./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label14.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label14.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 350ac91600d4c4390de9f3fc82ef0416828210bb98ae007abf94c777e2c55126 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:01:13,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:01:13,501 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:01:13,556 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:01:13,557 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:01:13,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:01:13,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:01:13,567 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:01:13,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:01:13,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:01:13,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:01:13,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:01:13,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:01:13,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:01:13,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:01:13,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:01:13,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:01:13,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:01:13,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:01:13,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:01:13,592 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:01:13,593 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:01:13,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:01:13,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:01:13,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:01:13,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:01:13,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:01:13,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:01:13,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:01:13,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:01:13,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:01:13,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:01:13,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:01:13,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:01:13,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:01:13,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:01:13,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:01:13,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:01:13,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:01:13,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:01:13,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:01:13,610 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:01:13,644 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:01:13,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:01:13,646 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:01:13,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:01:13,647 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:01:13,647 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:01:13,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:01:13,648 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:01:13,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:01:13,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:01:13,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:01:13,652 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:01:13,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:01:13,653 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:01:13,653 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:01:13,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:01:13,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:13,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:01:13,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:01:13,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:01:13,654 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:01:13,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:01:13,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:01:13,655 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_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 350ac91600d4c4390de9f3fc82ef0416828210bb98ae007abf94c777e2c55126 [2021-11-23 01:01:13,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:01:13,989 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:01:13,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:01:13,993 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:01:13,995 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:01:13,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem14_label14.c [2021-11-23 01:01:14,076 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/data/086f515b0/9f7bff47c2624ade8f4f8c3cfa99326b/FLAG31537c288 [2021-11-23 01:01:14,779 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:01:14,779 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/sv-benchmarks/c/eca-rers2012/Problem14_label14.c [2021-11-23 01:01:14,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/data/086f515b0/9f7bff47c2624ade8f4f8c3cfa99326b/FLAG31537c288 [2021-11-23 01:01:14,994 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/data/086f515b0/9f7bff47c2624ade8f4f8c3cfa99326b [2021-11-23 01:01:14,997 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:01:14,999 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:01:15,002 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:15,002 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:01:15,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:01:15,007 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:14" (1/1) ... [2021-11-23 01:01:15,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c772fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15, skipping insertion in model container [2021-11-23 01:01:15,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:01:14" (1/1) ... [2021-11-23 01:01:15,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:01:15,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:01:15,313 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_5193a151-a86b-4eee-a5d4-a7de12ddc070/sv-benchmarks/c/eca-rers2012/Problem14_label14.c[2862,2875] [2021-11-23 01:01:15,594 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:15,602 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:01:15,621 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_5193a151-a86b-4eee-a5d4-a7de12ddc070/sv-benchmarks/c/eca-rers2012/Problem14_label14.c[2862,2875] [2021-11-23 01:01:15,792 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:01:15,808 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:01:15,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15 WrapperNode [2021-11-23 01:01:15,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:01:15,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:15,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:01:15,813 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:01:15,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:15,849 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:15,939 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-23 01:01:15,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:01:15,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:01:15,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:01:15,941 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:01:15,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:15,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:15,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:15,962 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:16,050 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:16,066 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:16,090 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:16,130 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:01:16,132 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:01:16,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:01:16,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:01:16,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:01:15" (1/1) ... [2021-11-23 01:01:16,147 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:01:16,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:01:16,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:01:16,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5193a151-a86b-4eee-a5d4-a7de12ddc070/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:01:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:01:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:01:16,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:01:16,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:01:16,277 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:01:16,280 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:01:17,569 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:01:21,035 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:01:21,035 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:01:21,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:21 BoogieIcfgContainer [2021-11-23 01:01:21,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:01:21,042 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:01:21,042 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:01:21,053 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:01:21,053 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:01:21" (1/1) ... [2021-11-23 01:01:21,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:01:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:21,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-23 01:01:21,120 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-23 01:01:21,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 01:01:21,123 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:21,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:21,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:21,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:21,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:21,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-23 01:01:21,363 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-23 01:01:21,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:01:21,363 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:21,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:22,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:22,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2021-11-23 01:01:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2021-11-23 01:01:22,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:01:22,376 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:22,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:23,343 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:24,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:24,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2021-11-23 01:01:24,261 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2021-11-23 01:01:24,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:01:24,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:24,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:24,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:24,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:25,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:25,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2021-11-23 01:01:25,175 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2021-11-23 01:01:25,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:01:25,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:25,176 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:26,921 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:28,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:28,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 40 states and 72 transitions. [2021-11-23 01:01:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 72 transitions. [2021-11-23 01:01:28,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:01:28,173 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:28,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:28,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:01:29,701 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:01:30,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:01:30,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 47 states and 87 transitions. [2021-11-23 01:01:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 87 transitions. [2021-11-23 01:01:30,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:01:30,812 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:01:30,812 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:01:31,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:02:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:02:38,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:02:38,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 52 states and 109 transitions. [2021-11-23 01:02:38,703 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 109 transitions. [2021-11-23 01:02:38,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:02:38,705 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:02:38,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:02:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:03:33,872 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:03:35,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:03:35,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 60 states and 121 transitions. [2021-11-23 01:03:35,072 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 121 transitions. [2021-11-23 01:03:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:03:35,073 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:03:35,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:03:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:04:30,455 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:04:30,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:04:30,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 63 states and 125 transitions. [2021-11-23 01:04:30,808 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 125 transitions. [2021-11-23 01:04:30,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:04:30,809 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:04:30,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:04:31,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:26,464 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:05:26,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:26,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 66 states and 130 transitions. [2021-11-23 01:05:26,914 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 130 transitions. [2021-11-23 01:05:26,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:05:26,915 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:26,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:27,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:31,226 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:05:35,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:35,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 80 states and 162 transitions. [2021-11-23 01:05:35,304 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 162 transitions. [2021-11-23 01:05:35,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-23 01:05:35,306 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:35,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:38,547 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:05:40,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 84 states and 176 transitions. [2021-11-23 01:05:40,547 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 176 transitions. [2021-11-23 01:05:40,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:05:40,551 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:40,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:42,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:05:49,546 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:05:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:05:53,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 93 states and 203 transitions. [2021-11-23 01:05:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 203 transitions. [2021-11-23 01:05:53,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:05:53,426 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:05:53,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:05:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:01,291 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:03,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:03,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 101 states and 216 transitions. [2021-11-23 01:06:03,344 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 216 transitions. [2021-11-23 01:06:03,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 01:06:03,345 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:03,345 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:05,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:11,031 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:12,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:12,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 104 states and 221 transitions. [2021-11-23 01:06:12,008 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 221 transitions. [2021-11-23 01:06:12,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:06:12,009 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:12,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:14,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:32,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:32,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 109 states and 245 transitions. [2021-11-23 01:06:32,333 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 245 transitions. [2021-11-23 01:06:32,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:06:32,334 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:32,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:34,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:06:44,768 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:06:46,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:06:46,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 113 states and 253 transitions. [2021-11-23 01:06:46,698 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 253 transitions. [2021-11-23 01:06:46,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:06:46,699 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:06:46,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:06:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:08:04,570 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:08:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:08:17,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 129 states and 306 transitions. [2021-11-23 01:08:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 306 transitions. [2021-11-23 01:08:17,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:08:17,112 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:08:17,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:08:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:30,094 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:09:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:31,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 130 states and 313 transitions. [2021-11-23 01:09:31,322 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 313 transitions. [2021-11-23 01:09:31,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 01:09:31,322 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:31,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:10:44,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:44,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 133 states and 318 transitions. [2021-11-23 01:10:44,004 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 318 transitions. [2021-11-23 01:10:44,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 01:10:44,005 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:44,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat