./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:00:53,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:00:53,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:00:53,742 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:00:53,743 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:00:53,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:00:53,750 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:00:53,756 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:00:53,758 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:00:53,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:00:53,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:00:53,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:00:53,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:00:53,771 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:00:53,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:00:53,776 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:00:53,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:00:53,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:00:53,786 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:00:53,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:00:53,796 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:00:53,798 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:00:53,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:00:53,803 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:00:53,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:00:53,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:00:53,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:00:53,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:00:53,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:00:53,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:00:53,819 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:00:53,820 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:00:53,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:00:53,825 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:00:53,826 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:00:53,826 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:00:53,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:00:53,828 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:00:53,828 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:00:53,829 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:00:53,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:00:53,831 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 17:00:53,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:00:53,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:00:53,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:00:53,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:00:53,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:00:53,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:00:53,876 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:00:53,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:00:53,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:00:53,877 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:00:53,878 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:00:53,878 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:00:53,878 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:00:53,879 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:00:53,879 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:00:53,879 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:00:53,879 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:00:53,880 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:00:53,880 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:00:53,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:53,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:00:53,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:00:53,881 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:00:53,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:00:53,881 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_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f22afdea3888c472e42c0b4bee511704d4ceb9c1e2d9f4db0ce5ffbd6de758f0 [2022-10-17 17:00:54,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:00:54,209 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:00:54,223 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:00:54,225 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:00:54,226 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:00:54,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2022-10-17 17:00:54,327 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/data/2fd5a5216/2aaa25e335af4facb33f30fe35764b40/FLAG16a52bdd7 [2022-10-17 17:00:54,783 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:00:54,783 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/sv-benchmarks/c/array-memsafety/openbsd_cstpcpy-alloca-1.i [2022-10-17 17:00:54,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/data/2fd5a5216/2aaa25e335af4facb33f30fe35764b40/FLAG16a52bdd7 [2022-10-17 17:00:55,143 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/data/2fd5a5216/2aaa25e335af4facb33f30fe35764b40 [2022-10-17 17:00:55,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:00:55,148 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:00:55,152 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:55,152 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:00:55,155 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:00:55,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3512b5a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55, skipping insertion in model container [2022-10-17 17:00:55,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:00:55,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:00:55,647 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:55,655 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:00:55,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:00:55,722 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:00:55,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55 WrapperNode [2022-10-17 17:00:55,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:00:55,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:55,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:00:55,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:00:55,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,789 INFO L138 Inliner]: procedures = 117, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2022-10-17 17:00:55,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:00:55,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:00:55,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:00:55,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:00:55,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,817 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,837 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,843 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:00:55,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:00:55,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:00:55,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:00:55,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:00:55" (1/1) ... [2022-10-17 17:00:55,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:00:55,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:00:55,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:00:55,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41054eaf-0071-4e4f-9111-e1b05fd287ef/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:00:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 17:00:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 17:00:55,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 17:00:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 17:00:55,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:00:55,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:00:56,035 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:00:56,037 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:00:56,215 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:00:56,283 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:00:56,284 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 17:00:56,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:56 BoogieIcfgContainer [2022-10-17 17:00:56,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:00:56,301 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:00:56,301 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:00:56,325 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:00:56,326 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:00:56" (1/1) ... [2022-10-17 17:00:56,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:00:56,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:56,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-10-17 17:00:56,428 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-10-17 17:00:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-10-17 17:00:56,443 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:56,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:56,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 21 states and 24 transitions. [2022-10-17 17:00:56,673 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-10-17 17:00:56,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:00:56,683 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:56,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:56,871 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:56,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:56,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2022-10-17 17:00:56,917 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2022-10-17 17:00:56,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:00:56,917 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:56,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2022-10-17 17:00:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2022-10-17 17:00:57,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:00:57,307 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:57,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:57,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2022-10-17 17:00:57,420 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-10-17 17:00:57,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:00:57,421 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:57,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:57,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:57,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:57,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:57,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2022-10-17 17:00:57,970 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2022-10-17 17:00:57,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:00:57,970 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:57,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:58,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:58,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:58,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2022-10-17 17:00:58,907 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2022-10-17 17:00:58,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:00:58,908 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:58,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:59,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:59,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:59,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2022-10-17 17:00:59,531 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-10-17 17:00:59,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:00:59,531 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:59,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:59,629 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:00:59,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:00:59,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2022-10-17 17:00:59,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-10-17 17:00:59,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:00:59,687 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:00:59,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:00:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:00:59,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:00,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:00,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 28 states and 38 transitions. [2022-10-17 17:01:00,114 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2022-10-17 17:01:00,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:01:00,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:00,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:00,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:01:01,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:01,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2022-10-17 17:01:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2022-10-17 17:01:01,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:01:01,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:01,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:01,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:03,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 36 states and 56 transitions. [2022-10-17 17:01:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2022-10-17 17:01:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:01:03,547 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:03,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:03,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:03,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:04,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2022-10-17 17:01:04,184 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2022-10-17 17:01:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:01:04,185 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:04,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:04,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:04,222 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:01:04,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:04,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2022-10-17 17:01:04,490 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2022-10-17 17:01:04,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:01:04,491 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:05,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 35 states and 52 transitions. [2022-10-17 17:01:07,223 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2022-10-17 17:01:07,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:01:07,224 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:07,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:07,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:01:07,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:07,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2022-10-17 17:01:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2022-10-17 17:01:07,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:01:07,760 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:07,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:09,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:09,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2022-10-17 17:01:09,484 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2022-10-17 17:01:09,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:01:09,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:09,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:09,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:09,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-17 17:01:12,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:12,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 41 states and 66 transitions. [2022-10-17 17:01:12,202 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 66 transitions. [2022-10-17 17:01:12,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:01:12,202 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:12,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:13,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 37 states and 57 transitions. [2022-10-17 17:01:13,532 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 57 transitions. [2022-10-17 17:01:13,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:01:13,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:13,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:13,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:13,890 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:15,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:15,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 41 states and 63 transitions. [2022-10-17 17:01:15,714 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 63 transitions. [2022-10-17 17:01:15,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:01:15,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:15,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:15,833 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:01:16,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:16,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 39 states and 59 transitions. [2022-10-17 17:01:16,371 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 59 transitions. [2022-10-17 17:01:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:01:16,371 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:16,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:01:19,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 44 states and 68 transitions. [2022-10-17 17:01:19,978 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 68 transitions. [2022-10-17 17:01:19,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:01:19,978 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:19,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:20,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:01:21,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:21,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 44 states and 67 transitions. [2022-10-17 17:01:21,305 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 67 transitions. [2022-10-17 17:01:21,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:01:21,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:21,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:21,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:21,346 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 17:01:22,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:01:22,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 45 states and 69 transitions. [2022-10-17 17:01:22,087 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 69 transitions. [2022-10-17 17:01:22,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 17:01:22,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:01:22,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:01:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:01:23,700 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.