./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.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 f07dfd29134e87fb8840c55cea4fca74cbf39cfbb92d83a07db93f4706876200 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 19:00:54,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 19:00:54,821 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 19:00:54,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 19:00:54,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 19:00:54,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 19:00:54,856 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 19:00:54,858 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 19:00:54,860 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 19:00:54,865 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 19:00:54,866 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 19:00:54,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 19:00:54,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 19:00:54,869 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 19:00:54,870 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 19:00:54,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 19:00:54,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 19:00:54,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 19:00:54,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 19:00:54,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 19:00:54,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 19:00:54,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 19:00:54,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 19:00:54,881 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 19:00:54,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 19:00:54,885 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 19:00:54,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 19:00:54,886 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 19:00:54,886 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 19:00:54,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 19:00:54,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 19:00:54,888 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 19:00:54,889 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 19:00:54,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 19:00:54,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 19:00:54,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 19:00:54,890 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 19:00:54,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 19:00:54,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 19:00:54,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 19:00:54,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 19:00:54,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-18 19:00:54,929 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 19:00:54,929 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 19:00:54,929 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 19:00:54,929 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 19:00:54,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 19:00:54,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 19:00:54,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 19:00:54,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 19:00:54,931 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 19:00:54,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 19:00:54,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 19:00:54,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 19:00:54,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:00:54,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 19:00:54,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 19:00:54,935 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 19:00:54,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 19:00:54,935 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 19:00:54,935 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07dfd29134e87fb8840c55cea4fca74cbf39cfbb92d83a07db93f4706876200 [2023-02-18 19:00:55,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 19:00:55,163 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 19:00:55,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 19:00:55,166 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 19:00:55,166 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 19:00:55,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c [2023-02-18 19:00:56,133 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 19:00:56,278 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 19:00:56,278 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c [2023-02-18 19:00:56,284 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c80a442a/7b02d7609d464202be58d6f3ef164b9f/FLAG1cd195665 [2023-02-18 19:00:56,700 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c80a442a/7b02d7609d464202be58d6f3ef164b9f [2023-02-18 19:00:56,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 19:00:56,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 19:00:56,703 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 19:00:56,703 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 19:00:56,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 19:00:56,723 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,724 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b4a912 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56, skipping insertion in model container [2023-02-18 19:00:56,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 19:00:56,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 19:00:56,871 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/lcm2_valuebound50.c[537,550] [2023-02-18 19:00:56,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:00:56,896 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 19:00:56,907 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/lcm2_valuebound50.c[537,550] [2023-02-18 19:00:56,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:00:56,929 INFO L208 MainTranslator]: Completed translation [2023-02-18 19:00:56,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56 WrapperNode [2023-02-18 19:00:56,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 19:00:56,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 19:00:56,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 19:00:56,931 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 19:00:56,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,957 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-02-18 19:00:56,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 19:00:56,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 19:00:56,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 19:00:56,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 19:00:56,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,982 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 19:00:56,988 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 19:00:56,988 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 19:00:56,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 19:00:56,989 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (1/1) ... [2023-02-18 19:00:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:00:56,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:00:57,009 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 19:00:57,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 19:00:57,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 19:00:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 19:00:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 19:00:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 19:00:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 19:00:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 19:00:57,040 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 19:00:57,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 19:00:57,082 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 19:00:57,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 19:00:57,225 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 19:00:57,229 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 19:00:57,229 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 19:00:57,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:00:57 BoogieIcfgContainer [2023-02-18 19:00:57,231 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 19:00:57,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 19:00:57,232 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 19:00:57,234 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 19:00:57,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:00:56" (1/3) ... [2023-02-18 19:00:57,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a002ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:00:57, skipping insertion in model container [2023-02-18 19:00:57,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:00:56" (2/3) ... [2023-02-18 19:00:57,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a002ab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:00:57, skipping insertion in model container [2023-02-18 19:00:57,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:00:57" (3/3) ... [2023-02-18 19:00:57,236 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound50.c [2023-02-18 19:00:57,248 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 19:00:57,248 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 19:00:57,308 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 19:00:57,312 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;@624b896e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 19:00:57,313 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 19:00:57,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-18 19:00:57,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 19:00:57,321 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:00:57,322 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:00:57,322 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:00:57,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:00:57,325 INFO L85 PathProgramCache]: Analyzing trace with hash 887431403, now seen corresponding path program 1 times [2023-02-18 19:00:57,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:00:57,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281623601] [2023-02-18 19:00:57,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:57,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:00:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:00:57,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:00:57,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281623601] [2023-02-18 19:00:57,452 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-02-18 19:00:57,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053273287] [2023-02-18 19:00:57,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:57,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:00:57,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:00:57,471 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:00:57,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 19:00:57,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:00:57,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 19:00:57,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:00:57,567 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-18 19:00:57,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 19:00:57,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053273287] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 19:00:57,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 19:00:57,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 19:00:57,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741093719] [2023-02-18 19:00:57,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 19:00:57,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 19:00:57,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:00:57,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 19:00:57,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 19:00:57,611 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 19:00:57,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:00:57,637 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions. [2023-02-18 19:00:57,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 19:00:57,640 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2023-02-18 19:00:57,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:00:57,646 INFO L225 Difference]: With dead ends: 55 [2023-02-18 19:00:57,646 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 19:00:57,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 19:00:57,652 INFO L413 NwaCegarLoop]: 36 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, 36 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 [2023-02-18 19:00:57,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 19:00:57,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 19:00:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 19:00:57,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 19:00:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-18 19:00:57,683 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 39 [2023-02-18 19:00:57,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:00:57,683 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-18 19:00:57,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2023-02-18 19:00:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-18 19:00:57,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 19:00:57,687 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:00:57,688 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:00:57,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 19:00:57,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-02-18 19:00:57,896 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:00:57,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:00:57,899 INFO L85 PathProgramCache]: Analyzing trace with hash -722599373, now seen corresponding path program 1 times [2023-02-18 19:00:57,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:00:57,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527506056] [2023-02-18 19:00:57,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:57,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:00:57,923 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 19:00:57,923 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1981275037] [2023-02-18 19:00:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:57,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:00:57,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:00:57,925 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:00:57,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 19:00:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:00:58,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 19:00:58,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:00:58,126 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-02-18 19:00:58,126 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 19:00:58,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 19:00:58,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527506056] [2023-02-18 19:00:58,129 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-02-18 19:00:58,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981275037] [2023-02-18 19:00:58,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981275037] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 19:00:58,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 19:00:58,132 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-18 19:00:58,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895582452] [2023-02-18 19:00:58,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 19:00:58,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 19:00:58,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 19:00:58,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 19:00:58,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-02-18 19:00:58,135 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:00:58,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:00:58,306 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2023-02-18 19:00:58,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-18 19:00:58,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-02-18 19:00:58,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:00:58,309 INFO L225 Difference]: With dead ends: 38 [2023-02-18 19:00:58,309 INFO L226 Difference]: Without dead ends: 35 [2023-02-18 19:00:58,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-02-18 19:00:58,311 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 19:00:58,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 78 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 19:00:58,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-18 19:00:58,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2023-02-18 19:00:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-18 19:00:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-18 19:00:58,321 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 39 [2023-02-18 19:00:58,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:00:58,322 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-18 19:00:58,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 6 states have internal predecessors, (14), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:00:58,323 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-18 19:00:58,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 19:00:58,326 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:00:58,326 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:00:58,333 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-18 19:00:58,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-02-18 19:00:58,535 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:00:58,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:00:58,536 INFO L85 PathProgramCache]: Analyzing trace with hash 1459116230, now seen corresponding path program 1 times [2023-02-18 19:00:58,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 19:00:58,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958177512] [2023-02-18 19:00:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 19:00:58,564 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-02-18 19:00:58,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2012394667] [2023-02-18 19:00:58,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:00:58,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:00:58,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:00:58,566 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 19:00:58,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 19:00:58,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-02-18 19:00:58,659 WARN L124 FreeRefinementEngine]: Strategy CAMEL was unsuccessful and could not determine trace feasibility [2023-02-18 19:00:58,659 INFO L360 BasicCegarLoop]: Counterexample might be feasible [2023-02-18 19:00:58,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 19:00:58,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-18 19:00:58,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 19:00:58,869 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-02-18 19:00:58,870 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 19:00:58,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 07:00:58 BoogieIcfgContainer [2023-02-18 19:00:58,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 19:00:58,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 19:00:58,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 19:00:58,883 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 19:00:58,883 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:00:57" (3/4) ... [2023-02-18 19:00:58,886 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-02-18 19:00:58,886 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 19:00:58,889 INFO L158 Benchmark]: Toolchain (without parser) took 2183.92ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 79.2MB in the beginning and 59.6MB in the end (delta: 19.5MB). Peak memory consumption was 44.8MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,890 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 19:00:58,890 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.10ms. Allocated memory is still 113.2MB. Free memory was 79.2MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.51ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 66.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,891 INFO L158 Benchmark]: Boogie Preprocessor took 29.20ms. Allocated memory is still 113.2MB. Free memory was 66.9MB in the beginning and 65.9MB in the end (delta: 992.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,893 INFO L158 Benchmark]: RCFGBuilder took 243.02ms. Allocated memory is still 113.2MB. Free memory was 65.9MB in the beginning and 55.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,893 INFO L158 Benchmark]: TraceAbstraction took 1650.03ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 59.6MB in the end (delta: -5.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-02-18 19:00:58,893 INFO L158 Benchmark]: Witness Printer took 3.18ms. Allocated memory is still 136.3MB. Free memory is still 59.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 19:00:58,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 113.2MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.10ms. Allocated memory is still 113.2MB. Free memory was 79.2MB in the beginning and 68.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.51ms. Allocated memory is still 113.2MB. Free memory was 68.4MB in the beginning and 66.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.20ms. Allocated memory is still 113.2MB. Free memory was 66.9MB in the beginning and 65.9MB in the end (delta: 992.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 243.02ms. Allocated memory is still 113.2MB. Free memory was 65.9MB in the beginning and 55.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1650.03ms. Allocated memory was 113.2MB in the beginning and 136.3MB in the end (delta: 23.1MB). Free memory was 54.6MB in the beginning and 59.6MB in the end (delta: -5.0MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Witness Printer took 3.18ms. Allocated memory is still 136.3MB. Free memory is still 59.6MB. There was no memory consumed. 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 - UnprovableResult [Line: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L20] unsigned a, b; [L21] unsigned x, y, u, v; [L22] a = __VERIFIER_nondet_uint() [L23] CALL assume_abort_if_not(a>=0 && a<=50) [L9] COND FALSE !(!cond) [L23] RET assume_abort_if_not(a>=0 && a<=50) [L24] b = __VERIFIER_nondet_uint() [L25] CALL assume_abort_if_not(b>=0 && b<=50) [L9] COND FALSE !(!cond) [L25] RET assume_abort_if_not(b>=0 && b<=50) [L26] CALL assume_abort_if_not(a >= 1) [L9] COND FALSE !(!cond) [L26] RET assume_abort_if_not(a >= 1) [L27] CALL assume_abort_if_not(b >= 1) [L9] COND FALSE !(!cond) [L27] RET assume_abort_if_not(b >= 1) [L29] CALL assume_abort_if_not(a <= 65535) [L9] COND FALSE !(!cond) [L29] RET assume_abort_if_not(a <= 65535) [L30] CALL assume_abort_if_not(b <= 65535) [L9] COND FALSE !(!cond) [L30] RET assume_abort_if_not(b <= 65535) [L32] x = a [L33] y = b [L34] u = b [L35] v = a [L37] COND TRUE 1 [L38] CALL __VERIFIER_assert(x*u + y*v == 2*a*b) [L12] COND FALSE !(!(cond)) [L38] RET __VERIFIER_assert(x*u + y*v == 2*a*b) [L40] COND FALSE !(!(x != y)) [L43] COND TRUE x > y [L44] x = x - y [L45] v = v + u [L37] COND TRUE 1 [L38] CALL __VERIFIER_assert(x*u + y*v == 2*a*b) [L12] COND TRUE !(cond) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17 mSDsluCounter, 114 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 54 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 SizeOfPredicates, 3 NumberOfNonLiveVariables, 228 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 120/120 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-02-18 19:00:58,922 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/lcm2_valuebound50.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 f07dfd29134e87fb8840c55cea4fca74cbf39cfbb92d83a07db93f4706876200 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 19:01:00,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 19:01:00,753 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 19:01:00,780 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 19:01:00,781 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 19:01:00,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 19:01:00,782 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 19:01:00,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 19:01:00,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 19:01:00,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 19:01:00,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 19:01:00,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 19:01:00,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 19:01:00,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 19:01:00,793 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 19:01:00,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 19:01:00,796 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 19:01:00,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 19:01:00,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 19:01:00,803 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 19:01:00,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 19:01:00,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 19:01:00,809 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 19:01:00,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 19:01:00,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 19:01:00,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 19:01:00,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 19:01:00,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 19:01:00,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 19:01:00,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 19:01:00,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 19:01:00,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 19:01:00,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 19:01:00,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 19:01:00,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 19:01:00,824 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 19:01:00,827 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 19:01:00,827 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 19:01:00,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 19:01:00,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 19:01:00,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 19:01:00,829 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-02-18 19:01:00,857 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 19:01:00,858 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 19:01:00,859 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 19:01:00,859 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 19:01:00,860 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 19:01:00,860 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 19:01:00,861 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 19:01:00,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 19:01:00,861 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 19:01:00,862 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 19:01:00,862 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 19:01:00,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2023-02-18 19:01:00,863 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-02-18 19:01:00,864 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 19:01:00,864 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 19:01:00,864 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 19:01:00,864 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 19:01:00,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 19:01:00,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:01:00,865 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2023-02-18 19:01:00,865 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2023-02-18 19:01:00,866 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 19:01:00,867 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f07dfd29134e87fb8840c55cea4fca74cbf39cfbb92d83a07db93f4706876200 [2023-02-18 19:01:01,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 19:01:01,122 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 19:01:01,124 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 19:01:01,125 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 19:01:01,125 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 19:01:01,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c [2023-02-18 19:01:02,091 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 19:01:02,260 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 19:01:02,260 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c [2023-02-18 19:01:02,264 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6839c6fc7/52e10a83467f40f8be329d5717d0682c/FLAG12f279542 [2023-02-18 19:01:02,275 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6839c6fc7/52e10a83467f40f8be329d5717d0682c [2023-02-18 19:01:02,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 19:01:02,281 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 19:01:02,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 19:01:02,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 19:01:02,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 19:01:02,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc5cec6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02, skipping insertion in model container [2023-02-18 19:01:02,287 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 19:01:02,308 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 19:01:02,405 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm2_valuebound50.c[537,550] [2023-02-18 19:01:02,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:01:02,422 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 19:01:02,430 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/lcm2_valuebound50.c[537,550] [2023-02-18 19:01:02,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 19:01:02,443 INFO L208 MainTranslator]: Completed translation [2023-02-18 19:01:02,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02 WrapperNode [2023-02-18 19:01:02,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 19:01:02,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 19:01:02,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 19:01:02,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 19:01:02,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,455 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,466 INFO L138 Inliner]: procedures = 14, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-02-18 19:01:02,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 19:01:02,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 19:01:02,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 19:01:02,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 19:01:02,472 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,473 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,480 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,481 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 19:01:02,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 19:01:02,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 19:01:02,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 19:01:02,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (1/1) ... [2023-02-18 19:01:02,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 19:01:02,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 19:01:02,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 19:01:02,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 19:01:02,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 19:01:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-02-18 19:01:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-02-18 19:01:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-02-18 19:01:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 19:01:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 19:01:02,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-18 19:01:02,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-18 19:01:02,575 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 19:01:02,577 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 19:01:02,720 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 19:01:02,724 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 19:01:02,724 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 19:01:02,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:01:02 BoogieIcfgContainer [2023-02-18 19:01:02,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 19:01:02,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 19:01:02,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 19:01:02,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 19:01:02,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:01:02" (1/3) ... [2023-02-18 19:01:02,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283c9884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:01:02, skipping insertion in model container [2023-02-18 19:01:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:01:02" (2/3) ... [2023-02-18 19:01:02,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@283c9884 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:01:02, skipping insertion in model container [2023-02-18 19:01:02,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:01:02" (3/3) ... [2023-02-18 19:01:02,731 INFO L112 eAbstractionObserver]: Analyzing ICFG lcm2_valuebound50.c [2023-02-18 19:01:02,742 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 19:01:02,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-18 19:01:02,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 19:01:02,777 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;@7b28f61d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 19:01:02,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-18 19:01:02,780 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-18 19:01:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 19:01:02,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:01:02,786 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:01:02,786 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:01:02,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:01:02,790 INFO L85 PathProgramCache]: Analyzing trace with hash 887431403, now seen corresponding path program 1 times [2023-02-18 19:01:02,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 19:01:02,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [221903243] [2023-02-18 19:01:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:01:02,799 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:02,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 19:01:02,802 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 19:01:02,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-02-18 19:01:02,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:01:02,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 1 conjunts are in the unsatisfiable core [2023-02-18 19:01:02,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:01:02,945 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2023-02-18 19:01:02,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 19:01:02,946 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 19:01:02,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [221903243] [2023-02-18 19:01:02,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [221903243] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 19:01:02,949 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 19:01:02,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 19:01:02,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296675467] [2023-02-18 19:01:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 19:01:02,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-18 19:01:02,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 19:01:02,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-18 19:01:02,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 19:01:02,992 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.411764705882353) internal successors, (24), 18 states have internal predecessors, (24), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:01:03,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:01:03,014 INFO L93 Difference]: Finished difference Result 55 states and 84 transitions. [2023-02-18 19:01:03,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-18 19:01:03,016 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-02-18 19:01:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:01:03,020 INFO L225 Difference]: With dead ends: 55 [2023-02-18 19:01:03,032 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 19:01:03,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-18 19:01:03,037 INFO L413 NwaCegarLoop]: 36 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, 36 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 [2023-02-18 19:01:03,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 19:01:03,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 19:01:03,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-02-18 19:01:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2023-02-18 19:01:03,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2023-02-18 19:01:03,076 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 39 [2023-02-18 19:01:03,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:01:03,077 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2023-02-18 19:01:03,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:01:03,078 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2023-02-18 19:01:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-18 19:01:03,081 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:01:03,082 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:01:03,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-02-18 19:01:03,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:03,298 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:01:03,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:01:03,298 INFO L85 PathProgramCache]: Analyzing trace with hash -722599373, now seen corresponding path program 1 times [2023-02-18 19:01:03,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 19:01:03,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1860369460] [2023-02-18 19:01:03,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:01:03,299 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:03,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 19:01:03,301 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 19:01:03,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-02-18 19:01:03,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:01:03,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-18 19:01:03,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:01:04,227 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 19:01:04,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:01:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-18 19:01:04,855 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 19:01:04,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1860369460] [2023-02-18 19:01:04,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1860369460] provided 1 perfect and 1 imperfect interpolant sequences [2023-02-18 19:01:04,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 19:01:04,856 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2023-02-18 19:01:04,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508772371] [2023-02-18 19:01:04,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 19:01:04,857 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 19:01:04,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 19:01:04,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 19:01:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-18 19:01:04,858 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:01:07,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:09,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:09,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:01:09,947 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2023-02-18 19:01:09,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 19:01:09,952 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 39 [2023-02-18 19:01:09,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:01:09,954 INFO L225 Difference]: With dead ends: 36 [2023-02-18 19:01:09,954 INFO L226 Difference]: Without dead ends: 33 [2023-02-18 19:01:09,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2023-02-18 19:01:09,955 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-02-18 19:01:09,955 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 88 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 2 Unknown, 0 Unchecked, 5.0s Time] [2023-02-18 19:01:09,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2023-02-18 19:01:09,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2023-02-18 19:01:09,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 20 states have internal predecessors, (22), 9 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-02-18 19:01:09,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2023-02-18 19:01:09,961 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 39 [2023-02-18 19:01:09,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:01:09,962 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2023-02-18 19:01:09,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2023-02-18 19:01:09,962 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2023-02-18 19:01:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-02-18 19:01:09,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:01:09,963 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:01:09,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-02-18 19:01:10,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:10,164 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:01:10,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:01:10,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1459116230, now seen corresponding path program 1 times [2023-02-18 19:01:10,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 19:01:10,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [580984450] [2023-02-18 19:01:10,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:01:10,165 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:10,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 19:01:10,166 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 19:01:10,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-02-18 19:01:10,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:01:10,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-18 19:01:10,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:01:11,211 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 1 proven. 27 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-18 19:01:11,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:01:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-02-18 19:01:15,027 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 19:01:15,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [580984450] [2023-02-18 19:01:15,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [580984450] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:01:15,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 19:01:15,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 7] total 19 [2023-02-18 19:01:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034902911] [2023-02-18 19:01:15,028 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 19:01:15,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-18 19:01:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 19:01:15,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-18 19:01:15,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2023-02-18 19:01:15,029 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 19 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-18 19:01:19,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:25,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:25,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:01:25,570 INFO L93 Difference]: Finished difference Result 48 states and 59 transitions. [2023-02-18 19:01:25,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-18 19:01:25,578 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) Word has length 47 [2023-02-18 19:01:25,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:01:25,580 INFO L225 Difference]: With dead ends: 48 [2023-02-18 19:01:25,580 INFO L226 Difference]: Without dead ends: 44 [2023-02-18 19:01:25,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 66 SyntacticMatches, 10 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2023-02-18 19:01:25,581 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 44 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-02-18 19:01:25,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 104 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 331 Invalid, 1 Unknown, 0 Unchecked, 9.2s Time] [2023-02-18 19:01:25,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2023-02-18 19:01:25,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2023-02-18 19:01:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 28 states have internal predecessors, (31), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2023-02-18 19:01:25,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2023-02-18 19:01:25,592 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 47 [2023-02-18 19:01:25,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:01:25,592 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2023-02-18 19:01:25,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 1.7647058823529411) internal successors, (30), 15 states have internal predecessors, (30), 8 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 7 states have call predecessors, (14), 6 states have call successors, (14) [2023-02-18 19:01:25,593 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2023-02-18 19:01:25,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-02-18 19:01:25,594 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 19:01:25,595 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 19:01:25,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2023-02-18 19:01:25,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:25,803 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-18 19:01:25,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 19:01:25,804 INFO L85 PathProgramCache]: Analyzing trace with hash 381530325, now seen corresponding path program 1 times [2023-02-18 19:01:25,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-02-18 19:01:25,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1522794753] [2023-02-18 19:01:25,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 19:01:25,804 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:25,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-02-18 19:01:25,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-02-18 19:01:25,808 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-02-18 19:01:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 19:01:26,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-18 19:01:26,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 19:01:28,159 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-02-18 19:01:28,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 19:01:34,237 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-02-18 19:01:34,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-02-18 19:01:34,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1522794753] [2023-02-18 19:01:34,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1522794753] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 19:01:34,238 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-02-18 19:01:34,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 8] total 22 [2023-02-18 19:01:34,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332592603] [2023-02-18 19:01:34,238 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-02-18 19:01:34,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-18 19:01:34,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-02-18 19:01:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-18 19:01:34,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=370, Unknown=0, NotChecked=0, Total=462 [2023-02-18 19:01:34,240 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 22 states, 20 states have (on average 1.9) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2023-02-18 19:01:43,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:45,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:47,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-18 19:01:49,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 19:01:49,003 INFO L93 Difference]: Finished difference Result 58 states and 71 transitions. [2023-02-18 19:01:49,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-18 19:01:49,005 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 1.9) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) Word has length 55 [2023-02-18 19:01:49,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 19:01:49,005 INFO L225 Difference]: With dead ends: 58 [2023-02-18 19:01:49,005 INFO L226 Difference]: Without dead ends: 0 [2023-02-18 19:01:49,006 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 10 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=125, Invalid=525, Unknown=0, NotChecked=0, Total=650 [2023-02-18 19:01:49,007 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 29 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 16 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-02-18 19:01:49,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 116 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 387 Invalid, 3 Unknown, 0 Unchecked, 12.3s Time] [2023-02-18 19:01:49,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-02-18 19:01:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-02-18 19:01:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 19:01:49,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-02-18 19:01:49,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 55 [2023-02-18 19:01:49,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 19:01:49,008 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-02-18 19:01:49,008 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 1.9) internal successors, (38), 17 states have internal predecessors, (38), 9 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (16), 8 states have call predecessors, (16), 7 states have call successors, (16) [2023-02-18 19:01:49,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-02-18 19:01:49,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-02-18 19:01:49,010 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-02-18 19:01:49,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-02-18 19:01:49,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-02-18 19:01:49,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-02-18 19:01:49,220 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-02-18 19:01:49,220 INFO L895 garLoopResultBuilder]: At program point L29(line 29) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32))) [2023-02-18 19:01:49,220 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32))) [2023-02-18 19:01:49,220 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) [2023-02-18 19:01:49,220 INFO L895 garLoopResultBuilder]: At program point L25-1(line 25) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32))) [2023-02-18 19:01:49,220 INFO L902 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: true [2023-02-18 19:01:49,231 INFO L899 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2023-02-18 19:01:49,231 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-02-18 19:01:49,231 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-02-18 19:01:49,231 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 19 57) the Hoare annotation is: true [2023-02-18 19:01:49,232 INFO L895 garLoopResultBuilder]: At program point L38(line 38) the Hoare annotation is: (let ((.cse17 (bvneg |ULTIMATE.start_main_~x~0#1|))) (let ((.cse5 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse13 (bvadd |ULTIMATE.start_main_~b~0#1| .cse17)) (.cse3 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32))) (.cse4 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) (.cse7 (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32))) (.cse8 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32))) (.cse9 (= (bvadd (bvmul |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~v~0#1|)) (bvmul (bvmul (_ bv2 32) |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|))) (.cse15 (not (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse10 (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse0 (= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (.cse14 (bvadd |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|)) (.cse16 (not (bvugt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse6 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (let ((.cse11 (bvadd (bvmul (bvneg |ULTIMATE.start_main_~y~0#1|) (_ bv4294967295 32)) |ULTIMATE.start_main_~x~0#1|))) (and (= .cse11 |ULTIMATE.start_main_~a~0#1|) .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~v~0#1| (bvadd |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~u~0#1|)) .cse7 .cse8 (bvugt .cse11 |ULTIMATE.start_main_~y~0#1|) .cse9 .cse1 .cse2 (not (= .cse11 |ULTIMATE.start_main_~y~0#1|)) .cse6)) (let ((.cse12 (bvadd |ULTIMATE.start_main_~y~0#1| (bvmul .cse17 (_ bv4294967295 32))))) (and (= .cse12 .cse13) (not (bvugt |ULTIMATE.start_main_~x~0#1| .cse12)) .cse3 .cse4 (= (bvadd |ULTIMATE.start_main_~u~0#1| (bvmul |ULTIMATE.start_main_~v~0#1| (_ bv4294967295 32))) .cse14) (not (= |ULTIMATE.start_main_~x~0#1| .cse12)) .cse7 .cse8 .cse15 .cse10 .cse0 .cse1 .cse16 .cse6)) (and .cse1 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9) (and (= |ULTIMATE.start_main_~y~0#1| .cse13) .cse3 .cse4 .cse7 .cse8 .cse9 .cse15 .cse10 .cse0 .cse1 (= |ULTIMATE.start_main_~u~0#1| .cse14) .cse16 .cse6)))) [2023-02-18 19:01:49,232 INFO L899 garLoopResultBuilder]: For program point L38-1(lines 37 50) no Hoare annotation was computed. [2023-02-18 19:01:49,232 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2023-02-18 19:01:49,232 INFO L899 garLoopResultBuilder]: For program point L30(line 30) no Hoare annotation was computed. [2023-02-18 19:01:49,232 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-02-18 19:01:49,233 INFO L895 garLoopResultBuilder]: At program point L26(line 26) the Hoare annotation is: (and (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32)) (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32)) (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)) (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32))) [2023-02-18 19:01:49,233 INFO L899 garLoopResultBuilder]: For program point L43(lines 43 49) no Hoare annotation was computed. [2023-02-18 19:01:49,234 INFO L895 garLoopResultBuilder]: At program point L43-2(lines 37 50) the Hoare annotation is: (let ((.cse17 (bvneg |ULTIMATE.start_main_~x~0#1|))) (let ((.cse5 (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse2 (= |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~b~0#1|)) (.cse13 (bvadd |ULTIMATE.start_main_~b~0#1| .cse17)) (.cse3 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32))) (.cse4 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) (.cse7 (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32))) (.cse8 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32))) (.cse9 (= (bvadd (bvmul |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~v~0#1|)) (bvmul (bvmul (_ bv2 32) |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|))) (.cse15 (not (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse10 (= |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse0 (= |ULTIMATE.start_main_~v~0#1| |ULTIMATE.start_main_~a~0#1|)) (.cse1 (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (.cse14 (bvadd |ULTIMATE.start_main_~b~0#1| |ULTIMATE.start_main_~v~0#1|)) (.cse16 (not (bvugt |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~b~0#1|))) (.cse6 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (let ((.cse11 (bvadd (bvmul (bvneg |ULTIMATE.start_main_~y~0#1|) (_ bv4294967295 32)) |ULTIMATE.start_main_~x~0#1|))) (and (= .cse11 |ULTIMATE.start_main_~a~0#1|) .cse3 .cse4 .cse5 (= |ULTIMATE.start_main_~v~0#1| (bvadd |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~u~0#1|)) .cse7 .cse8 (bvugt .cse11 |ULTIMATE.start_main_~y~0#1|) .cse9 .cse1 .cse2 (not (= .cse11 |ULTIMATE.start_main_~y~0#1|)) .cse6)) (let ((.cse12 (bvadd |ULTIMATE.start_main_~y~0#1| (bvmul .cse17 (_ bv4294967295 32))))) (and (= .cse12 .cse13) (not (bvugt |ULTIMATE.start_main_~x~0#1| .cse12)) .cse3 .cse4 (= (bvadd |ULTIMATE.start_main_~u~0#1| (bvmul |ULTIMATE.start_main_~v~0#1| (_ bv4294967295 32))) .cse14) (not (= |ULTIMATE.start_main_~x~0#1| .cse12)) .cse7 .cse8 .cse15 .cse10 .cse0 .cse1 .cse16 .cse6)) (and .cse1 .cse3 .cse4 .cse6 .cse7 .cse8 .cse9) (and (= |ULTIMATE.start_main_~y~0#1| .cse13) .cse3 .cse4 .cse7 .cse8 .cse9 .cse15 .cse10 .cse0 .cse1 (= |ULTIMATE.start_main_~u~0#1| .cse14) .cse16 .cse6)))) [2023-02-18 19:01:49,235 INFO L895 garLoopResultBuilder]: At program point L37-2(lines 37 50) the Hoare annotation is: (let ((.cse0 (bvule |ULTIMATE.start_main_~a~0#1| (_ bv50 32))) (.cse1 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv0 32))) (.cse2 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv1 32))) (.cse3 (bvuge |ULTIMATE.start_main_~a~0#1| (_ bv0 32))) (.cse4 (bvule |ULTIMATE.start_main_~b~0#1| (_ bv50 32))) (.cse5 (bvuge |ULTIMATE.start_main_~b~0#1| (_ bv1 32))) (.cse6 (= (bvadd (bvmul |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~u~0#1|) (bvmul |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~v~0#1|)) (bvmul (bvmul (_ bv2 32) |ULTIMATE.start_main_~a~0#1|) |ULTIMATE.start_main_~b~0#1|)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (let ((.cse7 (bvadd (bvmul (bvneg |ULTIMATE.start_main_~y~0#1|) (_ bv4294967295 32)) |ULTIMATE.start_main_~x~0#1|))) (and .cse0 (= |ULTIMATE.start_main_~u~0#1| |ULTIMATE.start_main_~b~0#1|) (= .cse7 |ULTIMATE.start_main_~a~0#1|) .cse1 .cse2 (not (= .cse7 |ULTIMATE.start_main_~y~0#1|)) (= |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~b~0#1|) .cse3 (= |ULTIMATE.start_main_~v~0#1| (bvadd |ULTIMATE.start_main_~a~0#1| |ULTIMATE.start_main_~u~0#1|)) .cse4 .cse5 (bvugt .cse7 |ULTIMATE.start_main_~y~0#1|))) .cse6)) [2023-02-18 19:01:49,235 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point L9(line 9) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 10) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 8 10) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point L13(lines 13 14) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point L12(lines 12 15) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point L12-2(lines 11 17) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 11 17) no Hoare annotation was computed. [2023-02-18 19:01:49,235 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2023-02-18 19:01:49,235 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2023-02-18 19:01:49,238 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-02-18 19:01:49,239 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-02-18 19:01:49,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 07:01:49 BoogieIcfgContainer [2023-02-18 19:01:49,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-02-18 19:01:49,270 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-02-18 19:01:49,270 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-02-18 19:01:49,270 INFO L275 PluginConnector]: Witness Printer initialized [2023-02-18 19:01:49,271 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:01:02" (3/4) ... [2023-02-18 19:01:49,272 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-02-18 19:01:49,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-02-18 19:01:49,277 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-02-18 19:01:49,279 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2023-02-18 19:01:49,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-02-18 19:01:49,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-02-18 19:01:49,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 19:01:49,280 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-02-18 19:01:49,308 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-02-18 19:01:49,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-02-18 19:01:49,309 INFO L158 Benchmark]: Toolchain (without parser) took 47028.25ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 57.1MB in the beginning and 56.7MB in the end (delta: 397.0kB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,309 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 19:01:49,309 INFO L158 Benchmark]: CACSL2BoogieTranslator took 162.86ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 45.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.60ms. Allocated memory is still 79.7MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,310 INFO L158 Benchmark]: Boogie Preprocessor took 15.43ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 43.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-02-18 19:01:49,310 INFO L158 Benchmark]: RCFGBuilder took 242.66ms. Allocated memory is still 79.7MB. Free memory was 43.0MB in the beginning and 55.3MB in the end (delta: -12.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,310 INFO L158 Benchmark]: TraceAbstraction took 46542.66ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.5MB in the beginning and 59.6MB in the end (delta: -5.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,310 INFO L158 Benchmark]: Witness Printer took 38.51ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 56.7MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-02-18 19:01:49,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory is still 38.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 162.86ms. Allocated memory is still 79.7MB. Free memory was 56.8MB in the beginning and 45.8MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.60ms. Allocated memory is still 79.7MB. Free memory was 45.8MB in the beginning and 44.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.43ms. Allocated memory is still 79.7MB. Free memory was 44.3MB in the beginning and 43.0MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.66ms. Allocated memory is still 79.7MB. Free memory was 43.0MB in the beginning and 55.3MB in the end (delta: -12.3MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * TraceAbstraction took 46542.66ms. Allocated memory was 79.7MB in the beginning and 96.5MB in the end (delta: 16.8MB). Free memory was 54.5MB in the beginning and 59.6MB in the end (delta: -5.1MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Witness Printer took 38.51ms. Allocated memory is still 96.5MB. Free memory was 59.6MB in the beginning and 56.7MB in the end (delta: 2.9MB). 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: 14]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 46.5s, OverallIterations: 4, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 86 SdHoareTripleChecker+Valid, 26.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 81 mSDsluCounter, 344 SdHoareTripleChecker+Invalid, 25.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 246 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 756 IncrementalHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 98 mSDtfsCounter, 756 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 325 GetRequests, 242 SyntacticMatches, 25 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 16.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=3, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 33 PreInvPairs, 52 NumberOfFragments, 725 HoareAnnotationTreeSize, 33 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 314 ConstructedInterpolants, 0 QuantifiedInterpolants, 1676 SizeOfPredicates, 21 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 373/460 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: 19]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: (((((((((((((v == a && ~bvule32(a, 50bv32)) && u == b) && ~bvuge32(b, 0bv32)) && ~bvuge32(a, 1bv32)) && y == b) && ~bvuge32(a, 0bv32)) && ~bvule32(b, 50bv32)) && ~bvuge32(b, 1bv32)) && ~bvadd128(~bvmul32(x, u), ~bvmul32(y, v)) == ~bvmul32(~bvmul32(2bv32, a), b)) && x == a) || ((((((((((((~bvadd128(~bvmul32(~bvneg128(y), 4294967295bv32), x) == a && ~bvuge32(b, 0bv32)) && ~bvuge32(a, 1bv32)) && y == b) && v == ~bvadd128(a, u)) && ~bvule32(b, 50bv32)) && ~bvuge32(b, 1bv32)) && ~bvugt32(~bvadd128(~bvmul32(~bvneg128(y), 4294967295bv32), x), y)) && ~bvadd128(~bvmul32(x, u), ~bvmul32(y, v)) == ~bvmul32(~bvmul32(2bv32, a), b)) && ~bvule32(a, 50bv32)) && u == b) && !(~bvadd128(~bvmul32(~bvneg128(y), 4294967295bv32), x) == y)) && ~bvuge32(a, 0bv32))) || (((((((((((((~bvadd128(y, ~bvmul32(~bvneg128(x), 4294967295bv32)) == ~bvadd128(b, ~bvneg128(x)) && !~bvugt32(x, ~bvadd128(y, ~bvmul32(~bvneg128(x), 4294967295bv32)))) && ~bvuge32(b, 0bv32)) && ~bvuge32(a, 1bv32)) && ~bvadd128(u, ~bvmul32(v, 4294967295bv32)) == ~bvadd128(b, v)) && !(x == ~bvadd128(y, ~bvmul32(~bvneg128(x), 4294967295bv32)))) && ~bvule32(b, 50bv32)) && ~bvuge32(b, 1bv32)) && !(x == b)) && x == a) && v == a) && ~bvule32(a, 50bv32)) && !~bvugt32(x, b)) && ~bvuge32(a, 0bv32))) || ((((((~bvule32(a, 50bv32) && ~bvuge32(b, 0bv32)) && ~bvuge32(a, 1bv32)) && ~bvuge32(a, 0bv32)) && ~bvule32(b, 50bv32)) && ~bvuge32(b, 1bv32)) && ~bvadd128(~bvmul32(x, u), ~bvmul32(y, v)) == ~bvmul32(~bvmul32(2bv32, a), b))) || ((((((((((((y == ~bvadd128(b, ~bvneg128(x)) && ~bvuge32(b, 0bv32)) && ~bvuge32(a, 1bv32)) && ~bvule32(b, 50bv32)) && ~bvuge32(b, 1bv32)) && ~bvadd128(~bvmul32(x, u), ~bvmul32(y, v)) == ~bvmul32(~bvmul32(2bv32, a), b)) && !(x == b)) && x == a) && v == a) && ~bvule32(a, 50bv32)) && u == ~bvadd128(b, v)) && !~bvugt32(x, b)) && ~bvuge32(a, 0bv32)) RESULT: Ultimate proved your program to be correct! [2023-02-18 19:01:49,360 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