./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-properties/alternating_list-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/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 9c54128245d3ab9ad313da188c7be33f66027c6a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-01 11:39:36,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-01 11:39:36,711 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-01 11:39:36,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-01 11:39:36,719 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-01 11:39:36,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-01 11:39:36,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-01 11:39:36,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-01 11:39:36,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-01 11:39:36,723 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-01 11:39:36,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-01 11:39:36,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-01 11:39:36,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-01 11:39:36,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-01 11:39:36,726 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-01 11:39:36,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-01 11:39:36,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-01 11:39:36,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-01 11:39:36,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-01 11:39:36,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-01 11:39:36,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-01 11:39:36,733 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-01 11:39:36,734 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-01 11:39:36,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-01 11:39:36,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-01 11:39:36,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-01 11:39:36,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-01 11:39:36,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-01 11:39:36,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-01 11:39:36,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-01 11:39:36,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-01 11:39:36,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-01 11:39:36,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-01 11:39:36,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-01 11:39:36,739 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-01 11:39:36,740 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-01 11:39:36,740 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-01 11:39:36,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-01 11:39:36,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-01 11:39:36,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-01 11:39:36,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-01 11:39:36,742 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2019-12-01 11:39:36,751 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-01 11:39:36,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-01 11:39:36,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-01 11:39:36,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-01 11:39:36,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-01 11:39:36,752 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2019-12-01 11:39:36,753 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-01 11:39:36,754 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-01 11:39:36,754 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-01 11:39:36,754 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-12-01 11:39:36,754 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-12-01 11:39:36,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-01 11:39:36,754 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-01 11:39:36,754 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 11:39:36,755 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-01 11:39:36,755 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-01 11:39:36,755 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-12-01 11:39:36,755 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-01 11:39:36,755 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/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 -> 9c54128245d3ab9ad313da188c7be33f66027c6a [2019-12-01 11:39:36,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-01 11:39:36,863 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-01 11:39:36,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-01 11:39:36,866 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-01 11:39:36,866 INFO L275 PluginConnector]: CDTParser initialized [2019-12-01 11:39:36,867 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2019-12-01 11:39:36,903 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/data/924a4689c/4c5fde66432f4b63be1d8fce9c5cba76/FLAGbf16d07d2 [2019-12-01 11:39:37,342 INFO L306 CDTParser]: Found 1 translation units. [2019-12-01 11:39:37,342 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/sv-benchmarks/c/list-properties/alternating_list-2.i [2019-12-01 11:39:37,351 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/data/924a4689c/4c5fde66432f4b63be1d8fce9c5cba76/FLAGbf16d07d2 [2019-12-01 11:39:37,359 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/data/924a4689c/4c5fde66432f4b63be1d8fce9c5cba76 [2019-12-01 11:39:37,361 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-01 11:39:37,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-01 11:39:37,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-01 11:39:37,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-01 11:39:37,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-01 11:39:37,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e9050c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37, skipping insertion in model container [2019-12-01 11:39:37,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-01 11:39:37,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-01 11:39:37,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:39:37,602 INFO L203 MainTranslator]: Completed pre-run [2019-12-01 11:39:37,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-01 11:39:37,660 INFO L208 MainTranslator]: Completed translation [2019-12-01 11:39:37,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37 WrapperNode [2019-12-01 11:39:37,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-01 11:39:37,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-01 11:39:37,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-01 11:39:37,662 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-01 11:39:37,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-01 11:39:37,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-01 11:39:37,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-01 11:39:37,693 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-01 11:39:37,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,711 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... [2019-12-01 11:39:37,713 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-01 11:39:37,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-01 11:39:37,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-01 11:39:37,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-01 11:39:37,714 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:39:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-12-01 11:39:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-01 11:39:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-01 11:39:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-12-01 11:39:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-01 11:39:37,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-01 11:39:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-01 11:39:37,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-01 11:39:37,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-01 11:39:38,029 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-01 11:39:38,029 INFO L287 CfgBuilder]: Removed 11 assume(true) statements. [2019-12-01 11:39:38,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:39:38 BoogieIcfgContainer [2019-12-01 11:39:38,031 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-01 11:39:38,031 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-12-01 11:39:38,031 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-12-01 11:39:38,040 INFO L275 PluginConnector]: CodeCheck initialized [2019-12-01 11:39:38,041 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:39:38" (1/1) ... [2019-12-01 11:39:38,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-01 11:39:38,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 65 states and 76 transitions. [2019-12-01 11:39:38,073 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2019-12-01 11:39:38,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-01 11:39:38,076 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 65 states and 75 transitions. [2019-12-01 11:39:38,162 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 75 transitions. [2019-12-01 11:39:38,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 11:39:38,162 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 68 states and 80 transitions. [2019-12-01 11:39:38,231 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2019-12-01 11:39:38,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-01 11:39:38,232 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 71 states and 85 transitions. [2019-12-01 11:39:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 85 transitions. [2019-12-01 11:39:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:39:38,431 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 75 states and 93 transitions. [2019-12-01 11:39:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 93 transitions. [2019-12-01 11:39:38,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:39:38,566 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 79 states and 102 transitions. [2019-12-01 11:39:38,719 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 102 transitions. [2019-12-01 11:39:38,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:39:38,720 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 81 states and 105 transitions. [2019-12-01 11:39:38,742 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 105 transitions. [2019-12-01 11:39:38,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:39:38,742 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:38,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:38,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 83 states and 108 transitions. [2019-12-01 11:39:38,774 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2019-12-01 11:39:38,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-01 11:39:38,774 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:38,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:39,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:39,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 86 states and 115 transitions. [2019-12-01 11:39:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 115 transitions. [2019-12-01 11:39:39,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:39,162 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:39,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:39,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:39,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 90 states and 122 transitions. [2019-12-01 11:39:39,299 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2019-12-01 11:39:39,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:39,299 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:39,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:39,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:39,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:39,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 94 states and 130 transitions. [2019-12-01 11:39:39,464 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2019-12-01 11:39:39,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:39,465 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:39,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:39,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 97 states and 138 transitions. [2019-12-01 11:39:39,758 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 138 transitions. [2019-12-01 11:39:39,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:39,758 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:39,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:39,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:39,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 99 states and 143 transitions. [2019-12-01 11:39:39,948 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 143 transitions. [2019-12-01 11:39:39,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:39,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:40,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 101 states and 147 transitions. [2019-12-01 11:39:40,594 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2019-12-01 11:39:40,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:40,595 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:40,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:40,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:40,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 100 states and 146 transitions. [2019-12-01 11:39:40,651 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 146 transitions. [2019-12-01 11:39:40,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-01 11:39:40,651 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:40,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:40,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:40,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:40,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 103 states and 151 transitions. [2019-12-01 11:39:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 151 transitions. [2019-12-01 11:39:40,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:39:40,821 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:40,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:40,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:40,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 102 states and 150 transitions. [2019-12-01 11:39:40,971 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 150 transitions. [2019-12-01 11:39:40,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-01 11:39:40,971 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:41,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 101 states and 149 transitions. [2019-12-01 11:39:41,103 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 149 transitions. [2019-12-01 11:39:41,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:39:41,104 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:41,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:41,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 103 states and 152 transitions. [2019-12-01 11:39:41,309 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 152 transitions. [2019-12-01 11:39:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:39:41,310 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:41,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:41,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:41,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:41,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 104 states and 154 transitions. [2019-12-01 11:39:41,454 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 154 transitions. [2019-12-01 11:39:41,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:39:41,455 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:41,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:41,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 106 states and 157 transitions. [2019-12-01 11:39:41,605 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 157 transitions. [2019-12-01 11:39:41,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-01 11:39:41,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:41,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:42,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:42,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 108 states and 162 transitions. [2019-12-01 11:39:42,513 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 162 transitions. [2019-12-01 11:39:42,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:39:42,514 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:42,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:42,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:46,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 118 states and 183 transitions. [2019-12-01 11:39:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 183 transitions. [2019-12-01 11:39:46,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-01 11:39:46,081 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:46,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:46,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:46,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:46,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 119 states and 184 transitions. [2019-12-01 11:39:46,550 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 184 transitions. [2019-12-01 11:39:46,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:39:46,551 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:46,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:46,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:46,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 118 states and 183 transitions. [2019-12-01 11:39:46,910 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 183 transitions. [2019-12-01 11:39:46,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:39:46,911 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:46,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:46,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:47,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:47,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 121 states and 186 transitions. [2019-12-01 11:39:47,458 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 186 transitions. [2019-12-01 11:39:47,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:39:47,458 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:47,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:48,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 122 states and 187 transitions. [2019-12-01 11:39:48,200 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 187 transitions. [2019-12-01 11:39:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-01 11:39:48,200 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:49,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 123 states and 188 transitions. [2019-12-01 11:39:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 188 transitions. [2019-12-01 11:39:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:49,416 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:49,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:54,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:54,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 135 states and 211 transitions. [2019-12-01 11:39:54,230 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 211 transitions. [2019-12-01 11:39:54,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:54,231 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:54,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:55,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:55,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 138 states and 219 transitions. [2019-12-01 11:39:55,398 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 219 transitions. [2019-12-01 11:39:55,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:55,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:55,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:55,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:55,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 117 states and 185 transitions. [2019-12-01 11:39:55,426 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 185 transitions. [2019-12-01 11:39:55,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:55,426 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:55,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:56,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:59,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:59,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 124 states and 207 transitions. [2019-12-01 11:39:59,786 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 207 transitions. [2019-12-01 11:39:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:59,788 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:39:59,810 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:39:59,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:39:59,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 123 states and 206 transitions. [2019-12-01 11:39:59,948 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 206 transitions. [2019-12-01 11:39:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:39:59,949 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:39:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:00,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:40:00,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:00,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 126 states and 211 transitions. [2019-12-01 11:40:00,382 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 211 transitions. [2019-12-01 11:40:00,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-01 11:40:00,382 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:00,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:40:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:00,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 129 states and 216 transitions. [2019-12-01 11:40:00,816 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 216 transitions. [2019-12-01 11:40:00,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-12-01 11:40:00,816 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:01,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:40:06,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:06,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 134 states and 227 transitions. [2019-12-01 11:40:06,017 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 227 transitions. [2019-12-01 11:40:06,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:40:06,017 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:06,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 11:40:06,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:06,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 135 states and 230 transitions. [2019-12-01 11:40:06,409 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 230 transitions. [2019-12-01 11:40:06,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:40:06,410 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:06,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:06,425 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-01 11:40:07,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 139 states and 246 transitions. [2019-12-01 11:40:07,308 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 246 transitions. [2019-12-01 11:40:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:40:07,308 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:07,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:07,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 11:40:07,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:07,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 140 states and 249 transitions. [2019-12-01 11:40:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 249 transitions. [2019-12-01 11:40:07,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:40:07,737 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:07,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 11:40:08,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:08,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 140 states and 248 transitions. [2019-12-01 11:40:08,121 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 248 transitions. [2019-12-01 11:40:08,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-01 11:40:08,122 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:08,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-01 11:40:08,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-12-01 11:40:09,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-12-01 11:40:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 140 states and 247 transitions. [2019-12-01 11:40:09,260 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 247 transitions. [2019-12-01 11:40:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-01 11:40:09,261 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-12-01 11:40:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:40:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:40:09,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:40:09,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-01 11:40:09,346 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 41 iterations. [2019-12-01 11:40:09,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 11:40:09 ImpRootNode [2019-12-01 11:40:09,370 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-12-01 11:40:09,370 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-01 11:40:09,370 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-01 11:40:09,370 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-01 11:40:09,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:39:38" (3/4) ... [2019-12-01 11:40:09,372 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-12-01 11:40:09,410 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_01ff3ba7-05f3-4346-91b3-048ecd2ef6a0/bin/ukojak/witness.graphml [2019-12-01 11:40:09,411 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-01 11:40:09,412 INFO L168 Benchmark]: Toolchain (without parser) took 32049.75 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 314.0 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -74.7 MB). Peak memory consumption was 239.3 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,412 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 11:40:09,413 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,414 INFO L168 Benchmark]: Boogie Preprocessor took 20.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-01 11:40:09,414 INFO L168 Benchmark]: RCFGBuilder took 317.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,415 INFO L168 Benchmark]: CodeCheck took 31339.01 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.5 MB). Peak memory consumption was 229.9 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,415 INFO L168 Benchmark]: Witness Printer took 40.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-12-01 11:40:09,418 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 65 locations, 30 error locations. Result: UNSAFE, OverallTime: 31.2s, OverallIterations: 41, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 1765801984 SDtfs, -408673106 SDslu, 43598476 SDs, 0 SdLazy, 1571675888 SolverSat, 357686354 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4191 GetRequests, 3723 SyntacticMatches, 114 SemanticMatches, 354 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62980 ImplicationChecksByTransitivity, 29.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 464 NumberOfCodeBlocks, 464 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 405 ConstructedInterpolants, 0 QuantifiedInterpolants, 25125 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 36 PerfectInterpolantSequences, 19/27 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: 562]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L521] int flag = 1; [L522] List a = (List) malloc(sizeof(struct node)); [L523] COND FALSE !(a == 0) [L524] List t; [L525] List p = a; [L526] COND TRUE __VERIFIER_nondet_int() [L527] COND TRUE \read(flag) [L528] p->h = 2 [L529] flag = 0 [L534] t = (List) malloc(sizeof(struct node)) [L535] COND FALSE !(t == 0) [L536] p->n = t [L537] EXPR p->n [L537] p = p->n [L526] COND FALSE !(__VERIFIER_nondet_int()) [L539] p->h = 3 [L540] p = a [L541] flag = 1 [L542] EXPR p->h [L542] COND TRUE p->h != 3 [L543] COND TRUE \read(flag) [L544] flag = 0 [L545] EXPR p->h [L545] COND TRUE p->h != 1 [L562] __VERIFIER_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 298.62 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 89.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -128.8 MB). Peak memory consumption was 19.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.01 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.65 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 317.29 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * CodeCheck took 31339.01 ms. Allocated memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: 224.4 MB). Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.5 MB). Peak memory consumption was 229.9 MB. Max. memory is 11.5 GB. * Witness Printer took 40.43 ms. Allocated memory is still 1.3 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...