./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 26d01a9c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 --- Real Ultimate output --- This is Ultimate 0.2.2-?-26d01a9 [2023-02-18 07:48:53,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-18 07:48:53,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-18 07:48:53,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-18 07:48:53,040 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-18 07:48:53,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-18 07:48:53,044 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-18 07:48:53,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-18 07:48:53,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-18 07:48:53,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-18 07:48:53,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-18 07:48:53,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-18 07:48:53,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-18 07:48:53,054 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-18 07:48:53,055 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-18 07:48:53,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-18 07:48:53,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-18 07:48:53,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-18 07:48:53,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-18 07:48:53,062 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-18 07:48:53,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-18 07:48:53,064 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-18 07:48:53,065 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-18 07:48:53,066 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-18 07:48:53,072 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-18 07:48:53,072 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-18 07:48:53,072 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-18 07:48:53,073 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-18 07:48:53,074 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-18 07:48:53,074 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-18 07:48:53,075 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-18 07:48:53,076 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-18 07:48:53,077 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-18 07:48:53,077 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-18 07:48:53,078 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-18 07:48:53,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-18 07:48:53,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-18 07:48:53,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-18 07:48:53,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-18 07:48:53,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-18 07:48:53,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-18 07:48:53,088 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-18 07:48:53,110 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-18 07:48:53,111 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-18 07:48:53,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-18 07:48:53,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-18 07:48:53,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-18 07:48:53,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-18 07:48:53,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-18 07:48:53,112 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-18 07:48:53,113 INFO L138 SettingsManager]: * Use SBE=true [2023-02-18 07:48:53,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-18 07:48:53,113 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-18 07:48:53,113 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-18 07:48:53,114 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-18 07:48:53,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-18 07:48:53,115 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-18 07:48:53,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:48:53,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-18 07:48:53,116 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-18 07:48:53,116 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-18 07:48:53,116 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-18 07:48:53,117 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-18 07:48:53,118 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 366d45071e2a444aa552f231e24508af3eb704e415c6b738128a0398e54b53a7 [2023-02-18 07:48:53,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-18 07:48:53,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-18 07:48:53,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-18 07:48:53,320 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-18 07:48:53,320 INFO L275 PluginConnector]: CDTParser initialized [2023-02-18 07:48:53,321 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-18 07:48:54,236 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-18 07:48:54,430 INFO L351 CDTParser]: Found 1 translation units. [2023-02-18 07:48:54,430 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i [2023-02-18 07:48:54,437 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c747e0a0b/fdecaf8e1d164e79a679a3d93e087c23/FLAG04a0f3fe7 [2023-02-18 07:48:54,454 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c747e0a0b/fdecaf8e1d164e79a679a3d93e087c23 [2023-02-18 07:48:54,456 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-18 07:48:54,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-18 07:48:54,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-18 07:48:54,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-18 07:48:54,461 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-18 07:48:54,462 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,463 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40da56f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54, skipping insertion in model container [2023-02-18 07:48:54,463 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-18 07:48:54,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-18 07:48:54,625 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i[873,886] [2023-02-18 07:48:54,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:48:54,644 INFO L203 MainTranslator]: Completed pre-run [2023-02-18 07:48:54,653 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark38_conjunctive.i[873,886] [2023-02-18 07:48:54,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-18 07:48:54,664 INFO L208 MainTranslator]: Completed translation [2023-02-18 07:48:54,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54 WrapperNode [2023-02-18 07:48:54,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-18 07:48:54,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-18 07:48:54,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-18 07:48:54,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-18 07:48:54,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,675 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,686 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 40 [2023-02-18 07:48:54,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-18 07:48:54,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-18 07:48:54,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-18 07:48:54,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-18 07:48:54,693 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,701 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,706 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,707 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-18 07:48:54,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-18 07:48:54,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-18 07:48:54,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-18 07:48:54,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (1/1) ... [2023-02-18 07:48:54,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-18 07:48:54,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:54,737 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 07:48:54,739 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 07:48:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-18 07:48:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-18 07:48:54,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-18 07:48:54,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-18 07:48:54,822 INFO L235 CfgBuilder]: Building ICFG [2023-02-18 07:48:54,823 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-18 07:48:54,897 INFO L276 CfgBuilder]: Performing block encoding [2023-02-18 07:48:54,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-18 07:48:54,901 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-18 07:48:54,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:48:54 BoogieIcfgContainer [2023-02-18 07:48:54,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-18 07:48:54,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-18 07:48:54,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-18 07:48:54,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-18 07:48:54,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.02 07:48:54" (1/3) ... [2023-02-18 07:48:54,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c60c0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:48:54, skipping insertion in model container [2023-02-18 07:48:54,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.02 07:48:54" (2/3) ... [2023-02-18 07:48:54,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c60c0ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 07:48:54, skipping insertion in model container [2023-02-18 07:48:54,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 07:48:54" (3/3) ... [2023-02-18 07:48:54,907 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark38_conjunctive.i [2023-02-18 07:48:54,918 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-18 07:48:54,918 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-02-18 07:48:54,945 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-18 07:48:54,950 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;@2d0d7e1d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-18 07:48:54,950 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-02-18 07:48:54,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:54,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 07:48:54,958 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:54,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 07:48:54,960 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:54,963 INFO L85 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2023-02-18 07:48:54,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:54,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061915044] [2023-02-18 07:48:54,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:54,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,070 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 07:48:55,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061915044] [2023-02-18 07:48:55,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061915044] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,071 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,071 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 07:48:55,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071666077] [2023-02-18 07:48:55,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:48:55,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:48:55,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:48:55,093 INFO L87 Difference]: Start difference. First operand has 21 states, 14 states have (on average 1.7142857142857142) internal successors, (24), 20 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) 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 07:48:55,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,110 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-02-18 07:48:55,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:48:55,112 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 07:48:55,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,117 INFO L225 Difference]: With dead ends: 30 [2023-02-18 07:48:55,117 INFO L226 Difference]: Without dead ends: 15 [2023-02-18 07:48:55,119 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 07:48:55,131 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 16 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-02-18 07:48:55,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-02-18 07:48:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.5) 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 07:48:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-02-18 07:48:55,149 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2023-02-18 07:48:55,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,150 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2023-02-18 07:48:55,150 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 07:48:55,150 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-02-18 07:48:55,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-18 07:48:55,150 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,150 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-18 07:48:55,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-18 07:48:55,151 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,151 INFO L85 PathProgramCache]: Analyzing trace with hash 28695922, now seen corresponding path program 1 times [2023-02-18 07:48:55,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402660344] [2023-02-18 07:48:55,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,188 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 07:48:55,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402660344] [2023-02-18 07:48:55,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402660344] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,189 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 07:48:55,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834081632] [2023-02-18 07:48:55,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:48:55,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:48:55,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:48:55,191 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 07:48:55,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,225 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2023-02-18 07:48:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:48:55,226 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 07:48:55,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,226 INFO L225 Difference]: With dead ends: 26 [2023-02-18 07:48:55,227 INFO L226 Difference]: Without dead ends: 25 [2023-02-18 07:48:55,227 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 07:48:55,228 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 20 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-02-18 07:48:55,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 17. [2023-02-18 07:48:55,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 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 07:48:55,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2023-02-18 07:48:55,232 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 5 [2023-02-18 07:48:55,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,232 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2023-02-18 07:48:55,232 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 07:48:55,232 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2023-02-18 07:48:55,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 07:48:55,233 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,233 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-18 07:48:55,233 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,234 INFO L85 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2023-02-18 07:48:55,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234085460] [2023-02-18 07:48:55,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,291 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 07:48:55,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234085460] [2023-02-18 07:48:55,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234085460] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,300 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 07:48:55,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421760318] [2023-02-18 07:48:55,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:48:55,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:48:55,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:48:55,302 INFO L87 Difference]: Start difference. First operand 17 states and 18 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 07:48:55,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,317 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2023-02-18 07:48:55,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:48:55,318 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 07:48:55,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,318 INFO L225 Difference]: With dead ends: 22 [2023-02-18 07:48:55,318 INFO L226 Difference]: Without dead ends: 21 [2023-02-18 07:48:55,319 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 07:48:55,320 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 3 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-02-18 07:48:55,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2023-02-18 07:48:55,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 18 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 07:48:55,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2023-02-18 07:48:55,326 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 6 [2023-02-18 07:48:55,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,327 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2023-02-18 07:48:55,327 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 07:48:55,327 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2023-02-18 07:48:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-18 07:48:55,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-18 07:48:55,328 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,328 INFO L85 PathProgramCache]: Analyzing trace with hash 889573643, now seen corresponding path program 1 times [2023-02-18 07:48:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490731798] [2023-02-18 07:48:55,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,363 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 07:48:55,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490731798] [2023-02-18 07:48:55,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490731798] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-18 07:48:55,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199157566] [2023-02-18 07:48:55,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-18 07:48:55,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-18 07:48:55,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-18 07:48:55,366 INFO L87 Difference]: Start difference. First operand 19 states and 20 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 07:48:55,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,389 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2023-02-18 07:48:55,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-18 07:48:55,390 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 07:48:55,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,390 INFO L225 Difference]: With dead ends: 25 [2023-02-18 07:48:55,392 INFO L226 Difference]: Without dead ends: 22 [2023-02-18 07:48:55,392 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 07:48:55,394 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 6 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 21 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 07:48:55,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 21 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-18 07:48:55,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2023-02-18 07:48:55,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 17 states have internal predecessors, (18), 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 07:48:55,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-18 07:48:55,400 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2023-02-18 07:48:55,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,401 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-18 07:48:55,401 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 07:48:55,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-18 07:48:55,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-18 07:48:55,401 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,401 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-18 07:48:55,402 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2023-02-18 07:48:55,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328885204] [2023-02-18 07:48:55,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,464 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 07:48:55,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328885204] [2023-02-18 07:48:55,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328885204] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:48:55,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014788797] [2023-02-18 07:48:55,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:48:55,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:48:55,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:48:55,469 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:55,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,487 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2023-02-18 07:48:55,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:48:55,488 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-18 07:48:55,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,488 INFO L225 Difference]: With dead ends: 18 [2023-02-18 07:48:55,489 INFO L226 Difference]: Without dead ends: 16 [2023-02-18 07:48:55,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:48:55,490 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-02-18 07:48:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-02-18 07:48:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-02-18 07:48:55,500 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2023-02-18 07:48:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,501 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-02-18 07:48:55,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-02-18 07:48:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-18 07:48:55,501 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,501 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-18 07:48:55,502 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2023-02-18 07:48:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823046296] [2023-02-18 07:48:55,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,552 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 07:48:55,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823046296] [2023-02-18 07:48:55,553 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823046296] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-18 07:48:55,553 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-18 07:48:55,553 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-18 07:48:55,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485830197] [2023-02-18 07:48:55,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-18 07:48:55,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-18 07:48:55,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-18 07:48:55,555 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:55,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,569 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2023-02-18 07:48:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-18 07:48:55,569 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-18 07:48:55,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,579 INFO L225 Difference]: With dead ends: 19 [2023-02-18 07:48:55,579 INFO L226 Difference]: Without dead ends: 18 [2023-02-18 07:48:55,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-18 07:48:55,580 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 2 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,580 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 25 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2023-02-18 07:48:55,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2023-02-18 07:48:55,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 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 07:48:55,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-18 07:48:55,582 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2023-02-18 07:48:55,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,583 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-18 07:48:55,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:55,583 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-18 07:48:55,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 07:48:55,583 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,583 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-18 07:48:55,583 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1472766433, now seen corresponding path program 1 times [2023-02-18 07:48:55,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973646436] [2023-02-18 07:48:55,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,631 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 07:48:55,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973646436] [2023-02-18 07:48:55,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973646436] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:55,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018414635] [2023-02-18 07:48:55,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:55,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:55,635 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 07:48:55,636 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 07:48:55,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 07:48:55,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:55,696 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 07:48:55,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:55,708 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 07:48:55,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018414635] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:55,708 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:55,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-02-18 07:48:55,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817053084] [2023-02-18 07:48:55,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:55,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-02-18 07:48:55,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:55,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-02-18 07:48:55,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-02-18 07:48:55,710 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 07:48:55,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:55,724 INFO L93 Difference]: Finished difference Result 43 states and 45 transitions. [2023-02-18 07:48:55,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-18 07:48:55,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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) Word has length 11 [2023-02-18 07:48:55,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:55,725 INFO L225 Difference]: With dead ends: 43 [2023-02-18 07:48:55,725 INFO L226 Difference]: Without dead ends: 42 [2023-02-18 07:48:55,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 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 07:48:55,726 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 16 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:55,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:55,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2023-02-18 07:48:55,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 31. [2023-02-18 07:48:55,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 30 states have internal predecessors, (36), 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 07:48:55,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2023-02-18 07:48:55,729 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 11 [2023-02-18 07:48:55,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:55,730 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2023-02-18 07:48:55,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 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 07:48:55,730 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-02-18 07:48:55,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-18 07:48:55,730 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:55,730 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:55,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-18 07:48:55,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:55,935 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:55,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:55,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1472764863, now seen corresponding path program 1 times [2023-02-18 07:48:55,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:55,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982631575] [2023-02-18 07:48:55,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:55,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:55,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:55,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982631575] [2023-02-18 07:48:55,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982631575] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:55,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1948200243] [2023-02-18 07:48:55,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:55,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:55,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:55,967 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 07:48:55,971 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 07:48:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:55,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2023-02-18 07:48:55,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:56,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:56,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1948200243] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:56,017 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:56,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-18 07:48:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937143267] [2023-02-18 07:48:56,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:56,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-18 07:48:56,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:56,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-18 07:48:56,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-02-18 07:48:56,018 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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 07:48:56,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:56,041 INFO L93 Difference]: Finished difference Result 38 states and 40 transitions. [2023-02-18 07:48:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-18 07:48:56,041 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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) Word has length 11 [2023-02-18 07:48:56,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:56,042 INFO L225 Difference]: With dead ends: 38 [2023-02-18 07:48:56,042 INFO L226 Difference]: Without dead ends: 32 [2023-02-18 07:48:56,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2023-02-18 07:48:56,043 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:56,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:56,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-02-18 07:48:56,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2023-02-18 07:48:56,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 28 states have (on average 1.1785714285714286) internal successors, (33), 30 states have internal predecessors, (33), 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 07:48:56,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2023-02-18 07:48:56,045 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 11 [2023-02-18 07:48:56,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:56,046 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2023-02-18 07:48:56,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.857142857142857) internal successors, (20), 8 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 07:48:56,046 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2023-02-18 07:48:56,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-02-18 07:48:56,046 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:56,046 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-18 07:48:56,052 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 07:48:56,250 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,SelfDestructingSolverStorable7 [2023-02-18 07:48:56,250 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:56,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:56,250 INFO L85 PathProgramCache]: Analyzing trace with hash -555665681, now seen corresponding path program 1 times [2023-02-18 07:48:56,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:56,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122015401] [2023-02-18 07:48:56,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:56,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:56,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:56,369 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:56,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122015401] [2023-02-18 07:48:56,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122015401] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:56,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337665260] [2023-02-18 07:48:56,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:56,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:56,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:56,371 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 07:48:56,417 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 07:48:56,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:56,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 07:48:56,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:56,466 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,466 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:56,504 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337665260] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:56,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:56,505 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-18 07:48:56,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622416918] [2023-02-18 07:48:56,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:56,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-18 07:48:56,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:56,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-18 07:48:56,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2023-02-18 07:48:56,506 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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 07:48:56,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:56,574 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2023-02-18 07:48:56,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-18 07:48:56,575 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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 18 [2023-02-18 07:48:56,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:56,575 INFO L225 Difference]: With dead ends: 55 [2023-02-18 07:48:56,575 INFO L226 Difference]: Without dead ends: 54 [2023-02-18 07:48:56,576 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=124, Invalid=256, Unknown=0, NotChecked=0, Total=380 [2023-02-18 07:48:56,576 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 33 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:56,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:56,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-02-18 07:48:56,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 43. [2023-02-18 07:48:56,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 40 states have (on average 1.2) internal successors, (48), 42 states have internal predecessors, (48), 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 07:48:56,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2023-02-18 07:48:56,580 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 18 [2023-02-18 07:48:56,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:56,580 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2023-02-18 07:48:56,580 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 14 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 07:48:56,580 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2023-02-18 07:48:56,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-18 07:48:56,580 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:56,580 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:56,601 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 07:48:56,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:56,785 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:56,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:56,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1032299713, now seen corresponding path program 2 times [2023-02-18 07:48:56,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:56,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788911035] [2023-02-18 07:48:56,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:56,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788911035] [2023-02-18 07:48:56,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788911035] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:56,893 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726212933] [2023-02-18 07:48:56,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:48:56,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:56,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:56,909 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 07:48:56,924 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 07:48:56,953 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:48:56,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:48:56,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 8 conjunts are in the unsatisfiable core [2023-02-18 07:48:56,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:56,990 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:56,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:57,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726212933] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:57,048 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:57,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-18 07:48:57,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017087159] [2023-02-18 07:48:57,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:57,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-18 07:48:57,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:57,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-18 07:48:57,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2023-02-18 07:48:57,053 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:57,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:57,124 INFO L93 Difference]: Finished difference Result 61 states and 64 transitions. [2023-02-18 07:48:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-18 07:48:57,127 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-18 07:48:57,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:57,129 INFO L225 Difference]: With dead ends: 61 [2023-02-18 07:48:57,129 INFO L226 Difference]: Without dead ends: 52 [2023-02-18 07:48:57,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=311, Unknown=0, NotChecked=0, Total=462 [2023-02-18 07:48:57,130 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:57,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 56 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:57,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-02-18 07:48:57,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 44. [2023-02-18 07:48:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 43 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:57,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2023-02-18 07:48:57,147 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 21 [2023-02-18 07:48:57,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:57,148 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2023-02-18 07:48:57,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.6666666666666665) internal successors, (40), 16 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:57,148 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2023-02-18 07:48:57,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-02-18 07:48:57,149 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:57,149 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1] [2023-02-18 07:48:57,161 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-02-18 07:48:57,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:57,353 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:57,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:57,353 INFO L85 PathProgramCache]: Analyzing trace with hash 924342317, now seen corresponding path program 2 times [2023-02-18 07:48:57,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:57,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495906662] [2023-02-18 07:48:57,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:57,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:57,396 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:57,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:57,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495906662] [2023-02-18 07:48:57,396 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495906662] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:57,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1964366846] [2023-02-18 07:48:57,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:48:57,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:57,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:57,415 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 07:48:57,433 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 07:48:57,477 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:48:57,477 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:48:57,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-18 07:48:57,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:57,507 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:57,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:57,547 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:57,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1964366846] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:57,547 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:57,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2023-02-18 07:48:57,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211694996] [2023-02-18 07:48:57,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:57,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-18 07:48:57,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:57,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-18 07:48:57,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 07:48:57,551 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:57,577 INFO L93 Difference]: Finished difference Result 74 states and 79 transitions. [2023-02-18 07:48:57,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-02-18 07:48:57,578 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-02-18 07:48:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:57,578 INFO L225 Difference]: With dead ends: 74 [2023-02-18 07:48:57,578 INFO L226 Difference]: Without dead ends: 73 [2023-02-18 07:48:57,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 42 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2023-02-18 07:48:57,579 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:57,579 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 70 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:57,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2023-02-18 07:48:57,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 61. [2023-02-18 07:48:57,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 58 states have (on average 1.1551724137931034) internal successors, (67), 60 states have internal predecessors, (67), 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 07:48:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2023-02-18 07:48:57,591 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 26 [2023-02-18 07:48:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:57,591 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2023-02-18 07:48:57,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2023-02-18 07:48:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-02-18 07:48:57,592 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:57,592 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-02-18 07:48:57,596 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 07:48:57,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-18 07:48:57,796 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:57,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1547319279, now seen corresponding path program 2 times [2023-02-18 07:48:57,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:57,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663295772] [2023-02-18 07:48:57,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:57,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:57,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:57,946 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:57,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663295772] [2023-02-18 07:48:57,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663295772] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:57,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943617352] [2023-02-18 07:48:57,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-18 07:48:57,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:57,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:57,948 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 07:48:57,957 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 07:48:57,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-18 07:48:57,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:48:57,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-18 07:48:57,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:58,022 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:58,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:58,179 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:58,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943617352] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:58,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:58,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2023-02-18 07:48:58,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841541971] [2023-02-18 07:48:58,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:58,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-02-18 07:48:58,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-02-18 07:48:58,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2023-02-18 07:48:58,181 INFO L87 Difference]: Start difference. First operand 61 states and 67 transitions. Second operand has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:58,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:58,351 INFO L93 Difference]: Finished difference Result 109 states and 116 transitions. [2023-02-18 07:48:58,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-18 07:48:58,351 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2023-02-18 07:48:58,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:58,352 INFO L225 Difference]: With dead ends: 109 [2023-02-18 07:48:58,352 INFO L226 Difference]: Without dead ends: 108 [2023-02-18 07:48:58,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 55 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=568, Invalid=1324, Unknown=0, NotChecked=0, Total=1892 [2023-02-18 07:48:58,353 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 114 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:58,353 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 86 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:48:58,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2023-02-18 07:48:58,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 83. [2023-02-18 07:48:58,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 80 states have (on average 1.175) internal successors, (94), 82 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 07:48:58,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 94 transitions. [2023-02-18 07:48:58,356 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 94 transitions. Word has length 38 [2023-02-18 07:48:58,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:58,356 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 94 transitions. [2023-02-18 07:48:58,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 2.5517241379310347) internal successors, (74), 30 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-18 07:48:58,356 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 94 transitions. [2023-02-18 07:48:58,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-02-18 07:48:58,357 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:58,357 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1] [2023-02-18 07:48:58,361 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 07:48:58,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:58,561 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:58,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:58,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1695303105, now seen corresponding path program 3 times [2023-02-18 07:48:58,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:58,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736223078] [2023-02-18 07:48:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:58,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:58,717 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:58,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:58,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736223078] [2023-02-18 07:48:58,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736223078] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:58,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345980432] [2023-02-18 07:48:58,718 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:48:58,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:58,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:58,719 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 07:48:58,721 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 07:48:58,752 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-18 07:48:58,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:48:58,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-18 07:48:58,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:58,819 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:58,819 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:58,999 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 112 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:58,999 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345980432] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:58,999 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:58,999 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-18 07:48:59,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296945353] [2023-02-18 07:48:59,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:59,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-18 07:48:59,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:59,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-18 07:48:59,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2023-02-18 07:48:59,001 INFO L87 Difference]: Start difference. First operand 83 states and 94 transitions. Second operand has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 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 07:48:59,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:59,169 INFO L93 Difference]: Finished difference Result 111 states and 118 transitions. [2023-02-18 07:48:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-02-18 07:48:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2023-02-18 07:48:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:59,170 INFO L225 Difference]: With dead ends: 111 [2023-02-18 07:48:59,170 INFO L226 Difference]: Without dead ends: 94 [2023-02-18 07:48:59,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 421 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=623, Invalid=1447, Unknown=0, NotChecked=0, Total=2070 [2023-02-18 07:48:59,171 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 114 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:59,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 107 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:48:59,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2023-02-18 07:48:59,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 84. [2023-02-18 07:48:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 81 states have (on average 1.0864197530864197) internal successors, (88), 83 states have internal predecessors, (88), 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 07:48:59,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2023-02-18 07:48:59,174 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 41 [2023-02-18 07:48:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:59,174 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2023-02-18 07:48:59,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 32 states have internal predecessors, (80), 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 07:48:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2023-02-18 07:48:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-02-18 07:48:59,175 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:59,175 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1] [2023-02-18 07:48:59,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-18 07:48:59,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:59,375 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:59,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:59,376 INFO L85 PathProgramCache]: Analyzing trace with hash -1183028819, now seen corresponding path program 3 times [2023-02-18 07:48:59,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:59,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983557439] [2023-02-18 07:48:59,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:59,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:48:59,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:48:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:59,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:48:59,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983557439] [2023-02-18 07:48:59,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983557439] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:48:59,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630046572] [2023-02-18 07:48:59,502 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:48:59,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:48:59,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:48:59,503 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 07:48:59,519 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 07:48:59,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-18 07:48:59,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:48:59,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-18 07:48:59,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:48:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:59,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:48:59,737 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:48:59,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630046572] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:48:59,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:48:59,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2023-02-18 07:48:59,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131651088] [2023-02-18 07:48:59,737 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:48:59,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-18 07:48:59,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:48:59,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-18 07:48:59,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 07:48:59,738 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 07:48:59,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:48:59,779 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2023-02-18 07:48:59,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-02-18 07:48:59,779 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 56 [2023-02-18 07:48:59,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:48:59,780 INFO L225 Difference]: With dead ends: 150 [2023-02-18 07:48:59,780 INFO L226 Difference]: Without dead ends: 149 [2023-02-18 07:48:59,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 90 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2023-02-18 07:48:59,781 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 66 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-18 07:48:59,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-18 07:48:59,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-02-18 07:48:59,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 121. [2023-02-18 07:48:59,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 118 states have (on average 1.1440677966101696) internal successors, (135), 120 states have internal predecessors, (135), 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 07:48:59,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 135 transitions. [2023-02-18 07:48:59,784 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 135 transitions. Word has length 56 [2023-02-18 07:48:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:48:59,784 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 135 transitions. [2023-02-18 07:48:59,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 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 07:48:59,784 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 135 transitions. [2023-02-18 07:48:59,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-18 07:48:59,785 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:48:59,785 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 14, 1, 1, 1, 1] [2023-02-18 07:48:59,801 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 07:48:59,990 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,SelfDestructingSolverStorable13 [2023-02-18 07:48:59,990 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:48:59,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:48:59,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1552726511, now seen corresponding path program 3 times [2023-02-18 07:48:59,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:48:59,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387487848] [2023-02-18 07:48:59,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:48:59,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:00,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387487848] [2023-02-18 07:49:00,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387487848] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:00,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542536706] [2023-02-18 07:49:00,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-18 07:49:00,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:00,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:00,469 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 07:49:00,506 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 07:49:00,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-18 07:49:00,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:00,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-18 07:49:00,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:00,685 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:00,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:01,308 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 525 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:01,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542536706] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:01,309 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:01,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 61 [2023-02-18 07:49:01,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138574215] [2023-02-18 07:49:01,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:01,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2023-02-18 07:49:01,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:01,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2023-02-18 07:49:01,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=991, Invalid=2791, Unknown=0, NotChecked=0, Total=3782 [2023-02-18 07:49:01,311 INFO L87 Difference]: Start difference. First operand 121 states and 135 transitions. Second operand has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 07:49:01,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:01,860 INFO L93 Difference]: Finished difference Result 217 states and 232 transitions. [2023-02-18 07:49:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2023-02-18 07:49:01,860 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 78 [2023-02-18 07:49:01,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:01,861 INFO L225 Difference]: With dead ends: 217 [2023-02-18 07:49:01,861 INFO L226 Difference]: Without dead ends: 216 [2023-02-18 07:49:01,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 111 SyntacticMatches, 14 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1941 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2416, Invalid=5956, Unknown=0, NotChecked=0, Total=8372 [2023-02-18 07:49:01,863 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 298 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 298 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:01,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [298 Valid, 120 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:49:01,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2023-02-18 07:49:01,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 163. [2023-02-18 07:49:01,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 160 states have (on average 1.1625) internal successors, (186), 162 states have internal predecessors, (186), 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 07:49:01,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2023-02-18 07:49:01,867 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 78 [2023-02-18 07:49:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:01,867 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2023-02-18 07:49:01,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 2.5245901639344264) internal successors, (154), 62 states have internal predecessors, (154), 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 07:49:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2023-02-18 07:49:01,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-02-18 07:49:01,868 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:01,868 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1] [2023-02-18 07:49:01,875 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 07:49:02,072 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,SelfDestructingSolverStorable14 [2023-02-18 07:49:02,073 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:02,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:02,073 INFO L85 PathProgramCache]: Analyzing trace with hash 477755455, now seen corresponding path program 4 times [2023-02-18 07:49:02,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:02,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208883087] [2023-02-18 07:49:02,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:02,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:02,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:02,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208883087] [2023-02-18 07:49:02,463 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208883087] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:02,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29087663] [2023-02-18 07:49:02,463 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:49:02,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:02,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:02,477 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 07:49:02,528 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 07:49:02,543 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:49:02,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:02,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-18 07:49:02,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:02,709 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:02,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 540 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:03,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29087663] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:03,326 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:03,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 63 [2023-02-18 07:49:03,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558717049] [2023-02-18 07:49:03,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:03,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2023-02-18 07:49:03,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2023-02-18 07:49:03,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=2976, Unknown=0, NotChecked=0, Total=4032 [2023-02-18 07:49:03,328 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 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 07:49:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:03,824 INFO L93 Difference]: Finished difference Result 211 states and 226 transitions. [2023-02-18 07:49:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2023-02-18 07:49:03,825 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 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 81 [2023-02-18 07:49:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:03,825 INFO L225 Difference]: With dead ends: 211 [2023-02-18 07:49:03,826 INFO L226 Difference]: Without dead ends: 178 [2023-02-18 07:49:03,827 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 115 SyntacticMatches, 15 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2041 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2527, Invalid=6215, Unknown=0, NotChecked=0, Total=8742 [2023-02-18 07:49:03,828 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 274 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:03,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 151 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:49:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-02-18 07:49:03,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 164. [2023-02-18 07:49:03,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 161 states have (on average 1.0683229813664596) internal successors, (172), 163 states have internal predecessors, (172), 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 07:49:03,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 172 transitions. [2023-02-18 07:49:03,831 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 172 transitions. Word has length 81 [2023-02-18 07:49:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:03,831 INFO L495 AbstractCegarLoop]: Abstraction has 164 states and 172 transitions. [2023-02-18 07:49:03,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 2.5396825396825395) internal successors, (160), 64 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 07:49:03,832 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 172 transitions. [2023-02-18 07:49:03,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-02-18 07:49:03,835 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:03,835 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1] [2023-02-18 07:49:03,840 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 07:49:04,039 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,SelfDestructingSolverStorable15 [2023-02-18 07:49:04,040 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:04,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash 493726893, now seen corresponding path program 4 times [2023-02-18 07:49:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:04,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438263409] [2023-02-18 07:49:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:04,473 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:04,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:04,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438263409] [2023-02-18 07:49:04,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438263409] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:04,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806421042] [2023-02-18 07:49:04,474 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:49:04,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:04,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:04,491 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:04,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-18 07:49:04,562 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:49:04,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:04,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-18 07:49:04,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:04,798 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:04,798 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:05,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:05,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806421042] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:05,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:05,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2023-02-18 07:49:05,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313917723] [2023-02-18 07:49:05,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:05,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2023-02-18 07:49:05,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:05,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2023-02-18 07:49:05,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 07:49:05,402 INFO L87 Difference]: Start difference. First operand 164 states and 172 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 07:49:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:05,512 INFO L93 Difference]: Finished difference Result 302 states and 325 transitions. [2023-02-18 07:49:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-02-18 07:49:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 116 [2023-02-18 07:49:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:05,514 INFO L225 Difference]: With dead ends: 302 [2023-02-18 07:49:05,514 INFO L226 Difference]: Without dead ends: 301 [2023-02-18 07:49:05,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 186 SyntacticMatches, 22 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2023-02-18 07:49:05,516 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 154 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:05,516 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 235 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:49:05,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2023-02-18 07:49:05,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 241. [2023-02-18 07:49:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 238 states have (on average 1.138655462184874) internal successors, (271), 240 states have internal predecessors, (271), 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 07:49:05,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 271 transitions. [2023-02-18 07:49:05,520 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 271 transitions. Word has length 116 [2023-02-18 07:49:05,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:05,520 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 271 transitions. [2023-02-18 07:49:05,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 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 07:49:05,521 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 271 transitions. [2023-02-18 07:49:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-02-18 07:49:05,522 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:05,522 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 30, 1, 1, 1, 1] [2023-02-18 07:49:05,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-18 07:49:05,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-18 07:49:05,726 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:05,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:05,727 INFO L85 PathProgramCache]: Analyzing trace with hash -1565278737, now seen corresponding path program 4 times [2023-02-18 07:49:05,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:05,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522618744] [2023-02-18 07:49:05,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:05,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:07,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:07,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:07,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522618744] [2023-02-18 07:49:07,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522618744] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:07,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791451264] [2023-02-18 07:49:07,151 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-18 07:49:07,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:07,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:07,166 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:07,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-18 07:49:07,247 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-18 07:49:07,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:07,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 63 conjunts are in the unsatisfiable core [2023-02-18 07:49:07,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:07,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:07,709 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:10,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2325 backedges. 0 proven. 2325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:10,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791451264] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:10,016 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:10,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63, 63] total 125 [2023-02-18 07:49:10,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028533309] [2023-02-18 07:49:10,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:10,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2023-02-18 07:49:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:10,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2023-02-18 07:49:10,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4031, Invalid=11719, Unknown=0, NotChecked=0, Total=15750 [2023-02-18 07:49:10,022 INFO L87 Difference]: Start difference. First operand 241 states and 271 transitions. Second operand has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 07:49:11,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:11,969 INFO L93 Difference]: Finished difference Result 433 states and 464 transitions. [2023-02-18 07:49:11,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2023-02-18 07:49:11,970 INFO L78 Accepts]: Start accepts. Automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 158 [2023-02-18 07:49:11,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:11,971 INFO L225 Difference]: With dead ends: 433 [2023-02-18 07:49:11,971 INFO L226 Difference]: Without dead ends: 432 [2023-02-18 07:49:11,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 223 SyntacticMatches, 30 SemanticMatches, 186 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8717 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=9952, Invalid=25204, Unknown=0, NotChecked=0, Total=35156 [2023-02-18 07:49:11,976 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 891 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 891 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:11,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [891 Valid, 226 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:49:11,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2023-02-18 07:49:11,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 323. [2023-02-18 07:49:11,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 320 states have (on average 1.15625) internal successors, (370), 322 states have internal predecessors, (370), 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 07:49:11,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 370 transitions. [2023-02-18 07:49:11,983 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 370 transitions. Word has length 158 [2023-02-18 07:49:11,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:11,983 INFO L495 AbstractCegarLoop]: Abstraction has 323 states and 370 transitions. [2023-02-18 07:49:11,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 125 states have (on average 2.512) internal successors, (314), 126 states have internal predecessors, (314), 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 07:49:11,983 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 370 transitions. [2023-02-18 07:49:11,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-02-18 07:49:11,984 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:11,984 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 31, 1, 1, 1, 1, 1, 1] [2023-02-18 07:49:11,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-02-18 07:49:12,189 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-18 07:49:12,189 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:12,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:12,190 INFO L85 PathProgramCache]: Analyzing trace with hash -758877121, now seen corresponding path program 5 times [2023-02-18 07:49:12,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:12,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771561349] [2023-02-18 07:49:12,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:12,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:12,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:13,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:13,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:13,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771561349] [2023-02-18 07:49:13,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771561349] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:13,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026957977] [2023-02-18 07:49:13,515 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 07:49:13,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:13,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:13,516 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:13,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-18 07:49:13,666 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2023-02-18 07:49:13,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:13,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 64 conjunts are in the unsatisfiable core [2023-02-18 07:49:13,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:14,150 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:14,151 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:16,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 0 proven. 2356 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:16,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026957977] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:16,576 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:16,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64, 64] total 127 [2023-02-18 07:49:16,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401232745] [2023-02-18 07:49:16,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:16,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2023-02-18 07:49:16,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:16,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2023-02-18 07:49:16,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4160, Invalid=12096, Unknown=0, NotChecked=0, Total=16256 [2023-02-18 07:49:16,579 INFO L87 Difference]: Start difference. First operand 323 states and 370 transitions. Second operand has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 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 07:49:18,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:18,488 INFO L93 Difference]: Finished difference Result 411 states and 442 transitions. [2023-02-18 07:49:18,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2023-02-18 07:49:18,489 INFO L78 Accepts]: Start accepts. Automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 161 [2023-02-18 07:49:18,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:18,490 INFO L225 Difference]: With dead ends: 411 [2023-02-18 07:49:18,490 INFO L226 Difference]: Without dead ends: 346 [2023-02-18 07:49:18,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 227 SyntacticMatches, 31 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8929 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=10175, Invalid=25735, Unknown=0, NotChecked=0, Total=35910 [2023-02-18 07:49:18,493 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 707 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:18,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 240 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:49:18,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-02-18 07:49:18,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 324. [2023-02-18 07:49:18,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 321 states have (on average 1.0591900311526479) internal successors, (340), 323 states have internal predecessors, (340), 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 07:49:18,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 340 transitions. [2023-02-18 07:49:18,498 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 340 transitions. Word has length 161 [2023-02-18 07:49:18,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:18,499 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 340 transitions. [2023-02-18 07:49:18,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 127 states have (on average 2.5196850393700787) internal successors, (320), 128 states have internal predecessors, (320), 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 07:49:18,499 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 340 transitions. [2023-02-18 07:49:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2023-02-18 07:49:18,500 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:18,500 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 1, 1, 1, 1] [2023-02-18 07:49:18,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-18 07:49:18,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:18,706 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:18,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:18,706 INFO L85 PathProgramCache]: Analyzing trace with hash 982823597, now seen corresponding path program 5 times [2023-02-18 07:49:18,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:18,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756623698] [2023-02-18 07:49:18,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:18,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:19,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:19,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756623698] [2023-02-18 07:49:19,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756623698] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:19,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132729637] [2023-02-18 07:49:19,821 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 07:49:19,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:19,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:19,822 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:19,824 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-18 07:49:20,119 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-02-18 07:49:20,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:20,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 49 conjunts are in the unsatisfiable core [2023-02-18 07:49:20,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:20,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:22,826 INFO L134 CoverageAnalysis]: Checked inductivity of 5313 backedges. 0 proven. 5313 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:22,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132729637] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:22,826 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:22,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2023-02-18 07:49:22,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950495355] [2023-02-18 07:49:22,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:22,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2023-02-18 07:49:22,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:22,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2023-02-18 07:49:22,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 07:49:22,828 INFO L87 Difference]: Start difference. First operand 324 states and 340 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 07:49:23,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:23,049 INFO L93 Difference]: Finished difference Result 606 states and 653 transitions. [2023-02-18 07:49:23,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2023-02-18 07:49:23,050 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 236 [2023-02-18 07:49:23,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:23,052 INFO L225 Difference]: With dead ends: 606 [2023-02-18 07:49:23,052 INFO L226 Difference]: Without dead ends: 605 [2023-02-18 07:49:23,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 378 SyntacticMatches, 46 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2023-02-18 07:49:23,053 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 286 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:23,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 450 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-18 07:49:23,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 605 states. [2023-02-18 07:49:23,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 605 to 481. [2023-02-18 07:49:23,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 478 states have (on average 1.1359832635983265) internal successors, (543), 480 states have internal predecessors, (543), 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 07:49:23,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 543 transitions. [2023-02-18 07:49:23,060 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 543 transitions. Word has length 236 [2023-02-18 07:49:23,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:23,060 INFO L495 AbstractCegarLoop]: Abstraction has 481 states and 543 transitions. [2023-02-18 07:49:23,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 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 07:49:23,061 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 543 transitions. [2023-02-18 07:49:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2023-02-18 07:49:23,062 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:23,063 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 62, 1, 1, 1, 1] [2023-02-18 07:49:23,080 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-18 07:49:23,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:23,280 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:23,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1123432977, now seen corresponding path program 5 times [2023-02-18 07:49:23,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:23,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317643823] [2023-02-18 07:49:23,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:23,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:28,675 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:28,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317643823] [2023-02-18 07:49:28,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317643823] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:28,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328334262] [2023-02-18 07:49:28,676 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-18 07:49:28,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:28,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:28,677 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:28,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-18 07:49:29,343 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 63 check-sat command(s) [2023-02-18 07:49:29,343 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:29,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 127 conjunts are in the unsatisfiable core [2023-02-18 07:49:29,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:30,913 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:30,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 9765 backedges. 0 proven. 9765 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:37,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328334262] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:37,912 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:37,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [127, 127, 127] total 253 [2023-02-18 07:49:37,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605052741] [2023-02-18 07:49:37,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:37,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 254 states [2023-02-18 07:49:37,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:37,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 254 interpolants. [2023-02-18 07:49:37,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16255, Invalid=48007, Unknown=0, NotChecked=0, Total=64262 [2023-02-18 07:49:37,919 INFO L87 Difference]: Start difference. First operand 481 states and 543 transitions. Second operand has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 07:49:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:49:45,285 INFO L93 Difference]: Finished difference Result 865 states and 928 transitions. [2023-02-18 07:49:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2023-02-18 07:49:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 318 [2023-02-18 07:49:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:49:45,288 INFO L225 Difference]: With dead ends: 865 [2023-02-18 07:49:45,288 INFO L226 Difference]: Without dead ends: 864 [2023-02-18 07:49:45,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 447 SyntacticMatches, 62 SemanticMatches, 378 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36861 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=40384, Invalid=103636, Unknown=0, NotChecked=0, Total=144020 [2023-02-18 07:49:45,293 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 1916 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 800 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:49:45,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1916 Valid, 411 Invalid, 800 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 07:49:45,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 864 states. [2023-02-18 07:49:45,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 864 to 643. [2023-02-18 07:49:45,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 640 states have (on average 1.153125) internal successors, (738), 642 states have internal predecessors, (738), 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 07:49:45,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 738 transitions. [2023-02-18 07:49:45,302 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 738 transitions. Word has length 318 [2023-02-18 07:49:45,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:49:45,302 INFO L495 AbstractCegarLoop]: Abstraction has 643 states and 738 transitions. [2023-02-18 07:49:45,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 254 states, 253 states have (on average 2.505928853754941) internal successors, (634), 254 states have internal predecessors, (634), 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 07:49:45,303 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 738 transitions. [2023-02-18 07:49:45,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2023-02-18 07:49:45,305 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:49:45,305 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 63, 1, 1, 1, 1, 1, 1] [2023-02-18 07:49:45,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-18 07:49:45,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:45,511 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:49:45,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:49:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1806603201, now seen corresponding path program 6 times [2023-02-18 07:49:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:49:45,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066751856] [2023-02-18 07:49:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:49:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:49:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:49:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:51,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:49:51,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066751856] [2023-02-18 07:49:51,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066751856] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:49:51,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1937170249] [2023-02-18 07:49:51,157 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 07:49:51,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:49:51,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:49:51,158 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:49:51,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-18 07:49:51,525 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 64 check-sat command(s) [2023-02-18 07:49:51,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:49:51,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 128 conjunts are in the unsatisfiable core [2023-02-18 07:49:51,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:49:53,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:53,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:49:59,762 INFO L134 CoverageAnalysis]: Checked inductivity of 9828 backedges. 0 proven. 9828 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:49:59,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1937170249] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:49:59,763 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:49:59,763 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 128, 128] total 255 [2023-02-18 07:49:59,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863390713] [2023-02-18 07:49:59,763 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:49:59,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 256 states [2023-02-18 07:49:59,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:49:59,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 256 interpolants. [2023-02-18 07:49:59,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16512, Invalid=48768, Unknown=0, NotChecked=0, Total=65280 [2023-02-18 07:49:59,785 INFO L87 Difference]: Start difference. First operand 643 states and 738 transitions. Second operand has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 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 07:50:06,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:50:06,681 INFO L93 Difference]: Finished difference Result 811 states and 874 transitions. [2023-02-18 07:50:06,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2023-02-18 07:50:06,682 INFO L78 Accepts]: Start accepts. Automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 321 [2023-02-18 07:50:06,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:50:06,706 INFO L225 Difference]: With dead ends: 811 [2023-02-18 07:50:06,707 INFO L226 Difference]: Without dead ends: 682 [2023-02-18 07:50:06,714 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 894 GetRequests, 451 SyntacticMatches, 63 SemanticMatches, 380 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37297 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=40831, Invalid=104711, Unknown=0, NotChecked=0, Total=145542 [2023-02-18 07:50:06,716 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 2143 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2143 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-18 07:50:06,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2143 Valid, 424 Invalid, 740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-18 07:50:06,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 682 states. [2023-02-18 07:50:06,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 682 to 644. [2023-02-18 07:50:06,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 641 states have (on average 1.0546021840873634) internal successors, (676), 643 states have internal predecessors, (676), 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 07:50:06,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 676 transitions. [2023-02-18 07:50:06,730 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 676 transitions. Word has length 321 [2023-02-18 07:50:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:50:06,731 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 676 transitions. [2023-02-18 07:50:06,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 256 states, 255 states have (on average 2.5098039215686274) internal successors, (640), 256 states have internal predecessors, (640), 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 07:50:06,731 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 676 transitions. [2023-02-18 07:50:06,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2023-02-18 07:50:06,733 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:50:06,733 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 1, 1, 1, 1] [2023-02-18 07:50:06,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-18 07:50:06,939 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-18 07:50:06,939 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:50:06,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:50:06,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1056226989, now seen corresponding path program 6 times [2023-02-18 07:50:06,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:50:06,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689330427] [2023-02-18 07:50:06,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:50:06,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:50:07,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:50:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:50:10,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:50:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689330427] [2023-02-18 07:50:10,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689330427] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:50:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390115191] [2023-02-18 07:50:10,843 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 07:50:10,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:50:10,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:50:10,845 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:50:10,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-18 07:50:11,773 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2023-02-18 07:50:11,774 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:50:11,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 1066 conjuncts, 97 conjunts are in the unsatisfiable core [2023-02-18 07:50:11,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:50:13,480 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:50:13,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:50:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 22137 backedges. 0 proven. 22137 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:50:19,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390115191] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:50:19,130 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:50:19,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2023-02-18 07:50:19,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657413922] [2023-02-18 07:50:19,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:50:19,133 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-02-18 07:50:19,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:50:19,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-02-18 07:50:19,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 07:50:19,138 INFO L87 Difference]: Start difference. First operand 644 states and 676 transitions. Second operand has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 07:50:19,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:50:19,996 INFO L93 Difference]: Finished difference Result 1214 states and 1309 transitions. [2023-02-18 07:50:19,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2023-02-18 07:50:19,997 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 476 [2023-02-18 07:50:19,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:50:20,000 INFO L225 Difference]: With dead ends: 1214 [2023-02-18 07:50:20,000 INFO L226 Difference]: Without dead ends: 1213 [2023-02-18 07:50:20,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1046 GetRequests, 762 SyntacticMatches, 94 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4371 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2023-02-18 07:50:20,001 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 866 mSDsluCounter, 853 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-18 07:50:20,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 864 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-18 07:50:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1213 states. [2023-02-18 07:50:20,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1213 to 961. [2023-02-18 07:50:20,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 961 states, 958 states have (on average 1.1346555323590815) internal successors, (1087), 960 states have internal predecessors, (1087), 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 07:50:20,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 961 states to 961 states and 1087 transitions. [2023-02-18 07:50:20,013 INFO L78 Accepts]: Start accepts. Automaton has 961 states and 1087 transitions. Word has length 476 [2023-02-18 07:50:20,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:50:20,014 INFO L495 AbstractCegarLoop]: Abstraction has 961 states and 1087 transitions. [2023-02-18 07:50:20,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 4.973821989528796) internal successors, (950), 192 states have internal predecessors, (950), 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 07:50:20,015 INFO L276 IsEmpty]: Start isEmpty. Operand 961 states and 1087 transitions. [2023-02-18 07:50:20,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2023-02-18 07:50:20,017 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:50:20,017 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 126, 1, 1, 1, 1] [2023-02-18 07:50:20,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-18 07:50:20,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:50:20,223 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:50:20,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:50:20,223 INFO L85 PathProgramCache]: Analyzing trace with hash -371862033, now seen corresponding path program 6 times [2023-02-18 07:50:20,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:50:20,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745217632] [2023-02-18 07:50:20,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:50:20,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:50:20,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:50:44,892 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:50:44,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:50:44,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745217632] [2023-02-18 07:50:44,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745217632] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:50:44,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [196775437] [2023-02-18 07:50:44,892 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-18 07:50:44,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:50:44,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:50:44,897 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:50:44,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-18 07:50:47,880 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 127 check-sat command(s) [2023-02-18 07:50:47,880 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-18 07:50:47,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1424 conjuncts, 255 conjunts are in the unsatisfiable core [2023-02-18 07:50:47,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:50:54,881 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:50:54,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:51:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 40005 backedges. 0 proven. 40005 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:51:20,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [196775437] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:51:20,342 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:51:20,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [255, 255, 255] total 509 [2023-02-18 07:51:20,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252543220] [2023-02-18 07:51:20,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:51:20,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 510 states [2023-02-18 07:51:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:51:20,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 510 interpolants. [2023-02-18 07:51:20,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65279, Invalid=194311, Unknown=0, NotChecked=0, Total=259590 [2023-02-18 07:51:20,404 INFO L87 Difference]: Start difference. First operand 961 states and 1087 transitions. Second operand has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 07:52:06,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:52:06,603 INFO L93 Difference]: Finished difference Result 1729 states and 1856 transitions. [2023-02-18 07:52:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 510 states. [2023-02-18 07:52:06,604 INFO L78 Accepts]: Start accepts. Automaton has has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 638 [2023-02-18 07:52:06,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:52:06,616 INFO L225 Difference]: With dead ends: 1729 [2023-02-18 07:52:06,616 INFO L226 Difference]: Without dead ends: 1728 [2023-02-18 07:52:06,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1783 GetRequests, 895 SyntacticMatches, 126 SemanticMatches, 762 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151517 ImplicationChecksByTransitivity, 67.2s TimeCoverageRelationStatistics Valid=162688, Invalid=420244, Unknown=0, NotChecked=0, Total=582932 [2023-02-18 07:52:06,641 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 4757 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 1575 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4757 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 07:52:06,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4757 Valid, 766 Invalid, 1576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1575 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 07:52:06,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2023-02-18 07:52:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1283. [2023-02-18 07:52:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 1280 states have (on average 1.1515625) internal successors, (1474), 1282 states have internal predecessors, (1474), 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 07:52:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1474 transitions. [2023-02-18 07:52:06,698 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1474 transitions. Word has length 638 [2023-02-18 07:52:06,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:52:06,699 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1474 transitions. [2023-02-18 07:52:06,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 510 states, 509 states have (on average 2.5029469548133596) internal successors, (1274), 510 states have internal predecessors, (1274), 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 07:52:06,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1474 transitions. [2023-02-18 07:52:06,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2023-02-18 07:52:06,702 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:52:06,703 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 127, 1, 1, 1, 1, 1, 1] [2023-02-18 07:52:06,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-18 07:52:06,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:52:06,903 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:52:06,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:52:06,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1421124545, now seen corresponding path program 7 times [2023-02-18 07:52:06,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:52:06,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104122156] [2023-02-18 07:52:06,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:52:06,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:52:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:52:28,512 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:52:28,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:52:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104122156] [2023-02-18 07:52:28,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104122156] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:52:28,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477356696] [2023-02-18 07:52:28,513 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 07:52:28,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:52:28,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:52:28,514 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:52:28,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-18 07:52:28,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:52:28,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 1430 conjuncts, 256 conjunts are in the unsatisfiable core [2023-02-18 07:52:28,696 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:52:36,021 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:52:36,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:53:06,385 INFO L134 CoverageAnalysis]: Checked inductivity of 40132 backedges. 0 proven. 40132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:53:06,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477356696] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:53:06,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:53:06,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [256, 256, 256] total 511 [2023-02-18 07:53:06,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572127047] [2023-02-18 07:53:06,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:53:06,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 512 states [2023-02-18 07:53:06,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:53:06,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 512 interpolants. [2023-02-18 07:53:06,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65792, Invalid=195840, Unknown=0, NotChecked=0, Total=261632 [2023-02-18 07:53:06,416 INFO L87 Difference]: Start difference. First operand 1283 states and 1474 transitions. Second operand has 512 states, 511 states have (on average 2.5048923679060664) internal successors, (1280), 512 states have internal predecessors, (1280), 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 07:53:53,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:53:53,852 INFO L93 Difference]: Finished difference Result 1611 states and 1738 transitions. [2023-02-18 07:53:53,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2023-02-18 07:53:53,853 INFO L78 Accepts]: Start accepts. Automaton has has 512 states, 511 states have (on average 2.5048923679060664) internal successors, (1280), 512 states have internal predecessors, (1280), 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 641 [2023-02-18 07:53:53,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:53:53,856 INFO L225 Difference]: With dead ends: 1611 [2023-02-18 07:53:53,856 INFO L226 Difference]: Without dead ends: 1354 [2023-02-18 07:53:53,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1790 GetRequests, 899 SyntacticMatches, 127 SemanticMatches, 764 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152401 ImplicationChecksByTransitivity, 69.2s TimeCoverageRelationStatistics Valid=163583, Invalid=422407, Unknown=0, NotChecked=0, Total=585990 [2023-02-18 07:53:53,876 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 3851 mSDsluCounter, 770 mSDsCounter, 0 mSdLazyCounter, 1444 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3851 SdHoareTripleChecker+Valid, 779 SdHoareTripleChecker+Invalid, 1444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-18 07:53:53,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3851 Valid, 779 Invalid, 1444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1444 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-18 07:53:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1354 states. [2023-02-18 07:53:53,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1354 to 1284. [2023-02-18 07:53:53,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1284 states, 1281 states have (on average 1.0523028883684622) internal successors, (1348), 1283 states have internal predecessors, (1348), 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 07:53:53,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1284 states to 1284 states and 1348 transitions. [2023-02-18 07:53:53,900 INFO L78 Accepts]: Start accepts. Automaton has 1284 states and 1348 transitions. Word has length 641 [2023-02-18 07:53:53,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:53:53,901 INFO L495 AbstractCegarLoop]: Abstraction has 1284 states and 1348 transitions. [2023-02-18 07:53:53,901 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 512 states, 511 states have (on average 2.5048923679060664) internal successors, (1280), 512 states have internal predecessors, (1280), 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 07:53:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1284 states and 1348 transitions. [2023-02-18 07:53:53,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 957 [2023-02-18 07:53:53,907 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:53:53,907 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 190, 190, 190, 1, 1, 1, 1] [2023-02-18 07:53:53,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2023-02-18 07:53:54,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:53:54,112 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:53:54,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:53:54,113 INFO L85 PathProgramCache]: Analyzing trace with hash 402445997, now seen corresponding path program 7 times [2023-02-18 07:53:54,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:53:54,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200313550] [2023-02-18 07:53:54,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:53:54,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:53:54,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:54:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:54:15,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:54:15,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200313550] [2023-02-18 07:54:15,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200313550] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:54:15,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935058195] [2023-02-18 07:54:15,636 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 07:54:15,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:54:15,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:54:15,637 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:54:15,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-18 07:54:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:54:15,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 2122 conjuncts, 193 conjunts are in the unsatisfiable core [2023-02-18 07:54:15,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:54:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:54:24,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:54:52,464 INFO L134 CoverageAnalysis]: Checked inductivity of 90345 backedges. 0 proven. 90345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:54:52,464 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935058195] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:54:52,464 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:54:52,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2023-02-18 07:54:52,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059721540] [2023-02-18 07:54:52,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:54:52,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2023-02-18 07:54:52,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:54:52,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2023-02-18 07:54:52,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 07:54:52,482 INFO L87 Difference]: Start difference. First operand 1284 states and 1348 transitions. Second operand has 384 states, 383 states have (on average 4.986945169712794) internal successors, (1910), 384 states have internal predecessors, (1910), 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 07:55:02,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-18 07:55:02,103 INFO L93 Difference]: Finished difference Result 2430 states and 2621 transitions. [2023-02-18 07:55:02,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2023-02-18 07:55:02,103 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 4.986945169712794) internal successors, (1910), 384 states have internal predecessors, (1910), 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 956 [2023-02-18 07:55:02,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-18 07:55:02,109 INFO L225 Difference]: With dead ends: 2430 [2023-02-18 07:55:02,109 INFO L226 Difference]: Without dead ends: 2429 [2023-02-18 07:55:02,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2102 GetRequests, 1530 SyntacticMatches, 190 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17955 ImplicationChecksByTransitivity, 46.2s TimeCoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2023-02-18 07:55:02,113 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2362 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2362 SdHoareTripleChecker+Valid, 1702 SdHoareTripleChecker+Invalid, 785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-18 07:55:02,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2362 Valid, 1702 Invalid, 785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-18 07:55:02,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2023-02-18 07:55:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 1921. [2023-02-18 07:55:02,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1921 states, 1918 states have (on average 1.1339937434827945) internal successors, (2175), 1920 states have internal predecessors, (2175), 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 07:55:02,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2175 transitions. [2023-02-18 07:55:02,137 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2175 transitions. Word has length 956 [2023-02-18 07:55:02,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-18 07:55:02,137 INFO L495 AbstractCegarLoop]: Abstraction has 1921 states and 2175 transitions. [2023-02-18 07:55:02,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 4.986945169712794) internal successors, (1910), 384 states have internal predecessors, (1910), 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 07:55:02,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2175 transitions. [2023-02-18 07:55:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1279 [2023-02-18 07:55:02,147 INFO L187 NwaCegarLoop]: Found error trace [2023-02-18 07:55:02,147 INFO L195 NwaCegarLoop]: trace histogram [255, 255, 255, 255, 254, 1, 1, 1, 1] [2023-02-18 07:55:02,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-18 07:55:02,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-02-18 07:55:02,354 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-02-18 07:55:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-18 07:55:02,355 INFO L85 PathProgramCache]: Analyzing trace with hash 602797551, now seen corresponding path program 7 times [2023-02-18 07:55:02,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-18 07:55:02,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288360190] [2023-02-18 07:55:02,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-18 07:55:02,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-18 07:55:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:57:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 161925 backedges. 0 proven. 161925 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:57:09,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-18 07:57:09,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288360190] [2023-02-18 07:57:09,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288360190] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-18 07:57:09,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151916989] [2023-02-18 07:57:09,713 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-18 07:57:09,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-18 07:57:09,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-18 07:57:09,716 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-18 07:57:09,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-18 07:57:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-18 07:57:10,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 2832 conjuncts, 511 conjunts are in the unsatisfiable core [2023-02-18 07:57:10,132 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-18 07:57:33,338 INFO L134 CoverageAnalysis]: Checked inductivity of 161925 backedges. 0 proven. 161925 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:57:33,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-18 07:59:29,946 INFO L134 CoverageAnalysis]: Checked inductivity of 161925 backedges. 0 proven. 161925 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-18 07:59:29,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151916989] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-18 07:59:29,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-18 07:59:29,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [511, 511, 511] total 1021 [2023-02-18 07:59:29,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256597408] [2023-02-18 07:59:29,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-18 07:59:29,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 1022 states [2023-02-18 07:59:29,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-18 07:59:30,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1022 interpolants. [2023-02-18 07:59:30,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261631, Invalid=781831, Unknown=0, NotChecked=0, Total=1043462 [2023-02-18 07:59:30,043 INFO L87 Difference]: Start difference. First operand 1921 states and 2175 transitions. Second operand has 1022 states, 1021 states have (on average 2.5014691478942215) internal successors, (2554), 1022 states have internal predecessors, (2554), 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)