./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3dbbec33 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/nla-digbench-scaling/egcd-ll_valuebound5.c -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 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 12:07:29,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 12:07:29,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 12:07:29,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 12:07:29,672 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 12:07:29,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 12:07:29,676 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 12:07:29,678 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 12:07:29,697 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 12:07:29,702 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 12:07:29,703 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 12:07:29,705 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 12:07:29,705 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 12:07:29,707 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 12:07:29,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 12:07:29,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 12:07:29,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 12:07:29,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 12:07:29,711 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 12:07:29,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 12:07:29,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 12:07:29,716 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 12:07:29,717 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 12:07:29,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 12:07:29,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 12:07:29,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 12:07:29,722 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 12:07:29,723 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 12:07:29,723 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 12:07:29,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 12:07:29,724 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 12:07:29,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 12:07:29,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 12:07:29,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 12:07:29,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 12:07:29,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 12:07:29,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 12:07:29,740 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 12:07:29,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 12:07:29,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 12:07:29,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 12:07:29,744 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-14 12:07:29,783 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 12:07:29,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 12:07:29,784 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 12:07:29,784 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 12:07:29,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 12:07:29,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 12:07:29,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 12:07:29,786 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 12:07:29,786 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 12:07:29,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 12:07:29,787 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 12:07:29,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 12:07:29,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 12:07:29,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 12:07:29,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 12:07:29,788 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 12:07:29,788 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 12:07:29,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 12:07:29,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 12:07:29,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 12:07:29,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 12:07:29,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 12:07:29,789 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 12:07:29,790 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 12:07:29,791 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd [2023-02-14 12:07:30,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 12:07:30,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 12:07:30,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 12:07:30,166 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 12:07:30,166 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 12:07:30,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c [2023-02-14 12:07:31,749 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 12:07:31,991 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 12:07:31,992 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c [2023-02-14 12:07:31,998 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927188a0b/d251300f5482456091e4684cdf97d875/FLAG48a373c89 [2023-02-14 12:07:32,026 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/927188a0b/d251300f5482456091e4684cdf97d875 [2023-02-14 12:07:32,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 12:07:32,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 12:07:32,030 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 12:07:32,030 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 12:07:32,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 12:07:32,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,033 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@496817b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32, skipping insertion in model container [2023-02-14 12:07:32,033 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,038 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 12:07:32,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 12:07:32,252 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c[489,502] [2023-02-14 12:07:32,285 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 12:07:32,305 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 12:07:32,320 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c[489,502] [2023-02-14 12:07:32,338 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 12:07:32,359 INFO L208 MainTranslator]: Completed translation [2023-02-14 12:07:32,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32 WrapperNode [2023-02-14 12:07:32,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 12:07:32,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 12:07:32,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 12:07:32,361 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 12:07:32,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,400 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-14 12:07:32,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 12:07:32,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 12:07:32,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 12:07:32,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 12:07:32,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,442 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,442 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,443 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 12:07:32,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 12:07:32,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 12:07:32,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 12:07:32,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (1/1) ... [2023-02-14 12:07:32,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 12:07:32,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:32,506 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) [2023-02-14 12:07:32,527 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 [2023-02-14 12:07:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 12:07:32,566 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-14 12:07:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-14 12:07:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 12:07:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 12:07:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 12:07:32,567 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-14 12:07:32,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-14 12:07:32,633 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 12:07:32,634 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 12:07:32,868 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 12:07:32,911 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 12:07:32,911 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-14 12:07:32,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 12:07:32 BoogieIcfgContainer [2023-02-14 12:07:32,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 12:07:32,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 12:07:32,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 12:07:32,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 12:07:32,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 12:07:32" (1/3) ... [2023-02-14 12:07:32,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9eaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 12:07:32, skipping insertion in model container [2023-02-14 12:07:32,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 12:07:32" (2/3) ... [2023-02-14 12:07:32,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23c9eaa5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 12:07:32, skipping insertion in model container [2023-02-14 12:07:32,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 12:07:32" (3/3) ... [2023-02-14 12:07:32,919 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound5.c [2023-02-14 12:07:32,953 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 12:07:32,954 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-14 12:07:33,022 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 12:07:33,028 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@372ecd7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 12:07:33,028 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-14 12:07:33,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-02-14 12:07:33,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-14 12:07:33,039 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:33,039 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:33,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:33,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:33,049 INFO L85 PathProgramCache]: Analyzing trace with hash 501437177, now seen corresponding path program 1 times [2023-02-14 12:07:33,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:33,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827637036] [2023-02-14 12:07:33,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:33,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:33,248 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:33,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1484622357] [2023-02-14 12:07:33,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:33,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:33,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:33,282 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) [2023-02-14 12:07:33,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 12:07:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:33,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-14 12:07:33,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:33,660 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-14 12:07:33,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:33,867 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-14 12:07:33,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:33,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827637036] [2023-02-14 12:07:33,868 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:33,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484622357] [2023-02-14 12:07:33,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484622357] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-14 12:07:33,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 12:07:33,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-02-14 12:07:33,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822093145] [2023-02-14 12:07:33,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 12:07:33,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 12:07:33,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:33,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 12:07:33,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-14 12:07:33,926 INFO L87 Difference]: Start difference. First operand has 32 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-14 12:07:34,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:34,080 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-02-14 12:07:34,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 12:07:34,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 29 [2023-02-14 12:07:34,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:34,093 INFO L225 Difference]: With dead ends: 79 [2023-02-14 12:07:34,093 INFO L226 Difference]: Without dead ends: 42 [2023-02-14 12:07:34,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2023-02-14 12:07:34,098 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:34,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 145 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 2 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 12:07:34,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-14 12:07:34,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-02-14 12:07:34,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-14 12:07:34,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2023-02-14 12:07:34,171 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 29 [2023-02-14 12:07:34,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:34,171 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2023-02-14 12:07:34,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-14 12:07:34,172 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-02-14 12:07:34,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-14 12:07:34,173 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:34,173 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:34,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 12:07:34,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-14 12:07:34,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:34,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:34,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1017640517, now seen corresponding path program 1 times [2023-02-14 12:07:34,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:34,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426272399] [2023-02-14 12:07:34,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:34,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:34,428 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:34,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [852679593] [2023-02-14 12:07:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:34,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:34,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:34,438 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) [2023-02-14 12:07:34,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 12:07:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:34,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-14 12:07:34,512 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:34,690 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-14 12:07:34,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:34,796 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-14 12:07:34,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:34,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426272399] [2023-02-14 12:07:34,798 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:34,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [852679593] [2023-02-14 12:07:34,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [852679593] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-14 12:07:34,801 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-14 12:07:34,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2023-02-14 12:07:34,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911533432] [2023-02-14 12:07:34,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 12:07:34,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 12:07:34,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:34,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 12:07:34,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2023-02-14 12:07:34,807 INFO L87 Difference]: Start difference. First operand 41 states and 58 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-14 12:07:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:34,901 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2023-02-14 12:07:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-14 12:07:34,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2023-02-14 12:07:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:34,906 INFO L225 Difference]: With dead ends: 66 [2023-02-14 12:07:34,906 INFO L226 Difference]: Without dead ends: 64 [2023-02-14 12:07:34,906 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2023-02-14 12:07:34,908 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:34,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 120 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 12:07:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-02-14 12:07:34,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 57. [2023-02-14 12:07:34,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 31 states have internal predecessors, (38), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-14 12:07:34,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 83 transitions. [2023-02-14 12:07:34,946 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 83 transitions. Word has length 34 [2023-02-14 12:07:34,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:34,947 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 83 transitions. [2023-02-14 12:07:34,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-14 12:07:34,948 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 83 transitions. [2023-02-14 12:07:34,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-14 12:07:34,949 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:34,949 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:34,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-14 12:07:35,154 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,SelfDestructingSolverStorable1 [2023-02-14 12:07:35,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:35,155 INFO L85 PathProgramCache]: Analyzing trace with hash 1133401081, now seen corresponding path program 1 times [2023-02-14 12:07:35,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:35,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196068210] [2023-02-14 12:07:35,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:35,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:35,177 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:35,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [961043832] [2023-02-14 12:07:35,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:35,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:35,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:35,194 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) [2023-02-14 12:07:35,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 12:07:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:35,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-14 12:07:35,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:35,494 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-14 12:07:35,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:35,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:35,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196068210] [2023-02-14 12:07:35,588 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:35,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961043832] [2023-02-14 12:07:35,588 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961043832] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 12:07:35,588 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-14 12:07:35,588 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2023-02-14 12:07:35,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449244893] [2023-02-14 12:07:35,588 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-14 12:07:35,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-14 12:07:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-14 12:07:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-02-14 12:07:35,594 INFO L87 Difference]: Start difference. First operand 57 states and 83 transitions. Second operand has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-14 12:07:35,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:35,845 INFO L93 Difference]: Finished difference Result 64 states and 89 transitions. [2023-02-14 12:07:35,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-14 12:07:35,846 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 39 [2023-02-14 12:07:35,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:35,847 INFO L225 Difference]: With dead ends: 64 [2023-02-14 12:07:35,847 INFO L226 Difference]: Without dead ends: 60 [2023-02-14 12:07:35,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2023-02-14 12:07:35,850 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:35,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 98 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 12:07:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-14 12:07:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2023-02-14 12:07:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 32 states have (on average 1.28125) internal successors, (41), 34 states have internal predecessors, (41), 22 states have call successors, (22), 5 states have call predecessors, (22), 5 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-14 12:07:35,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2023-02-14 12:07:35,887 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 39 [2023-02-14 12:07:35,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:35,888 INFO L495 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2023-02-14 12:07:35,889 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 9 states have internal predecessors, (20), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2023-02-14 12:07:35,889 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2023-02-14 12:07:35,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-14 12:07:35,891 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:35,891 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:35,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 12:07:36,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:36,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:36,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:36,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1954831506, now seen corresponding path program 1 times [2023-02-14 12:07:36,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:36,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17205281] [2023-02-14 12:07:36,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:36,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:36,107 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:36,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184018514] [2023-02-14 12:07:36,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:36,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:36,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:36,111 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 12:07:36,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 12:07:36,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:36,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-14 12:07:36,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:36,270 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 12:07:36,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-14 12:07:36,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17205281] [2023-02-14 12:07:36,271 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:36,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184018514] [2023-02-14 12:07:36,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184018514] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 12:07:36,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 12:07:36,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 12:07:36,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116283173] [2023-02-14 12:07:36,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 12:07:36,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 12:07:36,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:36,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 12:07:36,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-14 12:07:36,274 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-14 12:07:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:36,319 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2023-02-14 12:07:36,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-14 12:07:36,321 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 45 [2023-02-14 12:07:36,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:36,324 INFO L225 Difference]: With dead ends: 66 [2023-02-14 12:07:36,324 INFO L226 Difference]: Without dead ends: 64 [2023-02-14 12:07:36,325 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-14 12:07:36,342 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 5 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:36,343 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 123 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-14 12:07:36,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-02-14 12:07:36,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2023-02-14 12:07:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 37 states have internal predecessors, (44), 22 states have call successors, (22), 6 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-14 12:07:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2023-02-14 12:07:36,359 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 45 [2023-02-14 12:07:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:36,361 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2023-02-14 12:07:36,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2023-02-14 12:07:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2023-02-14 12:07:36,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-14 12:07:36,362 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:36,362 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:36,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 12:07:36,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:36,563 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:36,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:36,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1265228631, now seen corresponding path program 1 times [2023-02-14 12:07:36,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:36,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761511999] [2023-02-14 12:07:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:36,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:36,573 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:36,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [562923206] [2023-02-14 12:07:36,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:36,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:36,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:36,589 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 12:07:36,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 12:07:36,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:36,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-14 12:07:36,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:36,758 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-02-14 12:07:36,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:36,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:36,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761511999] [2023-02-14 12:07:36,853 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:36,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562923206] [2023-02-14 12:07:36,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562923206] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 12:07:36,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-14 12:07:36,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-14 12:07:36,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246895727] [2023-02-14 12:07:36,854 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-14 12:07:36,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-14 12:07:36,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:36,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-14 12:07:36,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-14 12:07:36,855 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-14 12:07:36,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:36,969 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2023-02-14 12:07:36,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-14 12:07:36,969 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2023-02-14 12:07:36,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:36,971 INFO L225 Difference]: With dead ends: 80 [2023-02-14 12:07:36,971 INFO L226 Difference]: Without dead ends: 78 [2023-02-14 12:07:36,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-02-14 12:07:36,984 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 8 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:36,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 149 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 12:07:36,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-14 12:07:37,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2023-02-14 12:07:37,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 41 states have (on average 1.2195121951219512) internal successors, (50), 44 states have internal predecessors, (50), 25 states have call successors, (25), 8 states have call predecessors, (25), 8 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-02-14 12:07:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2023-02-14 12:07:37,005 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 47 [2023-02-14 12:07:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:37,005 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2023-02-14 12:07:37,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-14 12:07:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2023-02-14 12:07:37,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-14 12:07:37,009 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:37,009 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:37,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-14 12:07:37,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:37,210 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:37,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:37,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1617953190, now seen corresponding path program 1 times [2023-02-14 12:07:37,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:37,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174875896] [2023-02-14 12:07:37,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:37,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:37,227 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:37,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [707164180] [2023-02-14 12:07:37,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:37,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:37,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:37,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 12:07:37,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 12:07:37,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:37,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-14 12:07:37,342 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:37,402 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 12:07:37,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:37,547 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 12:07:37,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:37,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174875896] [2023-02-14 12:07:37,548 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:37,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707164180] [2023-02-14 12:07:37,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707164180] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 12:07:37,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 12:07:37,548 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-02-14 12:07:37,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830308914] [2023-02-14 12:07:37,548 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 12:07:37,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-14 12:07:37,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:37,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-14 12:07:37,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-14 12:07:37,551 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-14 12:07:37,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:37,691 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions. [2023-02-14 12:07:37,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-14 12:07:37,692 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 50 [2023-02-14 12:07:37,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:37,693 INFO L225 Difference]: With dead ends: 84 [2023-02-14 12:07:37,693 INFO L226 Difference]: Without dead ends: 80 [2023-02-14 12:07:37,693 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-02-14 12:07:37,694 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:37,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 106 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 12:07:37,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-14 12:07:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-02-14 12:07:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 48 states have internal predecessors, (52), 25 states have call successors, (25), 9 states have call predecessors, (25), 9 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2023-02-14 12:07:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-02-14 12:07:37,724 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 50 [2023-02-14 12:07:37,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:37,727 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-02-14 12:07:37,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 5 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-14 12:07:37,727 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-02-14 12:07:37,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-14 12:07:37,728 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:37,728 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:37,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-02-14 12:07:37,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:37,933 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:37,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:37,934 INFO L85 PathProgramCache]: Analyzing trace with hash 860577929, now seen corresponding path program 1 times [2023-02-14 12:07:37,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:37,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149204817] [2023-02-14 12:07:37,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:37,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:37,950 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:37,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054281078] [2023-02-14 12:07:37,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:37,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:37,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:37,969 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 12:07:38,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 12:07:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:38,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-14 12:07:38,044 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:38,311 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 14 proven. 9 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-14 12:07:38,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:38,437 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-02-14 12:07:38,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:38,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149204817] [2023-02-14 12:07:38,437 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:38,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054281078] [2023-02-14 12:07:38,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054281078] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 12:07:38,449 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 12:07:38,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2023-02-14 12:07:38,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276232528] [2023-02-14 12:07:38,449 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 12:07:38,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-14 12:07:38,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:38,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-14 12:07:38,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-02-14 12:07:38,451 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 14 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-14 12:07:39,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:39,369 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2023-02-14 12:07:39,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 12:07:39,380 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) Word has length 52 [2023-02-14 12:07:39,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:39,380 INFO L225 Difference]: With dead ends: 106 [2023-02-14 12:07:39,380 INFO L226 Difference]: Without dead ends: 99 [2023-02-14 12:07:39,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2023-02-14 12:07:39,381 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 28 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:39,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 143 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-14 12:07:39,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-14 12:07:39,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2023-02-14 12:07:39,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 51 states have (on average 1.1176470588235294) internal successors, (57), 53 states have internal predecessors, (57), 21 states have call successors, (21), 11 states have call predecessors, (21), 11 states have return successors, (20), 19 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-14 12:07:39,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2023-02-14 12:07:39,399 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 52 [2023-02-14 12:07:39,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:39,399 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2023-02-14 12:07:39,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0) internal successors, (28), 11 states have internal predecessors, (28), 6 states have call successors, (17), 3 states have call predecessors, (17), 2 states have return successors, (16), 7 states have call predecessors, (16), 6 states have call successors, (16) [2023-02-14 12:07:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2023-02-14 12:07:39,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-14 12:07:39,401 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 12:07:39,402 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:07:39,419 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-14 12:07:39,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:39,606 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-14 12:07:39,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 12:07:39,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1236716699, now seen corresponding path program 1 times [2023-02-14 12:07:39,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 12:07:39,607 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058859927] [2023-02-14 12:07:39,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:39,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 12:07:39,620 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-14 12:07:39,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417516618] [2023-02-14 12:07:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 12:07:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 12:07:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 12:07:39,641 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-14 12:07:39,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-14 12:07:39,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 12:07:39,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-14 12:07:39,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 12:07:39,967 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-14 12:07:39,968 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 12:07:40,170 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-14 12:07:40,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 12:07:40,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058859927] [2023-02-14 12:07:40,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-14 12:07:40,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417516618] [2023-02-14 12:07:40,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417516618] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 12:07:40,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-14 12:07:40,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-02-14 12:07:40,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98099071] [2023-02-14 12:07:40,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-14 12:07:40,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-14 12:07:40,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 12:07:40,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-14 12:07:40,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-02-14 12:07:40,189 INFO L87 Difference]: Start difference. First operand 84 states and 98 transitions. Second operand has 15 states, 15 states have (on average 2.2) internal successors, (33), 12 states have internal predecessors, (33), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-02-14 12:07:40,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 12:07:40,740 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2023-02-14 12:07:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-14 12:07:40,740 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 12 states have internal predecessors, (33), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 65 [2023-02-14 12:07:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 12:07:40,741 INFO L225 Difference]: With dead ends: 99 [2023-02-14 12:07:40,741 INFO L226 Difference]: Without dead ends: 0 [2023-02-14 12:07:40,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2023-02-14 12:07:40,742 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 12:07:40,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 209 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 287 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-14 12:07:40,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-14 12:07:40,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-14 12:07:40,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2023-02-14 12:07:40,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-14 12:07:40,742 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-02-14 12:07:40,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 12:07:40,743 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-14 12:07:40,743 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2) internal successors, (33), 12 states have internal predecessors, (33), 8 states have call successors, (19), 3 states have call predecessors, (19), 2 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2023-02-14 12:07:40,743 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-14 12:07:40,743 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-14 12:07:40,745 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-14 12:07:40,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-14 12:07:40,952 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-14 12:07:40,954 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-14 12:07:51,955 WARN L233 SmtUtils]: Spent 10.89s on a formula simplification. DAG size of input: 59 DAG size of output: 35 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-02-14 12:08:01,839 WARN L233 SmtUtils]: Spent 8.23s on a formula simplification. DAG size of input: 56 DAG size of output: 34 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-02-14 12:08:15,625 WARN L233 SmtUtils]: Spent 13.76s on a formula simplification. DAG size of input: 59 DAG size of output: 35 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2023-02-14 12:08:16,025 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse5 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse6 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= (+ .cse5 .cse6) |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 (forall ((|ULTIMATE.start_main_~r~0#1| Int)) (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1))) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse5 |ULTIMATE.start_main_~b~0#1| .cse6) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) .cse2 .cse3 .cse4)))) [2023-02-14 12:08:16,025 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-14 12:08:16,025 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 1 |ULTIMATE.start_main_~x~0#1|)) [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (<= 1 |ULTIMATE.start_main_~x~0#1|))) (or (and .cse0 (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) (= |ULTIMATE.start_main_~q~0#1| 0) .cse1 (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse2 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse3 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and .cse0 (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse2 |ULTIMATE.start_main_~b~0#1| .cse3) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) .cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (= (+ .cse2 .cse3) |ULTIMATE.start_main_~a~0#1|))))) [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse5 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse6 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= (+ .cse5 .cse6) |ULTIMATE.start_main_~a~0#1|))) (or (and .cse0 (forall ((|ULTIMATE.start_main_~r~0#1| Int)) (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1))) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 .cse3 .cse4 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse5 |ULTIMATE.start_main_~b~0#1| .cse6) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) .cse2 .cse3 .cse4)))) [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 59) the Hoare annotation is: true [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (<= |ULTIMATE.start_main_~x~0#1| 5) (= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse0 |ULTIMATE.start_main_~b~0#1| .cse1) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (+ .cse0 .cse1) |ULTIMATE.start_main_~a~0#1|))) [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (<= |ULTIMATE.start_main_~x~0#1| 5) (= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse0 |ULTIMATE.start_main_~b~0#1| .cse1) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (+ .cse0 .cse1) |ULTIMATE.start_main_~a~0#1|))) [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 0 |ULTIMATE.start_main_~x~0#1|)) [2023-02-14 12:08:16,026 INFO L895 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~x~0#1| 5) (<= 0 |ULTIMATE.start_main_~x~0#1|)) [2023-02-14 12:08:16,027 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_main_~x~0#1| 5)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse2 (<= 1 |ULTIMATE.start_main_~x~0#1|))) (or (and .cse0 (forall ((|ULTIMATE.start_main_~r~0#1| Int)) (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1))) (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse2 (= |ULTIMATE.start_main_~s~0#1| 1)) (let ((.cse3 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse4 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and .cse0 (= .cse1 (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse3 |ULTIMATE.start_main_~b~0#1| .cse4) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) .cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|) (= (+ .cse3 .cse4) |ULTIMATE.start_main_~a~0#1|))))) [2023-02-14 12:08:16,027 INFO L902 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 51) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (<= |ULTIMATE.start_main_~x~0#1| 5) (= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse0 |ULTIMATE.start_main_~b~0#1| .cse1) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (+ .cse0 .cse1) |ULTIMATE.start_main_~a~0#1|))) [2023-02-14 12:08:16,027 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse0 (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse1 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~x~0#1|))) (and (<= |ULTIMATE.start_main_~x~0#1| 5) (= (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|) (+ (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~r~0#1|) 1)) (<= 1 |ULTIMATE.start_main_~y~0#1|) (= (+ .cse0 |ULTIMATE.start_main_~b~0#1| .cse1) (+ |ULTIMATE.start_main_~a~0#1| (* |ULTIMATE.start_main_~s~0#1| |ULTIMATE.start_main_~y~0#1|) (* |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~x~0#1|))) (<= 1 |ULTIMATE.start_main_~x~0#1|) (= (+ .cse0 .cse1) |ULTIMATE.start_main_~a~0#1|))) [2023-02-14 12:08:16,027 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-02-14 12:08:16,027 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-02-14 12:08:16,029 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 12:08:16,030 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-14 12:08:16,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.02 12:08:16 BoogieIcfgContainer [2023-02-14 12:08:16,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-14 12:08:16,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-14 12:08:16,068 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-14 12:08:16,068 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-14 12:08:16,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 12:07:32" (3/4) ... [2023-02-14 12:08:16,070 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-14 12:08:16,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-14 12:08:16,080 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-14 12:08:16,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-14 12:08:16,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-14 12:08:16,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-14 12:08:16,083 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-14 12:08:16,136 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-14 12:08:16,136 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-14 12:08:16,137 INFO L158 Benchmark]: Toolchain (without parser) took 44107.50ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 98.2MB in the beginning and 98.6MB in the end (delta: -396.1kB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,137 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory was 111.4MB in the beginning and 111.3MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 12:08:16,137 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.48ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 87.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,137 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.07ms. Allocated memory is still 136.3MB. Free memory was 87.1MB in the beginning and 85.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-14 12:08:16,138 INFO L158 Benchmark]: Boogie Preprocessor took 42.81ms. Allocated memory is still 136.3MB. Free memory was 85.6MB in the beginning and 84.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,138 INFO L158 Benchmark]: RCFGBuilder took 468.99ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 73.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,138 INFO L158 Benchmark]: TraceAbstraction took 43152.24ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 72.5MB in the beginning and 101.7MB in the end (delta: -29.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,138 INFO L158 Benchmark]: Witness Printer took 68.96ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 98.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-14 12:08:16,139 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 136.3MB. Free memory was 111.4MB in the beginning and 111.3MB in the end (delta: 24.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.48ms. Allocated memory is still 136.3MB. Free memory was 97.6MB in the beginning and 87.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.07ms. Allocated memory is still 136.3MB. Free memory was 87.1MB in the beginning and 85.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 42.81ms. Allocated memory is still 136.3MB. Free memory was 85.6MB in the beginning and 84.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 468.99ms. Allocated memory is still 136.3MB. Free memory was 84.5MB in the beginning and 73.0MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 43152.24ms. Allocated memory was 136.3MB in the beginning and 167.8MB in the end (delta: 31.5MB). Free memory was 72.5MB in the beginning and 101.7MB in the end (delta: -29.3MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 68.96ms. Allocated memory is still 167.8MB. Free memory was 101.7MB in the beginning and 98.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 13]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 32 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 43.0s, OverallIterations: 8, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 35.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 162 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 130 mSDsluCounter, 1093 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 816 mSDsCounter, 114 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1233 IncrementalHoareTripleChecker+Invalid, 1349 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 114 mSolverCounterUnsat, 277 mSDtfsCounter, 1233 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 616 GetRequests, 517 SyntacticMatches, 3 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=7, InterpolantAutomatonStates: 67, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 26 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 62 PreInvPairs, 109 NumberOfFragments, 501 HoareAnnotationTreeSize, 62 FomulaSimplifications, 202 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 3264 FormulaSimplificationTreeSizeReductionInter, 35.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 361 NumberOfCodeBlocks, 361 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 578 ConstructedInterpolants, 2 QuantifiedInterpolants, 1897 SizeOfPredicates, 33 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 594/660 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((x <= 5 && p * s == q * r + 1) && 1 <= y) && r * y + b + p * x == a + s * y + q * x) && 1 <= x) && r * y + p * x == a RESULT: Ultimate proved your program to be correct! [2023-02-14 12:08:16,183 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE