./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/gcd_2+newton_2_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/gcd_2+newton_2_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de6f52d29ab8cbb588307c65427c40feccf3bbab41549d766ad7ad11f97b3a0b --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:13:13,404 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:13:13,527 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-12 00:13:13,532 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:13:13,533 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:13:13,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:13:13,560 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:13:13,561 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:13:13,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:13:13,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:13:13,563 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:13:13,564 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:13:13,564 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:13:13,565 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:13:13,566 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:13:13,566 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:13:13,567 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:13:13,568 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:13:13,568 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:13:13,569 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:13:13,569 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:13:13,570 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:13:13,571 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:13:13,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:13:13,572 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 00:13:13,573 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:13:13,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 00:13:13,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:13:13,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:13:13,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:13:13,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:13:13,597 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 00:13:13,597 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:13:13,598 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:13:13,598 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:13:13,598 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:13:13,599 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:13,599 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:13:13,600 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:13:13,600 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:13:13,600 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:13:13,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:13:13,601 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:13:13,601 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:13:13,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:13:13,602 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de6f52d29ab8cbb588307c65427c40feccf3bbab41549d766ad7ad11f97b3a0b [2023-11-12 00:13:13,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:13:13,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:13:13,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:13:13,924 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:13:13,925 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:13:13,928 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/combinations/gcd_2+newton_2_5.i [2023-11-12 00:13:16,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:13:17,242 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:13:17,242 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/sv-benchmarks/c/combinations/gcd_2+newton_2_5.i [2023-11-12 00:13:17,251 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/data/5b63023de/a27db135bd1c4f1caac4cb75f00d7e3d/FLAG05ca70b9a [2023-11-12 00:13:17,272 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/data/5b63023de/a27db135bd1c4f1caac4cb75f00d7e3d [2023-11-12 00:13:17,277 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:13:17,280 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:13:17,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:17,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:13:17,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:13:17,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@277c34a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17, skipping insertion in model container [2023-11-12 00:13:17,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,325 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:13:17,504 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/sv-benchmarks/c/combinations/gcd_2+newton_2_5.i[1226,1239] [2023-11-12 00:13:17,542 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/sv-benchmarks/c/combinations/gcd_2+newton_2_5.i[2841,2854] [2023-11-12 00:13:17,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:17,558 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:13:17,569 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/sv-benchmarks/c/combinations/gcd_2+newton_2_5.i[1226,1239] [2023-11-12 00:13:17,581 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_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/sv-benchmarks/c/combinations/gcd_2+newton_2_5.i[2841,2854] [2023-11-12 00:13:17,582 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:13:17,600 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:13:17,600 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17 WrapperNode [2023-11-12 00:13:17,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:13:17,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:17,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:13:17,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:13:17,608 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,617 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,643 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2023-11-12 00:13:17,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:13:17,645 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:13:17,645 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:13:17,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:13:17,655 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,658 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,659 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,665 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,669 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,671 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:13:17,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:13:17,677 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:13:17,677 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:13:17,678 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (1/1) ... [2023-11-12 00:13:17,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:13:17,704 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:17,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:13:17,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:13:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:13:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2023-11-12 00:13:17,764 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2023-11-12 00:13:17,764 INFO L130 BoogieDeclarations]: Found specification of procedure f [2023-11-12 00:13:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2023-11-12 00:13:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:13:17,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:13:17,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:13:17,845 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:13:17,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:13:18,058 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:13:18,164 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:13:18,165 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-12 00:13:18,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:18 BoogieIcfgContainer [2023-11-12 00:13:18,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:13:18,171 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:13:18,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:13:18,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:13:18,175 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:13:17" (1/3) ... [2023-11-12 00:13:18,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a4748e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:18, skipping insertion in model container [2023-11-12 00:13:18,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:13:17" (2/3) ... [2023-11-12 00:13:18,177 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a4748e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:13:18, skipping insertion in model container [2023-11-12 00:13:18,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:13:18" (3/3) ... [2023-11-12 00:13:18,179 INFO L112 eAbstractionObserver]: Analyzing ICFG gcd_2+newton_2_5.i [2023-11-12 00:13:18,201 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:13:18,201 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-12 00:13:18,259 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:13:18,265 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@431d0a7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:13:18,266 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-12 00:13:18,269 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:13:18,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-12 00:13:18,276 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:18,276 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-12 00:13:18,277 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:18,283 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash -499021812, now seen corresponding path program 1 times [2023-11-12 00:13:18,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:18,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123306082] [2023-11-12 00:13:18,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:18,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:18,666 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 00:13:18,666 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:18,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123306082] [2023-11-12 00:13:18,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123306082] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:13:18,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:13:18,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 00:13:18,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758664076] [2023-11-12 00:13:18,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:13:18,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 00:13:18,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:18,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 00:13:18,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:13:18,713 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.4375) internal successors, (23), 18 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:13:18,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:18,783 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2023-11-12 00:13:18,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 00:13:18,788 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-11-12 00:13:18,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:18,795 INFO L225 Difference]: With dead ends: 36 [2023-11-12 00:13:18,796 INFO L226 Difference]: Without dead ends: 21 [2023-11-12 00:13:18,799 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-12 00:13:18,803 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 2 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:18,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 00:13:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-11-12 00:13:18,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2023-11-12 00:13:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:13:18,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-11-12 00:13:18,855 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 6 [2023-11-12 00:13:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:18,856 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-12 00:13:18,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:13:18,856 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-12 00:13:18,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:13:18,858 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:18,858 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-11-12 00:13:18,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:13:18,859 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:18,860 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:18,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1643785969, now seen corresponding path program 1 times [2023-11-12 00:13:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:18,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546721146] [2023-11-12 00:13:18,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:18,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:18,898 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:13:18,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2011236009] [2023-11-12 00:13:18,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:18,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:18,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:18,908 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:18,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 00:13:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:13:19,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-12 00:13:19,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:13:19,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:13:19,652 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 00:13:19,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:13:19,773 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:13:19,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546721146] [2023-11-12 00:13:19,774 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-12 00:13:19,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011236009] [2023-11-12 00:13:19,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011236009] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 00:13:19,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [620304700] [2023-11-12 00:13:19,808 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2023-11-12 00:13:19,808 INFO L166 IcfgInterpreter]: Building call graph [2023-11-12 00:13:19,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-12 00:13:19,817 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-12 00:13:19,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-12 00:13:23,132 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-12 00:13:23,476 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '151#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main1_~x~0#1| 127) (<= (+ |ULTIMATE.start_main1_~y~0#1| 1) |ULTIMATE.start_main1_~g~0#1|) (<= 1 |ULTIMATE.start_main1_~y~0#1|) (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0) (<= 0 (+ |ULTIMATE.start_main1_~x~0#1| 128)) (<= |ULTIMATE.start_gcd_test_#res#1| 127) (= |ULTIMATE.start_main1_~g~0#1| |ULTIMATE.start_gcd_test_#res#1|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond#1| 0))' at error location [2023-11-12 00:13:23,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-12 00:13:23,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-12 00:13:23,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2023-11-12 00:13:23,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268725656] [2023-11-12 00:13:23,477 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-12 00:13:23,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-12 00:13:23,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:13:23,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-12 00:13:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2023-11-12 00:13:23,480 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:13:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:13:23,637 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-12 00:13:23,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-12 00:13:23,637 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 00:13:23,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:13:23,638 INFO L225 Difference]: With dead ends: 28 [2023-11-12 00:13:23,638 INFO L226 Difference]: Without dead ends: 23 [2023-11-12 00:13:23,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-11-12 00:13:23,641 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 00:13:23,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 83 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 00:13:23,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-12 00:13:23,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-12 00:13:23,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-12 00:13:23,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-12 00:13:23,648 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 7 [2023-11-12 00:13:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:13:23,649 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-12 00:13:23,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 00:13:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-12 00:13:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:13:23,650 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:13:23,650 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1] [2023-11-12 00:13:23,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 00:13:23,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:23,855 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:13:23,856 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:13:23,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1300293201, now seen corresponding path program 2 times [2023-11-12 00:13:23,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:13:23,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648691843] [2023-11-12 00:13:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:13:23,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:13:23,873 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-12 00:13:23,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1746203922] [2023-11-12 00:13:23,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-12 00:13:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 00:13:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:13:23,880 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 00:13:23,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0926c11f-3e0e-49e7-bcd2-4b6ae53c9d60/bin/utaipan-verify-NcY6lQBIFX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 00:13:23,973 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-12 00:13:23,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 00:13:23,975 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-12 00:13:23,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 00:14:05,069 WARN L854 $PredicateComparison]: unable to prove that (and (<= |c_ULTIMATE.start_main1_~y~0#1| 127) (let ((.cse0 (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) (.cse14 (* |c_ULTIMATE.start_main1_~y~0#1| 255))) (or (and (let ((.cse7 (+ |c_ULTIMATE.start_gcd_test_~b#1| 256)) (.cse1 (mod .cse14 256))) (or (and (let ((.cse4 (+ .cse1 (- 256)))) (or (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse3 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse2 (mod .cse3 256))) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (not (= .cse2 0)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse2) 0) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse3) 256) 127)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse6 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse8 (mod .cse6 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (let ((.cse5 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse8))) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_33| 1) 0) (= (mod (+ .cse5 (* 255 .cse6)) 256) .cse7) (not (= .cse5 0))))) (not (= .cse8 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse6) 256) 127))))) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse10 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse9 (mod .cse10 256))) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (not (= .cse9 0)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse10) 256)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse9) 0) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|)))))) (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (exists ((v_y_1 Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse13 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse12 (* 256 v_y_1)) (.cse11 (mod (+ .cse14 .cse13) 256))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= .cse11 (+ .cse12 511)) (<= (+ .cse12 384) .cse11) (not (= .cse13 0)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ .cse11 (- 256))) 0) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse13) 256) 127))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (exists ((v_y_1 Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse17 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse16 (* 256 v_y_1)) (.cse15 (mod (+ .cse14 .cse17) 256))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= .cse15 (+ .cse16 511)) (<= (+ .cse16 384) .cse15) (not (= .cse17 0)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse17) 256)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ .cse15 (- 256))) 0))))) (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|))))) .cse0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse19 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse20 (mod .cse19 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (let ((.cse18 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse20))) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_33| 1) 0) (= (mod (+ .cse18 (* 255 .cse19)) 256) .cse7) (not (= .cse18 0))))) (not (= .cse20 0)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse19) 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse22 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse21 (mod .cse22 256))) (and (not (= .cse21 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse21) 256)))) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse22) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_33| 1) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse24 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse23 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (mod (+ .cse14 .cse24) 256) (- 256))))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (not (= .cse23 0)) (not (= .cse24 0)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse24) 256)) (= (mod (+ .cse14 .cse23 .cse24) 256) .cse7))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_33|) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse25 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (not (= .cse25 0)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse25) 256)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (mod (+ .cse14 .cse25) 256) (- 256))) 256) |c_ULTIMATE.start_gcd_test_~b#1|)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= .cse1 (+ 256 |v_ULTIMATE.start_gcd_test_~a#1_33|)) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_33| 1) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse27 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse26 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (mod (+ .cse14 .cse27) 256) (- 256))))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (not (= .cse26 0)) (not (= .cse27 0)) (= (mod (+ .cse14 .cse26 .cse27) 256) .cse7) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse27) 256) 127))))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse29 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (let ((.cse28 (mod .cse29 256))) (and (not (= .cse28 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse28) 256)))) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse29) 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse30 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse4))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (not (= .cse30 0)) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (mod (+ .cse14 .cse30) 256) (- 256))) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse30) 256) 127)))) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_33|))))) (<= 128 .cse1)) (and (or (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse31 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (<= 128 (mod (* .cse31 255) 256)) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (mod .cse31 256)) 0) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ .cse31 .cse14) 256) 127)))) .cse0) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse32 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (<= 128 (mod (+ .cse32 .cse14) 256)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse32 |c_ULTIMATE.start_main1_~y~0#1|) 256))) 0))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse33 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (not (= .cse33 0)) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (let ((.cse34 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse33 |c_ULTIMATE.start_main1_~y~0#1|) 256))))) (and (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (<= 128 (mod (+ .cse33 |c_ULTIMATE.start_main1_~y~0#1| .cse34) 256)) (= (mod .cse34 256) |c_ULTIMATE.start_gcd_test_~b#1|)))) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= (mod (+ .cse33 .cse14) 256) 127)))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse36 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (let ((.cse35 (mod .cse36 256))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse35) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|))) (not (= .cse35 0)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ .cse36 .cse14) 256) 127))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse37 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (let ((.cse38 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse37 |c_ULTIMATE.start_main1_~y~0#1|) 256))))) (and (<= (mod (+ .cse37 |c_ULTIMATE.start_main1_~y~0#1| .cse38) 256) 127) (= (mod .cse38 256) .cse7)))) (<= 128 (mod (+ .cse37 .cse14) 256))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse39 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (mod .cse39 256)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|))) (<= 128 (mod (+ .cse39 .cse14) 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|)))) (and .cse0 (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse40 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (mod .cse40 256)) 0) (<= 128 (mod (+ .cse40 .cse14) 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|))))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse41 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (not (= .cse41 0)) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse41 |c_ULTIMATE.start_main1_~y~0#1|) 256))) 0) (<= (mod (+ .cse41 .cse14) 256) 127)))) .cse0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse42 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| .cse1))) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= .cse1 |v_ULTIMATE.start_gcd_test_~a#1_33|) (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse42 |c_ULTIMATE.start_main1_~y~0#1|) 256))) 256) |c_ULTIMATE.start_gcd_test_~b#1|))) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= 128 (mod (+ .cse42 .cse14) 256)))))) (not (= .cse1 0)) (<= .cse1 127)))) (<= (+ |c_ULTIMATE.start_main1_~y~0#1| 1) 0)) (and (not (= |c_ULTIMATE.start_main1_~y~0#1| 0)) (<= 0 |c_ULTIMATE.start_main1_~y~0#1|) (or (and (or (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (exists ((v_z_4 Int)) (and (exists ((v_y_4 Int)) (let ((.cse43 (+ (* 256 v_y_4) (* 255 v_z_4)))) (and (<= 0 .cse43) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse43) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse44 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= .cse43 (mod .cse44 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse44) 256) 127))))))) (<= v_z_4 255) (<= 128 v_z_4))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (exists ((v_z_4 Int)) (and (exists ((v_y_4 Int)) (let ((.cse45 (+ (* 256 v_y_4) (* 255 v_z_4)))) (and (<= 0 .cse45) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| .cse45) 0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse46 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= .cse45 (mod .cse46 256)) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse46) 256)))))))) (<= v_z_4 255) (<= 128 v_z_4)))))) .cse0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse47 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (not (= .cse47 0)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse14 .cse47) 256))) 256)) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse47) 256) 127)))))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse48 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (and (= (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (mod .cse48 256)) 256) |c_ULTIMATE.start_gcd_test_~b#1|) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse48) 256))))) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|))) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse50 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse51 (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (mod .cse50 256)))) (let ((.cse49 (mod .cse51 256))) (and (<= .cse49 127) (= .cse49 |c_ULTIMATE.start_gcd_test_~b#1|) (<= 0 |v_ULTIMATE.start_gcd_test_~a#1_32|) (<= 128 (mod (+ (* 255 .cse50) .cse51) 256)) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse50) 256) 127)))))) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|))) (and (or (exists ((v_y_6 Int) (|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse54 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse52 (* 256 v_y_6)) (.cse53 (mod (+ .cse14 .cse54) 256))) (and (<= (+ 384 .cse52) .cse53) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (<= .cse53 (+ 511 .cse52)) (not (= .cse54 0)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) .cse53)) 0) (<= (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse54) 256) 127))))) (exists ((v_y_6 Int) (|v_ULTIMATE.start_gcd_test_~a#1_33| Int) (|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse57 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (let ((.cse55 (* 256 v_y_6)) (.cse56 (mod (+ .cse14 .cse57) 256))) (and (<= (+ 384 .cse55) .cse56) (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (<= .cse56 (+ 511 .cse55)) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse57) 256)) (= (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) .cse56)) 0)))))) .cse0) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_33| Int)) (and (<= |c_ULTIMATE.start_main1_~y~0#1| |v_ULTIMATE.start_gcd_test_~a#1_33|) (exists ((|v_ULTIMATE.start_gcd_test_~a#1_32| Int)) (let ((.cse58 (mod |v_ULTIMATE.start_gcd_test_~a#1_32| |c_ULTIMATE.start_main1_~y~0#1|))) (and (<= (+ |v_ULTIMATE.start_gcd_test_~a#1_32| 1) 0) (<= 128 (mod (+ |c_ULTIMATE.start_main1_~y~0#1| .cse58) 256)) (= |c_ULTIMATE.start_gcd_test_~b#1| (mod (mod |v_ULTIMATE.start_gcd_test_~a#1_33| (+ (- 256) (mod (+ .cse14 .cse58) 256))) 256)))))))))))) is different from false