./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN --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 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:10:47,745 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:10:47,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:10:47,800 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:10:47,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:10:47,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:10:47,809 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:10:47,811 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:10:47,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:10:47,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:10:47,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:10:47,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:10:47,823 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:10:47,828 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:10:47,831 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:10:47,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:10:47,838 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:10:47,839 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:10:47,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:10:47,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:10:47,852 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:10:47,853 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:10:47,857 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:10:47,858 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:10:47,863 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:10:47,864 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:10:47,864 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:10:47,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:10:47,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:10:47,869 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:10:47,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:10:47,870 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:10:47,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:10:47,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:10:47,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:10:47,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:10:47,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:10:47,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:10:47,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:10:47,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:10:47,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:10:47,880 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-21 05:10:47,911 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:10:47,911 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:10:47,912 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:10:47,913 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:10:47,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:10:47,913 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 05:10:47,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:10:47,914 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:10:47,914 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 05:10:47,914 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:10:47,914 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 05:10:47,915 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 05:10:47,915 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 05:10:47,915 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:10:47,915 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 05:10:47,915 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:10:47,916 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:10:47,916 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:10:47,916 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:10:47,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:10:47,917 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:10:47,917 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:10:47,917 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:10:47,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:10:47,917 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_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d5c55d9a4a2ded389ff7ce077afdc88fb2d2855921e5fd1e3b93fbba7e140e8 [2021-11-21 05:10:48,236 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:10:48,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:10:48,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:10:48,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:10:48,277 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:10:48,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-21 05:10:48,359 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/data/809832a5a/70db745b7d7b4375894bae1758e19c58/FLAG6caf5ab79 [2021-11-21 05:10:48,895 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:10:48,896 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i [2021-11-21 05:10:48,917 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/data/809832a5a/70db745b7d7b4375894bae1758e19c58/FLAG6caf5ab79 [2021-11-21 05:10:49,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/data/809832a5a/70db745b7d7b4375894bae1758e19c58 [2021-11-21 05:10:49,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:10:49,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:10:49,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:10:49,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:10:49,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:10:49,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd1772d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49, skipping insertion in model container [2021-11-21 05:10:49,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:10:49,243 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:10:49,552 WARN L230 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_8695d422-601b-43c1-9e84-b45d8ebdfeca/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-21 05:10:49,554 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:10:49,563 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:10:49,608 WARN L230 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_8695d422-601b-43c1-9e84-b45d8ebdfeca/sv-benchmarks/c/list-simple/dll2n_remove_all_reverse.i[24275,24288] [2021-11-21 05:10:49,609 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:10:49,640 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:10:49,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49 WrapperNode [2021-11-21 05:10:49,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:10:49,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:10:49,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:10:49,643 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:10:49,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,667 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,692 INFO L137 Inliner]: procedures = 126, calls = 35, calls flagged for inlining = 6, calls inlined = 5, statements flattened = 104 [2021-11-21 05:10:49,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:10:49,693 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:10:49,693 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:10:49,694 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:10:49,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,702 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:10:49,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:10:49,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:10:49,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:10:49,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:10:49" (1/1) ... [2021-11-21 05:10:49,740 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:10:49,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:10:49,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:10:49,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8695d422-601b-43c1-9e84-b45d8ebdfeca/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 05:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 05:10:49,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 05:10:49,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 05:10:49,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 05:10:49,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 05:10:49,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 05:10:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-21 05:10:49,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 05:10:49,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:10:49,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:10:49,923 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:10:49,925 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:10:50,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:10:50,308 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:10:50,308 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-21 05:10:50,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:50 BoogieIcfgContainer [2021-11-21 05:10:50,311 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:10:50,312 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:10:50,312 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:10:50,328 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:10:50,328 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:10:50" (1/1) ... [2021-11-21 05:10:50,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:10:50,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:50,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 67 states and 74 transitions. [2021-11-21 05:10:50,405 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2021-11-21 05:10:50,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:10:50,412 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:50,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:50,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:50,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 68 states and 76 transitions. [2021-11-21 05:10:50,640 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 76 transitions. [2021-11-21 05:10:50,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:10:50,641 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:50,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:50,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 67 states and 75 transitions. [2021-11-21 05:10:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 75 transitions. [2021-11-21 05:10:50,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:10:50,766 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:50,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:50,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:50,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:50,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:50,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 66 states and 74 transitions. [2021-11-21 05:10:50,989 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2021-11-21 05:10:50,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:50,989 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:50,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 65 states and 73 transitions. [2021-11-21 05:10:51,054 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2021-11-21 05:10:51,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:10:51,054 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 64 states and 72 transitions. [2021-11-21 05:10:51,100 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 72 transitions. [2021-11-21 05:10:51,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:10:51,101 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 63 states and 71 transitions. [2021-11-21 05:10:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 71 transitions. [2021-11-21 05:10:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:10:51,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 62 states and 70 transitions. [2021-11-21 05:10:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 70 transitions. [2021-11-21 05:10:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:10:51,243 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 68 states and 78 transitions. [2021-11-21 05:10:51,564 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 78 transitions. [2021-11-21 05:10:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 05:10:51,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:51,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 75 states and 87 transitions. [2021-11-21 05:10:51,928 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 87 transitions. [2021-11-21 05:10:51,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 05:10:51,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:51,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:51,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:52,089 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:52,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:52,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 83 states and 101 transitions. [2021-11-21 05:10:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 101 transitions. [2021-11-21 05:10:52,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 05:10:52,750 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:52,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:52,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 91 states and 118 transitions. [2021-11-21 05:10:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 118 transitions. [2021-11-21 05:10:53,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 05:10:53,779 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:53,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:10:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:54,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 93 states and 121 transitions. [2021-11-21 05:10:54,434 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 121 transitions. [2021-11-21 05:10:54,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 05:10:54,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:54,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:10:56,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:10:56,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 111 states and 159 transitions. [2021-11-21 05:10:56,895 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-21 05:10:56,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 05:10:56,896 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:10:56,897 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:10:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:10:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:11:00,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:00,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 129 states and 201 transitions. [2021-11-21 05:11:00,804 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 201 transitions. [2021-11-21 05:11:00,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 05:11:00,805 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:00,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:00,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:00,977 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:03,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:03,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 146 states and 242 transitions. [2021-11-21 05:11:03,910 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 242 transitions. [2021-11-21 05:11:03,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 05:11:03,911 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:03,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 05:11:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:06,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 151 states and 255 transitions. [2021-11-21 05:11:06,449 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 255 transitions. [2021-11-21 05:11:06,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 05:11:06,450 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:06,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:06,857 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:11:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:09,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 156 states and 268 transitions. [2021-11-21 05:11:09,964 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 268 transitions. [2021-11-21 05:11:09,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 05:11:09,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:09,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:09,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:09,987 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:10,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:10,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 158 states and 272 transitions. [2021-11-21 05:11:10,387 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 272 transitions. [2021-11-21 05:11:10,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 05:11:10,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:10,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:10,723 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:11,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:11,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 161 states and 278 transitions. [2021-11-21 05:11:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 278 transitions. [2021-11-21 05:11:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 05:11:11,927 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:11,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:11,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 162 states and 279 transitions. [2021-11-21 05:11:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 279 transitions. [2021-11-21 05:11:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-21 05:11:11,965 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:11,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:11,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:11,995 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:12,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 163 states and 280 transitions. [2021-11-21 05:11:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 280 transitions. [2021-11-21 05:11:12,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 05:11:12,011 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:12,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:12,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:11:14,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 85 states and 106 transitions. [2021-11-21 05:11:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 106 transitions. [2021-11-21 05:11:14,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 05:11:14,332 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:14,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:14,628 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:16,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:16,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 88 states and 112 transitions. [2021-11-21 05:11:16,002 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 112 transitions. [2021-11-21 05:11:16,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 05:11:16,003 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:16,003 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:16,481 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:11:18,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:18,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 91 states and 119 transitions. [2021-11-21 05:11:18,578 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 05:11:18,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 05:11:18,579 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:18,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:18,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:19,260 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:11:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 93 states and 123 transitions. [2021-11-21 05:11:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 123 transitions. [2021-11-21 05:11:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 05:11:20,403 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:20,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:21,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:11:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:28,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 100 states and 137 transitions. [2021-11-21 05:11:28,130 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 137 transitions. [2021-11-21 05:11:28,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 05:11:28,131 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:28,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:11:32,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:32,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 104 states and 147 transitions. [2021-11-21 05:11:32,507 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 147 transitions. [2021-11-21 05:11:32,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 05:11:32,508 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:32,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:32,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:32,531 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 103 states and 146 transitions. [2021-11-21 05:11:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 146 transitions. [2021-11-21 05:11:33,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 05:11:33,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:33,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:34,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 102 states and 145 transitions. [2021-11-21 05:11:34,812 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 145 transitions. [2021-11-21 05:11:34,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-21 05:11:34,813 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:34,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:11:37,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:37,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 106 states and 150 transitions. [2021-11-21 05:11:37,097 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 150 transitions. [2021-11-21 05:11:37,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 05:11:37,097 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:37,098 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:37,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:39,763 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:11:54,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:11:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 114 states and 172 transitions. [2021-11-21 05:11:54,245 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 172 transitions. [2021-11-21 05:11:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 05:11:54,245 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:11:54,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:11:54,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:11:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:12:09,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:12:09,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 122 states and 191 transitions. [2021-11-21 05:12:09,153 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 191 transitions. [2021-11-21 05:12:09,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 05:12:09,153 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:12:09,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:12:09,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:12:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:12:18,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:12:18,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 129 states and 207 transitions. [2021-11-21 05:12:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 207 transitions. [2021-11-21 05:12:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-21 05:12:18,782 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:12:18,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:12:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:12:18,808 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:12:21,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:12:21,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 133 states and 212 transitions. [2021-11-21 05:12:21,508 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 212 transitions. [2021-11-21 05:12:21,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 05:12:21,509 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:12:21,509 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:12:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:12:21,802 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:12:25,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:12:25,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 136 states and 219 transitions. [2021-11-21 05:12:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 219 transitions. [2021-11-21 05:12:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 05:12:25,038 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:12:25,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:12:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:12:25,805 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:12:32,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:12:32,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 141 states and 233 transitions. [2021-11-21 05:12:32,077 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 233 transitions. [2021-11-21 05:12:32,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:12:32,078 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:12:32,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:12:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:12:38,711 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:13:09,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:09,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 149 states and 253 transitions. [2021-11-21 05:13:09,357 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 253 transitions. [2021-11-21 05:13:09,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:09,358 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:09,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:13:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:21,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 152 states and 257 transitions. [2021-11-21 05:13:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 257 transitions. [2021-11-21 05:13:21,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:21,423 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:21,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:21,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:22,592 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:13:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 162 states and 282 transitions. [2021-11-21 05:13:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 282 transitions. [2021-11-21 05:13:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:37,785 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:37,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:13:39,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:39,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 163 states and 285 transitions. [2021-11-21 05:13:39,511 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 285 transitions. [2021-11-21 05:13:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:39,512 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:39,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:39,537 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:13:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:39,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 164 states and 286 transitions. [2021-11-21 05:13:39,558 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 286 transitions. [2021-11-21 05:13:39,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:39,558 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:39,558 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:40,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:13:55,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:55,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 174 states and 308 transitions. [2021-11-21 05:13:55,534 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 308 transitions. [2021-11-21 05:13:55,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-21 05:13:55,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:55,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:13:55,561 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:13:56,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:13:56,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 175 states and 308 transitions. [2021-11-21 05:13:56,689 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 308 transitions. [2021-11-21 05:13:56,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 05:13:56,689 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:13:56,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:13:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:14:01,856 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:14:46,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:14:46,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 188 states and 340 transitions. [2021-11-21 05:14:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 340 transitions. [2021-11-21 05:14:46,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 05:14:46,931 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:14:46,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:14:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:14:56,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:15:45,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:15:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 198 states and 369 transitions. [2021-11-21 05:15:45,559 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 369 transitions. [2021-11-21 05:15:45,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 05:15:45,559 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:15:45,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:15:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:15:45,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:15:49,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:15:49,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 200 states and 382 transitions. [2021-11-21 05:15:49,160 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 382 transitions. [2021-11-21 05:15:49,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 05:15:49,161 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:15:49,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:15:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:15:55,130 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:16:16,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:16:16,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 204 states and 388 transitions. [2021-11-21 05:16:16,535 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 388 transitions. [2021-11-21 05:16:16,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 05:16:16,535 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:16:16,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:16:16,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:16:16,557 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 05:16:23,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:16:23,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 207 states and 395 transitions. [2021-11-21 05:16:23,489 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 395 transitions. [2021-11-21 05:16:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 05:16:23,489 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:16:23,489 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:16:23,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:16:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 05:16:43,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:16:43,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 217 states and 419 transitions. [2021-11-21 05:16:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 419 transitions. [2021-11-21 05:16:43,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 05:16:43,282 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:16:43,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:16:43,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:16:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-21 05:17:36,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:17:36,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 231 states and 453 transitions. [2021-11-21 05:17:36,375 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 453 transitions. [2021-11-21 05:17:36,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 05:17:36,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:17:36,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:17:36,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:17:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-21 05:18:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:18:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 241 states and 477 transitions. [2021-11-21 05:18:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 477 transitions. [2021-11-21 05:18:00,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:18:00,717 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:18:00,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:18:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:18:04,659 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:18:38,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:18:38,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 252 states and 510 transitions. [2021-11-21 05:18:38,770 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 510 transitions. [2021-11-21 05:18:38,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:18:38,770 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:18:38,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:18:38,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:18:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:18:41,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:18:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 253 states and 515 transitions. [2021-11-21 05:18:41,174 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 515 transitions. [2021-11-21 05:18:41,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:18:41,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:18:41,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:18:41,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:18:49,577 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:20:02,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:20:02,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 268 states and 552 transitions. [2021-11-21 05:20:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 552 transitions. [2021-11-21 05:20:02,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:20:02,201 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:20:02,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:20:02,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:20:02,279 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:20:07,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:20:07,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 270 states and 554 transitions. [2021-11-21 05:20:07,370 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 554 transitions. [2021-11-21 05:20:07,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:20:07,370 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:20:07,370 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:20:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:20:07,447 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:20:09,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:20:09,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 271 states and 554 transitions. [2021-11-21 05:20:09,627 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 554 transitions. [2021-11-21 05:20:09,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:20:09,627 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:20:09,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:20:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:20:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:20:14,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:20:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 273 states and 556 transitions. [2021-11-21 05:20:14,603 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 556 transitions. [2021-11-21 05:20:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-11-21 05:20:14,603 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:20:14,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:20:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:20:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:20:20,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:20:20,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 275 states and 557 transitions. [2021-11-21 05:20:20,091 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 557 transitions. [2021-11-21 05:20:20,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 05:20:20,092 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:20:20,092 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:20:20,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:20:24,470 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:21:09,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:21:09,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 288 states and 590 transitions. [2021-11-21 05:21:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 590 transitions. [2021-11-21 05:21:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 05:21:09,262 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:21:09,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:21:09,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:21:09,326 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:21:12,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:21:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 289 states and 596 transitions. [2021-11-21 05:21:12,280 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 596 transitions. [2021-11-21 05:21:12,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 05:21:12,280 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:21:12,280 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:21:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:21:12,341 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:21:14,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:21:14,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 596 states to 290 states and 596 transitions. [2021-11-21 05:21:14,851 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 596 transitions. [2021-11-21 05:21:14,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 05:21:14,852 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:21:14,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:21:14,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:21:14,917 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:21:20,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:21:20,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 292 states and 597 transitions. [2021-11-21 05:21:20,495 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 597 transitions. [2021-11-21 05:21:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 05:21:20,496 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:21:20,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:21:20,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:21:26,875 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 05:22:12,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:22:12,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 626 states to 303 states and 626 transitions. [2021-11-21 05:22:12,921 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 626 transitions. [2021-11-21 05:22:12,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 05:22:12,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:22:12,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:22:12,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:22:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked.