./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e 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_valuebound20.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 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 17:13:48,723 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 17:13:48,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 17:13:48,755 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 17:13:48,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 17:13:48,757 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 17:13:48,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 17:13:48,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 17:13:48,761 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 17:13:48,765 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 17:13:48,766 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 17:13:48,767 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 17:13:48,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 17:13:48,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 17:13:48,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 17:13:48,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 17:13:48,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 17:13:48,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 17:13:48,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 17:13:48,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 17:13:48,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 17:13:48,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 17:13:48,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 17:13:48,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 17:13:48,786 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 17:13:48,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 17:13:48,786 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 17:13:48,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 17:13:48,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 17:13:48,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 17:13:48,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 17:13:48,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 17:13:48,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 17:13:48,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 17:13:48,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 17:13:48,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 17:13:48,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 17:13:48,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 17:13:48,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 17:13:48,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 17:13:48,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 17:13:48,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 17:13:48,820 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 17:13:48,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 17:13:48,820 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 17:13:48,820 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 17:13:48,821 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 17:13:48,821 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 17:13:48,821 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 17:13:48,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 17:13:48,822 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 17:13:48,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 17:13:48,822 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 17:13:48,823 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 17:13:48,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 17:13:48,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:13:48,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 17:13:48,825 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 17:13:48,826 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 17:13:48,826 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 17:13:48,826 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20f9ce6814caacb533e5bf2143ac3e067387f11238548a0b9b41e2de8e2cc436 [2023-02-18 17:13:49,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 17:13:49,139 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 17:13:49,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 17:13:49,141 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 17:13:49,141 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 17:13:49,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2023-02-18 17:13:50,117 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 17:13:50,266 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 17:13:50,267 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound20.c [2023-02-18 17:13:50,271 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95190ceab/e833ebe345814329b206e05dfb115492/FLAGcc6aba7bf [2023-02-18 17:13:50,280 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95190ceab/e833ebe345814329b206e05dfb115492 [2023-02-18 17:13:50,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 17:13:50,282 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 17:13:50,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 17:13:50,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 17:13:50,285 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 17:13:50,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,286 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49930943 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50, skipping insertion in model container [2023-02-18 17:13:50,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 17:13:50,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 17:13:50,378 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_valuebound20.c[489,502] [2023-02-18 17:13:50,388 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:13:50,393 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 17:13:50,400 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_valuebound20.c[489,502] [2023-02-18 17:13:50,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:13:50,413 INFO L208 MainTranslator]: Completed translation [2023-02-18 17:13:50,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50 WrapperNode [2023-02-18 17:13:50,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 17:13:50,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 17:13:50,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 17:13:50,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 17:13:50,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,434 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-18 17:13:50,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 17:13:50,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 17:13:50,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 17:13:50,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 17:13:50,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,443 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,446 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,446 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 17:13:50,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 17:13:50,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 17:13:50,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 17:13:50,448 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (1/1) ... [2023-02-18 17:13:50,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:13:50,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:50,487 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) [2023-02-18 17:13:50,500 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 [2023-02-18 17:13:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 17:13:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 17:13:50,553 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 17:13:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 17:13:50,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 17:13:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 17:13:50,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 17:13:50,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 17:13:50,597 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 17:13:50,599 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 17:13:50,735 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 17:13:50,738 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 17:13:50,739 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 17:13:50,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:50 BoogieIcfgContainer [2023-02-18 17:13:50,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 17:13:50,741 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 17:13:50,741 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 17:13:50,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 17:13:50,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 05:13:50" (1/3) ... [2023-02-18 17:13:50,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94d22eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:13:50, skipping insertion in model container [2023-02-18 17:13:50,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:13:50" (2/3) ... [2023-02-18 17:13:50,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94d22eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:13:50, skipping insertion in model container [2023-02-18 17:13:50,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:50" (3/3) ... [2023-02-18 17:13:50,745 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound20.c [2023-02-18 17:13:50,756 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 17:13:50,756 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 17:13:50,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 17:13:50,787 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;@3da76db7, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 17:13:50,787 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 17:13:50,789 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) [2023-02-18 17:13:50,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 17:13:50,794 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:50,794 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] [2023-02-18 17:13:50,795 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:50,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:50,798 INFO L85 PathProgramCache]: Analyzing trace with hash 501437177, now seen corresponding path program 1 times [2023-02-18 17:13:50,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:50,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249153881] [2023-02-18 17:13:50,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:50,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:50,885 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:50,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1799438185] [2023-02-18 17:13:50,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:50,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:50,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:50,900 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) [2023-02-18 17:13:50,902 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 17:13:50,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:50,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 17:13:50,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:51,054 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-18 17:13:51,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-18 17:13:51,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:51,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249153881] [2023-02-18 17:13:51,125 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:51,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799438185] [2023-02-18 17:13:51,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799438185] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:51,126 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:51,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-02-18 17:13:51,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813009115] [2023-02-18 17:13:51,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:51,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:51,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:51,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:13:51,150 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) [2023-02-18 17:13:51,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:51,260 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-02-18 17:13:51,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:13:51,262 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 [2023-02-18 17:13:51,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:51,267 INFO L225 Difference]: With dead ends: 79 [2023-02-18 17:13:51,272 INFO L226 Difference]: Without dead ends: 42 [2023-02-18 17:13:51,275 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 [2023-02-18 17:13:51,277 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:51,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 145 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 1 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:51,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-18 17:13:51,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2023-02-18 17:13:51,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 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) [2023-02-18 17:13:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 56 transitions. [2023-02-18 17:13:51,348 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 56 transitions. Word has length 29 [2023-02-18 17:13:51,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:51,349 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 56 transitions. [2023-02-18 17:13:51,349 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) [2023-02-18 17:13:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 56 transitions. [2023-02-18 17:13:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 17:13:51,350 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:51,350 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] [2023-02-18 17:13:51,370 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 17:13:51,555 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 [2023-02-18 17:13:51,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:51,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:51,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1017640517, now seen corresponding path program 1 times [2023-02-18 17:13:51,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:51,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878469033] [2023-02-18 17:13:51,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:51,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:51,570 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:51,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1208306504] [2023-02-18 17:13:51,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:51,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:51,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:51,582 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) [2023-02-18 17:13:51,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 17:13:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:51,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 17:13:51,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:51,701 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-18 17:13:51,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:51,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:51,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878469033] [2023-02-18 17:13:51,777 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:51,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208306504] [2023-02-18 17:13:51,780 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208306504] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:51,781 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:51,781 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:13:51,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061801580] [2023-02-18 17:13:51,781 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:51,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:13:51,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:51,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:13:51,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:13:51,786 INFO L87 Difference]: Start difference. First operand 40 states and 56 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 17:13:51,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:51,940 INFO L93 Difference]: Finished difference Result 56 states and 79 transitions. [2023-02-18 17:13:51,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:13:51,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 34 [2023-02-18 17:13:51,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:51,943 INFO L225 Difference]: With dead ends: 56 [2023-02-18 17:13:51,944 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 17:13:51,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:13:51,946 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 12 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:51,948 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 112 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 17:13:51,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 50. [2023-02-18 17:13:51,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 25 states have (on average 1.24) internal successors, (31), 27 states have internal predecessors, (31), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2023-02-18 17:13:51,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 70 transitions. [2023-02-18 17:13:51,966 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 70 transitions. Word has length 34 [2023-02-18 17:13:51,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:51,967 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 70 transitions. [2023-02-18 17:13:51,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-02-18 17:13:51,967 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 70 transitions. [2023-02-18 17:13:51,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 17:13:51,968 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:51,968 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] [2023-02-18 17:13:51,974 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 17:13:52,168 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 [2023-02-18 17:13:52,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:52,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:52,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1133401081, now seen corresponding path program 1 times [2023-02-18 17:13:52,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:52,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422597729] [2023-02-18 17:13:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:52,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:52,182 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:52,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [334025233] [2023-02-18 17:13:52,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:52,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:52,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:52,206 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) [2023-02-18 17:13:52,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 17:13:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:52,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-18 17:13:52,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:52,358 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 9 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-02-18 17:13:52,358 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-18 17:13:52,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:52,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422597729] [2023-02-18 17:13:52,388 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:52,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334025233] [2023-02-18 17:13:52,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334025233] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:52,389 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:52,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2023-02-18 17:13:52,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313571155] [2023-02-18 17:13:52,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:52,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:52,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:52,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:52,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-18 17:13:52,391 INFO L87 Difference]: Start difference. First operand 50 states and 70 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 17:13:52,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:52,443 INFO L93 Difference]: Finished difference Result 67 states and 95 transitions. [2023-02-18 17:13:52,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:13:52,444 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-02-18 17:13:52,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:52,449 INFO L225 Difference]: With dead ends: 67 [2023-02-18 17:13:52,449 INFO L226 Difference]: Without dead ends: 63 [2023-02-18 17:13:52,449 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:13:52,452 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:52,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 120 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:13:52,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-02-18 17:13:52,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-02-18 17:13:52,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 32 states have (on average 1.28125) internal successors, (41), 35 states have internal predecessors, (41), 25 states have call successors, (25), 5 states have call predecessors, (25), 5 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-18 17:13:52,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 88 transitions. [2023-02-18 17:13:52,472 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 88 transitions. Word has length 39 [2023-02-18 17:13:52,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:52,472 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 88 transitions. [2023-02-18 17:13:52,473 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 17:13:52,473 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 88 transitions. [2023-02-18 17:13:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 17:13:52,474 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:52,474 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] [2023-02-18 17:13:52,491 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:52,678 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 [2023-02-18 17:13:52,679 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:52,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:52,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1954831506, now seen corresponding path program 1 times [2023-02-18 17:13:52,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:52,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659049403] [2023-02-18 17:13:52,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:52,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:52,704 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:52,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [65851516] [2023-02-18 17:13:52,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:52,704 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:52,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:52,721 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) [2023-02-18 17:13:52,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 17:13:52,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:52,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 17:13:52,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:52,772 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:52,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:13:52,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:52,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659049403] [2023-02-18 17:13:52,773 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:52,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65851516] [2023-02-18 17:13:52,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65851516] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:13:52,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:13:52,774 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 17:13:52,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520733577] [2023-02-18 17:13:52,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:13:52,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:13:52,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:52,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:13:52,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 17:13:52,775 INFO L87 Difference]: Start difference. First operand 63 states and 88 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) [2023-02-18 17:13:52,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:52,812 INFO L93 Difference]: Finished difference Result 69 states and 93 transitions. [2023-02-18 17:13:52,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 17:13:52,813 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 [2023-02-18 17:13:52,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:52,814 INFO L225 Difference]: With dead ends: 69 [2023-02-18 17:13:52,814 INFO L226 Difference]: Without dead ends: 67 [2023-02-18 17:13:52,814 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 [2023-02-18 17:13:52,815 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 [2023-02-18 17:13:52,815 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] [2023-02-18 17:13:52,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2023-02-18 17:13:52,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2023-02-18 17:13:52,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 38 states have internal predecessors, (44), 25 states have call successors, (25), 6 states have call predecessors, (25), 6 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-02-18 17:13:52,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 91 transitions. [2023-02-18 17:13:52,823 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 91 transitions. Word has length 45 [2023-02-18 17:13:52,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:52,823 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 91 transitions. [2023-02-18 17:13:52,823 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) [2023-02-18 17:13:52,823 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 91 transitions. [2023-02-18 17:13:52,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 17:13:52,824 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:52,824 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] [2023-02-18 17:13:52,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:53,029 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 [2023-02-18 17:13:53,029 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:53,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:53,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1322486933, now seen corresponding path program 1 times [2023-02-18 17:13:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:53,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64256089] [2023-02-18 17:13:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:53,042 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:53,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1819707665] [2023-02-18 17:13:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:53,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:53,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:53,049 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) [2023-02-18 17:13:53,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 17:13:53,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:53,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 17:13:53,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-18 17:13:53,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:53,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:53,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64256089] [2023-02-18 17:13:53,171 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:53,171 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1819707665] [2023-02-18 17:13:53,171 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1819707665] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:53,171 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:53,171 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:13:53,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365894360] [2023-02-18 17:13:53,172 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:53,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:13:53,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:53,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:13:53,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-18 17:13:53,173 INFO L87 Difference]: Start difference. First operand 67 states and 91 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) [2023-02-18 17:13:53,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:53,241 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2023-02-18 17:13:53,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:13:53,241 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 [2023-02-18 17:13:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:53,242 INFO L225 Difference]: With dead ends: 73 [2023-02-18 17:13:53,242 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 17:13:53,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-02-18 17:13:53,243 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 12 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:53,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 127 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:53,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 17:13:53,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2023-02-18 17:13:53,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 38 states have (on average 1.236842105263158) internal successors, (47), 40 states have internal predecessors, (47), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2023-02-18 17:13:53,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 89 transitions. [2023-02-18 17:13:53,251 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 89 transitions. Word has length 47 [2023-02-18 17:13:53,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:53,251 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 89 transitions. [2023-02-18 17:13:53,252 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) [2023-02-18 17:13:53,252 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 89 transitions. [2023-02-18 17:13:53,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 17:13:53,253 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:53,253 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] [2023-02-18 17:13:53,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-18 17:13:53,458 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 [2023-02-18 17:13:53,458 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:53,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:53,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1265228631, now seen corresponding path program 1 times [2023-02-18 17:13:53,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:53,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614986225] [2023-02-18 17:13:53,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:53,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:53,471 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:53,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [340880823] [2023-02-18 17:13:53,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:53,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:53,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:53,472 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) [2023-02-18 17:13:53,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 17:13:53,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:53,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 17:13:53,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:53,534 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-18 17:13:53,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:54,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:54,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614986225] [2023-02-18 17:13:54,065 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:54,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340880823] [2023-02-18 17:13:54,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [340880823] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:13:54,065 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:13:54,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:13:54,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370975422] [2023-02-18 17:13:54,065 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:54,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:13:54,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:54,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:13:54,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=67, Unknown=1, NotChecked=0, Total=90 [2023-02-18 17:13:54,066 INFO L87 Difference]: Start difference. First operand 68 states and 89 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) [2023-02-18 17:13:54,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:54,145 INFO L93 Difference]: Finished difference Result 80 states and 104 transitions. [2023-02-18 17:13:54,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:13:54,145 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 [2023-02-18 17:13:54,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:54,146 INFO L225 Difference]: With dead ends: 80 [2023-02-18 17:13:54,146 INFO L226 Difference]: Without dead ends: 78 [2023-02-18 17:13:54,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=96, Unknown=1, NotChecked=0, Total=132 [2023-02-18 17:13:54,147 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 13 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:54,147 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 105 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:54,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-02-18 17:13:54,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2023-02-18 17:13:54,153 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) [2023-02-18 17:13:54,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2023-02-18 17:13:54,154 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 47 [2023-02-18 17:13:54,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:54,154 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2023-02-18 17:13:54,154 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) [2023-02-18 17:13:54,154 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2023-02-18 17:13:54,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 17:13:54,155 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:54,155 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] [2023-02-18 17:13:54,175 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:54,360 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 [2023-02-18 17:13:54,360 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:54,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:54,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1617953190, now seen corresponding path program 1 times [2023-02-18 17:13:54,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:54,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096659200] [2023-02-18 17:13:54,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:54,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:54,384 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:54,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1915374590] [2023-02-18 17:13:54,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:54,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:54,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:54,401 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) [2023-02-18 17:13:54,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 17:13:54,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:54,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 17:13:54,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:54,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 15 proven. 5 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 17:13:54,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:54,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096659200] [2023-02-18 17:13:54,559 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:54,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915374590] [2023-02-18 17:13:54,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915374590] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:54,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:54,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-02-18 17:13:54,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142692470] [2023-02-18 17:13:54,560 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:54,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:13:54,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:54,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:13:54,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:13:54,561 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) [2023-02-18 17:13:54,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:54,652 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions. [2023-02-18 17:13:54,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 17:13:54,652 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 [2023-02-18 17:13:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:54,653 INFO L225 Difference]: With dead ends: 84 [2023-02-18 17:13:54,653 INFO L226 Difference]: Without dead ends: 80 [2023-02-18 17:13:54,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:13:54,654 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:54,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 138 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:13:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-18 17:13:54,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-02-18 17:13:54,661 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) [2023-02-18 17:13:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-02-18 17:13:54,662 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 50 [2023-02-18 17:13:54,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:54,662 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-02-18 17:13:54,662 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) [2023-02-18 17:13:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-02-18 17:13:54,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 17:13:54,663 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:54,663 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] [2023-02-18 17:13:54,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:54,868 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 [2023-02-18 17:13:54,868 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:54,869 INFO L85 PathProgramCache]: Analyzing trace with hash 860577929, now seen corresponding path program 2 times [2023-02-18 17:13:54,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:54,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745556371] [2023-02-18 17:13:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:54,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:54,876 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:54,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [687531738] [2023-02-18 17:13:54,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:13:54,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:54,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:54,878 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) [2023-02-18 17:13:54,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 17:13:54,928 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 17:13:54,928 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:13:54,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-18 17:13:54,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:54,964 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 13 proven. 7 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-02-18 17:13:54,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2023-02-18 17:13:55,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:55,022 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745556371] [2023-02-18 17:13:55,022 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687531738] [2023-02-18 17:13:55,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687531738] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:55,023 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:55,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14 [2023-02-18 17:13:55,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358361956] [2023-02-18 17:13:55,023 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:55,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 17:13:55,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:55,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 17:13:55,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:13:55,025 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-18 17:13:55,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:55,485 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2023-02-18 17:13:55,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 17:13:55,486 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-02-18 17:13:55,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:55,487 INFO L225 Difference]: With dead ends: 106 [2023-02-18 17:13:55,487 INFO L226 Difference]: Without dead ends: 99 [2023-02-18 17:13:55,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-02-18 17:13:55,487 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 27 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:55,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 126 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 17:13:55,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-18 17:13:55,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2023-02-18 17:13:55,501 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) [2023-02-18 17:13:55,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2023-02-18 17:13:55,502 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 52 [2023-02-18 17:13:55,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:55,502 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2023-02-18 17:13:55,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.0714285714285716) internal successors, (29), 13 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 7 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-18 17:13:55,503 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2023-02-18 17:13:55,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-18 17:13:55,504 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:13:55,504 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] [2023-02-18 17:13:55,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:55,709 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 [2023-02-18 17:13:55,710 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:13:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:13:55,710 INFO L85 PathProgramCache]: Analyzing trace with hash 1236716699, now seen corresponding path program 1 times [2023-02-18 17:13:55,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:13:55,710 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1699027207] [2023-02-18 17:13:55,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:55,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:13:55,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:13:55,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288180106] [2023-02-18 17:13:55,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:13:55,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:55,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:13:55,732 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 17:13:55,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 17:13:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:13:55,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 17:13:55,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:13:55,839 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 18 proven. 13 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-02-18 17:13:55,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:13:55,962 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 16 proven. 6 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-02-18 17:13:55,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:13:55,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1699027207] [2023-02-18 17:13:55,963 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:13:55,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288180106] [2023-02-18 17:13:55,963 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288180106] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:13:55,963 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:13:55,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-02-18 17:13:55,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785632173] [2023-02-18 17:13:55,963 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:13:55,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-18 17:13:55,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:13:55,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-18 17:13:55,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-02-18 17:13:55,965 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) [2023-02-18 17:13:56,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:13:56,404 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2023-02-18 17:13:56,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 17:13:56,404 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 [2023-02-18 17:13:56,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:13:56,405 INFO L225 Difference]: With dead ends: 99 [2023-02-18 17:13:56,405 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 17:13:56,406 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2023-02-18 17:13:56,406 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 30 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 17:13:56,406 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 237 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 17:13:56,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 17:13:56,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 17:13:56,407 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) [2023-02-18 17:13:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 17:13:56,407 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-02-18 17:13:56,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:13:56,407 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 17:13:56,407 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) [2023-02-18 17:13:56,407 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 17:13:56,407 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 17:13:56,409 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 17:13:56,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 17:13:56,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:13:56,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 17:13:56,632 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse9 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse11 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse0 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse11))))) (.cse10 (= .cse9 1))) (let ((.cse6 (or (and .cse0 .cse1 .cse4) (let ((.cse16 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1))) (let ((.cse17 (+ (* |ULTIMATE.start_main_~x~0#1| .cse16) (* |ULTIMATE.start_main_~y~0#1| .cse9)))) (and (= .cse16 0) .cse0 .cse1 .cse4 .cse10 (= (+ |ULTIMATE.start_main_~a~0#1| .cse17) |ULTIMATE.start_main_~x~0#1|) (>= .cse17 |ULTIMATE.start_main_~y~0#1|)))))) (.cse8 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse7 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse8) (and .cse6 (= |ULTIMATE.start_main_~s~0#1| (+ .cse9 (- |ULTIMATE.start_main_~r~0#1|))) .cse8 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse10 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse11 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse1 (let ((.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (let ((.cse12 (and .cse1 .cse2 .cse14 .cse15 .cse5)) (.cse13 (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse1 .cse3 .cse14 .cse15 .cse5))) (or .cse12 .cse13 (and .cse2 (or .cse12 .cse13) .cse3 .cse5))))))))) [2023-02-18 17:13:56,635 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 17:13:56,635 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (>= |ULTIMATE.start_main_~x~0#1| 1) [2023-02-18 17:13:56,635 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|))) (let ((.cse1 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse3 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| (- |ULTIMATE.start_main_~q~0#1|)))))) (.cse5 (or .cse2 (and .cse2 (= |ULTIMATE.start_main_~p~0#1| 1) (= |ULTIMATE.start_main_~r~0#1| 0) (= |ULTIMATE.start_main_~s~0#1| 1))))) (or (let ((.cse0 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse4 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse6 (+ (* |ULTIMATE.start_main_~x~0#1| .cse0) (* |ULTIMATE.start_main_~y~0#1| .cse4)))) (and (= .cse0 0) .cse1 .cse2 .cse3 (= .cse4 1) .cse5 (= (+ |ULTIMATE.start_main_~a~0#1| .cse6) |ULTIMATE.start_main_~x~0#1|) (>= .cse6 |ULTIMATE.start_main_~y~0#1|)))) (and .cse1 .cse2 .cse3 .cse5) (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))))) [2023-02-18 17:13:56,636 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse9 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse11 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse0 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse11))))) (.cse10 (= .cse9 1))) (let ((.cse6 (or (and .cse0 .cse1 .cse4) (let ((.cse16 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1))) (let ((.cse17 (+ (* |ULTIMATE.start_main_~x~0#1| .cse16) (* |ULTIMATE.start_main_~y~0#1| .cse9)))) (and (= .cse16 0) .cse0 .cse1 .cse4 .cse10 (= (+ |ULTIMATE.start_main_~a~0#1| .cse17) |ULTIMATE.start_main_~x~0#1|) (>= .cse17 |ULTIMATE.start_main_~y~0#1|)))))) (.cse8 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse7 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse6 (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse8) (and .cse6 (= |ULTIMATE.start_main_~s~0#1| (+ .cse9 (- |ULTIMATE.start_main_~r~0#1|))) .cse8 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse10 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse11 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse1 (let ((.cse14 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|))))) (let ((.cse12 (and .cse1 .cse2 .cse14 .cse15 .cse5)) (.cse13 (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse1 .cse3 .cse14 .cse15 .cse5))) (or .cse12 .cse13 (and .cse2 (or .cse12 .cse13) .cse3 .cse5))))))))) [2023-02-18 17:13:56,636 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 17:13:56,636 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 59) the Hoare annotation is: true [2023-02-18 17:13:56,636 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2023-02-18 17:13:56,637 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse5 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse19 (+ (* |ULTIMATE.start_main_~x~0#1| .cse20) (* |ULTIMATE.start_main_~y~0#1| .cse5))) (.cse7 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse14 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse12 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (= .cse20 0)) (.cse3 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse4 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse7))))) (.cse6 (= .cse5 1)) (.cse17 (= (+ |ULTIMATE.start_main_~a~0#1| .cse19) |ULTIMATE.start_main_~x~0#1|)) (.cse18 (>= .cse19 |ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (or (and .cse3 .cse4) (and .cse16 .cse3 .cse4 .cse6 .cse17 .cse18))) (.cse8 (or (and .cse16 .cse12 .cse9 .cse15 .cse4 .cse10 .cse6 .cse17 .cse18) (and .cse3 .cse12 .cse9 .cse15 .cse4 .cse10))) (.cse0 (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse11 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2 .cse4) (and .cse1 (= |ULTIMATE.start_main_~s~0#1| (+ .cse5 (- |ULTIMATE.start_main_~r~0#1|))) .cse2 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse6 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse7 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse8 .cse0 .cse2) (and .cse8 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse7)) (= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~s~0#1|) 0) (<= (+ |ULTIMATE.start_main_~b~0#1| 1) (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) .cse2 .cse9 .cse10) (and .cse0 .cse11 .cse3 .cse12 .cse2 .cse13 .cse4 .cse10) (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse11 .cse3 .cse12 .cse2 .cse13 .cse9 .cse15 .cse10 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))))))) [2023-02-18 17:13:56,637 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse3 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse19 (+ (* |ULTIMATE.start_main_~x~0#1| .cse20) (* |ULTIMATE.start_main_~y~0#1| .cse3))) (.cse5 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse10 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse12 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse14 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse16 (= .cse20 0)) (.cse6 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse7 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse5))))) (.cse4 (= .cse3 1)) (.cse17 (= (+ |ULTIMATE.start_main_~a~0#1| .cse19) |ULTIMATE.start_main_~x~0#1|)) (.cse18 (>= .cse19 |ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (or (and .cse6 .cse7) (and .cse16 .cse6 .cse7 .cse4 .cse17 .cse18))) (.cse0 (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse8 (or (and .cse16 .cse10 .cse13 .cse15 .cse7 .cse12 .cse4 .cse17 .cse18) (and .cse6 .cse10 .cse13 .cse15 .cse7 .cse12))) (.cse9 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse11 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 (= |ULTIMATE.start_main_~s~0#1| (+ .cse3 (- |ULTIMATE.start_main_~r~0#1|))) .cse2 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse4 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse5 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse6 .cse2 .cse7) (and .cse8 .cse0 .cse2) (and .cse0 .cse9 .cse6 .cse10 .cse2 .cse11 .cse7 .cse12) (and .cse8 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse5)) (= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~s~0#1|) 0) (<= (+ |ULTIMATE.start_main_~b~0#1| 1) (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) .cse2 .cse13 .cse12) (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse9 .cse6 .cse10 .cse2 .cse11 .cse13 .cse15 .cse12 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))))))) [2023-02-18 17:13:56,637 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 17:13:56,637 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 17:13:56,637 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-18 17:13:56,637 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-02-18 17:13:56,638 INFO L902 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2023-02-18 17:13:56,638 INFO L902 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: true [2023-02-18 17:13:56,638 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse12 (- |ULTIMATE.start_main_~q~0#1|)) (.cse8 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse11 (= .cse8 1)) (.cse0 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse4 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse12)))))) (let ((.cse5 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse2 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse3 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse6 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse7 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse10 (or (let ((.cse13 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1))) (let ((.cse14 (+ (* |ULTIMATE.start_main_~x~0#1| .cse13) (* |ULTIMATE.start_main_~y~0#1| .cse8)))) (and (= .cse13 0) .cse0 .cse1 .cse4 .cse11 (= (+ |ULTIMATE.start_main_~a~0#1| .cse14) |ULTIMATE.start_main_~x~0#1|) (>= .cse14 |ULTIMATE.start_main_~y~0#1|)))) (and .cse0 .cse1 .cse4)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and .cse1 .cse2 (= |ULTIMATE.start_main_~q~0#1| 0) .cse6 .cse5) (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|) .cse2 .cse3 .cse6) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse8 (- |ULTIMATE.start_main_~r~0#1|))) .cse9 .cse10 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse11 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse12 (- |ULTIMATE.start_main_~p~0#1|))))) (and (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse9 .cse10))))) [2023-02-18 17:13:56,638 INFO L902 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true [2023-02-18 17:13:56,638 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-18 17:13:56,638 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 51) no Hoare annotation was computed. [2023-02-18 17:13:56,639 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse3 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse19 (+ (* |ULTIMATE.start_main_~x~0#1| .cse20) (* |ULTIMATE.start_main_~y~0#1| .cse3))) (.cse5 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse14 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse12 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse10 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (= .cse20 0)) (.cse6 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse7 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse5))))) (.cse4 (= .cse3 1)) (.cse17 (= (+ |ULTIMATE.start_main_~a~0#1| .cse19) |ULTIMATE.start_main_~x~0#1|)) (.cse18 (>= .cse19 |ULTIMATE.start_main_~y~0#1|))) (let ((.cse1 (or (and .cse6 .cse7) (and .cse16 .cse6 .cse7 .cse4 .cse17 .cse18))) (.cse8 (or (and .cse16 .cse12 .cse9 .cse15 .cse7 .cse10 .cse4 .cse17 .cse18) (and .cse6 .cse12 .cse9 .cse15 .cse7 .cse10))) (.cse0 (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse11 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse1 (= |ULTIMATE.start_main_~s~0#1| (+ .cse3 (- |ULTIMATE.start_main_~r~0#1|))) .cse2 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse4 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse5 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse6 .cse2 .cse7) (and .cse8 .cse0 .cse2) (and .cse8 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse5)) (= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~s~0#1|) 0) (<= (+ |ULTIMATE.start_main_~b~0#1| 1) (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) .cse2 .cse9 .cse10) (and .cse0 .cse11 .cse6 .cse12 .cse2 .cse13 .cse7 .cse10) (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse11 .cse6 .cse12 .cse2 .cse13 .cse9 .cse15 .cse10 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))))))) [2023-02-18 17:13:56,639 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse20 (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1)) (.cse4 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse19 (+ (* |ULTIMATE.start_main_~x~0#1| .cse20) (* |ULTIMATE.start_main_~y~0#1| .cse4))) (.cse6 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse9 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse13 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse15 (= |ULTIMATE.start_main_~b~0#1| (+ (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~q~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~s~0#1|)))) (.cse12 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse14 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse16 (= .cse20 0)) (.cse8 (= |ULTIMATE.start_main_~a~0#1| (+ (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~r~0#1|) (* |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~p~0#1|)))) (.cse11 (= (+ |ULTIMATE.start_main_~a~0#1| (- |ULTIMATE.start_main_~b~0#1|)) (+ (* |ULTIMATE.start_main_~y~0#1| (+ |ULTIMATE.start_main_~r~0#1| (- |ULTIMATE.start_main_~s~0#1|))) (* |ULTIMATE.start_main_~x~0#1| (+ |ULTIMATE.start_main_~p~0#1| .cse6))))) (.cse5 (= .cse4 1)) (.cse17 (= (+ |ULTIMATE.start_main_~a~0#1| .cse19) |ULTIMATE.start_main_~x~0#1|)) (.cse18 (>= .cse19 |ULTIMATE.start_main_~y~0#1|))) (let ((.cse3 (or (and .cse8 .cse11) (and .cse16 .cse8 .cse11 .cse5 .cse17 .cse18))) (.cse0 (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse1 (or (and .cse8 .cse9 .cse13 .cse15 .cse11 .cse12) (and .cse16 .cse8 .cse9 .cse13 .cse15 .cse11 .cse12 .cse5 .cse17 .cse18))) (.cse7 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse2 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse10 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse2) (and .cse3 (= |ULTIMATE.start_main_~s~0#1| (+ .cse4 (- |ULTIMATE.start_main_~r~0#1|))) .cse2 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse5 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse6 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse7 .cse8 .cse9 .cse2 .cse10 .cse11 .cse12) (and (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse6)) (= (+ |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~s~0#1|) 0) .cse1 (<= (+ |ULTIMATE.start_main_~b~0#1| 1) (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~b~0#1|)) .cse2 .cse13 .cse12) (and (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse14 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) .cse7 .cse8 .cse9 .cse2 .cse10 .cse13 .cse15 .cse12 (>= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|))))))) [2023-02-18 17:13:56,639 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-02-18 17:13:56,639 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-18 17:13:56,639 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:13:56,639 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:13:56,639 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-02-18 17:13:56,639 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-02-18 17:13:56,640 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:13:56,640 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2023-02-18 17:13:56,640 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:13:56,640 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-02-18 17:13:56,643 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 17:13:56,644 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 17:13:56,657 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:56,670 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:56,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 05:13:56 BoogieIcfgContainer [2023-02-18 17:13:56,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 17:13:56,680 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 17:13:56,680 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 17:13:56,680 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 17:13:56,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:13:50" (3/4) ... [2023-02-18 17:13:56,682 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 17:13:56,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 17:13:56,688 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 17:13:56,691 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 17:13:56,691 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 17:13:56,691 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 17:13:56,691 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 17:13:56,720 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 17:13:56,720 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 17:13:56,720 INFO L158 Benchmark]: Toolchain (without parser) took 6437.85ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 94.6MB in the beginning and 77.9MB in the end (delta: 16.7MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,721 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 127.9MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 17:13:56,721 INFO L158 Benchmark]: CACSL2BoogieTranslator took 130.33ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 83.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,721 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.16ms. Allocated memory is still 127.9MB. Free memory was 83.8MB in the beginning and 82.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,721 INFO L158 Benchmark]: Boogie Preprocessor took 12.59ms. Allocated memory is still 127.9MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,721 INFO L158 Benchmark]: RCFGBuilder took 292.55ms. Allocated memory is still 127.9MB. Free memory was 80.8MB in the beginning and 70.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,722 INFO L158 Benchmark]: TraceAbstraction took 5938.20ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 81.0MB in the end (delta: -11.1MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,722 INFO L158 Benchmark]: Witness Printer took 40.08ms. Allocated memory is still 186.6MB. Free memory was 81.0MB in the beginning and 77.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-02-18 17:13:56,724 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 127.9MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 91.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 130.33ms. Allocated memory is still 127.9MB. Free memory was 94.4MB in the beginning and 83.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 20.16ms. Allocated memory is still 127.9MB. Free memory was 83.8MB in the beginning and 82.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.59ms. Allocated memory is still 127.9MB. Free memory was 82.2MB in the beginning and 81.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 292.55ms. Allocated memory is still 127.9MB. Free memory was 80.8MB in the beginning and 70.6MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 5938.20ms. Allocated memory was 127.9MB in the beginning and 186.6MB in the end (delta: 58.7MB). Free memory was 69.9MB in the beginning and 81.0MB in the end (delta: -11.1MB). Peak memory consumption was 48.7MB. Max. memory is 16.1GB. * Witness Printer took 40.08ms. Allocated memory is still 186.6MB. Free memory was 81.0MB in the beginning and 77.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] * 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: 5.9s, OverallIterations: 9, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 133 mSDsluCounter, 1233 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 932 mSDsCounter, 122 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1221 IncrementalHoareTripleChecker+Invalid, 1344 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 122 mSolverCounterUnsat, 301 mSDtfsCounter, 1221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 671 GetRequests, 560 SyntacticMatches, 10 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=8, 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: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 26 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 63 PreInvPairs, 111 NumberOfFragments, 4146 HoareAnnotationTreeSize, 63 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 408 NumberOfCodeBlocks, 408 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 629 ConstructedInterpolants, 2 QuantifiedInterpolants, 2320 SizeOfPredicates, 59 NumberOfNonLiveVariables, 1084 ConjunctsInSsa, 184 ConjunctsInUnsatCore, 14 InterpolantComputations, 3 PerfectInterpolantSequences, 651/710 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 [2023-02-18 17:13:56,736 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:13:56,737 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] Derived loop invariant: (((((((1 == p * s + -(r * q) && ((a == y * r + x * p && a + -b == y * (r + -s) + x * (p + -q)) || (((((p * -1 + 1 == 0 && a == y * r + x * p) && a + -b == y * (r + -s) + x * (p + -q)) && r * -1 == 1) && a + (x * (p * -1 + 1) + y * (r * -1)) == x) && x * (p * -1 + 1) + y * (r * -1) >= y))) && x >= 1) || (((((((a == y * r + x * p && a + -b == y * (r + -s) + x * (p + -q)) || (((((p * -1 + 1 == 0 && a == y * r + x * p) && a + -b == y * (r + -s) + x * (p + -q)) && r * -1 == 1) && a + (x * (p * -1 + 1) + y * (r * -1)) == x) && x * (p * -1 + 1) + y * (r * -1) >= y)) && s == r * -1 + -r) && x >= 1) && q + p == 0) && r * -1 == 1) && p == 1 + (-q + -p))) || (((1 == p * s + -(r * q) && a == y * r + x * p) && x >= 1) && a + -b == y * (r + -s) + x * (p + -q))) || (((((((((((p * -1 + 1 == 0 && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1) && r * -1 == 1) && a + (x * (p * -1 + 1) + y * (r * -1)) == x) && x * (p * -1 + 1) + y * (r * -1) >= y) || (((((a == y * r + x * p && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1)) && 1 == p * s + -(r * q)) && x >= 1)) || (((((((((((((((p * -1 + 1 == 0 && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1) && r * -1 == 1) && a + (x * (p * -1 + 1) + y * (r * -1)) == x) && x * (p * -1 + 1) + y * (r * -1) >= y) || (((((a == y * r + x * p && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1)) && p == 1 + -q) && r + s == 0) && b + 1 <= a + b) && x >= 1) && q == 0) && s == 1)) || (((((((1 == p * s + -(r * q) && a == x) && a == y * r + x * p) && p == 1) && x >= 1) && r == 0) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1)) || ((((((((((forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#1)) && a == x) && a == y * r + x * p) && p == 1) && x >= 1) && r == 0) && q == 0) && b == x * q + y * s) && s == 1) && b >= y) RESULT: Ultimate proved your program to be correct! [2023-02-18 17:13:56,750 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