./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e --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 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:01:04,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:01:04,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:01:04,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:01:04,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:01:04,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:01:04,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:01:04,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:01:04,149 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:01:04,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:01:04,158 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:01:04,161 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:01:04,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:01:04,166 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:01:04,170 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:01:04,176 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:01:04,179 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:01:04,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:01:04,189 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:01:04,200 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:01:04,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:01:04,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:01:04,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:01:04,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:01:04,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:01:04,225 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:01:04,226 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:01:04,229 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:01:04,230 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:01:04,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:01:04,233 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:01:04,235 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:01:04,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:01:04,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:01:04,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:01:04,243 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:01:04,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:01:04,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:01:04,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:01:04,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:01:04,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:01:04,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2021-11-13 23:01:04,312 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:01:04,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:01:04,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:01:04,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:01:04,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:01:04,316 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:01:04,317 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 23:01:04,317 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:01:04,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:01:04,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:01:04,319 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-13 23:01:04,320 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-13 23:01:04,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:01:04,320 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:01:04,321 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:01:04,321 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:01:04,321 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:01:04,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:01:04,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:01:04,322 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:01:04,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:01:04,323 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:01:04,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:01:04,324 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_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 15d1d7d49ed223522c6431664b8ff836ebc81296f5e11773e2197361bd8b13cf [2021-11-13 23:01:04,705 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:01:04,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:01:04,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:01:04,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:01:04,767 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:01:04,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2021-11-13 23:01:04,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/data/f8e39a930/8ccd7a0b2565440794fcede1d5ca81bf/FLAGef5fc138a [2021-11-13 23:01:05,546 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:01:05,547 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/sv-benchmarks/c/heap-manipulation/merge_sort-1.i [2021-11-13 23:01:05,564 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/data/f8e39a930/8ccd7a0b2565440794fcede1d5ca81bf/FLAGef5fc138a [2021-11-13 23:01:05,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/data/f8e39a930/8ccd7a0b2565440794fcede1d5ca81bf [2021-11-13 23:01:05,810 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:01:05,811 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:01:05,830 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:01:05,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:01:05,835 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:01:05,836 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:01:05" (1/1) ... [2021-11-13 23:01:05,837 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@728a66a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:05, skipping insertion in model container [2021-11-13 23:01:05,837 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:01:05" (1/1) ... [2021-11-13 23:01:05,845 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:01:05,914 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:01:06,273 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2021-11-13 23:01:06,350 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:01:06,370 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:01:06,441 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/sv-benchmarks/c/heap-manipulation/merge_sort-1.i[22632,22645] [2021-11-13 23:01:06,465 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:01:06,519 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:01:06,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06 WrapperNode [2021-11-13 23:01:06,520 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:01:06,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:01:06,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:01:06,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:01:06,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:01:06,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:01:06,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:01:06,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:01:06,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,702 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,779 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:01:06,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:01:06,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:01:06,781 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:01:06,782 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:01:06" (1/1) ... [2021-11-13 23:01:06,797 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:01:06,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:01:06,828 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:01:06,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:01:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-13 23:01:06,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-13 23:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-13 23:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-13 23:01:06,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-13 23:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-13 23:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:01:06,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:01:06,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:01:08,275 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:01:08,275 INFO L299 CfgBuilder]: Removed 33 assume(true) statements. [2021-11-13 23:01:08,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:01:08 BoogieIcfgContainer [2021-11-13 23:01:08,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:01:08,281 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:01:08,281 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:01:08,295 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:01:08,295 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:01:08" (1/1) ... [2021-11-13 23:01:08,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:01:08,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 257 states and 313 transitions. [2021-11-13 23:01:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 313 transitions. [2021-11-13 23:01:08,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:01:08,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:08,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:08,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:08,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:08,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 256 states and 311 transitions. [2021-11-13 23:01:08,685 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 311 transitions. [2021-11-13 23:01:08,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-13 23:01:08,686 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:08,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:08,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:08,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:08,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 255 states and 310 transitions. [2021-11-13 23:01:08,893 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 310 transitions. [2021-11-13 23:01:08,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:01:08,893 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:08,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 259 states and 317 transitions. [2021-11-13 23:01:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 317 transitions. [2021-11-13 23:01:09,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:01:09,031 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 258 states and 316 transitions. [2021-11-13 23:01:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 316 transitions. [2021-11-13 23:01:09,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-13 23:01:09,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 257 states and 315 transitions. [2021-11-13 23:01:09,285 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 315 transitions. [2021-11-13 23:01:09,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:01:09,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 257 states and 312 transitions. [2021-11-13 23:01:09,355 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 312 transitions. [2021-11-13 23:01:09,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:01:09,356 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 260 states and 315 transitions. [2021-11-13 23:01:09,569 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 315 transitions. [2021-11-13 23:01:09,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:01:09,570 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 259 states and 314 transitions. [2021-11-13 23:01:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 314 transitions. [2021-11-13 23:01:09,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-13 23:01:09,716 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:09,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:09,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:09,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:09,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 258 states and 313 transitions. [2021-11-13 23:01:09,972 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 313 transitions. [2021-11-13 23:01:09,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:01:09,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:09,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:10,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:10,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:10,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 257 states and 312 transitions. [2021-11-13 23:01:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 312 transitions. [2021-11-13 23:01:10,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-13 23:01:10,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:10,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:10,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:10,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:10,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:10,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 256 states and 311 transitions. [2021-11-13 23:01:10,165 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 311 transitions. [2021-11-13 23:01:10,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-13 23:01:10,167 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:10,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:10,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:10,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:10,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 256 states and 309 transitions. [2021-11-13 23:01:10,574 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 309 transitions. [2021-11-13 23:01:10,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-13 23:01:10,575 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:10,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:10,686 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:10,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:10,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 254 states and 307 transitions. [2021-11-13 23:01:10,958 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 307 transitions. [2021-11-13 23:01:10,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 23:01:10,959 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:10,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:11,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:11,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 257 states and 312 transitions. [2021-11-13 23:01:11,543 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 312 transitions. [2021-11-13 23:01:11,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 23:01:11,543 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:11,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:11,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:11,771 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:12,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:12,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 260 states and 317 transitions. [2021-11-13 23:01:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 317 transitions. [2021-11-13 23:01:12,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 23:01:12,587 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:12,587 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:12,622 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:12,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:12,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 258 states and 314 transitions. [2021-11-13 23:01:12,838 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 314 transitions. [2021-11-13 23:01:12,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-13 23:01:12,838 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:12,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:12,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:12,875 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:13,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 256 states and 311 transitions. [2021-11-13 23:01:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 311 transitions. [2021-11-13 23:01:13,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:01:13,083 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,100 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:13,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 256 states and 307 transitions. [2021-11-13 23:01:13,106 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 307 transitions. [2021-11-13 23:01:13,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:01:13,107 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:13,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 259 states and 312 transitions. [2021-11-13 23:01:13,252 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 312 transitions. [2021-11-13 23:01:13,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:01:13,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 259 states and 308 transitions. [2021-11-13 23:01:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 308 transitions. [2021-11-13 23:01:13,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-13 23:01:13,286 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:13,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 260 states and 308 transitions. [2021-11-13 23:01:13,330 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 308 transitions. [2021-11-13 23:01:13,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:01:13,333 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:13,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 262 states and 311 transitions. [2021-11-13 23:01:13,381 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 311 transitions. [2021-11-13 23:01:13,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:01:13,384 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:13,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:13,562 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:14,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:14,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 266 states and 317 transitions. [2021-11-13 23:01:14,226 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 317 transitions. [2021-11-13 23:01:14,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:01:14,227 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:14,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:14,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:14,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 268 states and 320 transitions. [2021-11-13 23:01:14,269 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 320 transitions. [2021-11-13 23:01:14,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-13 23:01:14,270 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:14,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:14,338 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:14,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:14,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 271 states and 323 transitions. [2021-11-13 23:01:14,368 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 323 transitions. [2021-11-13 23:01:14,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 23:01:14,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:14,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:14,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:14,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:15,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:15,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 272 states and 323 transitions. [2021-11-13 23:01:15,814 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 323 transitions. [2021-11-13 23:01:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-13 23:01:15,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:15,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:16,017 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:16,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:16,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 273 states and 323 transitions. [2021-11-13 23:01:16,146 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 323 transitions. [2021-11-13 23:01:16,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:01:16,147 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:16,148 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:16,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:16,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:16,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 272 states and 320 transitions. [2021-11-13 23:01:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 320 transitions. [2021-11-13 23:01:16,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:01:16,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:16,436 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:16,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 275 states and 323 transitions. [2021-11-13 23:01:16,791 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 323 transitions. [2021-11-13 23:01:16,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:01:16,792 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:16,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:16,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:17,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 274 states and 320 transitions. [2021-11-13 23:01:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2021-11-13 23:01:17,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-13 23:01:17,140 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:17,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:17,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:17,178 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:17,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:17,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 277 states and 323 transitions. [2021-11-13 23:01:17,556 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 323 transitions. [2021-11-13 23:01:17,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 23:01:17,556 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:17,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:17,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:23,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 288 states and 338 transitions. [2021-11-13 23:01:23,051 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 338 transitions. [2021-11-13 23:01:23,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-13 23:01:23,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:23,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:23,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:25,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:25,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 293 states and 342 transitions. [2021-11-13 23:01:25,412 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 342 transitions. [2021-11-13 23:01:25,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 23:01:25,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:25,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:25,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:25,443 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:25,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:25,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 295 states and 343 transitions. [2021-11-13 23:01:25,730 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 343 transitions. [2021-11-13 23:01:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 23:01:25,731 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:25,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:25,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:26,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:26,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 298 states and 347 transitions. [2021-11-13 23:01:26,099 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 347 transitions. [2021-11-13 23:01:26,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 23:01:26,099 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:26,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:26,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:26,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:01:26,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:26,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 300 states and 348 transitions. [2021-11-13 23:01:26,413 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 348 transitions. [2021-11-13 23:01:26,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-13 23:01:26,414 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:26,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:26,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:26,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:26,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 303 states and 352 transitions. [2021-11-13 23:01:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 352 transitions. [2021-11-13 23:01:26,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:26,916 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:26,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:27,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:34,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 317 states and 372 transitions. [2021-11-13 23:01:34,174 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 372 transitions. [2021-11-13 23:01:34,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:34,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:34,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:34,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:35,081 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:42,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:42,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 331 states and 392 transitions. [2021-11-13 23:01:42,969 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 392 transitions. [2021-11-13 23:01:42,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:42,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:42,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:43,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:45,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:45,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 341 states and 404 transitions. [2021-11-13 23:01:45,693 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 404 transitions. [2021-11-13 23:01:45,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:45,693 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:45,693 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:45,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:45,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:46,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:46,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 339 states and 401 transitions. [2021-11-13 23:01:46,453 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 401 transitions. [2021-11-13 23:01:46,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:46,454 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:46,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:47,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:47,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 337 states and 398 transitions. [2021-11-13 23:01:47,352 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 398 transitions. [2021-11-13 23:01:47,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-13 23:01:47,352 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:47,352 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:01:47,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:01:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:01:51,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 347 states and 410 transitions. [2021-11-13 23:01:51,451 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 410 transitions. [2021-11-13 23:01:51,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-13 23:01:51,451 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:01:51,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:01:51,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:01:51,464 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:01:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:01:51,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:01:51,592 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 23:01:51,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 23:01:51,663 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 44 iterations. [2021-11-13 23:01:51,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:01:51 ImpRootNode [2021-11-13 23:01:51,709 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:01:51,710 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:01:51,725 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:01:51,726 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:01:51,726 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:01:08" (3/4) ... [2021-11-13 23:01:51,728 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-13 23:01:51,812 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:01:51,812 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:01:51,813 INFO L158 Benchmark]: Toolchain (without parser) took 46001.30ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 54.1MB in the beginning and 334.2MB in the end (delta: -280.1MB). Peak memory consumption was 19.0MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,814 INFO L158 Benchmark]: CDTParser took 0.85ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:01:51,814 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.72ms. Allocated memory is still 90.2MB. Free memory was 53.9MB in the beginning and 55.2MB in the end (delta: -1.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,815 INFO L158 Benchmark]: Boogie Procedure Inliner took 133.58ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 52.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,816 INFO L158 Benchmark]: Boogie Preprocessor took 124.34ms. Allocated memory is still 90.2MB. Free memory was 52.3MB in the beginning and 49.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,816 INFO L158 Benchmark]: RCFGBuilder took 1499.33ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 49.5MB in the beginning and 62.7MB in the end (delta: -13.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,817 INFO L158 Benchmark]: CodeCheck took 43428.40ms. Allocated memory was 119.5MB in the beginning and 390.1MB in the end (delta: 270.5MB). Free memory was 61.7MB in the beginning and 336.3MB in the end (delta: -274.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:01:51,818 INFO L158 Benchmark]: Witness Printer took 102.25ms. Allocated memory is still 390.1MB. Free memory was 336.3MB in the beginning and 334.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:01:51,822 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, 257 locations, 131 error locations. Started 1 CEGAR loops. OverallTime: 43.3s, OverallIterations: 44, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6107 SdHoareTripleChecker+Valid, 21514.48ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3694 mSDsluCounter, 5599 SdHoareTripleChecker+Invalid, 17404.81ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4204 mSDsCounter, 3374 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10367 IncrementalHoareTripleChecker+Invalid, 13741 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3374 mSolverCounterUnsat, 1477 mSDtfsCounter, 10367 mSolverCounterSat, 474.28ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5663 GetRequests, 5220 SyntacticMatches, 67 SemanticMatches, 376 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51714 ImplicationChecksByTransitivity, 38.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 692 NumberOfCodeBlocks, 692 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 623 ConstructedInterpolants, 0 QuantifiedInterpolants, 3490 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 43 InterpolantComputations, 43 PerfectInterpolantSequences, 64/64 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: 565]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L638] struct list *data = ((void *)0); VAL [data={0:0}] [L639] COND TRUE __VERIFIER_nondet_int() [L640] struct node *node = malloc(sizeof *node); [L641] COND FALSE !(!node) VAL [data={0:0}, node={11098:0}] [L643] node->next = node [L644] node->value = __VERIFIER_nondet_int() [L645] struct list *item = malloc(sizeof *item); [L646] COND FALSE !(!item) VAL [data={0:0}, item={-1:0}, node={11098:0}] [L648] item->slist = node VAL [data={0:0}, item={-1:0}, node={11098:0}] [L649] item->next = data [L650] data = item VAL [data={-1:0}, item={-1:0}, node={11098:0}] [L639] COND FALSE !(__VERIFIER_nondet_int()) [L652] COND FALSE !(!data) [L654] CALL inspect_before(data) [L615] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L616] shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L616] COND FALSE !(shape->next) [L622] COND FALSE !(!(shape)) VAL [shape={-1:0}, shape={-1:0}] [L623] EXPR shape->next VAL [shape={-1:0}, shape={-1:0}, shape->next={0:0}] [L623] COND FALSE !(!(shape->next == ((void *)0))) [L624] EXPR shape->slist VAL [shape={-1:0}, shape={-1:0}, shape->slist={11098:0}] [L624] COND FALSE !(!(shape->slist)) [L625] EXPR shape->slist VAL [shape={-1:0}, shape={-1:0}, shape->slist={11098:0}] [L625] EXPR shape->slist->next VAL [shape={-1:0}, shape={-1:0}, shape->slist={11098:0}, shape->slist->next={11098:0}] [L625] COND TRUE !(shape->slist->next == ((void *)0)) [L625] CALL fail() [L565] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.85ms. Allocated memory is still 90.2MB. Free memory was 60.2MB in the beginning and 60.2MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.72ms. Allocated memory is still 90.2MB. Free memory was 53.9MB in the beginning and 55.2MB in the end (delta: -1.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 133.58ms. Allocated memory is still 90.2MB. Free memory was 55.2MB in the beginning and 52.3MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.34ms. Allocated memory is still 90.2MB. Free memory was 52.3MB in the beginning and 49.5MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1499.33ms. Allocated memory was 90.2MB in the beginning and 119.5MB in the end (delta: 29.4MB). Free memory was 49.5MB in the beginning and 62.7MB in the end (delta: -13.1MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. * CodeCheck took 43428.40ms. Allocated memory was 119.5MB in the beginning and 390.1MB in the end (delta: 270.5MB). Free memory was 61.7MB in the beginning and 336.3MB in the end (delta: -274.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 102.25ms. Allocated memory is still 390.1MB. Free memory was 336.3MB in the beginning and 334.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 23:01:51,900 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_626dd310-9e8f-4495-a5ab-e41ba13c3084/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)