./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV --witnessprinter.witness.filename witness --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 e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:01:28,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:01:28,483 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2023-11-12 00:01:28,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:01:28,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:01:28,514 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:01:28,515 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:01:28,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:01:28,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:01:28,517 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:01:28,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:01:28,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:01:28,519 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:01:28,519 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-12 00:01:28,520 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-12 00:01:28,520 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-12 00:01:28,521 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:01:28,521 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:01:28,522 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:01:28,523 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:01:28,523 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:01:28,527 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:01:28,528 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:01:28,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:01:28,529 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:01:28,529 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:01:28,530 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:01:28,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:01:28,530 INFO L153 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_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4b2b33802a1e3212162c0e55c40efaad08f7abe5e8690f0efef5fec80921b38 [2023-11-12 00:01:28,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:01:28,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:01:28,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:01:28,859 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:01:28,859 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:01:28,861 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-12 00:01:32,068 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:01:32,269 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:01:32,269 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/sv-benchmarks/c/recursive-with-pointer/simple-recursive.c [2023-11-12 00:01:32,275 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/data/965566f4b/e61a0e61e1b04329b5f1b84abde1ffcd/FLAG067f2ef5d [2023-11-12 00:01:32,290 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/data/965566f4b/e61a0e61e1b04329b5f1b84abde1ffcd [2023-11-12 00:01:32,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:01:32,295 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:01:32,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:01:32,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:01:32,302 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:01:32,303 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,304 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15565fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32, skipping insertion in model container [2023-11-12 00:01:32,304 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,324 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:01:32,471 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:01:32,482 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:01:32,497 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:01:32,512 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:01:32,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32 WrapperNode [2023-11-12 00:01:32,513 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:01:32,514 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:01:32,514 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:01:32,514 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:01:32,523 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,547 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2023-11-12 00:01:32,547 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:01:32,548 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:01:32,548 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:01:32,548 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:01:32,557 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,557 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,560 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,560 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,565 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,566 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,567 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,570 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:01:32,571 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:01:32,571 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:01:32,571 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:01:32,572 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:01:32,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:01:32,605 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:01:32,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_48a0be70-d8c8-43b8-ab68-f4021d9cef02/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:01:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:01:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2023-11-12 00:01:32,646 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2023-11-12 00:01:32,646 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:01:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:01:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure plus [2023-11-12 00:01:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure plus [2023-11-12 00:01:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:01:32,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:01:32,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:01:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:01:32,648 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:01:32,721 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:01:32,723 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:01:32,884 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:01:32,930 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:01:32,931 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 00:01:32,933 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:01:32 BoogieIcfgContainer [2023-11-12 00:01:32,934 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:01:32,935 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:01:32,935 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:01:32,946 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:01:32,954 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:01:32" (1/1) ... [2023-11-12 00:01:32,965 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:01:33,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:33,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 33 states and 35 transitions. [2023-11-12 00:01:33,038 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2023-11-12 00:01:33,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-12 00:01:33,040 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:33,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:33,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:33,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:33,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 32 states and 34 transitions. [2023-11-12 00:01:33,344 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2023-11-12 00:01:33,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2023-11-12 00:01:33,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:33,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:33,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:33,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:33,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 31 states and 33 transitions. [2023-11-12 00:01:33,746 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-11-12 00:01:33,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:01:33,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:33,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:33,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:33,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:33,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 33 states and 36 transitions. [2023-11-12 00:01:33,978 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2023-11-12 00:01:33,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:01:33,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:33,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:34,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:34,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:34,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:34,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 35 states and 39 transitions. [2023-11-12 00:01:34,740 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2023-11-12 00:01:34,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:01:34,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:34,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:34,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:35,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:35,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 38 states and 44 transitions. [2023-11-12 00:01:35,759 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2023-11-12 00:01:35,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:01:35,759 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:35,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 41 states and 48 transitions. [2023-11-12 00:01:36,209 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2023-11-12 00:01:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:01:36,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:36,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:36,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:37,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:37,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 45 states and 54 transitions. [2023-11-12 00:01:37,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2023-11-12 00:01:37,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:01:37,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:37,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:37,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:37,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:37,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 44 states and 53 transitions. [2023-11-12 00:01:37,381 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 53 transitions. [2023-11-12 00:01:37,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 00:01:37,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:37,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:37,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:38,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:38,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 45 states and 55 transitions. [2023-11-12 00:01:38,477 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2023-11-12 00:01:38,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:01:38,478 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:38,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:38,539 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:01:38,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:38,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 42 states and 51 transitions. [2023-11-12 00:01:38,562 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2023-11-12 00:01:38,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 00:01:38,564 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:38,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:38,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:38,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:01:39,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:39,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 45 states and 56 transitions. [2023-11-12 00:01:39,801 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2023-11-12 00:01:39,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:01:39,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:39,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:01:40,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:40,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 40 states and 50 transitions. [2023-11-12 00:01:40,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2023-11-12 00:01:40,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 00:01:40,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:40,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:40,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:40,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 00:01:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:40,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 53 transitions. [2023-11-12 00:01:40,565 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 53 transitions. [2023-11-12 00:01:40,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:01:40,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:40,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:40,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-12 00:01:41,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:41,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 32 states and 39 transitions. [2023-11-12 00:01:41,720 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-11-12 00:01:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:01:41,720 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:41,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:41,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:46,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:46,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 40 states and 55 transitions. [2023-11-12 00:01:46,387 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 55 transitions. [2023-11-12 00:01:46,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 00:01:46,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:47,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:48,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:48,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 56 transitions. [2023-11-12 00:01:48,793 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2023-11-12 00:01:48,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:01:48,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:48,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:48,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:49,925 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:54,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:54,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 50 states and 74 transitions. [2023-11-12 00:01:54,561 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2023-11-12 00:01:54,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:01:54,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:54,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:54,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:54,859 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:56,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:56,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 52 states and 74 transitions. [2023-11-12 00:01:56,658 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 74 transitions. [2023-11-12 00:01:56,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-12 00:01:56,660 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:56,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:56,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:56,989 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:01:58,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:01:58,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 55 states and 79 transitions. [2023-11-12 00:01:58,352 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2023-11-12 00:01:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 00:01:58,353 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:01:58,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:01:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:01:59,804 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:05,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 63 states and 98 transitions. [2023-11-12 00:02:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 98 transitions. [2023-11-12 00:02:05,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-12 00:02:05,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:06,396 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:09,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 68 states and 104 transitions. [2023-11-12 00:02:09,282 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 104 transitions. [2023-11-12 00:02:09,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:02:09,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:09,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:11,145 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:18,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:18,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 76 states and 125 transitions. [2023-11-12 00:02:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 125 transitions. [2023-11-12 00:02:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:02:18,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:18,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:18,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:19,125 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:20,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:20,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 78 states and 126 transitions. [2023-11-12 00:02:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 126 transitions. [2023-11-12 00:02:20,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-11-12 00:02:20,793 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:20,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:21,482 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:23,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:23,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 81 states and 131 transitions. [2023-11-12 00:02:23,120 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 131 transitions. [2023-11-12 00:02:23,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-12 00:02:23,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:23,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat