./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI --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 fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.1-dev-b2eff8b [2021-10-29 02:55:12,915 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 02:55:12,918 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 02:55:12,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 02:55:12,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 02:55:12,973 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 02:55:12,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 02:55:12,981 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 02:55:12,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 02:55:12,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 02:55:12,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 02:55:12,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 02:55:12,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 02:55:12,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 02:55:12,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 02:55:13,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 02:55:13,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 02:55:13,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 02:55:13,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 02:55:13,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 02:55:13,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 02:55:13,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 02:55:13,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 02:55:13,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 02:55:13,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 02:55:13,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 02:55:13,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 02:55:13,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 02:55:13,042 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 02:55:13,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 02:55:13,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 02:55:13,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 02:55:13,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 02:55:13,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 02:55:13,050 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 02:55:13,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 02:55:13,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 02:55:13,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 02:55:13,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 02:55:13,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 02:55:13,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 02:55:13,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2021-10-29 02:55:13,096 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 02:55:13,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 02:55:13,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 02:55:13,099 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 02:55:13,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 02:55:13,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 02:55:13,099 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 02:55:13,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 02:55:13,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 02:55:13,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 02:55:13,101 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 02:55:13,102 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 02:55:13,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 02:55:13,102 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 02:55:13,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 02:55:13,102 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 02:55:13,103 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 02:55:13,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 02:55:13,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:55:13,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 02:55:13,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 02:55:13,104 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 02:55:13,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 02:55:13,104 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_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fc03d948b3133d1e09e5b9df570e018433e0831cbe27440ede702c2678003704 [2021-10-29 02:55:13,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 02:55:13,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 02:55:13,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 02:55:13,447 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 02:55:13,449 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 02:55:13,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2021-10-29 02:55:13,523 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/data/71e8630a1/6107753769d04f1ab39324193c90e95c/FLAGec2c201ed [2021-10-29 02:55:14,180 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 02:55:14,183 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i [2021-10-29 02:55:14,199 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/data/71e8630a1/6107753769d04f1ab39324193c90e95c/FLAGec2c201ed [2021-10-29 02:55:14,449 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/data/71e8630a1/6107753769d04f1ab39324193c90e95c [2021-10-29 02:55:14,451 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 02:55:14,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 02:55:14,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 02:55:14,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 02:55:14,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 02:55:14,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:55:14" (1/1) ... [2021-10-29 02:55:14,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae30a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:14, skipping insertion in model container [2021-10-29 02:55:14,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 02:55:14" (1/1) ... [2021-10-29 02:55:14,482 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 02:55:14,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 02:55:14,933 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_7b6077a5-c648-4149-9011-2f155cde0fa4/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2021-10-29 02:55:14,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:55:14,959 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 02:55:14,997 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_7b6077a5-c648-4149-9011-2f155cde0fa4/sv-benchmarks/c/forester-heap/sll-simple-white-blue-2.i[22617,22630] [2021-10-29 02:55:14,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 02:55:15,029 INFO L208 MainTranslator]: Completed translation [2021-10-29 02:55:15,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15 WrapperNode [2021-10-29 02:55:15,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 02:55:15,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 02:55:15,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 02:55:15,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 02:55:15,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,077 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 02:55:15,078 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 02:55:15,078 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 02:55:15,079 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 02:55:15,087 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,087 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,092 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,102 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,109 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,112 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 02:55:15,113 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 02:55:15,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 02:55:15,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 02:55:15,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:15,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 02:55:15,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 02:55:15,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 02:55:15,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 02:55:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 02:55:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 02:55:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 02:55:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-29 02:55:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 02:55:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-29 02:55:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 02:55:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 02:55:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 02:55:15,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 02:55:15,985 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 02:55:15,985 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-29 02:55:15,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:55:15 BoogieIcfgContainer [2021-10-29 02:55:15,988 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 02:55:15,989 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 02:55:15,989 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 02:55:15,999 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 02:55:16,000 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:55:15" (1/1) ... [2021-10-29 02:55:16,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 02:55:16,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 90 states and 102 transitions. [2021-10-29 02:55:16,049 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 102 transitions. [2021-10-29 02:55:16,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 02:55:16,051 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 89 states and 101 transitions. [2021-10-29 02:55:16,297 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 101 transitions. [2021-10-29 02:55:16,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2021-10-29 02:55:16,297 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 88 states and 100 transitions. [2021-10-29 02:55:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2021-10-29 02:55:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 02:55:16,448 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 87 states and 99 transitions. [2021-10-29 02:55:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2021-10-29 02:55:16,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 02:55:16,516 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 86 states and 98 transitions. [2021-10-29 02:55:16,576 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2021-10-29 02:55:16,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 02:55:16,578 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,579 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 85 states and 96 transitions. [2021-10-29 02:55:16,672 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 96 transitions. [2021-10-29 02:55:16,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 02:55:16,672 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 88 states and 101 transitions. [2021-10-29 02:55:16,908 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 101 transitions. [2021-10-29 02:55:16,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:55:16,909 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,910 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:16,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:16,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:16,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 87 states and 100 transitions. [2021-10-29 02:55:16,978 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2021-10-29 02:55:16,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 02:55:16,979 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:16,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:17,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:17,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 88 states and 102 transitions. [2021-10-29 02:55:17,263 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 102 transitions. [2021-10-29 02:55:17,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:17,263 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:17,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:17,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions. [2021-10-29 02:55:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2021-10-29 02:55:17,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:17,414 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:17,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 98 states and 121 transitions. [2021-10-29 02:55:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 121 transitions. [2021-10-29 02:55:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:17,741 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:17,741 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:17,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:17,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:17,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 97 states and 120 transitions. [2021-10-29 02:55:17,786 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 120 transitions. [2021-10-29 02:55:17,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:17,787 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:17,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:17,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:17,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 96 states and 119 transitions. [2021-10-29 02:55:17,821 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 119 transitions. [2021-10-29 02:55:17,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:17,821 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:17,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:17,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:18,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 98 states and 123 transitions. [2021-10-29 02:55:18,242 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 123 transitions. [2021-10-29 02:55:18,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 02:55:18,243 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:18,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 100 states and 127 transitions. [2021-10-29 02:55:18,876 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 127 transitions. [2021-10-29 02:55:18,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 02:55:18,876 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:18,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:18,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:18,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 99 states and 126 transitions. [2021-10-29 02:55:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 126 transitions. [2021-10-29 02:55:18,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 02:55:18,906 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:18,906 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:18,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 98 states and 125 transitions. [2021-10-29 02:55:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 125 transitions. [2021-10-29 02:55:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 02:55:18,947 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:18,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:18,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:18,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 97 states and 124 transitions. [2021-10-29 02:55:18,977 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 124 transitions. [2021-10-29 02:55:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 02:55:18,977 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:18,978 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:18,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 84 states and 102 transitions. [2021-10-29 02:55:19,209 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 102 transitions. [2021-10-29 02:55:19,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 02:55:19,210 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 85 states and 104 transitions. [2021-10-29 02:55:19,236 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 104 transitions. [2021-10-29 02:55:19,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 02:55:19,236 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,237 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 87 states and 109 transitions. [2021-10-29 02:55:19,269 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 109 transitions. [2021-10-29 02:55:19,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,270 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 90 states and 116 transitions. [2021-10-29 02:55:19,433 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 116 transitions. [2021-10-29 02:55:19,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,434 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,434 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 90 states and 115 transitions. [2021-10-29 02:55:19,524 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 115 transitions. [2021-10-29 02:55:19,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,524 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 88 states and 112 transitions. [2021-10-29 02:55:19,543 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2021-10-29 02:55:19,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,543 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,544 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 89 states and 113 transitions. [2021-10-29 02:55:19,569 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2021-10-29 02:55:19,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,570 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,570 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 88 states and 112 transitions. [2021-10-29 02:55:19,596 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2021-10-29 02:55:19,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,597 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,597 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 89 states and 115 transitions. [2021-10-29 02:55:19,642 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 115 transitions. [2021-10-29 02:55:19,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,642 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,643 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 91 states and 118 transitions. [2021-10-29 02:55:19,682 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2021-10-29 02:55:19,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 02:55:19,683 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,683 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 93 states and 122 transitions. [2021-10-29 02:55:19,836 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 122 transitions. [2021-10-29 02:55:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 02:55:19,836 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,837 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 92 states and 121 transitions. [2021-10-29 02:55:19,862 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 121 transitions. [2021-10-29 02:55:19,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 02:55:19,863 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:19,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:19,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:19,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 93 states and 123 transitions. [2021-10-29 02:55:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2021-10-29 02:55:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 02:55:19,896 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:19,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:21,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:21,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 99 states and 134 transitions. [2021-10-29 02:55:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 134 transitions. [2021-10-29 02:55:21,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:21,039 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:21,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:21,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:21,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:21,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:21,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 101 states and 138 transitions. [2021-10-29 02:55:21,589 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 138 transitions. [2021-10-29 02:55:21,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:21,590 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:21,590 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:21,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:21,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 103 states and 142 transitions. [2021-10-29 02:55:22,410 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2021-10-29 02:55:22,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:22,410 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 102 states and 141 transitions. [2021-10-29 02:55:22,447 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 141 transitions. [2021-10-29 02:55:22,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:22,448 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 104 states and 145 transitions. [2021-10-29 02:55:22,512 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 145 transitions. [2021-10-29 02:55:22,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:22,512 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 105 states and 149 transitions. [2021-10-29 02:55:22,568 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 149 transitions. [2021-10-29 02:55:22,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 02:55:22,569 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,569 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 105 states and 148 transitions. [2021-10-29 02:55:22,615 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 148 transitions. [2021-10-29 02:55:22,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:22,616 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,616 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:22,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:22,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 106 states and 150 transitions. [2021-10-29 02:55:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2021-10-29 02:55:22,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:22,870 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:22,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:22,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:23,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:23,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 108 states and 153 transitions. [2021-10-29 02:55:23,188 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 153 transitions. [2021-10-29 02:55:23,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:23,189 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:23,189 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:23,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:23,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:24,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:24,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 114 states and 164 transitions. [2021-10-29 02:55:24,610 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 164 transitions. [2021-10-29 02:55:24,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:24,610 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:24,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:24,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 120 states and 175 transitions. [2021-10-29 02:55:26,317 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 175 transitions. [2021-10-29 02:55:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:26,318 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:26,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:26,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:27,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 126 states and 185 transitions. [2021-10-29 02:55:27,718 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 185 transitions. [2021-10-29 02:55:27,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 02:55:27,719 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:27,719 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:27,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:28,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:30,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:30,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 135 states and 199 transitions. [2021-10-29 02:55:30,536 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 199 transitions. [2021-10-29 02:55:30,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:55:30,537 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:30,537 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:30,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:30,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:32,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:32,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 137 states and 203 transitions. [2021-10-29 02:55:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 203 transitions. [2021-10-29 02:55:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:55:32,591 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:32,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:33,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 139 states and 211 transitions. [2021-10-29 02:55:34,417 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 211 transitions. [2021-10-29 02:55:34,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:55:34,417 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:34,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:34,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:34,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:34,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 142 states and 217 transitions. [2021-10-29 02:55:34,497 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2021-10-29 02:55:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 02:55:34,497 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:34,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:35,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:35,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:35,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 145 states and 224 transitions. [2021-10-29 02:55:35,923 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 224 transitions. [2021-10-29 02:55:35,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-29 02:55:35,924 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:35,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:36,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:41,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 156 states and 249 transitions. [2021-10-29 02:55:41,123 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 249 transitions. [2021-10-29 02:55:41,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 02:55:41,124 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:41,124 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:41,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:44,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:44,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 164 states and 264 transitions. [2021-10-29 02:55:44,648 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 264 transitions. [2021-10-29 02:55:44,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 02:55:44,649 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:44,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 02:55:45,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 02:55:50,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 02:55:50,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 174 states and 283 transitions. [2021-10-29 02:55:50,673 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 283 transitions. [2021-10-29 02:55:50,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-29 02:55:50,673 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 02:55:50,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 02:55:50,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:55:50,683 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 02:55:50,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:55:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:55:50,745 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 02:55:50,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 02:55:50,814 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 51 iterations. [2021-10-29 02:55:50,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 02:55:50 ImpRootNode [2021-10-29 02:55:50,872 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 02:55:50,873 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 02:55:50,873 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 02:55:50,873 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 02:55:50,874 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 02:55:15" (3/4) ... [2021-10-29 02:55:50,876 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 02:55:50,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 02:55:50,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 02:55:50,947 INFO L168 Benchmark]: Toolchain (without parser) took 36493.14 ms. Allocated memory was 109.1 MB in the beginning and 281.0 MB in the end (delta: 172.0 MB). Free memory was 65.6 MB in the beginning and 123.8 MB in the end (delta: -58.2 MB). Peak memory consumption was 112.0 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,947 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 109.1 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 02:55:50,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 563.62 ms. Allocated memory is still 109.1 MB. Free memory was 65.4 MB in the beginning and 74.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,949 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,949 INFO L168 Benchmark]: Boogie Preprocessor took 34.50 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 70.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,950 INFO L168 Benchmark]: RCFGBuilder took 874.99 ms. Allocated memory is still 109.1 MB. Free memory was 70.8 MB in the beginning and 46.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,951 INFO L168 Benchmark]: CodeCheck took 34883.43 ms. Allocated memory was 109.1 MB in the beginning and 281.0 MB in the end (delta: 172.0 MB). Free memory was 46.2 MB in the beginning and 125.9 MB in the end (delta: -79.6 MB). Peak memory consumption was 92.9 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,952 INFO L168 Benchmark]: Witness Printer took 72.16 ms. Allocated memory is still 281.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 02:55:50,959 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, 90 locations, 49 error locations. Started 1 CEGAR loops. OverallTime: 34.7s, OverallIterations: 51, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: -1341521872 SDtfs, 30231858 SDslu, 1091233132 SDs, 0 SdLazy, -506209918 SolverSat, -54011972 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4530 GetRequests, 4099 SyntacticMatches, 61 SemanticMatches, 370 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56391 ImplicationChecksByTransitivity, 30.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 553 NumberOfCodeBlocks, 553 NumberOfCodeBlocksAsserted, 51 NumberOfCheckSat, 486 ConstructedInterpolants, 0 QuantifiedInterpolants, 2562 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 50 InterpolantComputations, 46 PerfectInterpolantSequences, 0/6 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: 1053]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L999] SLL* head = malloc(sizeof(SLL)); [L1000] head->next = ((void*)0) [L1001] head->data = 0 [L1003] SLL* x = head; [L1006] COND FALSE !(__VERIFIER_nondet_int()) [L1016] COND TRUE __VERIFIER_nondet_int() [L1017] x = malloc(sizeof(SLL)) [L1018] x->data = 1 [L1019] x->next = head [L1020] head = x [L1040] x = head [L1043] EXPR x->data [L1043] COND FALSE !(x->data != 1) [L1049] EXPR x->next [L1049] x = x->next [L1050] COND TRUE \read(*x) [L1052] EXPR x->data [L1052] COND TRUE x->data != 1 [L1053] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 109.1 MB. Free memory is still 82.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 563.62 ms. Allocated memory is still 109.1 MB. Free memory was 65.4 MB in the beginning and 74.6 MB in the end (delta: -9.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.70 ms. Allocated memory is still 109.1 MB. Free memory was 74.6 MB in the beginning and 72.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.50 ms. Allocated memory is still 109.1 MB. Free memory was 72.6 MB in the beginning and 70.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 874.99 ms. Allocated memory is still 109.1 MB. Free memory was 70.8 MB in the beginning and 46.2 MB in the end (delta: 24.6 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * CodeCheck took 34883.43 ms. Allocated memory was 109.1 MB in the beginning and 281.0 MB in the end (delta: 172.0 MB). Free memory was 46.2 MB in the beginning and 125.9 MB in the end (delta: -79.6 MB). Peak memory consumption was 92.9 MB. Max. memory is 16.1 GB. * Witness Printer took 72.16 ms. Allocated memory is still 281.0 MB. Free memory was 125.9 MB in the beginning and 123.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 02:55:51,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b6077a5-c648-4149-9011-2f155cde0fa4/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...