.8 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. * CodeCheck took 128961.39 ms. Allocated memory was 146.8 MB in the beginning and 1.3 GB in the end (delta: 1.2 GB). Free memory was 97.0 MB in the beginning and 642.0 MB in the end (delta: -545.0 MB). Peak memory consumption was 651.3 MB. Max. memory is 16.1 GB. * Witness Printer took 61.47 ms. Allocated memory is still 1.3 GB. Free memory was 642.0 MB in the beginning and 639.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...