./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loops/sum_array-2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3dbbec33 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/loops/sum_array-2-2.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 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3dbbec3 [2023-02-14 14:31:19,026 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-14 14:31:19,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-14 14:31:19,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-14 14:31:19,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-14 14:31:19,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-14 14:31:19,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-14 14:31:19,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-14 14:31:19,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-14 14:31:19,065 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-14 14:31:19,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-14 14:31:19,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-14 14:31:19,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-14 14:31:19,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-14 14:31:19,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-14 14:31:19,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-14 14:31:19,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-14 14:31:19,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-14 14:31:19,075 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-14 14:31:19,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-14 14:31:19,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-14 14:31:19,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-14 14:31:19,082 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-14 14:31:19,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-14 14:31:19,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-14 14:31:19,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-14 14:31:19,089 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-14 14:31:19,090 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-14 14:31:19,090 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-14 14:31:19,091 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-14 14:31:19,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-14 14:31:19,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-14 14:31:19,092 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-14 14:31:19,093 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-14 14:31:19,094 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-14 14:31:19,094 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-14 14:31:19,095 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-14 14:31:19,095 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-14 14:31:19,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-14 14:31:19,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-14 14:31:19,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-14 14:31:19,098 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-14 14:31:19,119 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-14 14:31:19,119 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-14 14:31:19,120 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-14 14:31:19,120 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-14 14:31:19,121 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-14 14:31:19,121 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-14 14:31:19,121 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-14 14:31:19,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-14 14:31:19,122 INFO L138 SettingsManager]: * Use SBE=true [2023-02-14 14:31:19,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-14 14:31:19,122 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-14 14:31:19,122 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-14 14:31:19,123 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-14 14:31:19,124 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-14 14:31:19,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:31:19,125 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-14 14:31:19,125 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-14 14:31:19,125 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-14 14:31:19,125 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-14 14:31:19,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-14 14:31:19,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-14 14:31:19,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-14 14:31:19,126 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-14 14:31:19,126 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-14 14:31:19,126 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-14 14:31:19,126 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0cf9175e436d0e00a51b884dabf87739d3176e3315a908e56fcba99730a10796 [2023-02-14 14:31:19,350 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-14 14:31:19,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-14 14:31:19,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-14 14:31:19,368 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-14 14:31:19,368 INFO L275 PluginConnector]: CDTParser initialized [2023-02-14 14:31:19,369 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/sum_array-2-2.i [2023-02-14 14:31:20,304 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-14 14:31:20,483 INFO L351 CDTParser]: Found 1 translation units. [2023-02-14 14:31:20,496 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/sum_array-2-2.i [2023-02-14 14:31:20,506 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c0a5dcf/bef42faf83a448fbbc35ebd8333bd8d8/FLAG8a0acaa70 [2023-02-14 14:31:20,520 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42c0a5dcf/bef42faf83a448fbbc35ebd8333bd8d8 [2023-02-14 14:31:20,522 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-14 14:31:20,523 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-14 14:31:20,526 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-14 14:31:20,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-14 14:31:20,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-14 14:31:20,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e676251 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20, skipping insertion in model container [2023-02-14 14:31:20,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-14 14:31:20,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-14 14:31:20,645 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/loops/sum_array-2-2.i[940,953] [2023-02-14 14:31:20,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:31:20,662 INFO L203 MainTranslator]: Completed pre-run [2023-02-14 14:31:20,670 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/loops/sum_array-2-2.i[940,953] [2023-02-14 14:31:20,680 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-14 14:31:20,688 INFO L208 MainTranslator]: Completed translation [2023-02-14 14:31:20,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20 WrapperNode [2023-02-14 14:31:20,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-14 14:31:20,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-14 14:31:20,694 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-14 14:31:20,694 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-14 14:31:20,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,717 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 132 [2023-02-14 14:31:20,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-14 14:31:20,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-14 14:31:20,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-14 14:31:20,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-14 14:31:20,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,734 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,741 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,742 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,743 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-14 14:31:20,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-14 14:31:20,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-14 14:31:20,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-14 14:31:20,749 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (1/1) ... [2023-02-14 14:31:20,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-14 14:31:20,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:20,778 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) [2023-02-14 14:31:20,783 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 [2023-02-14 14:31:20,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-14 14:31:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-14 14:31:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-02-14 14:31:20,804 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-14 14:31:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-14 14:31:20,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-14 14:31:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-14 14:31:20,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-14 14:31:20,848 INFO L235 CfgBuilder]: Building ICFG [2023-02-14 14:31:20,850 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-14 14:31:21,037 INFO L276 CfgBuilder]: Performing block encoding [2023-02-14 14:31:21,041 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-14 14:31:21,041 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2023-02-14 14:31:21,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:31:21 BoogieIcfgContainer [2023-02-14 14:31:21,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-14 14:31:21,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-14 14:31:21,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-14 14:31:21,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-14 14:31:21,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.02 02:31:20" (1/3) ... [2023-02-14 14:31:21,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca56a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:31:21, skipping insertion in model container [2023-02-14 14:31:21,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.02 02:31:20" (2/3) ... [2023-02-14 14:31:21,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca56a1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.02 02:31:21, skipping insertion in model container [2023-02-14 14:31:21,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.02 02:31:21" (3/3) ... [2023-02-14 14:31:21,047 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-2.i [2023-02-14 14:31:21,058 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-14 14:31:21,072 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-14 14:31:21,117 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-14 14:31:21,122 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;@3b29cf3b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-14 14:31:21,122 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-14 14:31:21,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 32 states have internal predecessors, (46), 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) [2023-02-14 14:31:21,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-14 14:31:21,130 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:21,130 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:21,131 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)] === [2023-02-14 14:31:21,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1313663593, now seen corresponding path program 1 times [2023-02-14 14:31:21,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:21,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304130856] [2023-02-14 14:31:21,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:21,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:21,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:21,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304130856] [2023-02-14 14:31:21,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304130856] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-14 14:31:21,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-14 14:31:21,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-14 14:31:21,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978537570] [2023-02-14 14:31:21,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-14 14:31:21,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-14 14:31:21,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:31:21,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-14 14:31:21,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:31:21,550 INFO L87 Difference]: Start difference. First operand has 33 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 32 states have internal predecessors, (46), 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 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-02-14 14:31:21,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:31:21,683 INFO L93 Difference]: Finished difference Result 95 states and 133 transitions. [2023-02-14 14:31:21,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-14 14:31:21,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 9 [2023-02-14 14:31:21,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:31:21,691 INFO L225 Difference]: With dead ends: 95 [2023-02-14 14:31:21,692 INFO L226 Difference]: Without dead ends: 50 [2023-02-14 14:31:21,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-14 14:31:21,698 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 39 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-14 14:31:21,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 94 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-14 14:31:21,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-02-14 14:31:21,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 31. [2023-02-14 14:31:21,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 30 states have internal predecessors, (34), 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) [2023-02-14 14:31:21,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2023-02-14 14:31:21,729 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 9 [2023-02-14 14:31:21,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:31:21,730 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2023-02-14 14:31:21,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2023-02-14 14:31:21,730 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2023-02-14 14:31:21,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-14 14:31:21,730 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:21,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:21,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-14 14:31:21,731 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:31:21,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash -322250057, now seen corresponding path program 1 times [2023-02-14 14:31:21,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:21,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513939866] [2023-02-14 14:31:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:21,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:21,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:23,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:23,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:23,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513939866] [2023-02-14 14:31:23,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513939866] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:31:23,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619513799] [2023-02-14 14:31:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:23,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:23,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:23,172 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) [2023-02-14 14:31:23,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-14 14:31:23,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:23,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-14 14:31:23,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:31:23,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-14 14:31:23,304 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2023-02-14 14:31:23,308 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:31:23,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2023-02-14 14:31:23,429 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:31:23,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-02-14 14:31:23,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:23,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:31:24,615 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:31:24,616 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 115 treesize of output 117 [2023-02-14 14:31:24,759 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 23 [2023-02-14 14:31:24,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2023-02-14 14:31:24,793 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2023-02-14 14:31:24,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6 [2023-02-14 14:31:24,816 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 30 [2023-02-14 14:31:24,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:24,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619513799] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:31:24,858 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:31:24,858 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 30 [2023-02-14 14:31:24,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993618664] [2023-02-14 14:31:24,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:31:24,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-02-14 14:31:24,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:31:24,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-02-14 14:31:24,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=160, Invalid=770, Unknown=0, NotChecked=0, Total=930 [2023-02-14 14:31:24,869 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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) [2023-02-14 14:31:27,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:31:27,170 INFO L93 Difference]: Finished difference Result 102 states and 112 transitions. [2023-02-14 14:31:27,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-02-14 14:31:27,170 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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 17 [2023-02-14 14:31:27,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:31:27,171 INFO L225 Difference]: With dead ends: 102 [2023-02-14 14:31:27,171 INFO L226 Difference]: Without dead ends: 101 [2023-02-14 14:31:27,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 984 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=812, Invalid=3220, Unknown=0, NotChecked=0, Total=4032 [2023-02-14 14:31:27,173 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 204 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 456 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-14 14:31:27,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 221 Invalid, 456 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-14 14:31:27,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2023-02-14 14:31:27,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 48. [2023-02-14 14:31:27,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 44 states have (on average 1.2272727272727273) internal successors, (54), 47 states have internal predecessors, (54), 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) [2023-02-14 14:31:27,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2023-02-14 14:31:27,183 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 17 [2023-02-14 14:31:27,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:31:27,183 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2023-02-14 14:31:27,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 1.5666666666666667) internal successors, (47), 31 states have internal predecessors, (47), 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) [2023-02-14 14:31:27,183 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2023-02-14 14:31:27,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-14 14:31:27,184 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:27,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:27,192 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-14 14:31:27,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:27,390 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:31:27,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:27,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1399817078, now seen corresponding path program 1 times [2023-02-14 14:31:27,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:27,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089564310] [2023-02-14 14:31:27,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:27,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:28,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:28,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:28,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089564310] [2023-02-14 14:31:28,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089564310] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:31:28,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [11558866] [2023-02-14 14:31:28,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:28,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:28,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:28,071 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) [2023-02-14 14:31:28,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-14 14:31:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:28,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-14 14:31:28,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:31:28,150 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-14 14:31:28,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-14 14:31:28,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-02-14 14:31:28,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-02-14 14:31:28,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:28,349 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:31:28,719 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:31:28,719 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 113 [2023-02-14 14:31:28,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2023-02-14 14:31:28,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2023-02-14 14:31:28,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2023-02-14 14:31:28,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 142 [2023-02-14 14:31:28,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-02-14 14:31:28,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:28,973 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:31:28,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2023-02-14 14:31:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:29,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [11558866] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:31:29,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:31:29,013 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2023-02-14 14:31:29,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281581245] [2023-02-14 14:31:29,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:31:29,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-14 14:31:29,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:31:29,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-14 14:31:29,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2023-02-14 14:31:29,015 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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) [2023-02-14 14:31:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:31:30,259 INFO L93 Difference]: Finished difference Result 99 states and 109 transitions. [2023-02-14 14:31:30,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2023-02-14 14:31:30,260 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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 18 [2023-02-14 14:31:30,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:31:30,261 INFO L225 Difference]: With dead ends: 99 [2023-02-14 14:31:30,261 INFO L226 Difference]: Without dead ends: 98 [2023-02-14 14:31:30,262 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 535 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=467, Invalid=1885, Unknown=0, NotChecked=0, Total=2352 [2023-02-14 14:31:30,262 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 151 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 14:31:30,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 291 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-14 14:31:30,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2023-02-14 14:31:30,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 49. [2023-02-14 14:31:30,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 48 states have internal predecessors, (55), 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) [2023-02-14 14:31:30,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 55 transitions. [2023-02-14 14:31:30,269 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 55 transitions. Word has length 18 [2023-02-14 14:31:30,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:31:30,270 INFO L495 AbstractCegarLoop]: Abstraction has 49 states and 55 transitions. [2023-02-14 14:31:30,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.0) internal successors, (50), 26 states have internal predecessors, (50), 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) [2023-02-14 14:31:30,270 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 55 transitions. [2023-02-14 14:31:30,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-14 14:31:30,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:30,271 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:30,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-14 14:31:30,474 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,SelfDestructingSolverStorable2 [2023-02-14 14:31:30,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:31:30,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:30,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2112995717, now seen corresponding path program 1 times [2023-02-14 14:31:30,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:30,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78725697] [2023-02-14 14:31:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:30,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:30,622 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:31:30,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:30,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78725697] [2023-02-14 14:31:30,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78725697] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:31:30,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [843477610] [2023-02-14 14:31:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:30,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:30,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:30,624 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) [2023-02-14 14:31:30,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-14 14:31:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:30,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-14 14:31:30,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:31:30,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:31:30,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:31:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:31:43,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [843477610] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:31:43,053 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:31:43,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2023-02-14 14:31:43,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166034116] [2023-02-14 14:31:43,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:31:43,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-14 14:31:43,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:31:43,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-14 14:31:43,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=73, Unknown=5, NotChecked=0, Total=110 [2023-02-14 14:31:43,077 INFO L87 Difference]: Start difference. First operand 49 states and 55 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2023-02-14 14:31:43,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:31:43,265 INFO L93 Difference]: Finished difference Result 117 states and 127 transitions. [2023-02-14 14:31:43,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-14 14:31:43,265 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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 [2023-02-14 14:31:43,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:31:43,266 INFO L225 Difference]: With dead ends: 117 [2023-02-14 14:31:43,266 INFO L226 Difference]: Without dead ends: 90 [2023-02-14 14:31:43,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 4 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 12.3s TimeCoverageRelationStatistics Valid=32, Invalid=73, Unknown=5, NotChecked=0, Total=110 [2023-02-14 14:31:43,267 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 104 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-14 14:31:43,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 147 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-14 14:31:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-02-14 14:31:43,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 59. [2023-02-14 14:31:43,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.2363636363636363) internal successors, (68), 58 states have internal predecessors, (68), 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) [2023-02-14 14:31:43,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2023-02-14 14:31:43,278 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 21 [2023-02-14 14:31:43,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:31:43,278 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2023-02-14 14:31:43,278 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 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) [2023-02-14 14:31:43,278 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2023-02-14 14:31:43,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-02-14 14:31:43,279 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:43,279 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:43,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-14 14:31:43,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:43,483 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:31:43,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash 930598631, now seen corresponding path program 1 times [2023-02-14 14:31:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:43,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848273444] [2023-02-14 14:31:43,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:43,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:44,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:44,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848273444] [2023-02-14 14:31:44,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848273444] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:31:44,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521826960] [2023-02-14 14:31:44,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:44,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:44,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:44,685 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) [2023-02-14 14:31:44,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-14 14:31:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:44,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 29 conjunts are in the unsatisfiable core [2023-02-14 14:31:44,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:31:44,749 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-14 14:31:44,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-02-14 14:31:44,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-02-14 14:31:44,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 57 [2023-02-14 14:31:44,903 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:31:45,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2023-02-14 14:31:45,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 17 [2023-02-14 14:31:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:45,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:31:45,196 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_141 (Array Int Int))) (< 0 (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) |c_ULTIMATE.start_main_~#B~0#1.offset|))))) is different from false [2023-02-14 14:31:45,331 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (* .cse5 4)) (.cse0 (<= .cse5 2147483647))) (and (or (not .cse0) (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0)))) (or (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< (+ v_ArrVal_139 1000000) 0) (< 0 (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|)))))) .cse0)))) is different from false [2023-02-14 14:31:45,341 WARN L837 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset| v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0))) is different from false [2023-02-14 14:31:45,477 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:31:45,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 517 treesize of output 513 [2023-02-14 14:31:45,492 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:31:45,492 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 464 treesize of output 424 [2023-02-14 14:31:54,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6921 treesize of output 6645 [2023-02-14 14:31:54,271 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6704 treesize of output 6700 [2023-02-14 14:31:54,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-02-14 14:31:54,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 28 [2023-02-14 14:31:55,012 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2023-02-14 14:31:55,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:55,025 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 13 [2023-02-14 14:31:55,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:55,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:55,040 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2023-02-14 14:31:55,048 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-02-14 14:31:55,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6888 treesize of output 6610 [2023-02-14 14:31:57,058 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1480 treesize of output 1348 [2023-02-14 14:31:57,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 125 [2023-02-14 14:31:57,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 93 [2023-02-14 14:31:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:57,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:57,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:31:57,391 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 64 [2023-02-14 14:31:57,605 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2023-02-14 14:31:57,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521826960] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:31:57,606 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:31:57,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 12] total 34 [2023-02-14 14:31:57,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785450124] [2023-02-14 14:31:57,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:31:57,607 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2023-02-14 14:31:57,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:31:57,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2023-02-14 14:31:57,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=165, Invalid=836, Unknown=3, NotChecked=186, Total=1190 [2023-02-14 14:31:57,610 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) [2023-02-14 14:31:57,886 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (forall ((|ULTIMATE.start_main_~#B~0#1.offset| Int) (v_ArrVal_141 (Array Int Int)) (v_ArrVal_139 Int)) (or (< 0 (let ((.cse5 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset| v_ArrVal_139)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|)))) (< (+ v_ArrVal_139 1000000) 0))))) (and (or (let ((.cse3 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#A~0#1.base|)) (.cse2 (* .cse3 4)) (.cse0 (<= .cse3 2147483647))) (and (or (not .cse0) (< (+ 1000000 (select .cse1 (+ |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2))) 0)) (or (< (+ (select .cse1 (+ (- 17179869184) |c_ULTIMATE.start_main_~#A~0#1.offset| .cse2)) 1000000) 0) .cse0)))) .cse4) .cse4 (or (not (<= 0 (+ 1000000 |c_ULTIMATE.start_main_#t~mem5#1|))) .cse4))) is different from false [2023-02-14 14:31:58,220 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (forall ((v_ArrVal_141 (Array Int Int))) (< 0 (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_141))) (+ 2147483649 (select (select .cse5 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse5 |c_ULTIMATE.start_main_~#B~0#1.base|) |c_ULTIMATE.start_main_~#B~0#1.offset|))))))) (and .cse0 (or .cse0 (let ((.cse4 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse2 (* .cse4 4)) (.cse3 (<= .cse4 2147483647))) (and (or (< (+ 1000000 (select .cse1 (+ |c_ULTIMATE.start_main_~#B~0#1.offset| .cse2))) 0) (not .cse3)) (or (< (+ (select .cse1 (+ |c_ULTIMATE.start_main_~#B~0#1.offset| (- 17179869184) .cse2)) 1000000) 0) .cse3))))) (or .cse0 (not (<= 0 (+ |c_ULTIMATE.start_main_#t~mem9#1| 1000000)))))) is different from false [2023-02-14 14:31:58,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:31:58,613 INFO L93 Difference]: Finished difference Result 92 states and 102 transitions. [2023-02-14 14:31:58,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-14 14:31:58,614 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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 23 [2023-02-14 14:31:58,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:31:58,614 INFO L225 Difference]: With dead ends: 92 [2023-02-14 14:31:58,615 INFO L226 Difference]: Without dead ends: 91 [2023-02-14 14:31:58,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 24 SyntacticMatches, 7 SemanticMatches, 47 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=343, Invalid=1564, Unknown=5, NotChecked=440, Total=2352 [2023-02-14 14:31:58,616 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 57 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 24 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 109 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-14 14:31:58,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 195 Invalid, 574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 434 Invalid, 7 Unknown, 109 Unchecked, 0.4s Time] [2023-02-14 14:31:58,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2023-02-14 14:31:58,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 78. [2023-02-14 14:31:58,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 77 states have internal predecessors, (89), 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) [2023-02-14 14:31:58,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2023-02-14 14:31:58,624 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 23 [2023-02-14 14:31:58,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:31:58,624 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2023-02-14 14:31:58,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 1.911764705882353) internal successors, (65), 35 states have internal predecessors, (65), 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) [2023-02-14 14:31:58,625 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2023-02-14 14:31:58,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-14 14:31:58,625 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:31:58,625 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:31:58,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-14 14:31:58,831 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:58,831 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:31:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:31:58,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1216213396, now seen corresponding path program 1 times [2023-02-14 14:31:58,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:31:58,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450475297] [2023-02-14 14:31:58,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:58,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:31:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:59,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-14 14:31:59,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:31:59,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450475297] [2023-02-14 14:31:59,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450475297] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:31:59,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107057871] [2023-02-14 14:31:59,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:31:59,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:31:59,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:31:59,572 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) [2023-02-14 14:31:59,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-14 14:31:59,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:31:59,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-14 14:31:59,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:31:59,635 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-02-14 14:31:59,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 19 [2023-02-14 14:31:59,667 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-02-14 14:31:59,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-02-14 14:31:59,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2023-02-14 14:31:59,894 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-02-14 14:31:59,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:31:59,922 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:32:00,107 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296))) (let ((.cse2 (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|)) (.cse3 (* .cse5 4)) (.cse0 (<= .cse5 2147483647))) (and (or (not .cse0) (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_178 Int) (|ULTIMATE.start_main_~#B~0#1.offset| Int)) (or (< (let ((.cse1 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_178)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse1 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse1 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) 2147483648) (< 1000000 v_ArrVal_178)))) (or (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_178 Int) (|ULTIMATE.start_main_~#B~0#1.offset| Int)) (or (< 1000000 v_ArrVal_178) (< (let ((.cse4 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store .cse2 (+ (- 17179869184) |ULTIMATE.start_main_~#B~0#1.offset| .cse3) v_ArrVal_178)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse4 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|) (select (select .cse4 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|))) 2147483648))) .cse0)))) is different from false [2023-02-14 14:32:00,115 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_180 (Array Int Int)) (v_ArrVal_178 Int) (|ULTIMATE.start_main_~#B~0#1.offset| Int)) (or (< 1000000 v_ArrVal_178) (< (let ((.cse0 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset| v_ArrVal_178)) |c_ULTIMATE.start_main_~#C~0#1.base| v_ArrVal_180))) (+ (select (select .cse0 |c_ULTIMATE.start_main_~#A~0#1.base|) |c_ULTIMATE.start_main_~#A~0#1.offset|) (select (select .cse0 |c_ULTIMATE.start_main_~#B~0#1.base|) |ULTIMATE.start_main_~#B~0#1.offset|))) 2147483648))) is different from false [2023-02-14 14:32:00,185 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:00,186 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 339 treesize of output 339 [2023-02-14 14:32:00,201 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:00,201 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 290 treesize of output 266 [2023-02-14 14:32:03,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1641 treesize of output 1571 [2023-02-14 14:32:03,898 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 291 treesize of output 283 [2023-02-14 14:32:03,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 146 treesize of output 142 [2023-02-14 14:32:03,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:04,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2509 treesize of output 2377 [2023-02-14 14:32:04,934 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2369 treesize of output 2243 [2023-02-14 14:32:04,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 2287 treesize of output 2283 [2023-02-14 14:32:05,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:05,514 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 14:32:05,516 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,522 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,533 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 14:32:05,536 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,540 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 14:32:05,542 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,548 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,550 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 14:32:05,552 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:05,726 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2023-02-14 14:32:05,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107057871] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:32:05,726 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:32:05,726 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 10] total 24 [2023-02-14 14:32:05,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941209070] [2023-02-14 14:32:05,727 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:32:05,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-02-14 14:32:05,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:32:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-02-14 14:32:05,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=425, Unknown=10, NotChecked=86, Total=600 [2023-02-14 14:32:05,728 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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) [2023-02-14 14:32:25,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:32:25,240 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2023-02-14 14:32:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-14 14:32:25,241 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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 24 [2023-02-14 14:32:25,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:32:25,241 INFO L225 Difference]: With dead ends: 98 [2023-02-14 14:32:25,241 INFO L226 Difference]: Without dead ends: 71 [2023-02-14 14:32:25,242 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 440 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=404, Invalid=1571, Unknown=13, NotChecked=174, Total=2162 [2023-02-14 14:32:25,243 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 200 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 323 mSolverCounterSat, 45 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 323 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 105 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-14 14:32:25,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 143 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 323 Invalid, 2 Unknown, 105 Unchecked, 0.3s Time] [2023-02-14 14:32:25,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-14 14:32:25,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 65. [2023-02-14 14:32:25,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 64 states have internal predecessors, (74), 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) [2023-02-14 14:32:25,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 74 transitions. [2023-02-14 14:32:25,250 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 74 transitions. Word has length 24 [2023-02-14 14:32:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:32:25,250 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 74 transitions. [2023-02-14 14:32:25,250 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.75) internal successors, (66), 25 states have internal predecessors, (66), 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) [2023-02-14 14:32:25,250 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 74 transitions. [2023-02-14 14:32:25,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-14 14:32:25,251 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:32:25,251 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:32:25,256 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-14 14:32:25,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:32:25,452 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-14 14:32:25,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:32:25,452 INFO L85 PathProgramCache]: Analyzing trace with hash 747240709, now seen corresponding path program 2 times [2023-02-14 14:32:25,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:32:25,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302980954] [2023-02-14 14:32:25,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:32:25,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:32:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:32:26,788 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:32:26,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:32:26,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302980954] [2023-02-14 14:32:26,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302980954] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:32:26,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826080728] [2023-02-14 14:32:26,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:32:26,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:32:26,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:32:26,791 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) [2023-02-14 14:32:26,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-14 14:32:26,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:32:26,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:32:26,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-14 14:32:26,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:32:26,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-14 14:32:26,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2023-02-14 14:32:26,885 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:32:27,029 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2023-02-14 14:32:27,035 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-02-14 14:32:27,035 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2023-02-14 14:32:27,047 WARN L207 Elim1Store]: Array PQE input equivalent to false [2023-02-14 14:32:27,254 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2023-02-14 14:32:27,259 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:32:27,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 73 [2023-02-14 14:32:27,474 INFO L321 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2023-02-14 14:32:27,475 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 97 [2023-02-14 14:32:27,501 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-02-14 14:32:27,501 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 26 [2023-02-14 14:32:27,749 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:27,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 27 [2023-02-14 14:32:27,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:32:27,780 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:32:35,293 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:35,294 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 158 treesize of output 160 [2023-02-14 14:32:35,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 217 [2023-02-14 14:32:35,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 682 treesize of output 678 [2023-02-14 14:32:35,659 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2023-02-14 14:32:35,676 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 148 [2023-02-14 14:32:35,700 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2023-02-14 14:32:35,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-14 14:32:35,719 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-14 14:32:35,722 WARN L207 Elim1Store]: Array PQE input equivalent to true [2023-02-14 14:32:35,726 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 190 treesize of output 186 [2023-02-14 14:32:35,828 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:32:35,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826080728] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-14 14:32:35,828 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-14 14:32:35,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 19] total 51 [2023-02-14 14:32:35,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158926220] [2023-02-14 14:32:35,828 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-14 14:32:35,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-02-14 14:32:35,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-14 14:32:35,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-02-14 14:32:35,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=2208, Unknown=1, NotChecked=0, Total=2652 [2023-02-14 14:32:35,830 INFO L87 Difference]: Start difference. First operand 65 states and 74 transitions. Second operand has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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) [2023-02-14 14:32:55,898 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-02-14 14:32:57,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-14 14:32:57,208 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2023-02-14 14:32:57,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2023-02-14 14:32:57,208 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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 25 [2023-02-14 14:32:57,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-14 14:32:57,209 INFO L225 Difference]: With dead ends: 122 [2023-02-14 14:32:57,209 INFO L226 Difference]: Without dead ends: 121 [2023-02-14 14:32:57,211 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3404 ImplicationChecksByTransitivity, 25.0s TimeCoverageRelationStatistics Valid=2057, Invalid=9497, Unknown=2, NotChecked=0, Total=11556 [2023-02-14 14:32:57,212 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 271 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 942 mSolverCounterSat, 136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 136 IncrementalHoareTripleChecker+Valid, 942 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-02-14 14:32:57,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 281 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [136 Valid, 942 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-02-14 14:32:57,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-02-14 14:32:57,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 76. [2023-02-14 14:32:57,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 72 states have (on average 1.2083333333333333) internal successors, (87), 75 states have internal predecessors, (87), 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) [2023-02-14 14:32:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2023-02-14 14:32:57,229 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 25 [2023-02-14 14:32:57,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-14 14:32:57,230 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2023-02-14 14:32:57,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 1.392156862745098) internal successors, (71), 52 states have internal predecessors, (71), 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) [2023-02-14 14:32:57,230 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2023-02-14 14:32:57,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-14 14:32:57,230 INFO L187 NwaCegarLoop]: Found error trace [2023-02-14 14:32:57,231 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-14 14:32:57,236 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-14 14:32:57,432 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:32:57,433 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)] === [2023-02-14 14:32:57,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-14 14:32:57,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1689625596, now seen corresponding path program 2 times [2023-02-14 14:32:57,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-14 14:32:57,433 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058989084] [2023-02-14 14:32:57,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-14 14:32:57,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-14 14:32:57,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-14 14:32:58,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:32:58,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-14 14:32:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058989084] [2023-02-14 14:32:58,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058989084] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-14 14:32:58,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [816110136] [2023-02-14 14:32:58,480 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-14 14:32:58,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-14 14:32:58,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-14 14:32:58,481 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) [2023-02-14 14:32:58,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-14 14:32:58,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-14 14:32:58,540 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-14 14:32:58,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 38 conjunts are in the unsatisfiable core [2023-02-14 14:32:58,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-14 14:32:58,551 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2023-02-14 14:32:58,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 45 [2023-02-14 14:32:58,584 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:32:58,680 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2023-02-14 14:32:58,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 62 [2023-02-14 14:32:58,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 13 [2023-02-14 14:32:58,965 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:58,965 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2023-02-14 14:32:59,153 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:32:59,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 19 [2023-02-14 14:32:59,181 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-14 14:32:59,181 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-14 14:33:08,095 WARN L233 SmtUtils]: Spent 5.21s on a formula simplification. DAG size of input: 84 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-14 14:33:11,206 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-14 14:33:11,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 154 treesize of output 156 [2023-02-14 14:33:11,424 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 182 treesize of output 178 [2023-02-14 14:33:11,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 307 treesize of output 299 [2023-02-14 14:33:11,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 94506 treesize of output 93994