./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_valuebound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 17:13:59,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 17:13:59,906 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 17:13:59,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 17:13:59,924 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 17:13:59,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 17:13:59,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 17:13:59,927 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 17:13:59,928 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 17:13:59,928 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 17:13:59,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 17:13:59,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 17:13:59,930 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 17:13:59,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 17:13:59,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 17:13:59,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 17:13:59,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 17:13:59,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 17:13:59,934 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 17:13:59,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 17:13:59,936 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 17:13:59,937 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 17:13:59,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 17:13:59,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 17:13:59,941 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 17:13:59,941 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 17:13:59,941 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 17:13:59,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 17:13:59,942 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 17:13:59,943 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 17:13:59,943 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 17:13:59,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 17:13:59,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 17:13:59,944 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 17:13:59,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 17:13:59,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 17:13:59,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 17:13:59,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 17:13:59,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 17:13:59,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 17:13:59,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 17:13:59,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 17:13:59,971 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 17:13:59,971 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 17:13:59,971 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 17:13:59,972 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 17:13:59,972 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 17:13:59,972 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 17:13:59,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 17:13:59,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 17:13:59,973 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 17:13:59,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 17:13:59,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 17:13:59,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 17:13:59,975 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 17:13:59,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 17:13:59,975 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 17:13:59,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 17:13:59,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 17:13:59,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 17:13:59,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 17:13:59,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:13:59,976 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 17:13:59,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 17:13:59,978 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 17:13:59,978 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 17:13:59,978 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 17:13:59,978 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f9b33d2a8120d9ea8a3a6c5d650c2a90b549ffb583b3e9890b411aeb4530efd [2023-02-18 17:14:00,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 17:14:00,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 17:14:00,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 17:14:00,210 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 17:14:00,211 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 17:14:00,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c [2023-02-18 17:14:01,058 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 17:14:01,241 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 17:14:01,241 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c [2023-02-18 17:14:01,248 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548b0ca36/3aba23ccc54f477ea4838031b6eba09b/FLAG9ed187d56 [2023-02-18 17:14:01,263 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/548b0ca36/3aba23ccc54f477ea4838031b6eba09b [2023-02-18 17:14:01,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 17:14:01,266 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 17:14:01,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 17:14:01,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 17:14:01,270 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 17:14:01,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,272 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f6cf961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01, skipping insertion in model container [2023-02-18 17:14:01,273 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 17:14:01,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 17:14:01,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c[489,502] [2023-02-18 17:14:01,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:14:01,437 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 17:14:01,446 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd-ll_valuebound5.c[489,502] [2023-02-18 17:14:01,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 17:14:01,462 INFO L208 MainTranslator]: Completed translation [2023-02-18 17:14:01,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01 WrapperNode [2023-02-18 17:14:01,462 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 17:14:01,463 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 17:14:01,464 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 17:14:01,464 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 17:14:01,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,483 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-02-18 17:14:01,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 17:14:01,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 17:14:01,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 17:14:01,484 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 17:14:01,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,490 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,490 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,494 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 17:14:01,496 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 17:14:01,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 17:14:01,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 17:14:01,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (1/1) ... [2023-02-18 17:14:01,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 17:14:01,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:01,527 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 17:14:01,539 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 17:14:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 17:14:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 17:14:01,557 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 17:14:01,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 17:14:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 17:14:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 17:14:01,558 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 17:14:01,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 17:14:01,597 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 17:14:01,598 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 17:14:01,761 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 17:14:01,765 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 17:14:01,765 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 17:14:01,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:14:01 BoogieIcfgContainer [2023-02-18 17:14:01,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 17:14:01,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 17:14:01,768 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 17:14:01,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 17:14:01,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 05:14:01" (1/3) ... [2023-02-18 17:14:01,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480e9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:14:01, skipping insertion in model container [2023-02-18 17:14:01,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 05:14:01" (2/3) ... [2023-02-18 17:14:01,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@480e9054 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 05:14:01, skipping insertion in model container [2023-02-18 17:14:01,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:14:01" (3/3) ... [2023-02-18 17:14:01,771 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd-ll_valuebound5.c [2023-02-18 17:14:01,782 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 17:14:01,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 17:14:01,810 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 17:14:01,814 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;@74fa0330, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 17:14:01,815 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 17:14:01,817 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 17:14:01,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-02-18 17:14:01,823 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:01,823 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 17:14:01,824 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:01,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:01,828 INFO L85 PathProgramCache]: Analyzing trace with hash 501437177, now seen corresponding path program 1 times [2023-02-18 17:14:01,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:01,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667271385] [2023-02-18 17:14:01,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:01,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:01,921 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:01,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2042186474] [2023-02-18 17:14:01,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:01,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:01,925 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 17:14:01,927 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 17:14:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:02,027 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 17:14:02,031 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:02,129 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 17:14:02,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:02,192 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 17:14:02,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:02,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667271385] [2023-02-18 17:14:02,193 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:02,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2042186474] [2023-02-18 17:14:02,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2042186474] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:14:02,194 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:14:02,194 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-02-18 17:14:02,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827311670] [2023-02-18 17:14:02,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:14:02,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:14:02,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:02,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:14:02,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:14:02,221 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 17:14:02,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:02,329 INFO L93 Difference]: Finished difference Result 79 states and 134 transitions. [2023-02-18 17:14:02,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:14:02,331 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 17:14:02,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:02,336 INFO L225 Difference]: With dead ends: 79 [2023-02-18 17:14:02,336 INFO L226 Difference]: Without dead ends: 42 [2023-02-18 17:14:02,339 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 17:14:02,341 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 11 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 3 mSolverCounterUnsat, 0 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, 3 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:14:02,341 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 145 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:14:02,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-18 17:14:02,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2023-02-18 17:14:02,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 20 states have (on average 1.25) internal successors, (25), 22 states have internal predecessors, (25), 17 states have call successors, (17), 3 states have call predecessors, (17), 3 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-18 17:14:02,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 58 transitions. [2023-02-18 17:14:02,368 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 58 transitions. Word has length 29 [2023-02-18 17:14:02,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:02,369 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 58 transitions. [2023-02-18 17:14:02,369 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 17:14:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 58 transitions. [2023-02-18 17:14:02,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-02-18 17:14:02,370 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:02,370 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 17:14:02,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 17:14:02,575 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 17:14:02,576 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:02,577 INFO L85 PathProgramCache]: Analyzing trace with hash -1017640517, now seen corresponding path program 1 times [2023-02-18 17:14:02,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:02,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147556652] [2023-02-18 17:14:02,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:02,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:02,599 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:02,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2089734746] [2023-02-18 17:14:02,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:02,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:02,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:02,606 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 17:14:02,615 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 17:14:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:02,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 17:14:02,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:02,725 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 17:14:02,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:02,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:02,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147556652] [2023-02-18 17:14:02,794 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:02,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089734746] [2023-02-18 17:14:02,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089734746] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:14:02,797 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:14:02,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:14:02,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982401506] [2023-02-18 17:14:02,798 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:14:02,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:14:02,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:02,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:14:02,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-18 17:14:02,800 INFO L87 Difference]: Start difference. First operand 41 states and 58 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 17:14:02,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:02,913 INFO L93 Difference]: Finished difference Result 48 states and 64 transitions. [2023-02-18 17:14:02,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:14:02,914 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 17:14:02,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:02,915 INFO L225 Difference]: With dead ends: 48 [2023-02-18 17:14:02,915 INFO L226 Difference]: Without dead ends: 46 [2023-02-18 17:14:02,915 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 17:14:02,918 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 17:14:02,918 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 17:14:02,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2023-02-18 17:14:02,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 45. [2023-02-18 17:14:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 23 states have (on average 1.2173913043478262) internal successors, (28), 25 states have internal predecessors, (28), 17 states have call successors, (17), 4 states have call predecessors, (17), 4 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2023-02-18 17:14:02,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 61 transitions. [2023-02-18 17:14:02,934 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 61 transitions. Word has length 34 [2023-02-18 17:14:02,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:02,934 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 61 transitions. [2023-02-18 17:14:02,934 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 17:14:02,934 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 61 transitions. [2023-02-18 17:14:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 17:14:02,935 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:02,935 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 17:14:02,940 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 17:14:03,142 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 17:14:03,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:03,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1133401081, now seen corresponding path program 1 times [2023-02-18 17:14:03,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:03,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138361761] [2023-02-18 17:14:03,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:03,156 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:03,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1684160156] [2023-02-18 17:14:03,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:03,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:03,169 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 17:14:03,170 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 17:14:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:03,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 27 conjunts are in the unsatisfiable core [2023-02-18 17:14:03,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:03,259 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 17:14:03,259 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:03,291 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 17:14:03,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:03,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138361761] [2023-02-18 17:14:03,292 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:03,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684160156] [2023-02-18 17:14:03,292 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684160156] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 17:14:03,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:14:03,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 13 [2023-02-18 17:14:03,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494381710] [2023-02-18 17:14:03,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:14:03,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:14:03,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:03,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:14:03,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2023-02-18 17:14:03,294 INFO L87 Difference]: Start difference. First operand 45 states and 61 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 17:14:03,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:03,339 INFO L93 Difference]: Finished difference Result 70 states and 101 transitions. [2023-02-18 17:14:03,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 17:14:03,339 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 17:14:03,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:03,341 INFO L225 Difference]: With dead ends: 70 [2023-02-18 17:14:03,341 INFO L226 Difference]: Without dead ends: 66 [2023-02-18 17:14:03,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:14:03,343 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 17:14:03,343 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 17:14:03,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-02-18 17:14:03,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-02-18 17:14:03,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 32 states have (on average 1.28125) internal successors, (41), 36 states have internal predecessors, (41), 28 states have call successors, (28), 5 states have call predecessors, (28), 5 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-02-18 17:14:03,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 94 transitions. [2023-02-18 17:14:03,354 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 94 transitions. Word has length 39 [2023-02-18 17:14:03,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:03,355 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 94 transitions. [2023-02-18 17:14:03,355 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 17:14:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 94 transitions. [2023-02-18 17:14:03,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-02-18 17:14:03,356 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:03,356 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 17:14:03,371 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 17:14:03,561 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 17:14:03,562 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:03,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:03,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1954831506, now seen corresponding path program 1 times [2023-02-18 17:14:03,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:03,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65243391] [2023-02-18 17:14:03,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:03,573 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:03,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218937562] [2023-02-18 17:14:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,573 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:03,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:03,589 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 17:14:03,599 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 17:14:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:03,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 17:14:03,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:03,657 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 17:14:03,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 17:14:03,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:03,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65243391] [2023-02-18 17:14:03,658 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:03,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218937562] [2023-02-18 17:14:03,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218937562] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 17:14:03,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 17:14:03,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-18 17:14:03,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009178935] [2023-02-18 17:14:03,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 17:14:03,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 17:14:03,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:03,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 17:14:03,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-18 17:14:03,661 INFO L87 Difference]: Start difference. First operand 66 states and 94 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 17:14:03,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:03,698 INFO L93 Difference]: Finished difference Result 72 states and 99 transitions. [2023-02-18 17:14:03,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-18 17:14:03,700 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 17:14:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:03,703 INFO L225 Difference]: With dead ends: 72 [2023-02-18 17:14:03,704 INFO L226 Difference]: Without dead ends: 70 [2023-02-18 17:14:03,705 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 17:14:03,706 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 17:14:03,707 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 17:14:03,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2023-02-18 17:14:03,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2023-02-18 17:14:03,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 39 states have internal predecessors, (44), 28 states have call successors, (28), 6 states have call predecessors, (28), 6 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2023-02-18 17:14:03,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 97 transitions. [2023-02-18 17:14:03,733 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 97 transitions. Word has length 45 [2023-02-18 17:14:03,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:03,735 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 97 transitions. [2023-02-18 17:14:03,735 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 17:14:03,735 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 97 transitions. [2023-02-18 17:14:03,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 17:14:03,738 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:03,738 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 17:14:03,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-18 17:14:03,943 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 17:14:03,943 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:03,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:03,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1322486933, now seen corresponding path program 1 times [2023-02-18 17:14:03,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:03,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988028310] [2023-02-18 17:14:03,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:03,969 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:03,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259959320] [2023-02-18 17:14:03,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:03,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:03,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:03,974 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 17:14:04,009 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 17:14:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:04,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 17:14:04,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:04,069 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 17:14:04,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:04,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:04,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988028310] [2023-02-18 17:14:04,110 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:04,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259959320] [2023-02-18 17:14:04,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259959320] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 17:14:04,110 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-18 17:14:04,110 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2023-02-18 17:14:04,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546030475] [2023-02-18 17:14:04,111 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-18 17:14:04,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-18 17:14:04,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:04,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-18 17:14:04,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-02-18 17:14:04,112 INFO L87 Difference]: Start difference. First operand 70 states and 97 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 17:14:04,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:04,172 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2023-02-18 17:14:04,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 17:14:04,173 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 17:14:04,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:04,174 INFO L225 Difference]: With dead ends: 80 [2023-02-18 17:14:04,174 INFO L226 Difference]: Without dead ends: 77 [2023-02-18 17:14:04,174 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 17:14:04,174 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 13 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 17:14:04,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 108 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 17:14:04,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-02-18 17:14:04,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2023-02-18 17:14:04,182 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 17:14:04,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2023-02-18 17:14:04,183 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 47 [2023-02-18 17:14:04,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:04,183 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2023-02-18 17:14:04,183 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 17:14:04,183 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2023-02-18 17:14:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-02-18 17:14:04,184 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:04,184 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 17:14:04,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 17:14:04,389 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 17:14:04,389 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:04,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:04,391 INFO L85 PathProgramCache]: Analyzing trace with hash 1617953190, now seen corresponding path program 1 times [2023-02-18 17:14:04,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:04,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887681618] [2023-02-18 17:14:04,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:04,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:04,399 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:04,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1050760607] [2023-02-18 17:14:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:04,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:04,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:04,401 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 17:14:04,403 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 17:14:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:04,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2023-02-18 17:14:04,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:04,486 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 17:14:04,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:04,560 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 17:14:04,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:04,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887681618] [2023-02-18 17:14:04,562 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:04,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1050760607] [2023-02-18 17:14:04,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1050760607] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:14:04,562 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:14:04,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2023-02-18 17:14:04,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678068087] [2023-02-18 17:14:04,562 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:14:04,564 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 17:14:04,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:04,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 17:14:04,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2023-02-18 17:14:04,565 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 17:14:04,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:04,672 INFO L93 Difference]: Finished difference Result 84 states and 108 transitions. [2023-02-18 17:14:04,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 17:14:04,673 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 17:14:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:04,673 INFO L225 Difference]: With dead ends: 84 [2023-02-18 17:14:04,673 INFO L226 Difference]: Without dead ends: 80 [2023-02-18 17:14:04,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 84 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2023-02-18 17:14:04,675 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 17:14:04,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 124 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 17:14:04,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2023-02-18 17:14:04,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2023-02-18 17:14:04,684 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 17:14:04,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 101 transitions. [2023-02-18 17:14:04,685 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 101 transitions. Word has length 50 [2023-02-18 17:14:04,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:04,686 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 101 transitions. [2023-02-18 17:14:04,686 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 17:14:04,686 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 101 transitions. [2023-02-18 17:14:04,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-02-18 17:14:04,688 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:04,688 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 17:14:04,706 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 17:14:04,892 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 17:14:04,894 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:04,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:04,894 INFO L85 PathProgramCache]: Analyzing trace with hash 860577929, now seen corresponding path program 2 times [2023-02-18 17:14:04,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:04,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564624743] [2023-02-18 17:14:04,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:04,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:04,909 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:04,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276735327] [2023-02-18 17:14:04,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 17:14:04,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:04,911 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 17:14:04,913 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 17:14:04,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 17:14:04,949 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 17:14:04,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 17:14:04,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:04,977 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 17:14:04,977 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:05,031 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 17:14:05,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564624743] [2023-02-18 17:14:05,032 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:05,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276735327] [2023-02-18 17:14:05,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276735327] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:14:05,032 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:14:05,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2023-02-18 17:14:05,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76435744] [2023-02-18 17:14:05,033 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:14:05,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-18 17:14:05,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:05,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-18 17:14:05,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2023-02-18 17:14:05,034 INFO L87 Difference]: Start difference. First operand 80 states and 101 transitions. Second operand has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-18 17:14:05,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:05,508 INFO L93 Difference]: Finished difference Result 106 states and 137 transitions. [2023-02-18 17:14:05,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 17:14:05,509 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) Word has length 52 [2023-02-18 17:14:05,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:05,510 INFO L225 Difference]: With dead ends: 106 [2023-02-18 17:14:05,510 INFO L226 Difference]: Without dead ends: 99 [2023-02-18 17:14:05,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 89 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2023-02-18 17:14:05,511 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 23 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-18 17:14:05,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 144 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-18 17:14:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2023-02-18 17:14:05,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 84. [2023-02-18 17:14:05,520 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 17:14:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 98 transitions. [2023-02-18 17:14:05,521 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 98 transitions. Word has length 52 [2023-02-18 17:14:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:05,521 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 98 transitions. [2023-02-18 17:14:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.230769230769231) internal successors, (29), 12 states have internal predecessors, (29), 5 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (12), 6 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-18 17:14:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 98 transitions. [2023-02-18 17:14:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-02-18 17:14:05,522 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 17:14:05,522 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 17:14:05,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 17:14:05,727 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 17:14:05,727 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 17:14:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 17:14:05,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1236716699, now seen corresponding path program 1 times [2023-02-18 17:14:05,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 17:14:05,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93885301] [2023-02-18 17:14:05,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:05,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 17:14:05,736 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 17:14:05,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1067527038] [2023-02-18 17:14:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 17:14:05,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 17:14:05,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 17:14:05,737 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 17:14:05,739 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 17:14:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 17:14:05,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 17:14:05,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 17:14:05,815 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 17:14:05,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 17:14:05,897 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 17:14:05,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 17:14:05,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93885301] [2023-02-18 17:14:05,898 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 17:14:05,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1067527038] [2023-02-18 17:14:05,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1067527038] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 17:14:05,898 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 17:14:05,898 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7] total 15 [2023-02-18 17:14:05,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39980355] [2023-02-18 17:14:05,898 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 17:14:05,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-18 17:14:05,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 17:14:05,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-18 17:14:05,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2023-02-18 17:14:05,900 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 17:14:06,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 17:14:06,300 INFO L93 Difference]: Finished difference Result 99 states and 124 transitions. [2023-02-18 17:14:06,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 17:14:06,301 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 17:14:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 17:14:06,301 INFO L225 Difference]: With dead ends: 99 [2023-02-18 17:14:06,301 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 17:14:06,302 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 17:14:06,302 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 33 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 17:14:06,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 190 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 17:14:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 17:14:06,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 17:14:06,303 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 17:14:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 17:14:06,303 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 65 [2023-02-18 17:14:06,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 17:14:06,303 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 17:14:06,303 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 17:14:06,303 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 17:14:06,303 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 17:14:06,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 17:14:06,310 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 17:14:06,510 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 17:14:06,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 17:14:06,522 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 52) the Hoare annotation is: (let ((.cse12 (- |ULTIMATE.start_main_~q~0#1|)) (.cse10 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse7 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse11 (= .cse10 1)) (.cse2 (= |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|)) (.cse6 (= (+ |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 ((.cse8 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse9 (or (and (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0) (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse2 .cse4 .cse6 .cse11) (and .cse2 .cse4 .cse6))) (.cse0 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse8 .cse9) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse10 (- |ULTIMATE.start_main_~r~0#1|))) .cse8 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse11 .cse9 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse12 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse2 .cse4 (let ((.cse13 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse14 (= |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|)))) (.cse15 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse4 .cse3 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse13 .cse14 .cse15)))))))) [2023-02-18 17:14:06,522 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 17:14:06,522 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (>= |ULTIMATE.start_main_~x~0#1| 1) [2023-02-18 17:14:06,523 INFO L895 garLoopResultBuilder]: At program point L56(line 56) the Hoare annotation is: (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|)) (.cse2 (= (+ |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|))))))) (or (and (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0) (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse0 .cse1 .cse2 (= (* |ULTIMATE.start_main_~r~0#1| (- 1)) 1)) (and .cse0 .cse1 .cse2) (= |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 17:14:06,523 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (let ((.cse12 (- |ULTIMATE.start_main_~q~0#1|)) (.cse10 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse7 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse11 (= .cse10 1)) (.cse2 (= |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|)) (.cse6 (= (+ |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 ((.cse8 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse9 (or (and (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0) (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse2 .cse4 .cse6 .cse11) (and .cse2 .cse4 .cse6))) (.cse0 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (= 1 (+ .cse7 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse8 .cse9) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse10 (- |ULTIMATE.start_main_~r~0#1|))) .cse8 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse11 .cse9 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse12 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse2 .cse4 (let ((.cse13 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse14 (= |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|)))) (.cse15 (= |ULTIMATE.start_main_~s~0#1| 1))) (or (and .cse4 .cse3 .cse13 .cse14 .cse15) (and .cse0 .cse1 .cse3 .cse4 .cse5 .cse13 .cse14 .cse15)))))))) [2023-02-18 17:14:06,523 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 17:14:06,523 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 18 59) the Hoare annotation is: true [2023-02-18 17:14:06,523 INFO L899 garLoopResultBuilder]: For program point L38(lines 35 52) no Hoare annotation was computed. [2023-02-18 17:14:06,524 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (let ((.cse11 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse13 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse3 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse7 (= |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|)))) (.cse8 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse17 (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0)) (.cse18 (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)) (.cse2 (= |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|)))) (.cse14 (= (+ |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| .cse13))))) (.cse12 (= .cse11 1))) (let ((.cse10 (or (and .cse2 .cse14) (and .cse17 .cse18 .cse2 .cse14 .cse12))) (.cse0 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse15 (or (and .cse17 .cse18 .cse3 .cse6 .cse7 .cse14 .cse8 .cse12) (and .cse2 .cse3 .cse6 .cse7 .cse14 .cse8))) (.cse9 (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| 1))) (or (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse4 .cse10) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse11 (- |ULTIMATE.start_main_~r~0#1|))) .cse4 .cse10 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse12 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse13 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse9 .cse2 .cse4 .cse14) (and .cse0 .cse9 .cse1 .cse2 .cse3 .cse4 .cse5 .cse14) (and .cse15 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse13)) (= (+ |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|)) .cse4 .cse6 .cse8) (and .cse15 .cse9 .cse4))))) [2023-02-18 17:14:06,524 INFO L895 garLoopResultBuilder]: At program point L36-1(line 36) the Hoare annotation is: (let ((.cse11 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse13 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse6 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse8 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse9 (= |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 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse17 (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0)) (.cse18 (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= |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|)))) (.cse14 (= (+ |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| .cse13))))) (.cse12 (= .cse11 1))) (let ((.cse2 (or (and .cse5 .cse14) (and .cse17 .cse18 .cse5 .cse14 .cse12))) (.cse3 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse4 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse7 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse15 (or (and .cse17 .cse18 .cse6 .cse8 .cse9 .cse14 .cse10 .cse12) (and .cse5 .cse6 .cse8 .cse9 .cse14 .cse10))) (.cse0 (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse1 (>= |ULTIMATE.start_main_~x~0#1| 1))) (or (and .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse3 .cse4 .cse5 .cse6 .cse1 .cse7 .cse8 .cse9 .cse10) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse11 (- |ULTIMATE.start_main_~r~0#1|))) .cse1 .cse2 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse12 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse13 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse0 .cse5 .cse1 .cse14) (and .cse3 .cse0 .cse4 .cse5 .cse6 .cse1 .cse7 .cse14) (and .cse15 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse13)) (= (+ |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|)) .cse1 .cse8 .cse10) (and .cse15 .cse0 .cse1))))) [2023-02-18 17:14:06,524 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 17:14:06,524 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 17:14:06,524 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-02-18 17:14:06,525 INFO L899 garLoopResultBuilder]: For program point L57(line 57) no Hoare annotation was computed. [2023-02-18 17:14:06,525 INFO L902 garLoopResultBuilder]: At program point L24(line 24) the Hoare annotation is: true [2023-02-18 17:14:06,525 INFO L902 garLoopResultBuilder]: At program point L24-1(line 24) the Hoare annotation is: true [2023-02-18 17:14:06,525 INFO L895 garLoopResultBuilder]: At program point L55(line 55) the Hoare annotation is: (let ((.cse13 (- |ULTIMATE.start_main_~q~0#1|)) (.cse11 (* |ULTIMATE.start_main_~r~0#1| (- 1)))) (let ((.cse12 (= .cse11 1)) (.cse2 (= |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|)) (.cse6 (= (+ |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| .cse13))))) (.cse8 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|))) (let ((.cse0 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse8 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse3 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse7 (= |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|)))) (.cse9 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse10 (or (and (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0) (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|) .cse2 .cse4 .cse6 .cse12) (and .cse2 .cse4 .cse6)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and .cse4 .cse3 (= |ULTIMATE.start_main_~q~0#1| 0) .cse7 (= |ULTIMATE.start_main_~s~0#1| 1)) (and .cse0 .cse1 .cse3 .cse5 .cse7) (and (= 1 (+ .cse8 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))) .cse9 .cse10) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse11 (- |ULTIMATE.start_main_~r~0#1|))) .cse9 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse12 .cse10 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse13 (- |ULTIMATE.start_main_~p~0#1|))))))))) [2023-02-18 17:14:06,525 INFO L902 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: true [2023-02-18 17:14:06,525 INFO L899 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2023-02-18 17:14:06,525 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 51) no Hoare annotation was computed. [2023-02-18 17:14:06,526 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 35 52) the Hoare annotation is: (let ((.cse11 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse13 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse3 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse6 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse7 (= |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|)))) (.cse8 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse16 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse17 (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0)) (.cse18 (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)) (.cse2 (= |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|)))) (.cse14 (= (+ |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| .cse13))))) (.cse12 (= .cse11 1))) (let ((.cse10 (or (and .cse2 .cse14) (and .cse17 .cse18 .cse2 .cse14 .cse12))) (.cse0 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse1 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse5 (= |ULTIMATE.start_main_~r~0#1| 0)) (.cse15 (or (and .cse17 .cse18 .cse3 .cse6 .cse7 .cse14 .cse8 .cse12) (and .cse2 .cse3 .cse6 .cse7 .cse14 .cse8))) (.cse9 (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse4 (>= |ULTIMATE.start_main_~x~0#1| 1))) (or (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse9 .cse4 .cse10) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse11 (- |ULTIMATE.start_main_~r~0#1|))) .cse4 .cse10 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse12 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse13 (- |ULTIMATE.start_main_~p~0#1|))))) (and .cse9 .cse2 .cse4 .cse14) (and .cse15 (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse13)) (= (+ |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|)) .cse4 .cse6 .cse8) (and .cse0 .cse9 .cse1 .cse2 .cse3 .cse4 .cse5 .cse14) (and .cse15 .cse9 .cse4))))) [2023-02-18 17:14:06,526 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (let ((.cse12 (* |ULTIMATE.start_main_~r~0#1| (- 1))) (.cse14 (- |ULTIMATE.start_main_~q~0#1|))) (let ((.cse16 (* |ULTIMATE.start_main_~p~0#1| |ULTIMATE.start_main_~s~0#1|)) (.cse7 (= |ULTIMATE.start_main_~p~0#1| 1)) (.cse9 (= |ULTIMATE.start_main_~q~0#1| 0)) (.cse10 (= |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|)))) (.cse11 (= |ULTIMATE.start_main_~s~0#1| 1)) (.cse17 (= (+ (* |ULTIMATE.start_main_~p~0#1| (- 1)) 1) 0)) (.cse18 (= (+ |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~y~0#1|) |ULTIMATE.start_main_~x~0#1|)) (.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|)))) (.cse15 (= (+ |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| .cse14))))) (.cse13 (= .cse12 1))) (let ((.cse3 (or (and .cse6 .cse15) (and .cse17 .cse18 .cse6 .cse15 .cse13))) (.cse2 (or (and .cse17 .cse18 .cse6 .cse7 .cse9 .cse10 .cse15 .cse11 .cse13) (and .cse6 .cse7 .cse9 .cse10 .cse15 .cse11))) (.cse4 (forall ((|ULTIMATE.start_main_~q~0#1| Int)) (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|)))))) (.cse0 (= 1 (+ .cse16 (- (* |ULTIMATE.start_main_~r~0#1| |ULTIMATE.start_main_~q~0#1|))))) (.cse5 (= |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~x~0#1|)) (.cse1 (>= |ULTIMATE.start_main_~x~0#1| 1)) (.cse8 (= |ULTIMATE.start_main_~r~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3) (and (= |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~y~0#1|) .cse4 .cse5 .cse6 .cse7 .cse1 .cse8 .cse9 .cse10 .cse11) (and (= |ULTIMATE.start_main_~s~0#1| (+ .cse12 (- |ULTIMATE.start_main_~r~0#1|))) .cse1 .cse3 (= (+ |ULTIMATE.start_main_~q~0#1| |ULTIMATE.start_main_~p~0#1|) 0) .cse13 (= |ULTIMATE.start_main_~p~0#1| (+ 1 (+ .cse14 (- |ULTIMATE.start_main_~p~0#1|))))) (and (= |ULTIMATE.start_main_~p~0#1| (+ 1 .cse14)) (= (+ |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|)) .cse1 .cse9 .cse11 .cse2) (and .cse4 .cse0 .cse5 .cse6 .cse7 .cse1 .cse8 .cse15))))) [2023-02-18 17:14:06,526 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 7 9) the Hoare annotation is: true [2023-02-18 17:14:06,526 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2023-02-18 17:14:06,526 INFO L899 garLoopResultBuilder]: For program point L8-2(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:14:06,526 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2023-02-18 17:14:06,527 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 13) no Hoare annotation was computed. [2023-02-18 17:14:06,527 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 14) no Hoare annotation was computed. [2023-02-18 17:14:06,527 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:14:06,527 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 16) the Hoare annotation is: true [2023-02-18 17:14:06,527 INFO L899 garLoopResultBuilder]: For program point L11-2(lines 10 16) no Hoare annotation was computed. [2023-02-18 17:14:06,527 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2023-02-18 17:14:06,529 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2023-02-18 17:14:06,530 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 17:14:06,536 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,537 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,557 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,557 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 05:14:06 BoogieIcfgContainer [2023-02-18 17:14:06,559 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 17:14:06,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 17:14:06,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 17:14:06,560 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 17:14:06,560 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 05:14:01" (3/4) ... [2023-02-18 17:14:06,562 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 17:14:06,568 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 17:14:06,569 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 17:14:06,571 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-18 17:14:06,571 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-18 17:14:06,571 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-18 17:14:06,571 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 17:14:06,600 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 17:14:06,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 17:14:06,601 INFO L158 Benchmark]: Toolchain (without parser) took 5334.74ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 105.6MB in the beginning and 147.8MB in the end (delta: -42.2MB). Peak memory consumption was 103.3MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,601 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 17:14:06,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.31ms. Allocated memory is still 136.3MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.57ms. Allocated memory is still 136.3MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,601 INFO L158 Benchmark]: Boogie Preprocessor took 12.41ms. Allocated memory is still 136.3MB. Free memory was 93.0MB in the beginning and 92.0MB in the end (delta: 994.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 17:14:06,602 INFO L158 Benchmark]: RCFGBuilder took 270.02ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 81.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,602 INFO L158 Benchmark]: TraceAbstraction took 4791.77ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 80.9MB in the beginning and 48.9MB in the end (delta: 32.0MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,602 INFO L158 Benchmark]: Witness Printer took 40.94ms. Allocated memory is still 178.3MB. Free memory was 48.9MB in the beginning and 147.8MB in the end (delta: -98.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 17:14:06,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 136.3MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.31ms. Allocated memory is still 136.3MB. Free memory was 105.6MB in the beginning and 94.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 19.57ms. Allocated memory is still 136.3MB. Free memory was 94.6MB in the beginning and 93.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.41ms. Allocated memory is still 136.3MB. Free memory was 93.0MB in the beginning and 92.0MB in the end (delta: 994.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 270.02ms. Allocated memory is still 136.3MB. Free memory was 92.0MB in the beginning and 81.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4791.77ms. Allocated memory was 136.3MB in the beginning and 178.3MB in the end (delta: 41.9MB). Free memory was 80.9MB in the beginning and 48.9MB in the end (delta: 32.0MB). Peak memory consumption was 78.1MB. Max. memory is 16.1GB. * Witness Printer took 40.94ms. Allocated memory is still 178.3MB. Free memory was 48.9MB in the beginning and 147.8MB in the end (delta: -98.9MB). Peak memory consumption was 2.1MB. 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] - 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: 4.7s, OverallIterations: 8, TraceHistogramMax: 7, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 145 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 120 mSDsluCounter, 1066 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 791 mSDsCounter, 106 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1079 IncrementalHoareTripleChecker+Invalid, 1185 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 106 mSolverCounterUnsat, 275 mSDtfsCounter, 1079 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 615 GetRequests, 516 SyntacticMatches, 9 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=7, InterpolantAutomatonStates: 60, 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, 8 MinimizatonAttempts, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 63 PreInvPairs, 111 NumberOfFragments, 3412 HoareAnnotationTreeSize, 63 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 15 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 361 NumberOfCodeBlocks, 361 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 583 ConstructedInterpolants, 2 QuantifiedInterpolants, 2091 SizeOfPredicates, 52 NumberOfNonLiveVariables, 959 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 608/666 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 17:14:06,606 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,607 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,608 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] [2023-02-18 17:14:06,608 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~q~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((b == y && (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) || ((1 == p * s + -(r * q) && x >= 1) && ((a == y * r + x * p && a + -b == y * (r + -s) + x * (p + -q)) || ((((p * -1 + 1 == 0 && a + y == x) && a == y * r + x * p) && a + -b == y * (r + -s) + x * (p + -q)) && r * -1 == 1)))) || (((((s == r * -1 + -r && x >= 1) && ((a == y * r + x * p && a + -b == y * (r + -s) + x * (p + -q)) || ((((p * -1 + 1 == 0 && a + y == x) && a == y * r + x * p) && a + -b == y * (r + -s) + x * (p + -q)) && r * -1 == 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 && a + y == x) && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1) && r * -1 == 1) || (((((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)) || ((((((((forall ULTIMATE.start_main_~q~0#1 : int :: 1 == p * s + -(r * ULTIMATE.start_main_~q~0#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))) || ((((((((((p * -1 + 1 == 0 && a + y == x) && p == 1) && q == 0) && b == x * q + y * s) && a + -b == y * (r + -s) + x * (p + -q)) && s == 1) && r * -1 == 1) || (((((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) RESULT: Ultimate proved your program to be correct! [2023-02-18 17:14:06,618 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