./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/jain_5-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/jain_5-1.c -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 ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-18 23:01:00,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 23:01:00,536 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 23:01:00,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 23:01:00,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 23:01:00,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 23:01:00,569 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 23:01:00,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 23:01:00,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 23:01:00,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 23:01:00,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 23:01:00,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 23:01:00,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 23:01:00,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 23:01:00,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 23:01:00,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 23:01:00,578 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 23:01:00,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 23:01:00,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 23:01:00,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 23:01:00,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 23:01:00,583 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 23:01:00,584 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 23:01:00,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 23:01:00,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 23:01:00,587 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 23:01:00,587 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 23:01:00,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 23:01:00,588 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 23:01:00,589 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 23:01:00,589 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 23:01:00,590 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 23:01:00,590 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 23:01:00,591 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 23:01:00,592 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 23:01:00,592 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 23:01:00,592 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 23:01:00,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 23:01:00,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 23:01:00,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 23:01:00,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 23:01:00,595 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 23:01:00,611 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 23:01:00,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 23:01:00,612 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 23:01:00,612 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 23:01:00,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 23:01:00,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 23:01:00,613 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 23:01:00,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 23:01:00,613 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 23:01:00,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 23:01:00,614 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 23:01:00,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 23:01:00,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 23:01:00,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 23:01:00,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 23:01:00,615 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 23:01:00,616 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 23:01:00,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 23:01:00,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 23:01:00,616 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 23:01:00,616 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 23:01:00,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:00,617 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 23:01:00,617 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 23:01:00,617 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 23:01:00,617 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 23:01:00,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 23:01:00,618 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 23:01:00,618 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 23:01:00,618 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 23:01:00,618 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 23:01:00,618 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 23:01:00,618 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ce25b6bd0efa145a105c85604d85a015d6e6bffce3769a218e2fa9a5cf656dc9 [2023-02-18 23:01:00,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 23:01:00,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 23:01:00,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 23:01:00,822 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 23:01:00,822 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 23:01:00,823 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_5-1.c [2023-02-18 23:01:01,998 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 23:01:02,182 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 23:01:02,183 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-1.c [2023-02-18 23:01:02,188 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22d7f0aa/f2b103c52ce04d0db63e5b7d73106299/FLAG96d1bdd2b [2023-02-18 23:01:02,203 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f22d7f0aa/f2b103c52ce04d0db63e5b7d73106299 [2023-02-18 23:01:02,205 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 23:01:02,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 23:01:02,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:02,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 23:01:02,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 23:01:02,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29125ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02, skipping insertion in model container [2023-02-18 23:01:02,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 23:01:02,239 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 23:01:02,379 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/bitvector/jain_5-1.c[665,678] [2023-02-18 23:01:02,387 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:02,398 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 23:01:02,411 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/bitvector/jain_5-1.c[665,678] [2023-02-18 23:01:02,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 23:01:02,423 INFO L208 MainTranslator]: Completed translation [2023-02-18 23:01:02,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02 WrapperNode [2023-02-18 23:01:02,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 23:01:02,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:02,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 23:01:02,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 23:01:02,431 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,437 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,450 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 33 [2023-02-18 23:01:02,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 23:01:02,452 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 23:01:02,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 23:01:02,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 23:01:02,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,459 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,471 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 23:01:02,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 23:01:02,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 23:01:02,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 23:01:02,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (1/1) ... [2023-02-18 23:01:02,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 23:01:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:02,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-18 23:01:02,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-18 23:01:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 23:01:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 23:01:02,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 23:01:02,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 23:01:02,603 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 23:01:02,605 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 23:01:02,729 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 23:01:02,734 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 23:01:02,738 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 23:01:02,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:02 BoogieIcfgContainer [2023-02-18 23:01:02,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 23:01:02,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 23:01:02,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 23:01:02,745 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 23:01:02,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 11:01:02" (1/3) ... [2023-02-18 23:01:02,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cea2e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:02, skipping insertion in model container [2023-02-18 23:01:02,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 11:01:02" (2/3) ... [2023-02-18 23:01:02,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cea2e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:01:02, skipping insertion in model container [2023-02-18 23:01:02,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:01:02" (3/3) ... [2023-02-18 23:01:02,747 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5-1.c [2023-02-18 23:01:02,761 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 23:01:02,762 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2023-02-18 23:01:02,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 23:01:02,811 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;@3ce232c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 23:01:02,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-02-18 23:01:02,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:02,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-02-18 23:01:02,820 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:02,820 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-02-18 23:01:02,821 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)] === [2023-02-18 23:01:02,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:02,825 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2023-02-18 23:01:02,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:02,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073571914] [2023-02-18 23:01:02,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:02,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:02,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:02,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:02,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073571914] [2023-02-18 23:01:02,995 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073571914] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:02,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:02,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:02,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158492539] [2023-02-18 23:01:02,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:03,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:03,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:03,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:03,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,029 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:03,058 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2023-02-18 23:01:03,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:03,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2023-02-18 23:01:03,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:03,066 INFO L225 Difference]: With dead ends: 34 [2023-02-18 23:01:03,067 INFO L226 Difference]: Without dead ends: 17 [2023-02-18 23:01:03,074 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,077 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:03,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:03,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-18 23:01:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2023-02-18 23:01:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-18 23:01:03,134 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 4 [2023-02-18 23:01:03,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:03,134 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-18 23:01:03,135 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,135 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-18 23:01:03,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 23:01:03,135 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:03,135 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 23:01:03,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 23:01:03,136 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:03,137 INFO L85 PathProgramCache]: Analyzing trace with hash 28699721, now seen corresponding path program 1 times [2023-02-18 23:01:03,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:03,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056121302] [2023-02-18 23:01:03,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:03,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056121302] [2023-02-18 23:01:03,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056121302] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:03,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:03,212 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:03,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672054415] [2023-02-18 23:01:03,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:03,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:03,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:03,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:03,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,214 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:03,244 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-18 23:01:03,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:03,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-18 23:01:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:03,245 INFO L225 Difference]: With dead ends: 17 [2023-02-18 23:01:03,246 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 23:01:03,246 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,247 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:03,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 15 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:03,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 23:01:03,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 23:01:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-18 23:01:03,251 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 5 [2023-02-18 23:01:03,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:03,252 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-18 23:01:03,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-18 23:01:03,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 23:01:03,252 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:03,252 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 23:01:03,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 23:01:03,253 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:03,254 INFO L85 PathProgramCache]: Analyzing trace with hash 889691398, now seen corresponding path program 1 times [2023-02-18 23:01:03,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:03,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051045082] [2023-02-18 23:01:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:03,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051045082] [2023-02-18 23:01:03,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051045082] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:03,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:03,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:03,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130362700] [2023-02-18 23:01:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:03,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:03,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:03,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:03,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,325 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:03,346 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2023-02-18 23:01:03,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:03,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-18 23:01:03,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:03,347 INFO L225 Difference]: With dead ends: 16 [2023-02-18 23:01:03,347 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 23:01:03,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,349 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:03,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 6 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 23:01:03,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-18 23:01:03,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-18 23:01:03,359 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2023-02-18 23:01:03,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:03,359 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-18 23:01:03,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-18 23:01:03,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 23:01:03,360 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:03,361 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:01:03,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 23:01:03,361 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:03,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:03,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629611, now seen corresponding path program 1 times [2023-02-18 23:01:03,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:03,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070561953] [2023-02-18 23:01:03,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:03,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:03,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070561953] [2023-02-18 23:01:03,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070561953] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:03,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 23:01:03,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 23:01:03,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454954050] [2023-02-18 23:01:03,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:03,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 23:01:03,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:03,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 23:01:03,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,409 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:03,427 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-18 23:01:03,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 23:01:03,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 23:01:03,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:03,429 INFO L225 Difference]: With dead ends: 18 [2023-02-18 23:01:03,430 INFO L226 Difference]: Without dead ends: 17 [2023-02-18 23:01:03,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 23:01:03,432 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:03,433 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:03,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2023-02-18 23:01:03,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2023-02-18 23:01:03,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2023-02-18 23:01:03,441 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 7 [2023-02-18 23:01:03,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:03,442 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2023-02-18 23:01:03,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2023-02-18 23:01:03,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 23:01:03,443 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:03,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:01:03,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 23:01:03,443 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:03,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:03,446 INFO L85 PathProgramCache]: Analyzing trace with hash -851677744, now seen corresponding path program 1 times [2023-02-18 23:01:03,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:03,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636436952] [2023-02-18 23:01:03,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:03,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,508 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:03,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636436952] [2023-02-18 23:01:03,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636436952] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:03,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [487194285] [2023-02-18 23:01:03,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:03,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:03,543 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:03,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-18 23:01:03,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:01:03,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:03,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,642 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-18 23:01:03,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [487194285] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 23:01:03,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-18 23:01:03,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2023-02-18 23:01:03,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137357076] [2023-02-18 23:01:03,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 23:01:03,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-18 23:01:03,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:03,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-18 23:01:03,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-18 23:01:03,644 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:03,670 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2023-02-18 23:01:03,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:01:03,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-18 23:01:03,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:03,671 INFO L225 Difference]: With dead ends: 17 [2023-02-18 23:01:03,671 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 23:01:03,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-02-18 23:01:03,673 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:03,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 14 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 23:01:03,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 23:01:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-18 23:01:03,676 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 11 [2023-02-18 23:01:03,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:03,677 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-18 23:01:03,677 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:03,677 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-18 23:01:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-02-18 23:01:03,678 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:03,678 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 23:01:03,687 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:03,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:03,885 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:03,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:03,886 INFO L85 PathProgramCache]: Analyzing trace with hash -632206243, now seen corresponding path program 1 times [2023-02-18 23:01:03,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:03,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382217762] [2023-02-18 23:01:03,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:03,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:03,965 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:03,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:03,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382217762] [2023-02-18 23:01:03,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382217762] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:03,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472519503] [2023-02-18 23:01:03,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:03,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:03,972 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:03,975 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-18 23:01:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:04,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-18 23:01:04,010 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,052 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:04,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472519503] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:04,077 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:04,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2023-02-18 23:01:04,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255846154] [2023-02-18 23:01:04,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:04,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-18 23:01:04,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:04,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-18 23:01:04,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=62, Unknown=0, NotChecked=0, Total=110 [2023-02-18 23:01:04,079 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 11 states, 10 states have (on average 3.4) 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) [2023-02-18 23:01:04,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:04,150 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-02-18 23:01:04,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-18 23:01:04,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 3.4) 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 12 [2023-02-18 23:01:04,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:04,154 INFO L225 Difference]: With dead ends: 30 [2023-02-18 23:01:04,154 INFO L226 Difference]: Without dead ends: 29 [2023-02-18 23:01:04,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2023-02-18 23:01:04,155 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:04,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:04,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-02-18 23:01:04,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2023-02-18 23:01:04,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 27 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:04,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2023-02-18 23:01:04,165 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 12 [2023-02-18 23:01:04,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:04,165 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2023-02-18 23:01:04,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 3.4) 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) [2023-02-18 23:01:04,166 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2023-02-18 23:01:04,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-18 23:01:04,166 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:04,167 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-18 23:01:04,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:04,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-02-18 23:01:04,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:04,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:04,374 INFO L85 PathProgramCache]: Analyzing trace with hash -1959809281, now seen corresponding path program 1 times [2023-02-18 23:01:04,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:04,374 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487209384] [2023-02-18 23:01:04,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:04,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:04,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:04,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:04,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487209384] [2023-02-18 23:01:04,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487209384] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:04,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152512556] [2023-02-18 23:01:04,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:04,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:04,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:04,413 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:04,414 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-18 23:01:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:04,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-18 23:01:04,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:04,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:04,490 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152512556] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:04,491 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:04,491 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 23:01:04,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166871672] [2023-02-18 23:01:04,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:04,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 23:01:04,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 23:01:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:01:04,493 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:04,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:04,520 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2023-02-18 23:01:04,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 23:01:04,521 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 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 14 [2023-02-18 23:01:04,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:04,521 INFO L225 Difference]: With dead ends: 39 [2023-02-18 23:01:04,521 INFO L226 Difference]: Without dead ends: 38 [2023-02-18 23:01:04,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 23:01:04,522 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 3 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:04,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 19 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 23:01:04,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-18 23:01:04,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2023-02-18 23:01:04,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 35 states have (on average 1.0857142857142856) internal successors, (38), 36 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:04,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 38 transitions. [2023-02-18 23:01:04,526 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 38 transitions. Word has length 14 [2023-02-18 23:01:04,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:04,526 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 38 transitions. [2023-02-18 23:01:04,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.4) internal successors, (27), 6 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:04,526 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 38 transitions. [2023-02-18 23:01:04,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 23:01:04,527 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:04,527 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1] [2023-02-18 23:01:04,533 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-18 23:01:04,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:04,728 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)] === [2023-02-18 23:01:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:04,728 INFO L85 PathProgramCache]: Analyzing trace with hash 907614941, now seen corresponding path program 2 times [2023-02-18 23:01:04,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:04,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450187510] [2023-02-18 23:01:04,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:04,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:04,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:04,870 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:04,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450187510] [2023-02-18 23:01:04,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [450187510] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:04,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124200608] [2023-02-18 23:01:04,871 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:01:04,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:04,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:04,873 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:04,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-18 23:01:04,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:01:04,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:04,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-18 23:01:04,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:04,969 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:04,969 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:05,041 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:05,042 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124200608] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:05,042 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:05,042 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2023-02-18 23:01:05,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678131017] [2023-02-18 23:01:05,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:05,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-02-18 23:01:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:05,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-02-18 23:01:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169, Invalid=337, Unknown=0, NotChecked=0, Total=506 [2023-02-18 23:01:05,045 INFO L87 Difference]: Start difference. First operand 37 states and 38 transitions. Second operand has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:05,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:05,190 INFO L93 Difference]: Finished difference Result 59 states and 62 transitions. [2023-02-18 23:01:05,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-18 23:01:05,192 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 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 26 [2023-02-18 23:01:05,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:05,195 INFO L225 Difference]: With dead ends: 59 [2023-02-18 23:01:05,195 INFO L226 Difference]: Without dead ends: 58 [2023-02-18 23:01:05,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=325, Invalid=605, Unknown=0, NotChecked=0, Total=930 [2023-02-18 23:01:05,197 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 21 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:05,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 60 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:01:05,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-18 23:01:05,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 56. [2023-02-18 23:01:05,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 54 states have (on average 1.0740740740740742) internal successors, (58), 55 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:05,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2023-02-18 23:01:05,216 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 26 [2023-02-18 23:01:05,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:05,217 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2023-02-18 23:01:05,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 23 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:05,217 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2023-02-18 23:01:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-18 23:01:05,219 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:05,219 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 1, 1, 1] [2023-02-18 23:01:05,228 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:05,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:05,426 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:05,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:05,426 INFO L85 PathProgramCache]: Analyzing trace with hash 49653483, now seen corresponding path program 2 times [2023-02-18 23:01:05,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:05,426 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023770697] [2023-02-18 23:01:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:05,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:05,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:05,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023770697] [2023-02-18 23:01:05,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023770697] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:05,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881973450] [2023-02-18 23:01:05,576 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 23:01:05,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:05,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:05,577 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:05,609 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-18 23:01:05,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 23:01:05,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:05,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 11 conjunts are in the unsatisfiable core [2023-02-18 23:01:05,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:05,753 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 30 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:05,753 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:05,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881973450] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:05,864 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:05,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-18 23:01:05,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893107287] [2023-02-18 23:01:05,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:05,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2023-02-18 23:01:05,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:05,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2023-02-18 23:01:05,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2023-02-18 23:01:05,866 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:05,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:05,994 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2023-02-18 23:01:05,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-18 23:01:05,995 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 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 35 [2023-02-18 23:01:05,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:05,998 INFO L225 Difference]: With dead ends: 56 [2023-02-18 23:01:05,998 INFO L226 Difference]: Without dead ends: 55 [2023-02-18 23:01:05,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 51 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=365, Invalid=895, Unknown=0, NotChecked=0, Total=1260 [2023-02-18 23:01:06,001 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 25 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:06,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 96 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:01:06,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-02-18 23:01:06,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2023-02-18 23:01:06,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.0185185185185186) internal successors, (55), 54 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) [2023-02-18 23:01:06,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 55 transitions. [2023-02-18 23:01:06,015 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 55 transitions. Word has length 35 [2023-02-18 23:01:06,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:06,015 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 55 transitions. [2023-02-18 23:01:06,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.6153846153846154) internal successors, (94), 27 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 55 transitions. [2023-02-18 23:01:06,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-18 23:01:06,018 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:06,018 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1] [2023-02-18 23:01:06,028 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:06,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:06,225 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:06,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:06,225 INFO L85 PathProgramCache]: Analyzing trace with hash -739338275, now seen corresponding path program 3 times [2023-02-18 23:01:06,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:06,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663305070] [2023-02-18 23:01:06,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:06,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:06,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:06,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663305070] [2023-02-18 23:01:06,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663305070] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:06,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039282139] [2023-02-18 23:01:06,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 23:01:06,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:06,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:06,488 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:06,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-18 23:01:06,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-18 23:01:06,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:06,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-18 23:01:06,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:06,737 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:07,030 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 0 proven. 168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:07,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039282139] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:07,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:07,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 46 [2023-02-18 23:01:07,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044032163] [2023-02-18 23:01:07,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:07,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-02-18 23:01:07,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:07,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-02-18 23:01:07,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=591, Invalid=1571, Unknown=0, NotChecked=0, Total=2162 [2023-02-18 23:01:07,034 INFO L87 Difference]: Start difference. First operand 55 states and 55 transitions. Second operand has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:07,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:07,572 INFO L93 Difference]: Finished difference Result 112 states and 119 transitions. [2023-02-18 23:01:07,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-18 23:01:07,573 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 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 54 [2023-02-18 23:01:07,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:07,573 INFO L225 Difference]: With dead ends: 112 [2023-02-18 23:01:07,573 INFO L226 Difference]: Without dead ends: 111 [2023-02-18 23:01:07,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1522 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1316, Invalid=2974, Unknown=0, NotChecked=0, Total=4290 [2023-02-18 23:01:07,576 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 73 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:07,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 134 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 23:01:07,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-02-18 23:01:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-02-18 23:01:07,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:07,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2023-02-18 23:01:07,583 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 54 [2023-02-18 23:01:07,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:07,583 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2023-02-18 23:01:07,584 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 3.4782608695652173) internal successors, (160), 47 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:07,584 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2023-02-18 23:01:07,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-18 23:01:07,585 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:07,585 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1] [2023-02-18 23:01:07,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:07,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:07,791 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:07,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:07,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1980830173, now seen corresponding path program 4 times [2023-02-18 23:01:07,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:07,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738634040] [2023-02-18 23:01:07,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:07,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:07,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:08,493 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:08,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:08,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738634040] [2023-02-18 23:01:08,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738634040] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:08,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087852818] [2023-02-18 23:01:08,494 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 23:01:08,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:08,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:08,497 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:08,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-18 23:01:08,572 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 23:01:08,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:08,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 33 conjunts are in the unsatisfiable core [2023-02-18 23:01:08,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:09,226 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:09,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:10,200 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 780 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:10,201 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087852818] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:10,201 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:10,201 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-18 23:01:10,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392149597] [2023-02-18 23:01:10,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:10,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-18 23:01:10,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:10,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-18 23:01:10,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2155, Invalid=6775, Unknown=0, NotChecked=0, Total=8930 [2023-02-18 23:01:10,209 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:12,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:12,540 INFO L93 Difference]: Finished difference Result 224 states and 239 transitions. [2023-02-18 23:01:12,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-18 23:01:12,540 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 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 110 [2023-02-18 23:01:12,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:12,542 INFO L225 Difference]: With dead ends: 224 [2023-02-18 23:01:12,542 INFO L226 Difference]: Without dead ends: 223 [2023-02-18 23:01:12,546 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 136 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7098 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=5452, Invalid=13454, Unknown=0, NotChecked=0, Total=18906 [2023-02-18 23:01:12,546 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 359 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:12,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 265 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 23:01:12,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-02-18 23:01:12,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 223. [2023-02-18 23:01:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 222 states have (on average 1.0045045045045045) internal successors, (223), 222 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:12,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 223 transitions. [2023-02-18 23:01:12,561 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 223 transitions. Word has length 110 [2023-02-18 23:01:12,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:12,561 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 223 transitions. [2023-02-18 23:01:12,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 3.4893617021276597) internal successors, (328), 95 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:12,562 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 223 transitions. [2023-02-18 23:01:12,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-02-18 23:01:12,564 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:12,564 INFO L195 NwaCegarLoop]: trace histogram [32, 32, 31, 31, 31, 31, 31, 1, 1, 1] [2023-02-18 23:01:12,572 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:12,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:12,771 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:12,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:12,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1892416035, now seen corresponding path program 5 times [2023-02-18 23:01:12,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:12,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290423399] [2023-02-18 23:01:12,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:12,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:15,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290423399] [2023-02-18 23:01:15,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290423399] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:15,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447136107] [2023-02-18 23:01:15,389 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 23:01:15,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:15,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:15,397 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:15,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-18 23:01:15,551 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 23:01:15,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:15,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 65 conjunts are in the unsatisfiable core [2023-02-18 23:01:15,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:17,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:17,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:01:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3348 backedges. 0 proven. 3348 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:21,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1447136107] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:01:21,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:01:21,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 190 [2023-02-18 23:01:21,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617145219] [2023-02-18 23:01:21,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:01:21,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 191 states [2023-02-18 23:01:21,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:01:21,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 191 interpolants. [2023-02-18 23:01:21,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8163, Invalid=28127, Unknown=0, NotChecked=0, Total=36290 [2023-02-18 23:01:21,196 INFO L87 Difference]: Start difference. First operand 223 states and 223 transitions. Second operand has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:32,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:01:32,057 INFO L93 Difference]: Finished difference Result 448 states and 479 transitions. [2023-02-18 23:01:32,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-18 23:01:32,058 INFO L78 Accepts]: Start accepts. Automaton has has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 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 222 [2023-02-18 23:01:32,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:01:32,060 INFO L225 Difference]: With dead ends: 448 [2023-02-18 23:01:32,060 INFO L226 Difference]: Without dead ends: 447 [2023-02-18 23:01:32,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 280 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30538 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=22172, Invalid=57070, Unknown=0, NotChecked=0, Total=79242 [2023-02-18 23:01:32,066 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1851 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 621 mSolverCounterSat, 465 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 621 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:01:32,066 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 531 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 621 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-18 23:01:32,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2023-02-18 23:01:32,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 447. [2023-02-18 23:01:32,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 446 states have (on average 1.0022421524663676) internal successors, (447), 446 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:32,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 447 transitions. [2023-02-18 23:01:32,090 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 447 transitions. Word has length 222 [2023-02-18 23:01:32,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:01:32,091 INFO L495 AbstractCegarLoop]: Abstraction has 447 states and 447 transitions. [2023-02-18 23:01:32,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 191 states, 190 states have (on average 3.4947368421052634) internal successors, (664), 191 states have internal predecessors, (664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:01:32,091 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 447 transitions. [2023-02-18 23:01:32,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 447 [2023-02-18 23:01:32,096 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:01:32,096 INFO L195 NwaCegarLoop]: trace histogram [64, 64, 63, 63, 63, 63, 63, 1, 1, 1] [2023-02-18 23:01:32,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-18 23:01:32,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-02-18 23:01:32,303 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:01:32,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:01:32,304 INFO L85 PathProgramCache]: Analyzing trace with hash -319689251, now seen corresponding path program 6 times [2023-02-18 23:01:32,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:01:32,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345660708] [2023-02-18 23:01:32,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:01:32,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:01:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:01:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:41,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:01:41,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345660708] [2023-02-18 23:01:41,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345660708] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:01:41,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793500941] [2023-02-18 23:01:41,487 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 23:01:41,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:01:41,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:01:41,488 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:01:41,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-18 23:01:41,859 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-18 23:01:41,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 23:01:41,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 977 conjuncts, 129 conjunts are in the unsatisfiable core [2023-02-18 23:01:41,870 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:01:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:01:50,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:02:03,410 INFO L134 CoverageAnalysis]: Checked inductivity of 13860 backedges. 0 proven. 13860 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:02:03,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793500941] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:02:03,410 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:02:03,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 382 [2023-02-18 23:02:03,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014670209] [2023-02-18 23:02:03,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:02:03,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2023-02-18 23:02:03,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:02:03,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2023-02-18 23:02:03,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31699, Invalid=114607, Unknown=0, NotChecked=0, Total=146306 [2023-02-18 23:02:03,428 INFO L87 Difference]: Start difference. First operand 447 states and 447 transitions. Second operand has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:03:08,049 INFO L93 Difference]: Finished difference Result 896 states and 959 transitions. [2023-02-18 23:03:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-18 23:03:08,050 INFO L78 Accepts]: Start accepts. Automaton has has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 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 446 [2023-02-18 23:03:08,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:03:08,055 INFO L225 Difference]: With dead ends: 896 [2023-02-18 23:03:08,055 INFO L226 Difference]: Without dead ends: 895 [2023-02-18 23:03:08,069 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1205 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 568 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126570 ImplicationChecksByTransitivity, 84.0s TimeCoverageRelationStatistics Valid=89404, Invalid=234926, Unknown=0, NotChecked=0, Total=324330 [2023-02-18 23:03:08,070 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7945 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 1989 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7945 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 3249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1989 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-02-18 23:03:08,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7945 Valid, 1092 Invalid, 3249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1989 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-02-18 23:03:08,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 895 states. [2023-02-18 23:03:08,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 895 to 895. [2023-02-18 23:03:08,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 895 states, 894 states have (on average 1.0011185682326622) internal successors, (895), 894 states have internal predecessors, (895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 895 states to 895 states and 895 transitions. [2023-02-18 23:03:08,131 INFO L78 Accepts]: Start accepts. Automaton has 895 states and 895 transitions. Word has length 446 [2023-02-18 23:03:08,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:03:08,132 INFO L495 AbstractCegarLoop]: Abstraction has 895 states and 895 transitions. [2023-02-18 23:03:08,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 3.4973821989528795) internal successors, (1336), 383 states have internal predecessors, (1336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:03:08,133 INFO L276 IsEmpty]: Start isEmpty. Operand 895 states and 895 transitions. [2023-02-18 23:03:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 895 [2023-02-18 23:03:08,153 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:03:08,153 INFO L195 NwaCegarLoop]: trace histogram [128, 128, 127, 127, 127, 127, 127, 1, 1, 1] [2023-02-18 23:03:08,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-18 23:03:08,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-02-18 23:03:08,361 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:03:08,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:03:08,362 INFO L85 PathProgramCache]: Analyzing trace with hash 374193629, now seen corresponding path program 7 times [2023-02-18 23:03:08,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:03:08,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850847038] [2023-02-18 23:03:08,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:03:08,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:03:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:03:44,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 23:03:44,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850847038] [2023-02-18 23:03:44,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850847038] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 23:03:44,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115538255] [2023-02-18 23:03:44,287 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 23:03:44,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 23:03:44,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 23:03:44,293 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 23:03:44,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-18 23:03:44,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 23:03:44,570 INFO L263 TraceCheckSpWp]: Trace formula consists of 1937 conjuncts, 257 conjunts are in the unsatisfiable core [2023-02-18 23:03:44,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 23:04:17,125 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:04:17,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 23:05:11,723 INFO L134 CoverageAnalysis]: Checked inductivity of 56388 backedges. 0 proven. 56388 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 23:05:11,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115538255] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 23:05:11,724 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 23:05:11,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 766 [2023-02-18 23:05:11,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002531264] [2023-02-18 23:05:11,724 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 23:05:11,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 767 states [2023-02-18 23:05:11,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 23:05:11,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 767 interpolants. [2023-02-18 23:05:11,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124851, Invalid=462671, Unknown=0, NotChecked=0, Total=587522 [2023-02-18 23:05:11,768 INFO L87 Difference]: Start difference. First operand 895 states and 895 transitions. Second operand has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 23:12:50,309 INFO L93 Difference]: Finished difference Result 1792 states and 1919 transitions. [2023-02-18 23:12:50,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2023-02-18 23:12:50,313 INFO L78 Accepts]: Start accepts. Automaton has has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 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 894 [2023-02-18 23:12:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 23:12:50,321 INFO L225 Difference]: With dead ends: 1792 [2023-02-18 23:12:50,321 INFO L226 Difference]: Without dead ends: 1791 [2023-02-18 23:12:50,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2421 GetRequests, 1277 SyntacticMatches, 0 SemanticMatches, 1144 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 515242 ImplicationChecksByTransitivity, 510.4s TimeCoverageRelationStatistics Valid=359036, Invalid=953134, Unknown=0, NotChecked=0, Total=1312170 [2023-02-18 23:12:50,408 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 33089 mSDsluCounter, 2116 mSDsCounter, 0 mSdLazyCounter, 2482 mSolverCounterSat, 8275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33089 SdHoareTripleChecker+Valid, 2122 SdHoareTripleChecker+Invalid, 10757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8275 IncrementalHoareTripleChecker+Valid, 2482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-02-18 23:12:50,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33089 Valid, 2122 Invalid, 10757 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8275 Valid, 2482 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-02-18 23:12:50,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1791 states. [2023-02-18 23:12:50,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1791 to 1791. [2023-02-18 23:12:50,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1791 states, 1790 states have (on average 1.000558659217877) internal successors, (1791), 1790 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:50,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1791 states to 1791 states and 1791 transitions. [2023-02-18 23:12:50,582 INFO L78 Accepts]: Start accepts. Automaton has 1791 states and 1791 transitions. Word has length 894 [2023-02-18 23:12:50,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 23:12:50,583 INFO L495 AbstractCegarLoop]: Abstraction has 1791 states and 1791 transitions. [2023-02-18 23:12:50,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 767 states, 766 states have (on average 3.4986945169712795) internal successors, (2680), 767 states have internal predecessors, (2680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 23:12:50,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1791 states and 1791 transitions. [2023-02-18 23:12:50,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1791 [2023-02-18 23:12:50,599 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 23:12:50,600 INFO L195 NwaCegarLoop]: trace histogram [256, 256, 255, 255, 255, 255, 255, 1, 1, 1] [2023-02-18 23:12:50,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-18 23:12:50,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-02-18 23:12:50,801 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2023-02-18 23:12:50,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 23:12:50,802 INFO L85 PathProgramCache]: Analyzing trace with hash 545611229, now seen corresponding path program 8 times [2023-02-18 23:12:50,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 23:12:50,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128687101] [2023-02-18 23:12:50,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 23:12:50,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 23:12:53,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat