./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5317dae 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/ps5-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 e14135f4afb726bf8552a88de51bf2d1eeb5945775070b599f71e8288a74bc87 --- Real Ultimate output --- This is Ultimate 0.2.2-?-b5317da-m [2023-02-16 02:50:16,921 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-16 02:50:16,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-16 02:50:16,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-16 02:50:16,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-16 02:50:16,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-16 02:50:16,952 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-16 02:50:16,954 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-16 02:50:16,957 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-16 02:50:16,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-16 02:50:16,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-16 02:50:16,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-16 02:50:16,962 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-16 02:50:16,964 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-16 02:50:16,965 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-16 02:50:16,967 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-16 02:50:16,969 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-16 02:50:16,972 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-16 02:50:16,974 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-16 02:50:16,975 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-16 02:50:16,978 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-16 02:50:16,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-16 02:50:16,980 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-16 02:50:16,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-16 02:50:16,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-16 02:50:16,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-16 02:50:16,987 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-16 02:50:16,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-16 02:50:16,988 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-16 02:50:16,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-16 02:50:16,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-16 02:50:16,991 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-16 02:50:16,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-16 02:50:16,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-16 02:50:16,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-16 02:50:16,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-16 02:50:16,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-16 02:50:16,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-16 02:50:16,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-16 02:50:16,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-16 02:50:16,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-16 02:50:16,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-16 02:50:17,025 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-16 02:50:17,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-16 02:50:17,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-16 02:50:17,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-16 02:50:17,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-16 02:50:17,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-16 02:50:17,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-16 02:50:17,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-16 02:50:17,027 INFO L138 SettingsManager]: * Use SBE=true [2023-02-16 02:50:17,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-16 02:50:17,028 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-16 02:50:17,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-16 02:50:17,030 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-16 02:50:17,030 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-16 02:50:17,030 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-16 02:50:17,030 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-16 02:50:17,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-16 02:50:17,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-16 02:50:17,031 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-16 02:50:17,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:50:17,031 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-16 02:50:17,031 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-16 02:50:17,031 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-16 02:50:17,032 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-16 02:50:17,033 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-16 02:50:17,033 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e14135f4afb726bf8552a88de51bf2d1eeb5945775070b599f71e8288a74bc87 [2023-02-16 02:50:17,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-16 02:50:17,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-16 02:50:17,278 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-16 02:50:17,279 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-16 02:50:17,281 INFO L275 PluginConnector]: CDTParser initialized [2023-02-16 02:50:17,282 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2023-02-16 02:50:18,377 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-16 02:50:18,544 INFO L351 CDTParser]: Found 1 translation units. [2023-02-16 02:50:18,545 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/ps5-ll_valuebound5.c [2023-02-16 02:50:18,549 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6019f8d5b/94db856ce7f1481bbe2448eae32fab91/FLAG94826b22f [2023-02-16 02:50:18,941 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6019f8d5b/94db856ce7f1481bbe2448eae32fab91 [2023-02-16 02:50:18,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-16 02:50:18,944 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-16 02:50:18,945 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-16 02:50:18,945 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-16 02:50:18,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-16 02:50:18,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:50:18" (1/1) ... [2023-02-16 02:50:18,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fdceca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:18, skipping insertion in model container [2023-02-16 02:50:18,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.02 02:50:18" (1/1) ... [2023-02-16 02:50:18,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-16 02:50:18,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-16 02:50:19,072 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/ps5-ll_valuebound5.c[458,471] [2023-02-16 02:50:19,085 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:50:19,093 INFO L203 MainTranslator]: Completed pre-run [2023-02-16 02:50:19,103 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/ps5-ll_valuebound5.c[458,471] [2023-02-16 02:50:19,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-16 02:50:19,119 INFO L208 MainTranslator]: Completed translation [2023-02-16 02:50:19,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19 WrapperNode [2023-02-16 02:50:19,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-16 02:50:19,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-16 02:50:19,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-16 02:50:19,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-16 02:50:19,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,143 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2023-02-16 02:50:19,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-16 02:50:19,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-16 02:50:19,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-16 02:50:19,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-16 02:50:19,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,158 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-16 02:50:19,160 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-16 02:50:19,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-16 02:50:19,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-16 02:50:19,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (1/1) ... [2023-02-16 02:50:19,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-16 02:50:19,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:19,194 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) [2023-02-16 02:50:19,202 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 [2023-02-16 02:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-16 02:50:19,234 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-16 02:50:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-16 02:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-16 02:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-16 02:50:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-16 02:50:19,235 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-16 02:50:19,235 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-16 02:50:19,279 INFO L235 CfgBuilder]: Building ICFG [2023-02-16 02:50:19,280 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-16 02:50:19,393 INFO L276 CfgBuilder]: Performing block encoding [2023-02-16 02:50:19,398 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-16 02:50:19,398 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-16 02:50:19,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:50:19 BoogieIcfgContainer [2023-02-16 02:50:19,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-16 02:50:19,402 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-16 02:50:19,402 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-16 02:50:19,405 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-16 02:50:19,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.02 02:50:18" (1/3) ... [2023-02-16 02:50:19,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c00b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:50:19, skipping insertion in model container [2023-02-16 02:50:19,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.02 02:50:19" (2/3) ... [2023-02-16 02:50:19,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c00b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 02:50:19, skipping insertion in model container [2023-02-16 02:50:19,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:50:19" (3/3) ... [2023-02-16 02:50:19,407 INFO L112 eAbstractionObserver]: Analyzing ICFG ps5-ll_valuebound5.c [2023-02-16 02:50:19,421 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-16 02:50:19,422 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-16 02:50:19,457 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-16 02:50:19,463 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;@25e84285, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-16 02:50:19,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-16 02:50:19,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 02:50:19,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 02:50:19,473 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:19,474 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:19,474 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:19,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:19,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1845349065, now seen corresponding path program 1 times [2023-02-16 02:50:19,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:19,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620732157] [2023-02-16 02:50:19,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:19,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:50:19,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:19,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620732157] [2023-02-16 02:50:19,601 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-16 02:50:19,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212554202] [2023-02-16 02:50:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:19,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:19,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:19,613 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) [2023-02-16 02:50:19,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-16 02:50:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:50:19,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-16 02:50:19,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-16 02:50:19,697 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:50:19,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212554202] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:50:19,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:50:19,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-16 02:50:19,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130963475] [2023-02-16 02:50:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:50:19,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-16 02:50:19,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-16 02:50:19,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:50:19,745 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 02:50:19,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:50:19,779 INFO L93 Difference]: Finished difference Result 45 states and 63 transitions. [2023-02-16 02:50:19,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-16 02:50:19,797 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-02-16 02:50:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:50:19,803 INFO L225 Difference]: With dead ends: 45 [2023-02-16 02:50:19,803 INFO L226 Difference]: Without dead ends: 20 [2023-02-16 02:50:19,806 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-16 02:50:19,808 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-16 02:50:19,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-16 02:50:19,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-16 02:50:19,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2023-02-16 02:50:19,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-16 02:50:19,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2023-02-16 02:50:19,858 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 18 [2023-02-16 02:50:19,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:50:19,859 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2023-02-16 02:50:19,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-02-16 02:50:19,859 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-02-16 02:50:19,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-16 02:50:19,860 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:19,861 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:19,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-16 02:50:20,067 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 [2023-02-16 02:50:20,067 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:20,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:20,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1506842435, now seen corresponding path program 1 times [2023-02-16 02:50:20,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:20,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137361650] [2023-02-16 02:50:20,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:20,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:20,090 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:50:20,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1987377947] [2023-02-16 02:50:20,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:20,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:20,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:20,097 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) [2023-02-16 02:50:20,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-16 02:50:20,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:50:20,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-16 02:50:20,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:20,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-16 02:50:20,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-16 02:50:20,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:20,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137361650] [2023-02-16 02:50:20,296 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:50:20,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987377947] [2023-02-16 02:50:20,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987377947] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-16 02:50:20,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-16 02:50:20,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-02-16 02:50:20,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304551349] [2023-02-16 02:50:20,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-16 02:50:20,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-16 02:50:20,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:20,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-16 02:50:20,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-02-16 02:50:20,302 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 02:50:20,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:50:20,415 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2023-02-16 02:50:20,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-16 02:50:20,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-02-16 02:50:20,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:50:20,417 INFO L225 Difference]: With dead ends: 31 [2023-02-16 02:50:20,417 INFO L226 Difference]: Without dead ends: 27 [2023-02-16 02:50:20,419 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-02-16 02:50:20,421 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 8 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:50:20,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:50:20,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-02-16 02:50:20,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-02-16 02:50:20,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 02:50:20,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-02-16 02:50:20,440 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 18 [2023-02-16 02:50:20,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:50:20,441 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-02-16 02:50:20,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-16 02:50:20,442 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-02-16 02:50:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-16 02:50:20,443 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:20,443 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:20,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-16 02:50:20,648 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 [2023-02-16 02:50:20,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:20,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:20,649 INFO L85 PathProgramCache]: Analyzing trace with hash 903983968, now seen corresponding path program 1 times [2023-02-16 02:50:20,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:20,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11299584] [2023-02-16 02:50:20,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:20,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:20,667 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:50:20,667 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [200340307] [2023-02-16 02:50:20,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:20,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:20,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:20,669 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) [2023-02-16 02:50:20,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-16 02:50:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:50:20,723 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-16 02:50:20,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:20,842 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 02:50:20,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:50:20,983 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-02-16 02:50:20,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:20,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11299584] [2023-02-16 02:50:20,984 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:50:20,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200340307] [2023-02-16 02:50:20,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200340307] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:50:20,985 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:50:20,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11 [2023-02-16 02:50:20,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159637128] [2023-02-16 02:50:20,986 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:50:20,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-16 02:50:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:20,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-16 02:50:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2023-02-16 02:50:20,989 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:50:21,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:50:21,221 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2023-02-16 02:50:21,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 02:50:21,222 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 25 [2023-02-16 02:50:21,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:50:21,223 INFO L225 Difference]: With dead ends: 38 [2023-02-16 02:50:21,223 INFO L226 Difference]: Without dead ends: 34 [2023-02-16 02:50:21,223 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2023-02-16 02:50:21,224 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 18 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:50:21,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 89 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 02:50:21,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-02-16 02:50:21,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 29. [2023-02-16 02:50:21,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-16 02:50:21,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-02-16 02:50:21,234 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2023-02-16 02:50:21,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:50:21,235 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-02-16 02:50:21,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 10 states have internal predecessors, (23), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-16 02:50:21,235 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-02-16 02:50:21,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-02-16 02:50:21,236 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:21,236 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:21,244 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-16 02:50:21,441 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 [2023-02-16 02:50:21,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:21,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:21,443 INFO L85 PathProgramCache]: Analyzing trace with hash -1648043046, now seen corresponding path program 1 times [2023-02-16 02:50:21,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:21,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981164767] [2023-02-16 02:50:21,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:21,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:21,469 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:50:21,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1586267792] [2023-02-16 02:50:21,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:21,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:21,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:21,474 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) [2023-02-16 02:50:21,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-16 02:50:21,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-16 02:50:21,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-16 02:50:21,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-02-16 02:50:21,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:50:22,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:22,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981164767] [2023-02-16 02:50:22,269 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:50:22,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586267792] [2023-02-16 02:50:22,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586267792] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-16 02:50:22,270 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-02-16 02:50:22,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2023-02-16 02:50:22,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662482146] [2023-02-16 02:50:22,270 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-02-16 02:50:22,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-16 02:50:22,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:22,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-16 02:50:22,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2023-02-16 02:50:22,272 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 10 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 02:50:22,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:50:22,440 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2023-02-16 02:50:22,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-16 02:50:22,441 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 36 [2023-02-16 02:50:22,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:50:22,441 INFO L225 Difference]: With dead ends: 42 [2023-02-16 02:50:22,442 INFO L226 Difference]: Without dead ends: 36 [2023-02-16 02:50:22,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2023-02-16 02:50:22,442 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 12 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-16 02:50:22,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 101 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-16 02:50:22,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-02-16 02:50:22,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2023-02-16 02:50:22,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 24 states have (on average 1.0416666666666667) internal successors, (25), 24 states have internal predecessors, (25), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-02-16 02:50:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 38 transitions. [2023-02-16 02:50:22,451 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 38 transitions. Word has length 36 [2023-02-16 02:50:22,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:50:22,452 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 38 transitions. [2023-02-16 02:50:22,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 5 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-16 02:50:22,452 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 38 transitions. [2023-02-16 02:50:22,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-02-16 02:50:22,453 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:22,453 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:22,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-16 02:50:22,659 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 [2023-02-16 02:50:22,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:22,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:22,660 INFO L85 PathProgramCache]: Analyzing trace with hash -426505545, now seen corresponding path program 2 times [2023-02-16 02:50:22,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:22,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053536653] [2023-02-16 02:50:22,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:22,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:22,674 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:50:22,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371568700] [2023-02-16 02:50:22,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-16 02:50:22,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:22,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:22,686 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) [2023-02-16 02:50:22,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-16 02:50:22,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-16 02:50:22,771 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:50:22,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-16 02:50:22,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:22,935 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 11 proven. 9 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-02-16 02:50:22,935 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:50:23,154 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-02-16 02:50:23,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:23,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053536653] [2023-02-16 02:50:23,155 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:50:23,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371568700] [2023-02-16 02:50:23,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371568700] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:50:23,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:50:23,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 17 [2023-02-16 02:50:23,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281194257] [2023-02-16 02:50:23,156 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:50:23,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-02-16 02:50:23,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:23,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-02-16 02:50:23,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=225, Unknown=0, NotChecked=0, Total=272 [2023-02-16 02:50:23,158 INFO L87 Difference]: Start difference. First operand 36 states and 38 transitions. Second operand has 17 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 9 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-02-16 02:50:25,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:50:25,552 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2023-02-16 02:50:25,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-16 02:50:25,553 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 9 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) Word has length 43 [2023-02-16 02:50:25,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:50:25,554 INFO L225 Difference]: With dead ends: 55 [2023-02-16 02:50:25,554 INFO L226 Difference]: Without dead ends: 47 [2023-02-16 02:50:25,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=123, Invalid=527, Unknown=0, NotChecked=0, Total=650 [2023-02-16 02:50:25,555 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 19 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-16 02:50:25,556 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 209 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-16 02:50:25,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-16 02:50:25,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2023-02-16 02:50:25,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 5 states have call predecessors, (10), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-02-16 02:50:25,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2023-02-16 02:50:25,585 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 43 [2023-02-16 02:50:25,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:50:25,587 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2023-02-16 02:50:25,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 2.0) internal successors, (30), 14 states have internal predecessors, (30), 9 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 10 states have call predecessors, (11), 9 states have call successors, (11) [2023-02-16 02:50:25,592 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2023-02-16 02:50:25,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-02-16 02:50:25,596 INFO L187 NwaCegarLoop]: Found error trace [2023-02-16 02:50:25,596 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 6, 6, 6, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-16 02:50:25,607 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-16 02:50:25,801 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 [2023-02-16 02:50:25,802 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-16 02:50:25,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-16 02:50:25,802 INFO L85 PathProgramCache]: Analyzing trace with hash 66449050, now seen corresponding path program 3 times [2023-02-16 02:50:25,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-16 02:50:25,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592753988] [2023-02-16 02:50:25,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-16 02:50:25,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-16 02:50:25,815 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-16 02:50:25,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293643370] [2023-02-16 02:50:25,816 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-16 02:50:25,816 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-16 02:50:25,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-16 02:50:25,817 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) [2023-02-16 02:50:25,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-16 02:50:34,685 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-02-16 02:50:34,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-16 02:50:34,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-16 02:50:34,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-16 02:50:35,003 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 22 proven. 58 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-02-16 02:50:35,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-16 02:50:39,271 WARN L837 $PredicateComparison]: unable to prove that (or (= (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~k~0#1|) (* 3 |c_ULTIMATE.start_main_~k~0#1|)) (+ (* 6 |c_ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 9)) (not (< (+ |c_ULTIMATE.start_main_~c~0#1| 2) |c_ULTIMATE.start_main_~k~0#1|)) (not (= (mod (+ (* 10 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 15 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 29 |c_ULTIMATE.start_main_~y~0#1|) (* 6 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) 30) 0))) is different from false [2023-02-16 02:50:47,348 WARN L837 $PredicateComparison]: unable to prove that (or (not (< (+ |c_ULTIMATE.start_main_~c~0#1| 3) |c_ULTIMATE.start_main_~k~0#1|)) (not (= (mod (+ (* 10 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 15 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 29 |c_ULTIMATE.start_main_~y~0#1|) (* 6 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) 30) 0)) (= (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~k~0#1|) (* 4 |c_ULTIMATE.start_main_~k~0#1|)) (+ (* 8 |c_ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 16))) is different from false [2023-02-16 02:50:55,430 WARN L837 $PredicateComparison]: unable to prove that (or (not (= (mod (+ (* 10 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 15 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) (* 29 |c_ULTIMATE.start_main_~y~0#1|) (* 6 |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|)) 30) 0)) (= (+ (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~k~0#1|) (* 5 |c_ULTIMATE.start_main_~k~0#1|)) (+ (* 10 |c_ULTIMATE.start_main_~y~0#1|) (* |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~y~0#1|) 25)) (not (< (+ |c_ULTIMATE.start_main_~c~0#1| 4) |c_ULTIMATE.start_main_~k~0#1|))) is different from false [2023-02-16 02:50:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 67 trivial. 36 not checked. [2023-02-16 02:50:59,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-16 02:50:59,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592753988] [2023-02-16 02:50:59,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-16 02:50:59,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293643370] [2023-02-16 02:50:59,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293643370] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-16 02:50:59,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-16 02:50:59,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2023-02-16 02:50:59,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080453404] [2023-02-16 02:50:59,617 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-16 02:50:59,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-16 02:50:59,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-16 02:50:59,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-16 02:50:59,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=438, Unknown=3, NotChecked=132, Total=650 [2023-02-16 02:50:59,619 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 22 states have internal predecessors, (49), 15 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) [2023-02-16 02:51:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-16 02:51:00,033 INFO L93 Difference]: Finished difference Result 58 states and 65 transitions. [2023-02-16 02:51:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-16 02:51:00,033 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 22 states have internal predecessors, (49), 15 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) Word has length 64 [2023-02-16 02:51:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-16 02:51:00,034 INFO L225 Difference]: With dead ends: 58 [2023-02-16 02:51:00,034 INFO L226 Difference]: Without dead ends: 0 [2023-02-16 02:51:00,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 100 SyntacticMatches, 5 SemanticMatches, 28 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=106, Invalid=605, Unknown=3, NotChecked=156, Total=870 [2023-02-16 02:51:00,035 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 12 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 111 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-16 02:51:00,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 196 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 450 Invalid, 0 Unknown, 111 Unchecked, 0.3s Time] [2023-02-16 02:51:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-16 02:51:00,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-16 02:51:00,036 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) [2023-02-16 02:51:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-16 02:51:00,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 64 [2023-02-16 02:51:00,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-16 02:51:00,036 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-16 02:51:00,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.8846153846153846) internal successors, (49), 22 states have internal predecessors, (49), 15 states have call successors, (19), 3 states have call predecessors, (19), 3 states have return successors, (18), 14 states have call predecessors, (18), 15 states have call successors, (18) [2023-02-16 02:51:00,037 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-16 02:51:00,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-16 02:51:00,039 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-16 02:51:00,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-16 02:51:00,253 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 [2023-02-16 02:51:00,255 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-16 02:51:02,219 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-16 02:51:02,220 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (let ((.cse3 (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|))) (let ((.cse0 (or (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse3)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 5)) (.cse2 (= (+ |ULTIMATE.start_main_~y~0#1| (* 30 |ULTIMATE.start_main_~x~0#1|)) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 15 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 10 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)))))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 4) (= |ULTIMATE.start_main_~c~0#1| 4)) (and (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse1 (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~c~0#1| 0)) (and (= |ULTIMATE.start_main_~c~0#1| 3) (= |ULTIMATE.start_main_~y~0#1| 3) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~c~0#1| 2) .cse1 (< 1 |ULTIMATE.start_main_~k~0#1|) .cse2 (= |ULTIMATE.start_main_~y~0#1| 2)) (and (< 4 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~y~0#1| 5) .cse1 .cse2 (not .cse3))))) [2023-02-16 02:51:02,220 INFO L899 garLoopResultBuilder]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2023-02-16 02:51:02,220 INFO L902 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2023-02-16 02:51:02,220 INFO L895 garLoopResultBuilder]: At program point L21-1(line 21) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 5)) [2023-02-16 02:51:02,220 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-16 02:51:02,220 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 17 42) the Hoare annotation is: true [2023-02-16 02:51:02,220 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-02-16 02:51:02,220 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-16 02:51:02,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L895 garLoopResultBuilder]: At program point L28-2(lines 28 37) the Hoare annotation is: (let ((.cse3 (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|))) (let ((.cse0 (or (= (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|) (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) .cse3)) (.cse1 (<= |ULTIMATE.start_main_~k~0#1| 5)) (.cse2 (= (+ |ULTIMATE.start_main_~y~0#1| (* 30 |ULTIMATE.start_main_~x~0#1|)) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 15 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 10 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)))))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~y~0#1| 4) (= |ULTIMATE.start_main_~c~0#1| 4)) (and (= |ULTIMATE.start_main_~c~0#1| 1) (= |ULTIMATE.start_main_~y~0#1| 1) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~x~0#1| 0) (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse1 (= |ULTIMATE.start_main_~y~0#1| 0) (= |ULTIMATE.start_main_~c~0#1| 0)) (and (= |ULTIMATE.start_main_~c~0#1| 3) (= |ULTIMATE.start_main_~y~0#1| 3) .cse0 .cse1 .cse2) (and (= |ULTIMATE.start_main_~c~0#1| 2) .cse1 (< 1 |ULTIMATE.start_main_~k~0#1|) .cse2 (= |ULTIMATE.start_main_~y~0#1| 2)) (and (< 4 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~y~0#1| 5) .cse1 .cse2 (not .cse3))))) [2023-02-16 02:51:02,221 INFO L895 garLoopResultBuilder]: At program point L28-3(lines 28 37) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~x~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 0)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|)) (.cse1 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (< (+ |ULTIMATE.start_main_~c~0#1| 1) |ULTIMATE.start_main_~k~0#1|))) (and (= .cse0 .cse1) (<= |ULTIMATE.start_main_~k~0#1| 256) (= (+ |ULTIMATE.start_main_~y~0#1| (* 30 |ULTIMATE.start_main_~x~0#1|)) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 15 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 10 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (= (+ (* 2 |ULTIMATE.start_main_~k~0#1|) .cse0) (+ (* 4 |ULTIMATE.start_main_~y~0#1|) .cse1 4)) (not .cse2) (< (+ |ULTIMATE.start_main_~c~0#1| 2) |ULTIMATE.start_main_~k~0#1|)) (or (= (+ |ULTIMATE.start_main_~k~0#1| .cse0) (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse1 1)) .cse2 (not (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)))))) [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L895 garLoopResultBuilder]: At program point L39(line 39) the Hoare annotation is: (or (and (= |ULTIMATE.start_main_~x~0#1| 0) (= |ULTIMATE.start_main_~y~0#1| 0)) (let ((.cse0 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~k~0#1|)) (.cse1 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (.cse2 (< (+ |ULTIMATE.start_main_~c~0#1| 1) |ULTIMATE.start_main_~k~0#1|))) (and (= .cse0 .cse1) (<= |ULTIMATE.start_main_~k~0#1| 256) (= (+ |ULTIMATE.start_main_~y~0#1| (* 30 |ULTIMATE.start_main_~x~0#1|)) (+ (* 6 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 15 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)) (* 10 (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|)))) (or (= (+ (* 2 |ULTIMATE.start_main_~k~0#1|) .cse0) (+ (* 4 |ULTIMATE.start_main_~y~0#1|) .cse1 4)) (not .cse2) (< (+ |ULTIMATE.start_main_~c~0#1| 2) |ULTIMATE.start_main_~k~0#1|)) (or (= (+ |ULTIMATE.start_main_~k~0#1| .cse0) (+ (* 2 |ULTIMATE.start_main_~y~0#1|) .cse1 1)) .cse2 (not (< |ULTIMATE.start_main_~c~0#1| |ULTIMATE.start_main_~k~0#1|)))))) [2023-02-16 02:51:02,221 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 6 8) the Hoare annotation is: true [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2023-02-16 02:51:02,221 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2023-02-16 02:51:02,222 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: true [2023-02-16 02:51:02,222 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2023-02-16 02:51:02,222 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2023-02-16 02:51:02,224 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1] [2023-02-16 02:51:02,225 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-16 02:51:02,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 02:51:02 BoogieIcfgContainer [2023-02-16 02:51:02,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-16 02:51:02,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-16 02:51:02,239 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-16 02:51:02,239 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-16 02:51:02,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 02:50:19" (3/4) ... [2023-02-16 02:51:02,242 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-16 02:51:02,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-16 02:51:02,247 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-16 02:51:02,249 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-02-16 02:51:02,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-02-16 02:51:02,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-02-16 02:51:02,250 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-16 02:51:02,277 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-16 02:51:02,278 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-16 02:51:02,278 INFO L158 Benchmark]: Toolchain (without parser) took 43333.91ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 83.1MB in the beginning and 128.9MB in the end (delta: -45.8MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,278 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-16 02:51:02,279 INFO L158 Benchmark]: CACSL2BoogieTranslator took 174.19ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 72.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.22ms. Allocated memory is still 127.9MB. Free memory was 72.5MB in the beginning and 70.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,279 INFO L158 Benchmark]: Boogie Preprocessor took 15.95ms. Allocated memory is still 127.9MB. Free memory was 70.9MB in the beginning and 69.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,279 INFO L158 Benchmark]: RCFGBuilder took 239.71ms. Allocated memory is still 127.9MB. Free memory was 69.4MB in the beginning and 59.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,280 INFO L158 Benchmark]: TraceAbstraction took 42836.93ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 58.4MB in the beginning and 132.1MB in the end (delta: -73.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,280 INFO L158 Benchmark]: Witness Printer took 38.60ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 128.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-16 02:51:02,282 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 127.9MB. Free memory was 96.8MB in the beginning and 96.8MB in the end (delta: 30.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 174.19ms. Allocated memory is still 127.9MB. Free memory was 82.5MB in the beginning and 72.5MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.22ms. Allocated memory is still 127.9MB. Free memory was 72.5MB in the beginning and 70.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.95ms. Allocated memory is still 127.9MB. Free memory was 70.9MB in the beginning and 69.9MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.71ms. Allocated memory is still 127.9MB. Free memory was 69.4MB in the beginning and 59.4MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 42836.93ms. Allocated memory was 127.9MB in the beginning and 178.3MB in the end (delta: 50.3MB). Free memory was 58.4MB in the beginning and 132.1MB in the end (delta: -73.7MB). Peak memory consumption was 66.2MB. Max. memory is 16.1GB. * Witness Printer took 38.60ms. Allocated memory is still 178.3MB. Free memory was 132.1MB in the beginning and 128.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.8s, OverallIterations: 6, TraceHistogramMax: 8, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 69 mSDsluCounter, 699 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 111 IncrementalHoareTripleChecker+Unchecked, 566 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 960 IncrementalHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 133 mSDtfsCounter, 960 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 274 SyntacticMatches, 7 SemanticMatches, 87 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=5, 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, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 32 PreInvPairs, 56 NumberOfFragments, 703 HoareAnnotationTreeSize, 32 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 879 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 9.0s SatisfiabilityAnalysisTime, 26.5s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 327 ConstructedInterpolants, 0 QuantifiedInterpolants, 1897 SizeOfPredicates, 23 NumberOfNonLiveVariables, 576 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 291/433 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: 17]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (((((((((y * k == y * y || c < k) && k <= 5) && y + 30 * x == 6 * (y * y * y * y * y) + 15 * (y * y * y * y) + 10 * (y * y * y)) && y == 4) && c == 4) || ((((c == 1 && y == 1) && (y * k == y * y || c < k)) && k <= 5) && y + 30 * x == 6 * (y * y * y * y * y) + 15 * (y * y * y * y) + 10 * (y * y * y))) || ((((x == 0 && 0 <= k) && k <= 5) && y == 0) && c == 0)) || ((((c == 3 && y == 3) && (y * k == y * y || c < k)) && k <= 5) && y + 30 * x == 6 * (y * y * y * y * y) + 15 * (y * y * y * y) + 10 * (y * y * y))) || ((((c == 2 && k <= 5) && 1 < k) && y + 30 * x == 6 * (y * y * y * y * y) + 15 * (y * y * y * y) + 10 * (y * y * y)) && y == 2)) || ((((4 < k && y == 5) && k <= 5) && y + 30 * x == 6 * (y * y * y * y * y) + 15 * (y * y * y * y) + 10 * (y * y * y)) && !(c < k)) RESULT: Ultimate proved your program to be correct! [2023-02-16 02:51:02,316 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