./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 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-properties/alternating_list-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/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 da856cb29218eae000c82400da3ef1c667e9f55c ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 18:22:57,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 18:22:57,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 18:22:57,993 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 18:22:57,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 18:22:58,003 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 18:22:58,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 18:22:58,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 18:22:58,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 18:22:58,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 18:22:58,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 18:22:58,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 18:22:58,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 18:22:58,046 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 18:22:58,048 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 18:22:58,050 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 18:22:58,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 18:22:58,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 18:22:58,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 18:22:58,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 18:22:58,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 18:22:58,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 18:22:58,079 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 18:22:58,080 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 18:22:58,085 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 18:22:58,085 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 18:22:58,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 18:22:58,089 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 18:22:58,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 18:22:58,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 18:22:58,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 18:22:58,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 18:22:58,100 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 18:22:58,102 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 18:22:58,103 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 18:22:58,104 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 18:22:58,106 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 18:22:58,106 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 18:22:58,107 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 18:22:58,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 18:22:58,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 18:22:58,117 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2020-12-01 18:22:58,173 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 18:22:58,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 18:22:58,177 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 18:22:58,178 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 18:22:58,178 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 18:22:58,178 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 18:22:58,178 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-01 18:22:58,179 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 18:22:58,179 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 18:22:58,179 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 18:22:58,181 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-01 18:22:58,181 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-01 18:22:58,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 18:22:58,182 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 18:22:58,182 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 18:22:58,183 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-12-01 18:22:58,183 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-12-01 18:22:58,183 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 18:22:58,183 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 18:22:58,184 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-12-01 18:22:58,184 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 18:22:58,184 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 18:22:58,184 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-12-01 18:22:58,185 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 18:22:58,185 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_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> da856cb29218eae000c82400da3ef1c667e9f55c [2020-12-01 18:22:58,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 18:22:58,637 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 18:22:58,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 18:22:58,694 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 18:22:58,695 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 18:22:58,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/../../sv-benchmarks/c/list-properties/alternating_list-2.i [2020-12-01 18:22:58,866 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/data/b5eb85455/47b8e42ac8b74e7fa041924245534317/FLAG0c7391dc0 [2020-12-01 18:22:59,832 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 18:22:59,833 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/sv-benchmarks/c/list-properties/alternating_list-2.i [2020-12-01 18:22:59,852 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/data/b5eb85455/47b8e42ac8b74e7fa041924245534317/FLAG0c7391dc0 [2020-12-01 18:23:00,037 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/data/b5eb85455/47b8e42ac8b74e7fa041924245534317 [2020-12-01 18:23:00,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 18:23:00,044 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 18:23:00,053 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 18:23:00,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 18:23:00,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 18:23:00,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1767d487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00, skipping insertion in model container [2020-12-01 18:23:00,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 18:23:00,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 18:23:00,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:23:00,674 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 18:23:00,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 18:23:00,859 INFO L208 MainTranslator]: Completed translation [2020-12-01 18:23:00,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00 WrapperNode [2020-12-01 18:23:00,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 18:23:00,863 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 18:23:00,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 18:23:00,863 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 18:23:00,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 18:23:00,970 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 18:23:00,970 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 18:23:00,970 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 18:23:00,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:00,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:01,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:01,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:01,021 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... [2020-12-01 18:23:01,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 18:23:01,026 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 18:23:01,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 18:23:01,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 18:23:01,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 06:23:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/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 18:23:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 18:23:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 18:23:01,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-01 18:23:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-01 18:23:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 18:23:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-01 18:23:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 18:23:01,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 18:23:01,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 18:23:01,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 18:23:01,744 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 18:23:01,744 INFO L298 CfgBuilder]: Removed 13 assume(true) statements. [2020-12-01 18:23:01,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:01 BoogieIcfgContainer [2020-12-01 18:23:01,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 18:23:01,749 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-12-01 18:23:01,749 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-12-01 18:23:01,777 INFO L275 PluginConnector]: CodeCheck initialized [2020-12-01 18:23:01,786 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:01" (1/1) ... [2020-12-01 18:23:01,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 18:23:01,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:01,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 68 states and 80 transitions. [2020-12-01 18:23:01,860 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2020-12-01 18:23:01,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-01 18:23:01,863 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:02,032 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 18:23:02,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 68 states and 79 transitions. [2020-12-01 18:23:02,043 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2020-12-01 18:23:02,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:23:02,044 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:02,163 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 18:23:02,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:02,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 71 states and 84 transitions. [2020-12-01 18:23:02,225 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2020-12-01 18:23:02,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-01 18:23:02,225 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:02,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:02,375 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 18:23:02,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:02,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 74 states and 89 transitions. [2020-12-01 18:23:02,722 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 89 transitions. [2020-12-01 18:23:02,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:23:02,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:02,861 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 18:23:03,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:03,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 78 states and 96 transitions. [2020-12-01 18:23:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2020-12-01 18:23:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:23:03,030 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:03,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:03,144 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 18:23:03,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:03,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 82 states and 104 transitions. [2020-12-01 18:23:03,329 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 104 transitions. [2020-12-01 18:23:03,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:23:03,330 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:03,408 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 18:23:03,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 84 states and 107 transitions. [2020-12-01 18:23:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 107 transitions. [2020-12-01 18:23:03,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:23:03,425 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:03,512 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 18:23:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:03,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 86 states and 110 transitions. [2020-12-01 18:23:03,544 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2020-12-01 18:23:03,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-01 18:23:03,544 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:03,615 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 18:23:04,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:04,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 89 states and 117 transitions. [2020-12-01 18:23:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2020-12-01 18:23:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:04,262 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:04,357 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 18:23:04,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:04,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 93 states and 124 transitions. [2020-12-01 18:23:04,423 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2020-12-01 18:23:04,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:04,427 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:04,530 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 18:23:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:04,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 97 states and 132 transitions. [2020-12-01 18:23:04,588 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 132 transitions. [2020-12-01 18:23:04,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:04,589 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:04,610 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 18:23:04,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 100 states and 140 transitions. [2020-12-01 18:23:04,646 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 140 transitions. [2020-12-01 18:23:04,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:04,647 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:04,690 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 18:23:05,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:05,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 102 states and 145 transitions. [2020-12-01 18:23:05,049 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2020-12-01 18:23:05,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:05,052 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:05,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:05,254 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 18:23:06,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:06,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 105 states and 153 transitions. [2020-12-01 18:23:06,087 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 153 transitions. [2020-12-01 18:23:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:06,088 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:06,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:06,131 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 18:23:06,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:06,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 104 states and 152 transitions. [2020-12-01 18:23:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 152 transitions. [2020-12-01 18:23:06,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 18:23:06,173 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:06,511 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 18:23:06,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:06,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 107 states and 158 transitions. [2020-12-01 18:23:06,999 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 158 transitions. [2020-12-01 18:23:07,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:23:07,001 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,096 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 18:23:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 108 states and 165 transitions. [2020-12-01 18:23:07,140 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 165 transitions. [2020-12-01 18:23:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 18:23:07,150 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,170 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 18:23:07,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 108 states and 164 transitions. [2020-12-01 18:23:07,298 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 164 transitions. [2020-12-01 18:23:07,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:07,304 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,332 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 18:23:07,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 110 states and 167 transitions. [2020-12-01 18:23:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 167 transitions. [2020-12-01 18:23:07,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:07,360 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,408 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 18:23:07,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 111 states and 169 transitions. [2020-12-01 18:23:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 169 transitions. [2020-12-01 18:23:07,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:07,605 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,692 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 18:23:07,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 113 states and 172 transitions. [2020-12-01 18:23:07,848 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 172 transitions. [2020-12-01 18:23:07,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:07,849 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,879 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 18:23:07,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:07,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 114 states and 174 transitions. [2020-12-01 18:23:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 174 transitions. [2020-12-01 18:23:07,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 18:23:07,921 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:07,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:07,980 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 18:23:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:08,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 119 states and 190 transitions. [2020-12-01 18:23:08,545 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 190 transitions. [2020-12-01 18:23:08,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:23:08,546 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:08,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:08,673 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 18:23:10,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:10,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 129 states and 213 transitions. [2020-12-01 18:23:10,314 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 213 transitions. [2020-12-01 18:23:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:23:10,315 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:10,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:10,381 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 18:23:10,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:10,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 130 states and 214 transitions. [2020-12-01 18:23:10,714 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 214 transitions. [2020-12-01 18:23:10,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 18:23:10,715 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:10,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:12,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:12,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 135 states and 226 transitions. [2020-12-01 18:23:12,778 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 226 transitions. [2020-12-01 18:23:12,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:23:12,778 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:12,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:12,794 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 18:23:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 134 states and 225 transitions. [2020-12-01 18:23:13,410 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 225 transitions. [2020-12-01 18:23:13,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:23:13,413 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:13,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:13,719 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 18:23:14,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:14,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 137 states and 229 transitions. [2020-12-01 18:23:14,872 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 229 transitions. [2020-12-01 18:23:14,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:23:14,875 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:14,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:15,145 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 18:23:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:15,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 137 states and 228 transitions. [2020-12-01 18:23:15,962 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 228 transitions. [2020-12-01 18:23:15,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 18:23:15,963 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:15,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:16,247 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 18:23:17,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:17,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 137 states and 227 transitions. [2020-12-01 18:23:17,509 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 227 transitions. [2020-12-01 18:23:17,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:17,510 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:17,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:18,150 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 18:23:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 149 states and 251 transitions. [2020-12-01 18:23:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 251 transitions. [2020-12-01 18:23:24,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:24,051 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:24,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:24,555 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 18:23:25,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:25,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 152 states and 260 transitions. [2020-12-01 18:23:25,946 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 260 transitions. [2020-12-01 18:23:25,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:25,947 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:25,974 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:26,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:26,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 130 states and 218 transitions. [2020-12-01 18:23:26,005 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 218 transitions. [2020-12-01 18:23:26,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:26,006 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:26,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:26,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:26,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 129 states and 217 transitions. [2020-12-01 18:23:26,290 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 217 transitions. [2020-12-01 18:23:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:26,291 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:26,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:26,689 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 18:23:29,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:29,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 135 states and 233 transitions. [2020-12-01 18:23:29,365 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 233 transitions. [2020-12-01 18:23:29,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-01 18:23:29,366 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:30,022 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 18:23:33,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:33,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 141 states and 241 transitions. [2020-12-01 18:23:33,216 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 241 transitions. [2020-12-01 18:23:33,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 18:23:33,217 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:37,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 146 states and 252 transitions. [2020-12-01 18:23:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 252 transitions. [2020-12-01 18:23:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:23:37,743 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:39,336 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:48,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 158 states and 276 transitions. [2020-12-01 18:23:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 276 transitions. [2020-12-01 18:23:48,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:23:48,757 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:48,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:23:52,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:52,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 164 states and 284 transitions. [2020-12-01 18:23:52,343 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 284 transitions. [2020-12-01 18:23:52,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:23:52,343 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:52,366 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-01 18:23:53,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:53,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 166 states and 288 transitions. [2020-12-01 18:23:53,193 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 288 transitions. [2020-12-01 18:23:53,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-01 18:23:53,194 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:53,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 18:23:53,243 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 18:23:54,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-12-01 18:23:54,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 168 states and 291 transitions. [2020-12-01 18:23:54,090 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 291 transitions. [2020-12-01 18:23:54,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-12-01 18:23:54,091 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-12-01 18:23:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:54,105 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:54,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:54,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:54,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 18:23:54,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 18:23:54,722 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 41 iterations. [2020-12-01 18:23:54,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 01.12 06:23:54 ImpRootNode [2020-12-01 18:23:54,784 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-12-01 18:23:54,785 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 18:23:54,785 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 18:23:54,785 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 18:23:54,786 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 06:23:01" (3/4) ... [2020-12-01 18:23:54,789 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-01 18:23:54,846 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cab714d2-a6c6-418c-96ce-1f56d3ba1bab/bin/ukojak/witness.graphml [2020-12-01 18:23:54,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 18:23:54,849 INFO L168 Benchmark]: Toolchain (without parser) took 54803.39 ms. Allocated memory was 77.6 MB in the beginning and 545.3 MB in the end (delta: 467.7 MB). Free memory was 40.3 MB in the beginning and 302.0 MB in the end (delta: -261.7 MB). Peak memory consumption was 207.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,850 INFO L168 Benchmark]: CDTParser took 1.08 ms. Allocated memory is still 77.6 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:23:54,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 807.81 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 40.1 MB in the beginning and 68.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,852 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.80 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 66.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 18:23:54,853 INFO L168 Benchmark]: Boogie Preprocessor took 55.21 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 64.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,854 INFO L168 Benchmark]: RCFGBuilder took 721.75 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 31.2 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,855 INFO L168 Benchmark]: CodeCheck took 53035.53 ms. Allocated memory was 102.8 MB in the beginning and 545.3 MB in the end (delta: 442.5 MB). Free memory was 31.2 MB in the beginning and 305.1 MB in the end (delta: -274.0 MB). Peak memory consumption was 167.7 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,856 INFO L168 Benchmark]: Witness Printer took 61.17 ms. Allocated memory is still 545.3 MB. Free memory was 305.1 MB in the beginning and 302.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 18:23:54,861 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, 68 locations, 30 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 52.8s, OverallIterations: 41, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1766850560 SDtfs, -386841232 SDslu, 51797624 SDs, 0 SdLazy, -869954058 SolverSat, 593119614 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4336 GetRequests, 3833 SyntacticMatches, 107 SemanticMatches, 396 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78159 ImplicationChecksByTransitivity, 47.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 409 ConstructedInterpolants, 0 QuantifiedInterpolants, 29479 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 40 InterpolantComputations, 36 PerfectInterpolantSequences, 18/26 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: 12]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L532] int flag = 1; [L533] List a = (List) malloc(sizeof(struct node)); [L534] COND FALSE !(a == 0) [L535] List t; [L536] List p = a; [L537] COND TRUE __VERIFIER_nondet_int() [L538] COND TRUE \read(flag) [L539] p->h = 2 [L540] flag = 0 [L545] t = (List) malloc(sizeof(struct node)) [L546] COND FALSE !(t == 0) [L547] p->n = t [L548] EXPR p->n [L548] p = p->n [L537] COND FALSE !(__VERIFIER_nondet_int()) [L550] p->h = 3 [L551] p = a [L552] flag = 1 [L553] EXPR p->h [L553] COND TRUE p->h != 3 [L554] COND TRUE \read(flag) [L555] flag = 0 [L556] EXPR p->h [L556] COND TRUE p->h != 1 [L12] COND FALSE !(0) [L12] __assert_fail ("0", "alternating_list-2.c", 3, __extension__ __PRETTY_FUNCTION__) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08 ms. Allocated memory is still 77.6 MB. Free memory is still 57.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 807.81 ms. Allocated memory was 77.6 MB in the beginning and 102.8 MB in the end (delta: 25.2 MB). Free memory was 40.1 MB in the beginning and 68.0 MB in the end (delta: -28.0 MB). Peak memory consumption was 10.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.80 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 66.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.21 ms. Allocated memory is still 102.8 MB. Free memory was 66.0 MB in the beginning and 64.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 721.75 ms. Allocated memory is still 102.8 MB. Free memory was 64.1 MB in the beginning and 31.2 MB in the end (delta: 32.9 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * CodeCheck took 53035.53 ms. Allocated memory was 102.8 MB in the beginning and 545.3 MB in the end (delta: 442.5 MB). Free memory was 31.2 MB in the beginning and 305.1 MB in the end (delta: -274.0 MB). Peak memory consumption was 167.7 MB. Max. memory is 16.1 GB. * Witness Printer took 61.17 ms. Allocated memory is still 545.3 MB. Free memory was 305.1 MB in the beginning and 302.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...