./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/gcd_3+newton_3_3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/gcd_3+newton_3_3.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f1a378db9c8e9c75f21e4ff39c56b4f3e8fbe3be2186b700f5c564e27346aa95 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 19:51:37,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 19:51:37,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 19:51:37,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 19:51:37,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 19:51:37,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 19:51:37,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 19:51:37,436 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 19:51:37,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 19:51:37,439 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 19:51:37,440 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 19:51:37,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 19:51:37,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 19:51:37,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 19:51:37,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 19:51:37,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 19:51:37,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 19:51:37,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 19:51:37,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 19:51:37,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 19:51:37,448 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 19:51:37,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 19:51:37,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 19:51:37,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 19:51:37,451 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 19:51:37,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 19:51:37,458 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 19:51:37,459 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 19:51:37,460 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 19:51:37,460 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 19:51:37,461 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 19:51:37,461 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 19:51:37,462 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 19:51:37,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 19:51:37,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 19:51:37,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 19:51:37,466 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 19:51:37,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 19:51:37,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 19:51:37,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 19:51:37,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 19:51:37,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 19:51:37,470 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 19:51:37,499 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 19:51:37,500 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 19:51:37,500 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 19:51:37,500 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 19:51:37,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 19:51:37,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 19:51:37,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 19:51:37,504 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 19:51:37,504 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 19:51:37,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 19:51:37,505 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 19:51:37,505 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 19:51:37,505 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 19:51:37,506 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 19:51:37,507 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 19:51:37,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 19:51:37,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 19:51:37,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 19:51:37,507 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 19:51:37,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:51:37,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 19:51:37,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 19:51:37,508 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 19:51:37,508 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 19:51:37,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 19:51:37,509 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 19:51:37,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 19:51:37,509 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 19:51:37,509 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f1a378db9c8e9c75f21e4ff39c56b4f3e8fbe3be2186b700f5c564e27346aa95 [2022-07-19 19:51:37,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 19:51:37,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 19:51:37,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 19:51:37,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 19:51:37,747 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 19:51:37,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/gcd_3+newton_3_3.i [2022-07-19 19:51:37,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ff66c16/bb3ac711d86e47f3b949b3b1d2d7be4d/FLAG3e93ee423 [2022-07-19 19:51:38,193 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 19:51:38,194 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_3_3.i [2022-07-19 19:51:38,203 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ff66c16/bb3ac711d86e47f3b949b3b1d2d7be4d/FLAG3e93ee423 [2022-07-19 19:51:38,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f4ff66c16/bb3ac711d86e47f3b949b3b1d2d7be4d [2022-07-19 19:51:38,607 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 19:51:38,608 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 19:51:38,610 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 19:51:38,610 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 19:51:38,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 19:51:38,614 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d7afc80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38, skipping insertion in model container [2022-07-19 19:51:38,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,621 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 19:51:38,644 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 19:51:38,745 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_3_3.i[1226,1239] [2022-07-19 19:51:38,766 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_3_3.i[2862,2875] [2022-07-19 19:51:38,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:51:38,774 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 19:51:38,783 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_3_3.i[1226,1239] [2022-07-19 19:51:38,792 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/gcd_3+newton_3_3.i[2862,2875] [2022-07-19 19:51:38,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 19:51:38,805 INFO L208 MainTranslator]: Completed translation [2022-07-19 19:51:38,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38 WrapperNode [2022-07-19 19:51:38,810 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 19:51:38,811 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 19:51:38,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 19:51:38,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 19:51:38,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,832 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,859 INFO L137 Inliner]: procedures = 27, calls = 18, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 82 [2022-07-19 19:51:38,860 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 19:51:38,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 19:51:38,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 19:51:38,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 19:51:38,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 19:51:38,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 19:51:38,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 19:51:38,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 19:51:38,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (1/1) ... [2022-07-19 19:51:38,909 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 19:51:38,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:51:38,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 19:51:38,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 19:51:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2022-07-19 19:51:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2022-07-19 19:51:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure f [2022-07-19 19:51:38,968 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2022-07-19 19:51:38,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 19:51:38,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 19:51:38,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 19:51:38,971 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 19:51:39,027 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 19:51:39,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 19:51:39,191 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 19:51:39,210 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 19:51:39,210 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-19 19:51:39,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:51:39 BoogieIcfgContainer [2022-07-19 19:51:39,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 19:51:39,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 19:51:39,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 19:51:39,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 19:51:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 07:51:38" (1/3) ... [2022-07-19 19:51:39,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30494f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:51:39, skipping insertion in model container [2022-07-19 19:51:39,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 07:51:38" (2/3) ... [2022-07-19 19:51:39,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30494f33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 07:51:39, skipping insertion in model container [2022-07-19 19:51:39,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 07:51:39" (3/3) ... [2022-07-19 19:51:39,220 INFO L111 eAbstractionObserver]: Analyzing ICFG gcd_3+newton_3_3.i [2022-07-19 19:51:39,230 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 19:51:39,230 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-19 19:51:39,270 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 19:51:39,276 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@560ad8e7, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1e785347 [2022-07-19 19:51:39,276 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-19 19:51:39,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 19:51:39,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 19:51:39,287 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:51:39,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:51:39,288 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:51:39,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:51:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash -1709385323, now seen corresponding path program 1 times [2022-07-19 19:51:39,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:51:39,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705785099] [2022-07-19 19:51:39,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:51:39,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:51:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:51:39,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:51:39,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:51:39,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705785099] [2022-07-19 19:51:39,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705785099] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:51:39,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:51:39,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 19:51:39,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958063363] [2022-07-19 19:51:39,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:51:39,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 19:51:39,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:51:39,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 19:51:39,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 19:51:39,519 INFO L87 Difference]: Start difference. First operand has 40 states, 29 states have (on average 1.3793103448275863) internal successors, (40), 31 states have internal predecessors, (40), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-19 19:51:39,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:51:39,567 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2022-07-19 19:51:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-19 19:51:39,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2022-07-19 19:51:39,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:51:39,575 INFO L225 Difference]: With dead ends: 96 [2022-07-19 19:51:39,575 INFO L226 Difference]: Without dead ends: 39 [2022-07-19 19:51:39,578 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 19:51:39,581 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 23 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:51:39,582 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 134 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:51:39,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-07-19 19:51:39,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2022-07-19 19:51:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 19:51:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2022-07-19 19:51:39,614 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 11 [2022-07-19 19:51:39,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:51:39,615 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2022-07-19 19:51:39,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2022-07-19 19:51:39,615 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2022-07-19 19:51:39,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-07-19 19:51:39,616 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:51:39,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:51:39,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 19:51:39,617 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:51:39,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:51:39,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1776235347, now seen corresponding path program 1 times [2022-07-19 19:51:39,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:51:39,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346834159] [2022-07-19 19:51:39,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:51:39,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:51:39,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:51:39,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:51:39,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:51:39,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346834159] [2022-07-19 19:51:39,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346834159] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 19:51:39,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 19:51:39,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 19:51:39,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223518033] [2022-07-19 19:51:39,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 19:51:39,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 19:51:39,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:51:39,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 19:51:39,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 19:51:39,692 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-07-19 19:51:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:51:39,750 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-07-19 19:51:39,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 19:51:39,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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 11 [2022-07-19 19:51:39,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:51:39,752 INFO L225 Difference]: With dead ends: 39 [2022-07-19 19:51:39,752 INFO L226 Difference]: Without dead ends: 33 [2022-07-19 19:51:39,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-07-19 19:51:39,753 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:51:39,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 155 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-19 19:51:39,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-07-19 19:51:39,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-07-19 19:51:39,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 19:51:39,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2022-07-19 19:51:39,761 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 11 [2022-07-19 19:51:39,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:51:39,762 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2022-07-19 19:51:39,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 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) [2022-07-19 19:51:39,762 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2022-07-19 19:51:39,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 19:51:39,763 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:51:39,763 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:51:39,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 19:51:39,764 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:51:39,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:51:39,764 INFO L85 PathProgramCache]: Analyzing trace with hash 830014046, now seen corresponding path program 1 times [2022-07-19 19:51:39,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:51:39,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815993533] [2022-07-19 19:51:39,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:51:39,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:51:39,779 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 19:51:39,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [581709056] [2022-07-19 19:51:39,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:51:39,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 19:51:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:51:39,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 19:51:39,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-19 19:51:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:51:39,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 18 conjunts are in the unsatisfiable core [2022-07-19 19:51:39,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 19:51:57,905 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:51:57,905 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 19:52:04,174 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:52:04,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:52:04,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815993533] [2022-07-19 19:52:04,175 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 19:52:04,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581709056] [2022-07-19 19:52:04,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581709056] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 19:52:04,177 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 19:52:04,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-07-19 19:52:04,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024936134] [2022-07-19 19:52:04,178 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 19:52:04,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-19 19:52:04,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:52:04,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-19 19:52:04,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=214, Unknown=4, NotChecked=0, Total=272 [2022-07-19 19:52:04,185 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-07-19 19:52:04,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:52:04,457 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-07-19 19:52:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 19:52:04,457 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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 12 [2022-07-19 19:52:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:52:04,458 INFO L225 Difference]: With dead ends: 41 [2022-07-19 19:52:04,458 INFO L226 Difference]: Without dead ends: 35 [2022-07-19 19:52:04,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 21.8s TimeCoverageRelationStatistics Valid=63, Invalid=239, Unknown=4, NotChecked=0, Total=306 [2022-07-19 19:52:04,460 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 5 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-19 19:52:04,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 293 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-07-19 19:52:04,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-07-19 19:52:04,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 34. [2022-07-19 19:52:04,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 19:52:04,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2022-07-19 19:52:04,466 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 12 [2022-07-19 19:52:04,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:52:04,466 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2022-07-19 19:52:04,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 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) [2022-07-19 19:52:04,466 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2022-07-19 19:52:04,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-07-19 19:52:04,467 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:52:04,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:52:04,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-19 19:52:04,671 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 19:52:04,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:52:04,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:52:04,672 INFO L85 PathProgramCache]: Analyzing trace with hash 20667420, now seen corresponding path program 1 times [2022-07-19 19:52:04,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:52:04,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405617935] [2022-07-19 19:52:04,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:52:04,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:52:04,681 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 19:52:04,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [673477301] [2022-07-19 19:52:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:52:04,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 19:52:04,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:52:04,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 19:52:04,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-19 19:52:04,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 19:52:04,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 22 conjunts are in the unsatisfiable core [2022-07-19 19:52:04,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 19:52:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:52:21,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 19:52:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:52:32,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 19:52:32,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405617935] [2022-07-19 19:52:32,427 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-19 19:52:32,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673477301] [2022-07-19 19:52:32,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673477301] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-19 19:52:32,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-19 19:52:32,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 16 [2022-07-19 19:52:32,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082212242] [2022-07-19 19:52:32,432 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-19 19:52:32,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-07-19 19:52:32,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 19:52:32,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-07-19 19:52:32,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=178, Unknown=9, NotChecked=0, Total=240 [2022-07-19 19:52:32,435 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand has 16 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-07-19 19:52:33,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 19:52:33,229 INFO L93 Difference]: Finished difference Result 46 states and 52 transitions. [2022-07-19 19:52:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 19:52:33,229 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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 12 [2022-07-19 19:52:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 19:52:33,230 INFO L225 Difference]: With dead ends: 46 [2022-07-19 19:52:33,230 INFO L226 Difference]: Without dead ends: 37 [2022-07-19 19:52:33,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 26.6s TimeCoverageRelationStatistics Valid=62, Invalid=201, Unknown=9, NotChecked=0, Total=272 [2022-07-19 19:52:33,232 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 36 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-19 19:52:33,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 281 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 30 Invalid, 0 Unknown, 36 Unchecked, 0.3s Time] [2022-07-19 19:52:33,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-07-19 19:52:33,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 35. [2022-07-19 19:52:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-07-19 19:52:33,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2022-07-19 19:52:33,238 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 12 [2022-07-19 19:52:33,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 19:52:33,238 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2022-07-19 19:52:33,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-07-19 19:52:33,238 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2022-07-19 19:52:33,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-07-19 19:52:33,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 19:52:33,239 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 19:52:33,264 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-19 19:52:33,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-07-19 19:52:33,463 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 19:52:33,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 19:52:33,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1518646018, now seen corresponding path program 2 times [2022-07-19 19:52:33,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 19:52:33,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517654437] [2022-07-19 19:52:33,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 19:52:33,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 19:52:33,479 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-19 19:52:33,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [326975666] [2022-07-19 19:52:33,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-19 19:52:33,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-19 19:52:33,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 19:52:33,483 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-19 19:52:33,484 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-19 19:52:33,583 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-19 19:52:33,583 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-19 19:52:33,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 37 conjunts are in the unsatisfiable core [2022-07-19 19:52:33,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-19 19:53:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 3 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 19:53:51,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-19 19:55:13,069 WARN L233 SmtUtils]: Spent 54.93s on a formula simplification. DAG size of input: 82 DAG size of output: 58 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-07-19 19:56:07,644 WARN L855 $PredicateComparison]: unable to prove that (or (<= |c_ULTIMATE.start_main1_~x~0#1| 0) (let ((.cse24 (mod |c_ULTIMATE.start_gcd_test_~a#1| |c_ULTIMATE.start_gcd_test_~b#1|))) (let ((.cse28 (mod (+ .cse24 (* |c_ULTIMATE.start_gcd_test_~b#1| 255)) 256))) (let ((.cse26 (+ (- 256) .cse28))) (let ((.cse10 (< |c_ULTIMATE.start_gcd_test_~a#1| 0)) (.cse25 (mod (mod |c_ULTIMATE.start_gcd_test_~b#1| .cse26) 256)) (.cse27 (mod (mod |c_ULTIMATE.start_gcd_test_~b#1| .cse28) 256))) (let ((.cse13 (mod .cse24 256)) (.cse5 (<= .cse28 127)) (.cse20 (= .cse28 0)) (.cse21 (not (= (mod (mod .cse28 .cse27) 256) 0))) (.cse22 (<= .cse27 |c_ULTIMATE.start_main1_~x~0#1|)) (.cse8 (<= (mod (+ .cse24 |c_ULTIMATE.start_gcd_test_~b#1|) 256) 127)) (.cse16 (not (= (mod (mod .cse26 .cse25) 256) 0))) (.cse17 (not .cse10)) (.cse18 (<= .cse25 |c_ULTIMATE.start_main1_~x~0#1|))) (let ((.cse4 (or .cse16 .cse17 .cse18)) (.cse2 (not .cse8)) (.cse9 (or .cse20 .cse21 .cse17 .cse22)) (.cse0 (< |c_ULTIMATE.start_gcd_test_~b#1| 0)) (.cse6 (not .cse5)) (.cse14 (<= .cse13 127))) (and (or (let ((.cse3 (let ((.cse11 (+ (- 256) .cse13))) (let ((.cse12 (mod (mod |c_ULTIMATE.start_gcd_test_~b#1| .cse11) 256))) (or .cse10 (not (= 0 (mod (mod .cse11 .cse12) 256))) (<= .cse12 |c_ULTIMATE.start_main1_~x~0#1|)))))) (and (or (let ((.cse1 (and .cse3 .cse4))) (and (or .cse0 .cse1) (or .cse0 .cse2 .cse1))) .cse5) (or .cse6 (let ((.cse7 (and .cse3 .cse9))) (and (or .cse0 .cse7) (or .cse0 .cse8 .cse7)))))) .cse14) (or (let ((.cse15 (= .cse24 0))) (let ((.cse19 (let ((.cse23 (mod (mod |c_ULTIMATE.start_gcd_test_~b#1| .cse13) 256))) (or (not (= (mod (mod .cse13 .cse23) 256) 0)) (and .cse10 (not .cse15)) (<= .cse23 |c_ULTIMATE.start_main1_~x~0#1|) (= .cse13 0))))) (and (or (and (or .cse0 (and (or .cse15 .cse16 .cse17 .cse18) .cse19)) (or (and .cse4 .cse19) .cse0 .cse8)) .cse5) (or (and (or .cse0 .cse2 (and .cse9 .cse19)) (or (and (or .cse15 .cse20 .cse21 .cse17 .cse22) .cse19) .cse0 .cse8)) .cse6)))) (not .cse14))))))))) (= |c_ULTIMATE.start_gcd_test_~b#1| 0)) is different from true