./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/gcd_3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --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 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:51:04,151 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:51:04,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:51:04,293 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:51:04,294 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:51:04,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:51:04,337 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:51:04,338 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:51:04,339 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:51:04,344 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:51:04,345 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:51:04,345 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:51:04,346 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:51:04,347 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:51:04,348 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:51:04,348 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:51:04,349 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:51:04,349 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:51:04,350 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:51:04,350 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:51:04,351 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:51:04,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:51:04,352 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:51:04,354 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:51:04,355 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:51:04,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:51:04,356 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:04,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:51:04,357 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:51:04,357 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:51:04,359 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:51:04,359 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:51:04,359 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:51:04,360 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_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 17434adceb46f4d2d18d3a85d6d4ed55515fdf3dbd1a573601edbae0be0a7746 [2023-11-24 22:51:04,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:51:04,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:51:04,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:51:04,774 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:51:04,775 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:51:04,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/bitvector/gcd_3.c [2023-11-24 22:51:08,009 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:51:08,207 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:51:08,208 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/sv-benchmarks/c/bitvector/gcd_3.c [2023-11-24 22:51:08,216 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/data/5a99f557e/1e8a0c2fd4f641b48d530e802a6c1251/FLAG6e2913467 [2023-11-24 22:51:08,236 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/data/5a99f557e/1e8a0c2fd4f641b48d530e802a6c1251 [2023-11-24 22:51:08,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:51:08,245 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:51:08,248 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:08,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:51:08,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:51:08,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,258 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1861b8f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08, skipping insertion in model container [2023-11-24 22:51:08,258 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,283 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:51:08,460 WARN L240 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_2117e023-3c60-4778-999d-cbba93833a46/sv-benchmarks/c/bitvector/gcd_3.c[664,677] [2023-11-24 22:51:08,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:08,488 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:51:08,502 WARN L240 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_2117e023-3c60-4778-999d-cbba93833a46/sv-benchmarks/c/bitvector/gcd_3.c[664,677] [2023-11-24 22:51:08,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:51:08,562 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:51:08,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08 WrapperNode [2023-11-24 22:51:08,565 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:51:08,566 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:08,568 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:51:08,568 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:51:08,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,639 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2023-11-24 22:51:08,640 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:51:08,641 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:51:08,641 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:51:08,641 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:51:08,651 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,653 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,653 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,661 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,665 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:51:08,666 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:51:08,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:51:08,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:51:08,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:51:08" (1/1) ... [2023-11-24 22:51:08,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:51:08,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:51:08,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:51:08,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2117e023-3c60-4778-999d-cbba93833a46/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:51:08,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:51:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:51:08,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:51:08,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:51:08,844 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:51:08,846 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:51:09,063 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:51:09,196 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:51:09,200 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:51:09,202 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:09 BoogieIcfgContainer [2023-11-24 22:51:09,202 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:51:09,203 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:51:09,204 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:51:09,215 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:51:09,216 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:51:09" (1/1) ... [2023-11-24 22:51:09,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:51:09,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:09,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2023-11-24 22:51:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2023-11-24 22:51:09,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-24 22:51:09,306 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:09,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:09,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:09,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:51:10,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:51:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2023-11-24 22:51:10,021 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2023-11-24 22:51:10,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:51:10,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:51:10,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:51:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:51:10,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-24 22:51:10,116 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:51:24,749 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse0 (mod (* |c_ULTIMATE.start_main_~x~0#1| 255) 256))) (let ((.cse8 (<= 0 |c_ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= .cse0 127)) (.cse5 (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse4 (+ (- 256) .cse0)) (.cse6 (<= 128 .cse0)) (.cse7 (<= (+ |c_ULTIMATE.start_main_~x~0#1| 1) 0))) (or (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse0 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256)) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) .cse1) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (let ((.cse2 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (not (= .cse2 0)) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (= (mod (+ .cse2 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) .cse3) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0))) .cse5)) .cse6)) .cse7) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) .cse8) (and .cse8 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse0 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256)) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))) .cse1) (and (or (and .cse5 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (let ((.cse9 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (not (= .cse9 0)) (= (mod (+ .cse9 (* 255 |v_ULTIMATE.start_gcd_test_~b#1_24|)) 256) .cse3) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))))) .cse6)) .cse7)))) is different from true [2023-11-24 22:51:35,620 WARN L876 $PredicateComparison]: unable to prove that (let ((.cse4 (mod (* |c_ULTIMATE.start_main_~x~0#1| 255) 256))) (let ((.cse0 (<= 0 |c_ULTIMATE.start_main_~x~0#1|)) (.cse2 (+ (- 256) .cse4)) (.cse3 (<= 128 .cse4)) (.cse5 (<= .cse4 127)) (.cse1 (<= (+ |c_ULTIMATE.start_main_~x~0#1| 1) 0))) (or (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) 0) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) 0) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|))))) (and .cse1 (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (= (mod .cse2 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0))) .cse3) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (= (mod (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) 0) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) .cse5))) (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod .cse2 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))) .cse3) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (= (mod (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) 0) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (<= |c_ULTIMATE.start_main_~g~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))) .cse5)) .cse1)))) is different from true [2023-11-24 22:51:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2023-11-24 22:51:47,631 WARN L876 $PredicateComparison]: unable to prove that (and (not (or (= |c_ULTIMATE.start_main_~x~0#1| |c_ULTIMATE.start_gcd_test_~a#1|) (< |c_ULTIMATE.start_main_~x~0#1| 0))) (let ((.cse0 (mod (* |c_ULTIMATE.start_main_~x~0#1| 255) 256))) (let ((.cse8 (<= 0 |c_ULTIMATE.start_main_~x~0#1|)) (.cse1 (<= .cse0 127)) (.cse5 (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (.cse3 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse4 (+ (- 256) .cse0)) (.cse6 (<= 128 .cse0)) (.cse7 (<= (+ |c_ULTIMATE.start_main_~x~0#1| 1) 0))) (or (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse0 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256)) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) .cse1) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (let ((.cse2 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (not (= .cse2 0)) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (= (mod (+ .cse2 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) .cse3) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0))) .cse5)) .cse6)) .cse7) (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= (+ |v_ULTIMATE.start_gcd_test_~b#1_24| 1) 0) (<= 0 (+ 128 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) .cse8) (and .cse8 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod (mod |c_ULTIMATE.start_main_~x~0#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod .cse0 |v_ULTIMATE.start_gcd_test_~b#1_24|) 256)) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))) .cse1) (and (or (and .cse5 (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (= (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|) 0) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|)))) (exists ((|v_ULTIMATE.start_gcd_test_~b#1_24| Int)) (let ((.cse9 (mod .cse4 |v_ULTIMATE.start_gcd_test_~b#1_24|))) (and (<= |c_ULTIMATE.start_gcd_test_~a#1| |v_ULTIMATE.start_gcd_test_~b#1_24|) (<= |v_ULTIMATE.start_gcd_test_~b#1_24| 127) (not (= .cse9 0)) (= (mod (+ .cse9 (* 255 |v_ULTIMATE.start_gcd_test_~b#1_24|)) 256) .cse3) (not (= |v_ULTIMATE.start_gcd_test_~b#1_24| 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~b#1_24|))))) .cse6)) .cse7))))) is different from true