./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7e1ff0e6 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/loop-zilu/benchmark08_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58639ff425b05f7497b3d6ac8d1e0a9c9e2e7663b2f2f0cb8654fd8932f07edd --- Real Ultimate output --- This is Ultimate 0.2.2-?-7e1ff0e [2023-02-15 01:54:57,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 01:54:57,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 01:54:57,919 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 01:54:57,919 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 01:54:57,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 01:54:57,921 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 01:54:57,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 01:54:57,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 01:54:57,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 01:54:57,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 01:54:57,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 01:54:57,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 01:54:57,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 01:54:57,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 01:54:57,932 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 01:54:57,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 01:54:57,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 01:54:57,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 01:54:57,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 01:54:57,943 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 01:54:57,945 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 01:54:57,946 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 01:54:57,950 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 01:54:57,952 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 01:54:57,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 01:54:57,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 01:54:57,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 01:54:57,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 01:54:57,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 01:54:57,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 01:54:57,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 01:54:57,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 01:54:57,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 01:54:57,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 01:54:57,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 01:54:57,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 01:54:57,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 01:54:57,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 01:54:57,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 01:54:57,967 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 01:54:57,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 01:54:57,995 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 01:54:57,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 01:54:57,996 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 01:54:57,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 01:54:57,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 01:54:57,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 01:54:57,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 01:54:57,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 01:54:57,998 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 01:54:57,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 01:54:57,999 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 01:54:58,000 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 01:54:58,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 01:54:58,000 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 01:54:58,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 01:54:58,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 01:54:58,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 01:54:58,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 01:54:58,001 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 01:54:58,001 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 01:54:58,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 01:54:58,002 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 01:54:58,002 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 01:54:58,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 01:54:58,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 01:54:58,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 01:54:58,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:58,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 01:54:58,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 01:54:58,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 01:54:58,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 01:54:58,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 01:54:58,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 01:54:58,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 01:54:58,004 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 01:54:58,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 01:54:58,005 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 01:54:58,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58639ff425b05f7497b3d6ac8d1e0a9c9e2e7663b2f2f0cb8654fd8932f07edd [2023-02-15 01:54:58,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 01:54:58,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 01:54:58,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 01:54:58,266 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 01:54:58,267 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 01:54:58,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i [2023-02-15 01:54:59,369 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 01:54:59,536 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 01:54:59,537 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark08_conjunctive.i [2023-02-15 01:54:59,543 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d213f32a/f7d8bf7636674cb3875ed096b1bb4626/FLAG5ee526f81 [2023-02-15 01:54:59,559 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d213f32a/f7d8bf7636674cb3875ed096b1bb4626 [2023-02-15 01:54:59,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 01:54:59,561 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 01:54:59,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:59,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 01:54:59,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 01:54:59,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55130ec3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59, skipping insertion in model container [2023-02-15 01:54:59,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 01:54:59,592 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 01:54:59,746 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/loop-zilu/benchmark08_conjunctive.i[873,886] [2023-02-15 01:54:59,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:59,766 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 01:54:59,777 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/loop-zilu/benchmark08_conjunctive.i[873,886] [2023-02-15 01:54:59,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 01:54:59,795 INFO L208 MainTranslator]: Completed translation [2023-02-15 01:54:59,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59 WrapperNode [2023-02-15 01:54:59,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 01:54:59,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:59,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 01:54:59,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 01:54:59,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,811 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,825 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 39 [2023-02-15 01:54:59,826 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 01:54:59,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 01:54:59,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 01:54:59,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 01:54:59,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 01:54:59,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 01:54:59,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 01:54:59,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 01:54:59,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (1/1) ... [2023-02-15 01:54:59,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 01:54:59,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:54:59,872 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) [2023-02-15 01:54:59,874 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 [2023-02-15 01:54:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 01:54:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 01:54:59,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 01:54:59,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 01:54:59,950 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 01:54:59,952 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 01:55:00,106 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 01:55:00,111 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 01:55:00,111 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-15 01:55:00,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:55:00 BoogieIcfgContainer [2023-02-15 01:55:00,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 01:55:00,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 01:55:00,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 01:55:00,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 01:55:00,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:54:59" (1/3) ... [2023-02-15 01:55:00,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f93fdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:55:00, skipping insertion in model container [2023-02-15 01:55:00,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:54:59" (2/3) ... [2023-02-15 01:55:00,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f93fdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:55:00, skipping insertion in model container [2023-02-15 01:55:00,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:55:00" (3/3) ... [2023-02-15 01:55:00,120 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark08_conjunctive.i [2023-02-15 01:55:00,170 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 01:55:00,170 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-15 01:55:00,240 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 01:55:00,246 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;@4167e6ee, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 01:55:00,261 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-15 01:55:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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) [2023-02-15 01:55:00,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 01:55:00,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:00,271 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 01:55:00,271 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:00,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:00,277 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-15 01:55:00,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:00,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811047948] [2023-02-15 01:55:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:00,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:00,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:00,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:00,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811047948] [2023-02-15 01:55:00,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811047948] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:00,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:55:00,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:55:00,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986488047] [2023-02-15 01:55:00,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:00,446 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:55:00,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:55:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:55:00,498 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 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) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-15 01:55:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:00,584 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2023-02-15 01:55:00,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:55:00,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) Word has length 5 [2023-02-15 01:55:00,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:00,596 INFO L225 Difference]: With dead ends: 34 [2023-02-15 01:55:00,597 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:55:00,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:55:00,602 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 8 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:00,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:55:00,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:55:00,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2023-02-15 01:55:00,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-02-15 01:55:00,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 01:55:00,632 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2023-02-15 01:55:00,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:00,634 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 01:55:00,634 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2023-02-15 01:55:00,635 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 01:55:00,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 01:55:00,635 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:00,635 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 01:55:00,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 01:55:00,637 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:00,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:00,639 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-15 01:55:00,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:00,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277582144] [2023-02-15 01:55:00,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:00,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:00,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:00,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:00,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:00,697 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277582144] [2023-02-15 01:55:00,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277582144] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:00,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:55:00,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 01:55:00,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224237211] [2023-02-15 01:55:00,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:00,700 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 01:55:00,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:00,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 01:55:00,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:55:00,701 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 01:55:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:00,715 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 01:55:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 01:55:00,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) Word has length 6 [2023-02-15 01:55:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:00,717 INFO L225 Difference]: With dead ends: 16 [2023-02-15 01:55:00,717 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:55:00,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 01:55:00,719 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:00,719 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:00,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:55:00,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 01:55:00,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-02-15 01:55:00,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 01:55:00,723 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2023-02-15 01:55:00,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:00,724 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 01:55:00,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2023-02-15 01:55:00,724 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 01:55:00,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 01:55:00,725 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:00,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:00,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 01:55:00,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:00,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:00,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-15 01:55:00,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:00,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279078584] [2023-02-15 01:55:00,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:00,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:00,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:00,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279078584] [2023-02-15 01:55:00,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279078584] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:00,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:55:00,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:55:00,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360063530] [2023-02-15 01:55:00,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:00,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:55:00,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:00,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:55:00,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:55:00,808 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-15 01:55:00,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:00,847 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2023-02-15 01:55:00,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:55:00,847 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) Word has length 7 [2023-02-15 01:55:00,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:00,849 INFO L225 Difference]: With dead ends: 15 [2023-02-15 01:55:00,849 INFO L226 Difference]: Without dead ends: 14 [2023-02-15 01:55:00,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:55:00,855 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:00,857 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 6 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:00,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2023-02-15 01:55:00,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2023-02-15 01:55:00,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 13 states have internal predecessors, (14), 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) [2023-02-15 01:55:00,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-02-15 01:55:00,860 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 7 [2023-02-15 01:55:00,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:00,861 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2023-02-15 01:55:00,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-02-15 01:55:00,861 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-02-15 01:55:00,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 01:55:00,861 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:00,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:00,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 01:55:00,862 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:00,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:00,863 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-15 01:55:00,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:00,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347776508] [2023-02-15 01:55:00,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:00,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:00,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:00,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:00,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347776508] [2023-02-15 01:55:00,910 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347776508] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:00,910 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 01:55:00,910 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 01:55:00,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939985011] [2023-02-15 01:55:00,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:00,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 01:55:00,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:00,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 01:55:00,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 01:55:00,912 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-02-15 01:55:00,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:00,951 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-15 01:55:00,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 01:55:00,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2023-02-15 01:55:00,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:00,952 INFO L225 Difference]: With dead ends: 17 [2023-02-15 01:55:00,953 INFO L226 Difference]: Without dead ends: 16 [2023-02-15 01:55:00,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 01:55:00,954 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:00,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:00,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-15 01:55:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-15 01:55:00,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 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) [2023-02-15 01:55:00,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-15 01:55:00,962 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2023-02-15 01:55:00,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:00,962 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-15 01:55:00,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) [2023-02-15 01:55:00,963 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-15 01:55:00,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 01:55:00,963 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:00,963 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:00,963 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 01:55:00,964 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:00,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:00,964 INFO L85 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2023-02-15 01:55:00,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:00,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819488664] [2023-02-15 01:55:00,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:00,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:00,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:01,034 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:01,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819488664] [2023-02-15 01:55:01,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819488664] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:01,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913119119] [2023-02-15 01:55:01,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:01,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:01,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:01,038 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) [2023-02-15 01:55:01,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 01:55:01,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:01,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 01:55:01,095 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:01,198 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:01,198 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 01:55:01,199 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [913119119] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 01:55:01,199 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 01:55:01,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-15 01:55:01,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590586741] [2023-02-15 01:55:01,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 01:55:01,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 01:55:01,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:01,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 01:55:01,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2023-02-15 01:55:01,204 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-02-15 01:55:01,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:01,249 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-15 01:55:01,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 01:55:01,250 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) Word has length 10 [2023-02-15 01:55:01,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:01,250 INFO L225 Difference]: With dead ends: 16 [2023-02-15 01:55:01,250 INFO L226 Difference]: Without dead ends: 15 [2023-02-15 01:55:01,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-02-15 01:55:01,251 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:01,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 5 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:01,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-15 01:55:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-15 01:55:01,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-02-15 01:55:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-15 01:55:01,255 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 10 [2023-02-15 01:55:01,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:01,255 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-15 01:55:01,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 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) [2023-02-15 01:55:01,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-15 01:55:01,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 01:55:01,256 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:01,256 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 01:55:01,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:01,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:01,462 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:01,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-15 01:55:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:01,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538853291] [2023-02-15 01:55:01,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:01,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:01,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:01,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538853291] [2023-02-15 01:55:01,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538853291] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:01,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451054429] [2023-02-15 01:55:01,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:01,541 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:01,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:01,543 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) [2023-02-15 01:55:01,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 01:55:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:01,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 01:55:01,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:01,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:01,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:01,693 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:01,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451054429] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:01,694 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:01,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-15 01:55:01,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104825674] [2023-02-15 01:55:01,695 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:01,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 01:55:01,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:01,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 01:55:01,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2023-02-15 01:55:01,696 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 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) [2023-02-15 01:55:01,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:01,757 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2023-02-15 01:55:01,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 01:55:01,758 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 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) Word has length 11 [2023-02-15 01:55:01,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:01,759 INFO L225 Difference]: With dead ends: 25 [2023-02-15 01:55:01,759 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 01:55:01,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2023-02-15 01:55:01,768 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:01,768 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 01:55:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-02-15 01:55:01,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 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) [2023-02-15 01:55:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 01:55:01,774 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 11 [2023-02-15 01:55:01,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:01,775 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 01:55:01,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 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) [2023-02-15 01:55:01,775 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 01:55:01,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-02-15 01:55:01,775 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:01,775 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 01:55:01,787 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-15 01:55:01,981 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,SelfDestructingSolverStorable5 [2023-02-15 01:55:01,981 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:01,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2023-02-15 01:55:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:01,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128534268] [2023-02-15 01:55:01,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:01,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:02,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:02,060 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:02,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128534268] [2023-02-15 01:55:02,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128534268] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:02,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125878603] [2023-02-15 01:55:02,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:02,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:02,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:02,063 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) [2023-02-15 01:55:02,065 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 01:55:02,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:02,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 01:55:02,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:02,112 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:02,155 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125878603] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:02,155 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:02,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-15 01:55:02,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862851156] [2023-02-15 01:55:02,156 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:02,156 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-02-15 01:55:02,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:02,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-02-15 01:55:02,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-02-15 01:55:02,157 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 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) [2023-02-15 01:55:02,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:02,225 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2023-02-15 01:55:02,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 01:55:02,225 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 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) Word has length 13 [2023-02-15 01:55:02,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:02,227 INFO L225 Difference]: With dead ends: 32 [2023-02-15 01:55:02,227 INFO L226 Difference]: Without dead ends: 31 [2023-02-15 01:55:02,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2023-02-15 01:55:02,228 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:02,229 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:02,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-02-15 01:55:02,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2023-02-15 01:55:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 29 states have internal predecessors, (31), 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) [2023-02-15 01:55:02,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2023-02-15 01:55:02,244 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 13 [2023-02-15 01:55:02,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:02,244 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2023-02-15 01:55:02,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 10 states have internal predecessors, (24), 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) [2023-02-15 01:55:02,245 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2023-02-15 01:55:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 01:55:02,245 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:02,245 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1] [2023-02-15 01:55:02,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:02,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:02,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:02,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:02,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1032298143, now seen corresponding path program 2 times [2023-02-15 01:55:02,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:02,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727876528] [2023-02-15 01:55:02,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:02,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:02,568 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:02,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727876528] [2023-02-15 01:55:02,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727876528] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:02,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2030692527] [2023-02-15 01:55:02,569 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:55:02,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:02,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:02,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:02,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 01:55:02,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 01:55:02,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:02,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 01:55:02,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:02,753 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:02,887 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:02,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2030692527] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:02,887 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:02,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-15 01:55:02,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568144231] [2023-02-15 01:55:02,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:02,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-15 01:55:02,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:02,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-15 01:55:02,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=406, Unknown=0, NotChecked=0, Total=506 [2023-02-15 01:55:02,890 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 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) [2023-02-15 01:55:03,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:03,110 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2023-02-15 01:55:03,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 01:55:03,110 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 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) Word has length 21 [2023-02-15 01:55:03,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:03,111 INFO L225 Difference]: With dead ends: 46 [2023-02-15 01:55:03,111 INFO L226 Difference]: Without dead ends: 45 [2023-02-15 01:55:03,112 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=228, Invalid=764, Unknown=0, NotChecked=0, Total=992 [2023-02-15 01:55:03,112 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 22 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:03,112 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 20 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:55:03,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2023-02-15 01:55:03,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2023-02-15 01:55:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 41 states have (on average 1.0975609756097562) internal successors, (45), 42 states have internal predecessors, (45), 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) [2023-02-15 01:55:03,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2023-02-15 01:55:03,117 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 21 [2023-02-15 01:55:03,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:03,117 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2023-02-15 01:55:03,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 23 states have internal predecessors, (59), 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) [2023-02-15 01:55:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2023-02-15 01:55:03,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 01:55:03,118 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:03,118 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 01:55:03,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:03,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:03,323 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:03,324 INFO L85 PathProgramCache]: Analyzing trace with hash -765261969, now seen corresponding path program 2 times [2023-02-15 01:55:03,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:03,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440782887] [2023-02-15 01:55:03,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:03,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:03,446 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:03,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:03,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440782887] [2023-02-15 01:55:03,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440782887] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:03,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303952591] [2023-02-15 01:55:03,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 01:55:03,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:03,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:03,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:03,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 01:55:03,483 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 01:55:03,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:03,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-15 01:55:03,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:03,547 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-15 01:55:03,547 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-02-15 01:55:03,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303952591] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:03,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:03,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2023-02-15 01:55:03,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550791211] [2023-02-15 01:55:03,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:03,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-02-15 01:55:03,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:03,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-02-15 01:55:03,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-02-15 01:55:03,607 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 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) [2023-02-15 01:55:03,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:03,777 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-02-15 01:55:03,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 01:55:03,777 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 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) Word has length 28 [2023-02-15 01:55:03,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:03,778 INFO L225 Difference]: With dead ends: 43 [2023-02-15 01:55:03,778 INFO L226 Difference]: Without dead ends: 42 [2023-02-15 01:55:03,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2023-02-15 01:55:03,781 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 34 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:03,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 7 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 01:55:03,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-15 01:55:03,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2023-02-15 01:55:03,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.024390243902439) internal successors, (42), 41 states have internal predecessors, (42), 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) [2023-02-15 01:55:03,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2023-02-15 01:55:03,785 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 28 [2023-02-15 01:55:03,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:03,786 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2023-02-15 01:55:03,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.857142857142857) internal successors, (40), 15 states have internal predecessors, (40), 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) [2023-02-15 01:55:03,786 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2023-02-15 01:55:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-15 01:55:03,787 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:03,787 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 1, 1, 1, 1] [2023-02-15 01:55:03,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-02-15 01:55:03,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:03,992 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:03,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:03,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1695301535, now seen corresponding path program 3 times [2023-02-15 01:55:03,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:03,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108848102] [2023-02-15 01:55:03,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:03,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:04,309 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:04,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:04,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108848102] [2023-02-15 01:55:04,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108848102] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:04,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256267393] [2023-02-15 01:55:04,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 01:55:04,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:04,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:04,311 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:04,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 01:55:04,369 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 01:55:04,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:04,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 01:55:04,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:04,791 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:04,791 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:05,156 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:05,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256267393] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:05,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:05,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2023-02-15 01:55:05,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284211668] [2023-02-15 01:55:05,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:05,157 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-02-15 01:55:05,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:05,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-02-15 01:55:05,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=332, Invalid=1830, Unknown=0, NotChecked=0, Total=2162 [2023-02-15 01:55:05,159 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 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) [2023-02-15 01:55:05,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:05,840 INFO L93 Difference]: Finished difference Result 83 states and 90 transitions. [2023-02-15 01:55:05,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-15 01:55:05,840 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 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) Word has length 41 [2023-02-15 01:55:05,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:05,844 INFO L225 Difference]: With dead ends: 83 [2023-02-15 01:55:05,844 INFO L226 Difference]: Without dead ends: 82 [2023-02-15 01:55:05,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1113 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=892, Invalid=3530, Unknown=0, NotChecked=0, Total=4422 [2023-02-15 01:55:05,846 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 54 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:05,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 29 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 01:55:05,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2023-02-15 01:55:05,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2023-02-15 01:55:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.0123456790123457) internal successors, (82), 81 states have internal predecessors, (82), 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) [2023-02-15 01:55:05,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 82 transitions. [2023-02-15 01:55:05,863 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 82 transitions. Word has length 41 [2023-02-15 01:55:05,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:05,864 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 82 transitions. [2023-02-15 01:55:05,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 2.5869565217391304) internal successors, (119), 47 states have internal predecessors, (119), 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) [2023-02-15 01:55:05,864 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 82 transitions. [2023-02-15 01:55:05,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-15 01:55:05,868 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:05,868 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 1, 1, 1, 1] [2023-02-15 01:55:05,878 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:06,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:06,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:06,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:06,074 INFO L85 PathProgramCache]: Analyzing trace with hash 477757025, now seen corresponding path program 4 times [2023-02-15 01:55:06,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:06,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852940842] [2023-02-15 01:55:06,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:06,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:07,093 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:07,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:07,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852940842] [2023-02-15 01:55:07,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852940842] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:07,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352616680] [2023-02-15 01:55:07,094 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 01:55:07,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:07,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:07,097 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:07,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 01:55:07,158 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 01:55:07,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:07,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 01:55:07,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:08,382 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:08,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:09,628 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:09,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352616680] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:09,629 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:09,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-15 01:55:09,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043256071] [2023-02-15 01:55:09,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:09,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-15 01:55:09,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:09,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-15 01:55:09,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1180, Invalid=7750, Unknown=0, NotChecked=0, Total=8930 [2023-02-15 01:55:09,637 INFO L87 Difference]: Start difference. First operand 82 states and 82 transitions. Second operand has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 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) [2023-02-15 01:55:12,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:12,268 INFO L93 Difference]: Finished difference Result 163 states and 178 transitions. [2023-02-15 01:55:12,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-15 01:55:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 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) Word has length 81 [2023-02-15 01:55:12,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:12,269 INFO L225 Difference]: With dead ends: 163 [2023-02-15 01:55:12,269 INFO L226 Difference]: Without dead ends: 162 [2023-02-15 01:55:12,273 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5085 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=3640, Invalid=15542, Unknown=0, NotChecked=0, Total=19182 [2023-02-15 01:55:12,274 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 187 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 187 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 187 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:12,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 52 Invalid, 656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [187 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 01:55:12,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2023-02-15 01:55:12,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2023-02-15 01:55:12,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 1.0062111801242235) internal successors, (162), 161 states have internal predecessors, (162), 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) [2023-02-15 01:55:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 162 transitions. [2023-02-15 01:55:12,284 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 162 transitions. Word has length 81 [2023-02-15 01:55:12,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:12,284 INFO L495 AbstractCegarLoop]: Abstraction has 162 states and 162 transitions. [2023-02-15 01:55:12,285 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.5425531914893615) internal successors, (239), 95 states have internal predecessors, (239), 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) [2023-02-15 01:55:12,285 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 162 transitions. [2023-02-15 01:55:12,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-15 01:55:12,287 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:12,287 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 1, 1, 1, 1] [2023-02-15 01:55:12,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 01:55:12,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:12,497 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:12,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:12,498 INFO L85 PathProgramCache]: Analyzing trace with hash -758875551, now seen corresponding path program 5 times [2023-02-15 01:55:12,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:12,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116316645] [2023-02-15 01:55:12,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:12,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:12,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:15,580 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:15,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:15,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116316645] [2023-02-15 01:55:15,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116316645] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:15,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242291402] [2023-02-15 01:55:15,581 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 01:55:15,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:15,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:15,582 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:15,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 01:55:15,673 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-15 01:55:15,673 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:15,675 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 96 conjunts are in the unsatisfiable core [2023-02-15 01:55:15,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:55:19,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:19,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:55:23,563 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:23,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242291402] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:55:23,563 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:55:23,563 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-02-15 01:55:23,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594078004] [2023-02-15 01:55:23,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:55:23,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-02-15 01:55:23,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:55:23,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-02-15 01:55:23,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4412, Invalid=31878, Unknown=0, NotChecked=0, Total=36290 [2023-02-15 01:55:23,576 INFO L87 Difference]: Start difference. First operand 162 states and 162 transitions. Second operand has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 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) [2023-02-15 01:55:36,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:55:36,517 INFO L93 Difference]: Finished difference Result 323 states and 354 transitions. [2023-02-15 01:55:36,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-15 01:55:36,518 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 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) Word has length 161 [2023-02-15 01:55:36,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:55:36,520 INFO L225 Difference]: With dead ends: 323 [2023-02-15 01:55:36,520 INFO L226 Difference]: Without dead ends: 322 [2023-02-15 01:55:36,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 476 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 281 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21669 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=14704, Invalid=65102, Unknown=0, NotChecked=0, Total=79806 [2023-02-15 01:55:36,526 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 723 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 723 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 1678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 723 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 01:55:36,526 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 101 Invalid, 1678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [723 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 01:55:36,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2023-02-15 01:55:36,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2023-02-15 01:55:36,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 1.0031152647975077) internal successors, (322), 321 states have internal predecessors, (322), 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) [2023-02-15 01:55:36,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 322 transitions. [2023-02-15 01:55:36,542 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 322 transitions. Word has length 161 [2023-02-15 01:55:36,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:55:36,543 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 322 transitions. [2023-02-15 01:55:36,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 2.5210526315789474) internal successors, (479), 191 states have internal predecessors, (479), 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) [2023-02-15 01:55:36,543 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 322 transitions. [2023-02-15 01:55:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-15 01:55:36,547 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:55:36,547 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 1, 1, 1, 1] [2023-02-15 01:55:36,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 01:55:36,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-15 01:55:36,748 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:55:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:55:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1806601631, now seen corresponding path program 6 times [2023-02-15 01:55:36,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:55:36,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391489889] [2023-02-15 01:55:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:55:36,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:55:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:55:47,961 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:55:47,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:55:47,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391489889] [2023-02-15 01:55:47,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391489889] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:55:47,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883374832] [2023-02-15 01:55:47,962 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 01:55:47,962 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:55:47,962 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:55:47,963 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:55:47,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 01:55:48,184 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-15 01:55:48,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 01:55:48,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 192 conjunts are in the unsatisfiable core [2023-02-15 01:55:48,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 01:56:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:01,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 01:56:17,749 INFO L134 CoverageAnalysis]: Checked inductivity of 9954 backedges. 0 proven. 9954 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:56:17,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883374832] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 01:56:17,750 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 01:56:17,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2023-02-15 01:56:17,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187586316] [2023-02-15 01:56:17,750 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 01:56:17,751 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2023-02-15 01:56:17,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 01:56:17,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2023-02-15 01:56:17,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17020, Invalid=129286, Unknown=0, NotChecked=0, Total=146306 [2023-02-15 01:56:17,764 INFO L87 Difference]: Start difference. First operand 322 states and 322 transitions. Second operand has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 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) [2023-02-15 01:57:35,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 01:57:35,740 INFO L93 Difference]: Finished difference Result 643 states and 706 transitions. [2023-02-15 01:57:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-15 01:57:35,740 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 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) Word has length 321 [2023-02-15 01:57:35,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 01:57:35,744 INFO L225 Difference]: With dead ends: 643 [2023-02-15 01:57:35,744 INFO L226 Difference]: Without dead ends: 642 [2023-02-15 01:57:35,759 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 956 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 569 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89397 ImplicationChecksByTransitivity, 108.3s TimeCoverageRelationStatistics Valid=59104, Invalid=266366, Unknown=0, NotChecked=0, Total=325470 [2023-02-15 01:57:35,760 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2626 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 1895 mSolverCounterSat, 2626 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2626 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 4521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2626 IncrementalHoareTripleChecker+Valid, 1895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-02-15 01:57:35,760 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2626 Valid, 196 Invalid, 4521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2626 Valid, 1895 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-02-15 01:57:35,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2023-02-15 01:57:35,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2023-02-15 01:57:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.001560062402496) internal successors, (642), 641 states have internal predecessors, (642), 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) [2023-02-15 01:57:35,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 642 transitions. [2023-02-15 01:57:35,783 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 642 transitions. Word has length 321 [2023-02-15 01:57:35,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 01:57:35,784 INFO L495 AbstractCegarLoop]: Abstraction has 642 states and 642 transitions. [2023-02-15 01:57:35,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.5104712041884816) internal successors, (959), 383 states have internal predecessors, (959), 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) [2023-02-15 01:57:35,785 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 642 transitions. [2023-02-15 01:57:35,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-02-15 01:57:35,797 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 01:57:35,797 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 1, 1, 1, 1] [2023-02-15 01:57:35,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-15 01:57:36,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-15 01:57:36,005 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-15 01:57:36,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 01:57:36,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1421122975, now seen corresponding path program 7 times [2023-02-15 01:57:36,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 01:57:36,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595826749] [2023-02-15 01:57:36,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 01:57:36,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 01:57:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:58:24,681 INFO L134 CoverageAnalysis]: Checked inductivity of 40386 backedges. 0 proven. 40386 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 01:58:24,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 01:58:24,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595826749] [2023-02-15 01:58:24,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595826749] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 01:58:24,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059788977] [2023-02-15 01:58:24,681 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 01:58:24,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 01:58:24,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 01:58:24,689 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 01:58:24,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 01:58:24,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 01:58:24,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 1432 conjuncts, 384 conjunts are in the unsatisfiable core [2023-02-15 01:58:24,945 INFO L286 TraceCheckSpWp]: Computing forward predicates...