./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 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/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:58:46,761 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:58:46,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:58:46,796 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:58:46,796 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:58:46,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:58:46,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:58:46,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:58:46,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:58:46,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:58:46,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:58:46,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:58:46,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:58:46,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:58:46,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:58:46,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:58:46,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:58:46,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:58:46,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:58:46,823 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:58:46,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:58:46,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:58:46,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:58:46,825 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:58:46,831 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:58:46,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:58:46,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:58:46,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:58:46,833 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:58:46,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:58:46,834 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:58:46,834 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:58:46,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:58:46,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:58:46,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:58:46,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:58:46,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:58:46,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:58:46,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:58:46,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:58:46,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:58:46,841 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-02-15 22:58:46,864 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:58:46,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:58:46,865 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:58:46,865 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:58:46,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:58:46,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:58:46,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:58:46,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:58:46,867 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:58:46,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:58:46,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:58:46,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:58:46,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:58:46,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:58:46,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:58:46,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:58:46,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:58:46,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:58:46,871 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:58:46,872 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 33be026e9ca846df0a8faa91fc9c2bbf64ee20dbba0f4f48a9cd42fbefb372d5 [2023-02-15 22:58:47,017 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:58:47,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:58:47,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:58:47,033 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:58:47,033 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:58:47,034 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-15 22:58:48,073 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:58:48,203 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:58:48,204 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-15 22:58:48,207 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b78e973f/ef82a19ddedd4a0fa3d5f3368fb06465/FLAG2ab733a61 [2023-02-15 22:58:48,216 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b78e973f/ef82a19ddedd4a0fa3d5f3368fb06465 [2023-02-15 22:58:48,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:58:48,219 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:58:48,219 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:58:48,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:58:48,222 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:58:48,222 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fa3e11e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48, skipping insertion in model container [2023-02-15 22:58:48,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:58:48,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:58:48,327 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:58:48,332 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:58:48,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:58:48,350 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:58:48,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48 WrapperNode [2023-02-15 22:58:48,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:58:48,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:58:48,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:58:48,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:58:48,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,373 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2023-02-15 22:58:48,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:58:48,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:58:48,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:58:48,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:58:48,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,380 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,384 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,388 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,389 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,392 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:58:48,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:58:48,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:58:48,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:58:48,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (1/1) ... [2023-02-15 22:58:48,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:58:48,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:48,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-02-15 22:58:48,454 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-02-15 22:58:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:58:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:58:48,511 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:58:48,513 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:58:48,630 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:58:48,635 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:58:48,637 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:58:48,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:48 BoogieIcfgContainer [2023-02-15 22:58:48,639 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:58:48,641 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:58:48,641 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:58:48,643 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:58:48,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:58:48" (1/3) ... [2023-02-15 22:58:48,644 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10780cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:48, skipping insertion in model container [2023-02-15 22:58:48,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:58:48" (2/3) ... [2023-02-15 22:58:48,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10780cbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:58:48, skipping insertion in model container [2023-02-15 22:58:48,645 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:58:48" (3/3) ... [2023-02-15 22:58:48,649 INFO L112 eAbstractionObserver]: Analyzing ICFG LarrazOliverasRodriguez-CarbonellRubio-FMCAD2013-Fig1.c [2023-02-15 22:58:48,663 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:58:48,664 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2023-02-15 22:58:48,699 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:58:48,704 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;@28280346, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:58:48,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-02-15 22:58:48,707 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:48,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-15 22:58:48,711 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:48,711 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-15 22:58:48,712 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:48,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:48,719 INFO L85 PathProgramCache]: Analyzing trace with hash 28693987, now seen corresponding path program 1 times [2023-02-15 22:58:48,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:48,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411569233] [2023-02-15 22:58:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:48,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:48,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:48,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:48,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411569233] [2023-02-15 22:58:48,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411569233] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:48,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:48,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:58:48,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479956901] [2023-02-15 22:58:48,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:48,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:58:48,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:48,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:58:48,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:48,942 INFO L87 Difference]: Start difference. First operand has 25 states, 16 states have (on average 1.8125) internal successors, (29), 24 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:48,986 INFO L93 Difference]: Finished difference Result 54 states and 64 transitions. [2023-02-15 22:58:48,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:58:48,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-02-15 22:58:49,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,006 INFO L225 Difference]: With dead ends: 54 [2023-02-15 22:58:49,006 INFO L226 Difference]: Without dead ends: 24 [2023-02-15 22:58:49,008 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:49,010 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-02-15 22:58:49,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 23. [2023-02-15 22:58:49,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.6) internal successors, (24), 22 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2023-02-15 22:58:49,047 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 5 [2023-02-15 22:58:49,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,047 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2023-02-15 22:58:49,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,047 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2023-02-15 22:58:49,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 22:58:49,048 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,048 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:58:49,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,049 INFO L85 PathProgramCache]: Analyzing trace with hash 889513645, now seen corresponding path program 1 times [2023-02-15 22:58:49,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784004239] [2023-02-15 22:58:49,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784004239] [2023-02-15 22:58:49,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784004239] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,086 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,086 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:58:49,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19856645] [2023-02-15 22:58:49,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:58:49,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:58:49,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:49,088 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,114 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-02-15 22:58:49,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:58:49,114 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2023-02-15 22:58:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,115 INFO L225 Difference]: With dead ends: 23 [2023-02-15 22:58:49,115 INFO L226 Difference]: Without dead ends: 22 [2023-02-15 22:58:49,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:49,117 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 14 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 10 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-02-15 22:58:49,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-02-15 22:58:49,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 21 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-02-15 22:58:49,121 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 6 [2023-02-15 22:58:49,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,121 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-02-15 22:58:49,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-02-15 22:58:49,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:58:49,122 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,122 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,122 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:58:49,122 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,123 INFO L85 PathProgramCache]: Analyzing trace with hash 124122716, now seen corresponding path program 1 times [2023-02-15 22:58:49,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590224623] [2023-02-15 22:58:49,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590224623] [2023-02-15 22:58:49,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590224623] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:58:49,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401502860] [2023-02-15 22:58:49,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:58:49,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:58:49,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:58:49,187 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,243 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2023-02-15 22:58:49,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 22:58:49,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 22:58:49,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,245 INFO L225 Difference]: With dead ends: 42 [2023-02-15 22:58:49,245 INFO L226 Difference]: Without dead ends: 41 [2023-02-15 22:58:49,245 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:58:49,252 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 22 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 21 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-15 22:58:49,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 29. [2023-02-15 22:58:49,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.5909090909090908) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2023-02-15 22:58:49,257 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 8 [2023-02-15 22:58:49,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,257 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2023-02-15 22:58:49,257 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,257 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2023-02-15 22:58:49,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 22:58:49,258 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,258 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:58:49,277 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,277 INFO L85 PathProgramCache]: Analyzing trace with hash 124122767, now seen corresponding path program 1 times [2023-02-15 22:58:49,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253037172] [2023-02-15 22:58:49,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253037172] [2023-02-15 22:58:49,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1253037172] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:58:49,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715378784] [2023-02-15 22:58:49,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:58:49,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:58:49,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,304 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,340 INFO L93 Difference]: Finished difference Result 59 states and 74 transitions. [2023-02-15 22:58:49,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:58:49,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-15 22:58:49,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,342 INFO L225 Difference]: With dead ends: 59 [2023-02-15 22:58:49,342 INFO L226 Difference]: Without dead ends: 57 [2023-02-15 22:58:49,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,343 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 24 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 26 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2023-02-15 22:58:49,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 46. [2023-02-15 22:58:49,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 39 states have (on average 1.564102564102564) internal successors, (61), 45 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 61 transitions. [2023-02-15 22:58:49,350 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 61 transitions. Word has length 8 [2023-02-15 22:58:49,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,351 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 61 transitions. [2023-02-15 22:58:49,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-02-15 22:58:49,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:58:49,351 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,352 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:58:49,352 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,353 INFO L85 PathProgramCache]: Analyzing trace with hash -447163028, now seen corresponding path program 1 times [2023-02-15 22:58:49,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702005345] [2023-02-15 22:58:49,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702005345] [2023-02-15 22:58:49,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702005345] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,391 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,391 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:58:49,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919428340] [2023-02-15 22:58:49,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:58:49,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:58:49,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,403 INFO L87 Difference]: Start difference. First operand 46 states and 61 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,440 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2023-02-15 22:58:49,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:58:49,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 22:58:49,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,442 INFO L225 Difference]: With dead ends: 61 [2023-02-15 22:58:49,442 INFO L226 Difference]: Without dead ends: 60 [2023-02-15 22:58:49,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,443 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 15 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 20 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2023-02-15 22:58:49,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2023-02-15 22:58:49,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 47 states have (on average 1.553191489361702) internal successors, (73), 53 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 73 transitions. [2023-02-15 22:58:49,453 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 73 transitions. Word has length 9 [2023-02-15 22:58:49,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,453 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 73 transitions. [2023-02-15 22:58:49,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,454 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 73 transitions. [2023-02-15 22:58:49,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:58:49,454 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 22:58:49,454 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,455 INFO L85 PathProgramCache]: Analyzing trace with hash -447161458, now seen corresponding path program 1 times [2023-02-15 22:58:49,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223840381] [2023-02-15 22:58:49,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223840381] [2023-02-15 22:58:49,477 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223840381] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:58:49,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159188215] [2023-02-15 22:58:49,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:58:49,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:58:49,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,479 INFO L87 Difference]: Start difference. First operand 54 states and 73 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,517 INFO L93 Difference]: Finished difference Result 98 states and 135 transitions. [2023-02-15 22:58:49,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:58:49,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 22:58:49,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,519 INFO L225 Difference]: With dead ends: 98 [2023-02-15 22:58:49,519 INFO L226 Difference]: Without dead ends: 97 [2023-02-15 22:58:49,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,521 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 29 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 27 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-02-15 22:58:49,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 86. [2023-02-15 22:58:49,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.5316455696202531) internal successors, (121), 85 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2023-02-15 22:58:49,532 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 9 [2023-02-15 22:58:49,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,532 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2023-02-15 22:58:49,532 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,533 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2023-02-15 22:58:49,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 22:58:49,533 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,533 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:58:49,534 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,534 INFO L85 PathProgramCache]: Analyzing trace with hash -977103247, now seen corresponding path program 1 times [2023-02-15 22:58:49,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752571226] [2023-02-15 22:58:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752571226] [2023-02-15 22:58:49,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752571226] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:58:49,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049772680] [2023-02-15 22:58:49,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:58:49,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:58:49,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:58:49,561 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,581 INFO L93 Difference]: Finished difference Result 86 states and 121 transitions. [2023-02-15 22:58:49,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:58:49,581 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-02-15 22:58:49,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,582 INFO L225 Difference]: With dead ends: 86 [2023-02-15 22:58:49,582 INFO L226 Difference]: Without dead ends: 85 [2023-02-15 22:58:49,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:58:49,583 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 17 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 17 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-02-15 22:58:49,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-02-15 22:58:49,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 79 states have (on average 1.4556962025316456) internal successors, (115), 84 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 115 transitions. [2023-02-15 22:58:49,592 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 115 transitions. Word has length 10 [2023-02-15 22:58:49,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,592 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 115 transitions. [2023-02-15 22:58:49,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,593 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 115 transitions. [2023-02-15 22:58:49,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 22:58:49,593 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,593 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 22:58:49,594 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,594 INFO L85 PathProgramCache]: Analyzing trace with hash -225429520, now seen corresponding path program 1 times [2023-02-15 22:58:49,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108554251] [2023-02-15 22:58:49,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108554251] [2023-02-15 22:58:49,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108554251] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:58:49,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:58:49,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:58:49,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494784480] [2023-02-15 22:58:49,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:58:49,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:58:49,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:49,614 INFO L87 Difference]: Start difference. First operand 85 states and 115 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:49,622 INFO L93 Difference]: Finished difference Result 85 states and 115 transitions. [2023-02-15 22:58:49,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:58:49,623 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2023-02-15 22:58:49,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:49,623 INFO L225 Difference]: With dead ends: 85 [2023-02-15 22:58:49,623 INFO L226 Difference]: Without dead ends: 84 [2023-02-15 22:58:49,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:58:49,624 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 8 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:49,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:49,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2023-02-15 22:58:49,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2023-02-15 22:58:49,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.379746835443038) internal successors, (109), 83 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2023-02-15 22:58:49,632 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 11 [2023-02-15 22:58:49,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:49,632 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2023-02-15 22:58:49,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2023-02-15 22:58:49,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 22:58:49,633 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:49,633 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:49,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 22:58:49,634 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:49,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash -458138511, now seen corresponding path program 1 times [2023-02-15 22:58:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:49,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495417084] [2023-02-15 22:58:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,675 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:49,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495417084] [2023-02-15 22:58:49,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495417084] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:49,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1418529808] [2023-02-15 22:58:49,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:49,677 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:49,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:49,688 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:49,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:58:49,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:49,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 22:58:49,767 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:49,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:49,930 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:49,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1418529808] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:49,931 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:49,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-02-15 22:58:49,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465124122] [2023-02-15 22:58:49,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:49,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:58:49,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:49,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:58:49,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:58:49,933 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:50,276 INFO L93 Difference]: Finished difference Result 214 states and 298 transitions. [2023-02-15 22:58:50,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-02-15 22:58:50,276 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-02-15 22:58:50,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:50,277 INFO L225 Difference]: With dead ends: 214 [2023-02-15 22:58:50,277 INFO L226 Difference]: Without dead ends: 211 [2023-02-15 22:58:50,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=354, Invalid=768, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 22:58:50,278 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 183 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:50,279 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 30 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:58:50,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2023-02-15 22:58:50,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 110. [2023-02-15 22:58:50,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 107 states have (on average 1.280373831775701) internal successors, (137), 109 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 137 transitions. [2023-02-15 22:58:50,288 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 137 transitions. Word has length 14 [2023-02-15 22:58:50,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:50,289 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 137 transitions. [2023-02-15 22:58:50,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.923076923076923) internal successors, (38), 14 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,289 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 137 transitions. [2023-02-15 22:58:50,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 22:58:50,289 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:50,289 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 22:58:50,298 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 22:58:50,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:50,494 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:50,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:50,495 INFO L85 PathProgramCache]: Analyzing trace with hash -1317391881, now seen corresponding path program 1 times [2023-02-15 22:58:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:50,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743929770] [2023-02-15 22:58:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:50,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:50,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743929770] [2023-02-15 22:58:50,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743929770] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:50,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855600274] [2023-02-15 22:58:50,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:50,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:50,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:50,553 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:50,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:58:50,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:50,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 6 conjunts are in the unsatisfiable core [2023-02-15 22:58:50,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:50,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:50,684 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:50,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855600274] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:50,685 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:50,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2023-02-15 22:58:50,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96199378] [2023-02-15 22:58:50,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:50,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:58:50,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:50,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:58:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:58:50,687 INFO L87 Difference]: Start difference. First operand 110 states and 137 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:50,849 INFO L93 Difference]: Finished difference Result 229 states and 287 transitions. [2023-02-15 22:58:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 22:58:50,850 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 15 [2023-02-15 22:58:50,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:50,851 INFO L225 Difference]: With dead ends: 229 [2023-02-15 22:58:50,851 INFO L226 Difference]: Without dead ends: 228 [2023-02-15 22:58:50,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=151, Invalid=269, Unknown=0, NotChecked=0, Total=420 [2023-02-15 22:58:50,852 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 130 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:50,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 32 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:58:50,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2023-02-15 22:58:50,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 170. [2023-02-15 22:58:50,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 167 states have (on average 1.2455089820359282) internal successors, (208), 169 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 208 transitions. [2023-02-15 22:58:50,864 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 208 transitions. Word has length 15 [2023-02-15 22:58:50,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:50,864 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 208 transitions. [2023-02-15 22:58:50,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:50,865 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 208 transitions. [2023-02-15 22:58:50,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 22:58:50,865 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:50,865 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:50,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:51,070 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,SelfDestructingSolverStorable9 [2023-02-15 22:58:51,071 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:51,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:51,071 INFO L85 PathProgramCache]: Analyzing trace with hash -730743378, now seen corresponding path program 1 times [2023-02-15 22:58:51,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:51,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182124546] [2023-02-15 22:58:51,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:51,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:51,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182124546] [2023-02-15 22:58:51,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182124546] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:51,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315160391] [2023-02-15 22:58:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:51,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:51,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:51,102 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:51,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:58:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:51,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 22:58:51,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:51,156 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:51,185 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:51,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315160391] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:51,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:51,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-02-15 22:58:51,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763880916] [2023-02-15 22:58:51,186 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:51,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:58:51,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:51,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:58:51,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:58:51,187 INFO L87 Difference]: Start difference. First operand 170 states and 208 transitions. Second operand has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2023-02-15 22:58:51,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:51,246 INFO L93 Difference]: Finished difference Result 378 states and 473 transitions. [2023-02-15 22:58:51,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 22:58:51,246 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) Word has length 19 [2023-02-15 22:58:51,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:51,248 INFO L225 Difference]: With dead ends: 378 [2023-02-15 22:58:51,248 INFO L226 Difference]: Without dead ends: 377 [2023-02-15 22:58:51,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:58:51,249 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 47 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:51,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 44 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:58:51,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2023-02-15 22:58:51,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 277. [2023-02-15 22:58:51,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 274 states have (on average 1.2372262773722629) internal successors, (339), 276 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:51,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 339 transitions. [2023-02-15 22:58:51,269 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 339 transitions. Word has length 19 [2023-02-15 22:58:51,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:51,269 INFO L495 AbstractCegarLoop]: Abstraction has 277 states and 339 transitions. [2023-02-15 22:58:51,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 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) [2023-02-15 22:58:51,270 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 339 transitions. [2023-02-15 22:58:51,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-02-15 22:58:51,270 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:51,271 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 22:58:51,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-15 22:58:51,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:51,475 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:51,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:51,475 INFO L85 PathProgramCache]: Analyzing trace with hash -2017559647, now seen corresponding path program 1 times [2023-02-15 22:58:51,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:51,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768304895] [2023-02-15 22:58:51,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:51,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:51,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:58:51,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:51,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768304895] [2023-02-15 22:58:51,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768304895] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:51,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925992656] [2023-02-15 22:58:51,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:51,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:51,542 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:51,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:58:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:51,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:58:51,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:51,654 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:58:51,654 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:51,743 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-02-15 22:58:51,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925992656] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:51,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:51,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2023-02-15 22:58:51,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401088901] [2023-02-15 22:58:51,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:51,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-02-15 22:58:51,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:51,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-02-15 22:58:51,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2023-02-15 22:58:51,745 INFO L87 Difference]: Start difference. First operand 277 states and 339 transitions. Second operand has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:52,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:52,186 INFO L93 Difference]: Finished difference Result 511 states and 639 transitions. [2023-02-15 22:58:52,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-02-15 22:58:52,186 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2023-02-15 22:58:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:52,188 INFO L225 Difference]: With dead ends: 511 [2023-02-15 22:58:52,188 INFO L226 Difference]: Without dead ends: 509 [2023-02-15 22:58:52,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=513, Invalid=1127, Unknown=0, NotChecked=0, Total=1640 [2023-02-15 22:58:52,189 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 73 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:52,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 7 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 332 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:58:52,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states. [2023-02-15 22:58:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 311. [2023-02-15 22:58:52,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 308 states have (on average 1.2175324675324675) internal successors, (375), 310 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 375 transitions. [2023-02-15 22:58:52,207 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 375 transitions. Word has length 25 [2023-02-15 22:58:52,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:52,207 INFO L495 AbstractCegarLoop]: Abstraction has 311 states and 375 transitions. [2023-02-15 22:58:52,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.9444444444444446) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:52,208 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 375 transitions. [2023-02-15 22:58:52,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-02-15 22:58:52,209 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:52,209 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 22:58:52,224 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:52,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:52,414 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:52,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:52,414 INFO L85 PathProgramCache]: Analyzing trace with hash 678241780, now seen corresponding path program 2 times [2023-02-15 22:58:52,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:52,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341558812] [2023-02-15 22:58:52,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:52,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:52,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:52,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341558812] [2023-02-15 22:58:52,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341558812] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:52,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607481585] [2023-02-15 22:58:52,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:58:52,484 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:52,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:52,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:52,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:58:52,515 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:58:52,515 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:58:52,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:58:52,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:52,620 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:52,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:52,704 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:52,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607481585] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:52,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:52,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 21 [2023-02-15 22:58:52,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350765215] [2023-02-15 22:58:52,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:52,705 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-02-15 22:58:52,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:52,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-02-15 22:58:52,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2023-02-15 22:58:52,706 INFO L87 Difference]: Start difference. First operand 311 states and 375 transitions. Second operand has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:53,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:53,544 INFO L93 Difference]: Finished difference Result 1537 states and 1825 transitions. [2023-02-15 22:58:53,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-02-15 22:58:53,544 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 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 30 [2023-02-15 22:58:53,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:53,548 INFO L225 Difference]: With dead ends: 1537 [2023-02-15 22:58:53,548 INFO L226 Difference]: Without dead ends: 1536 [2023-02-15 22:58:53,551 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2410 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=1687, Invalid=4475, Unknown=0, NotChecked=0, Total=6162 [2023-02-15 22:58:53,551 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 317 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:53,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 34 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:58:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1536 states. [2023-02-15 22:58:53,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1536 to 715. [2023-02-15 22:58:53,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 712 states have (on average 1.2148876404494382) internal successors, (865), 714 states have internal predecessors, (865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:53,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 865 transitions. [2023-02-15 22:58:53,601 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 865 transitions. Word has length 30 [2023-02-15 22:58:53,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:53,601 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 865 transitions. [2023-02-15 22:58:53,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.095238095238095) internal successors, (86), 22 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:53,601 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 865 transitions. [2023-02-15 22:58:53,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-02-15 22:58:53,602 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:53,602 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 22:58:53,637 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:53,821 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,SelfDestructingSolverStorable12 [2023-02-15 22:58:53,821 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:53,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:53,822 INFO L85 PathProgramCache]: Analyzing trace with hash 499781144, now seen corresponding path program 2 times [2023-02-15 22:58:53,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:53,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853509599] [2023-02-15 22:58:53,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:53,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:53,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:53,947 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:53,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:53,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853509599] [2023-02-15 22:58:53,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853509599] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:53,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783015681] [2023-02-15 22:58:53,947 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:58:53,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:53,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:53,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:53,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:58:53,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:58:53,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:58:53,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 12 conjunts are in the unsatisfiable core [2023-02-15 22:58:53,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:54,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:54,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783015681] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:54,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:54,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2023-02-15 22:58:54,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139245286] [2023-02-15 22:58:54,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:54,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 22:58:54,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:54,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 22:58:54,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=745, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:58:54,294 INFO L87 Difference]: Start difference. First operand 715 states and 865 transitions. Second operand has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:55,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:55,332 INFO L93 Difference]: Finished difference Result 1329 states and 1575 transitions. [2023-02-15 22:58:55,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 22:58:55,332 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 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 33 [2023-02-15 22:58:55,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:55,335 INFO L225 Difference]: With dead ends: 1329 [2023-02-15 22:58:55,335 INFO L226 Difference]: Without dead ends: 1328 [2023-02-15 22:58:55,337 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1445 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1319, Invalid=2841, Unknown=0, NotChecked=0, Total=4160 [2023-02-15 22:58:55,338 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 522 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:55,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 106 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:58:55,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2023-02-15 22:58:55,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 886. [2023-02-15 22:58:55,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 883 states have (on average 1.2095130237825595) internal successors, (1068), 885 states have internal predecessors, (1068), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:55,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1068 transitions. [2023-02-15 22:58:55,394 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1068 transitions. Word has length 33 [2023-02-15 22:58:55,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:55,394 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1068 transitions. [2023-02-15 22:58:55,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 3.064516129032258) internal successors, (95), 32 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:55,395 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1068 transitions. [2023-02-15 22:58:55,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-15 22:58:55,397 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:55,397 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 22:58:55,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:55,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:55,602 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:55,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:55,603 INFO L85 PathProgramCache]: Analyzing trace with hash -746656358, now seen corresponding path program 1 times [2023-02-15 22:58:55,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:55,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308467695] [2023-02-15 22:58:55,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:55,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:55,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:55,649 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-02-15 22:58:55,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:55,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308467695] [2023-02-15 22:58:55,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308467695] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:55,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978570402] [2023-02-15 22:58:55,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:55,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:55,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:55,651 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:55,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:58:55,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:55,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:58:55,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:55,735 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:55,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:55,800 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:55,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978570402] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:55,801 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:55,801 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 15 [2023-02-15 22:58:55,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718369505] [2023-02-15 22:58:55,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:55,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 22:58:55,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:55,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 22:58:55,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=145, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:58:55,803 INFO L87 Difference]: Start difference. First operand 886 states and 1068 transitions. Second operand has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:56,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:56,262 INFO L93 Difference]: Finished difference Result 3180 states and 3901 transitions. [2023-02-15 22:58:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 22:58:56,263 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2023-02-15 22:58:56,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:56,270 INFO L225 Difference]: With dead ends: 3180 [2023-02-15 22:58:56,277 INFO L226 Difference]: Without dead ends: 2976 [2023-02-15 22:58:56,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 388 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=545, Invalid=1015, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 22:58:56,281 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 245 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:56,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 27 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:58:56,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2976 states. [2023-02-15 22:58:56,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2976 to 445. [2023-02-15 22:58:56,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 443 states have (on average 1.18510158013544) internal successors, (525), 444 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:56,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 525 transitions. [2023-02-15 22:58:56,324 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 525 transitions. Word has length 35 [2023-02-15 22:58:56,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:56,325 INFO L495 AbstractCegarLoop]: Abstraction has 445 states and 525 transitions. [2023-02-15 22:58:56,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.6) internal successors, (84), 16 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 525 transitions. [2023-02-15 22:58:56,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-02-15 22:58:56,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:56,327 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:58:56,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:56,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:56,532 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:56,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:56,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1457588718, now seen corresponding path program 2 times [2023-02-15 22:58:56,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:56,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530323555] [2023-02-15 22:58:56,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:56,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:56,636 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:56,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:56,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530323555] [2023-02-15 22:58:56,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530323555] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:56,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293569297] [2023-02-15 22:58:56,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:58:56,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:56,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:56,653 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:56,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:58:56,693 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:58:56,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:58:56,709 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:58:56,710 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:56,743 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:56,744 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:56,816 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:56,817 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293569297] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:56,817 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:56,817 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2023-02-15 22:58:56,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746481365] [2023-02-15 22:58:56,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:56,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-02-15 22:58:56,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:56,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-02-15 22:58:56,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:58:56,819 INFO L87 Difference]: Start difference. First operand 445 states and 525 transitions. Second operand has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:57,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:58:57,023 INFO L93 Difference]: Finished difference Result 1706 states and 2070 transitions. [2023-02-15 22:58:57,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-02-15 22:58:57,023 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2023-02-15 22:58:57,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:58:57,027 INFO L225 Difference]: With dead ends: 1706 [2023-02-15 22:58:57,028 INFO L226 Difference]: Without dead ends: 1705 [2023-02-15 22:58:57,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2023-02-15 22:58:57,028 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 149 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:58:57,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 83 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:58:57,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1705 states. [2023-02-15 22:58:57,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1705 to 1203. [2023-02-15 22:58:57,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1203 states, 1201 states have (on average 1.1740216486261448) internal successors, (1410), 1202 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:57,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1203 states to 1203 states and 1410 transitions. [2023-02-15 22:58:57,139 INFO L78 Accepts]: Start accepts. Automaton has 1203 states and 1410 transitions. Word has length 39 [2023-02-15 22:58:57,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:58:57,140 INFO L495 AbstractCegarLoop]: Abstraction has 1203 states and 1410 transitions. [2023-02-15 22:58:57,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 5.066666666666666) internal successors, (76), 16 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:58:57,140 INFO L276 IsEmpty]: Start isEmpty. Operand 1203 states and 1410 transitions. [2023-02-15 22:58:57,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-02-15 22:58:57,140 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:58:57,141 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-15 22:58:57,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:58:57,345 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,SelfDestructingSolverStorable15 [2023-02-15 22:58:57,345 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:58:57,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:58:57,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1726793311, now seen corresponding path program 3 times [2023-02-15 22:58:57,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:58:57,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220431903] [2023-02-15 22:58:57,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:58:57,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:58:57,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:58:57,469 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:57,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:58:57,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220431903] [2023-02-15 22:58:57,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220431903] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:58:57,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810612473] [2023-02-15 22:58:57,469 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:58:57,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:58:57,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:58:57,471 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:58:57,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:58:57,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-02-15 22:58:57,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:58:57,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 22:58:57,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:58:57,707 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:57,708 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:58:57,885 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:58:57,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810612473] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:58:57,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:58:57,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 36 [2023-02-15 22:58:57,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411912571] [2023-02-15 22:58:57,885 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:58:57,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-15 22:58:57,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:58:57,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-15 22:58:57,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=1026, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 22:58:57,887 INFO L87 Difference]: Start difference. First operand 1203 states and 1410 transitions. Second operand has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:02,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:02,645 INFO L93 Difference]: Finished difference Result 10558 states and 12329 transitions. [2023-02-15 22:59:02,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2023-02-15 22:59:02,646 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 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 46 [2023-02-15 22:59:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:02,669 INFO L225 Difference]: With dead ends: 10558 [2023-02-15 22:59:02,669 INFO L226 Difference]: Without dead ends: 10557 [2023-02-15 22:59:02,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26171 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=12057, Invalid=43403, Unknown=0, NotChecked=0, Total=55460 [2023-02-15 22:59:02,678 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 868 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 948 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:02,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 43 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [200 Valid, 948 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 22:59:02,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10557 states. [2023-02-15 22:59:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10557 to 3947. [2023-02-15 22:59:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3947 states, 3945 states have (on average 1.1842839036755386) internal successors, (4672), 3946 states have internal predecessors, (4672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:03,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3947 states to 3947 states and 4672 transitions. [2023-02-15 22:59:03,314 INFO L78 Accepts]: Start accepts. Automaton has 3947 states and 4672 transitions. Word has length 46 [2023-02-15 22:59:03,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:03,314 INFO L495 AbstractCegarLoop]: Abstraction has 3947 states and 4672 transitions. [2023-02-15 22:59:03,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 3.7222222222222223) internal successors, (134), 37 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:03,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3947 states and 4672 transitions. [2023-02-15 22:59:03,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-02-15 22:59:03,316 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:03,316 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2023-02-15 22:59:03,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-02-15 22:59:03,519 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,SelfDestructingSolverStorable16 [2023-02-15 22:59:03,520 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:03,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:03,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2065951787, now seen corresponding path program 4 times [2023-02-15 22:59:03,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:03,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720047471] [2023-02-15 22:59:03,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:03,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:03,784 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:03,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:03,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720047471] [2023-02-15 22:59:03,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720047471] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:03,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635396786] [2023-02-15 22:59:03,784 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 22:59:03,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:03,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:03,785 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:59:03,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:59:03,821 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 22:59:03,821 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:03,822 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 22:59:03,825 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:04,172 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:04,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:04,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635396786] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:04,507 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:04,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 17, 17] total 52 [2023-02-15 22:59:04,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039918216] [2023-02-15 22:59:04,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:04,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2023-02-15 22:59:04,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:04,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2023-02-15 22:59:04,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=549, Invalid=2207, Unknown=0, NotChecked=0, Total=2756 [2023-02-15 22:59:04,509 INFO L87 Difference]: Start difference. First operand 3947 states and 4672 transitions. Second operand has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:18,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:18,687 INFO L93 Difference]: Finished difference Result 6896 states and 8060 transitions. [2023-02-15 22:59:18,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 410 states. [2023-02-15 22:59:18,689 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 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 60 [2023-02-15 22:59:18,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:18,705 INFO L225 Difference]: With dead ends: 6896 [2023-02-15 22:59:18,705 INFO L226 Difference]: Without dead ends: 6895 [2023-02-15 22:59:18,729 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 531 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 443 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101119 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=44916, Invalid=152664, Unknown=0, NotChecked=0, Total=197580 [2023-02-15 22:59:18,729 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2150 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 2747 mSolverCounterSat, 885 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2150 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 3632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 885 IncrementalHoareTripleChecker+Valid, 2747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:18,730 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2150 Valid, 224 Invalid, 3632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [885 Valid, 2747 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 22:59:18,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6895 states. [2023-02-15 22:59:19,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6895 to 4643. [2023-02-15 22:59:19,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4643 states, 4641 states have (on average 1.1831501831501832) internal successors, (5491), 4642 states have internal predecessors, (5491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:19,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4643 states to 4643 states and 5491 transitions. [2023-02-15 22:59:19,491 INFO L78 Accepts]: Start accepts. Automaton has 4643 states and 5491 transitions. Word has length 60 [2023-02-15 22:59:19,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:19,492 INFO L495 AbstractCegarLoop]: Abstraction has 4643 states and 5491 transitions. [2023-02-15 22:59:19,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 3.3846153846153846) internal successors, (176), 53 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 4643 states and 5491 transitions. [2023-02-15 22:59:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-15 22:59:19,493 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:19,493 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-15 22:59:19,500 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-02-15 22:59:19,698 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,SelfDestructingSolverStorable17 [2023-02-15 22:59:19,698 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:19,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:19,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1453726494, now seen corresponding path program 5 times [2023-02-15 22:59:19,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:19,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059805494] [2023-02-15 22:59:19,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:19,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:19,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059805494] [2023-02-15 22:59:19,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059805494] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:19,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [346609983] [2023-02-15 22:59:19,887 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 22:59:19,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:19,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:19,897 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) [2023-02-15 22:59:19,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:59:19,930 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2023-02-15 22:59:19,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:19,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 10 conjunts are in the unsatisfiable core [2023-02-15 22:59:19,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:20,099 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-15 22:59:20,099 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:20,265 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2023-02-15 22:59:20,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [346609983] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:20,266 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:20,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 11] total 38 [2023-02-15 22:59:20,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655307591] [2023-02-15 22:59:20,266 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:20,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-15 22:59:20,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:20,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-15 22:59:20,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1222, Unknown=0, NotChecked=0, Total=1406 [2023-02-15 22:59:20,267 INFO L87 Difference]: Start difference. First operand 4643 states and 5491 transitions. Second operand has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:25,654 INFO L93 Difference]: Finished difference Result 12361 states and 14600 transitions. [2023-02-15 22:59:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2023-02-15 22:59:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 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 62 [2023-02-15 22:59:25,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:25,656 INFO L225 Difference]: With dead ends: 12361 [2023-02-15 22:59:25,656 INFO L226 Difference]: Without dead ends: 521 [2023-02-15 22:59:25,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 145 SyntacticMatches, 1 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22419 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=8533, Invalid=46927, Unknown=0, NotChecked=0, Total=55460 [2023-02-15 22:59:25,695 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 675 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 273 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 1319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 273 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:25,695 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 22 Invalid, 1319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [273 Valid, 1046 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-02-15 22:59:25,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2023-02-15 22:59:25,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 193. [2023-02-15 22:59:25,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 191 states have (on average 1.0994764397905759) internal successors, (210), 192 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:25,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 210 transitions. [2023-02-15 22:59:25,755 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 210 transitions. Word has length 62 [2023-02-15 22:59:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:25,756 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 210 transitions. [2023-02-15 22:59:25,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.0789473684210527) internal successors, (117), 38 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:25,757 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 210 transitions. [2023-02-15 22:59:25,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-02-15 22:59:25,757 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:25,757 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 3, 1, 1, 1, 1] [2023-02-15 22:59:25,762 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-02-15 22:59:25,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:25,962 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:25,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:25,962 INFO L85 PathProgramCache]: Analyzing trace with hash 727673482, now seen corresponding path program 6 times [2023-02-15 22:59:25,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:25,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571629536] [2023-02-15 22:59:25,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:25,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:25,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:26,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:26,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571629536] [2023-02-15 22:59:26,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571629536] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:26,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112106453] [2023-02-15 22:59:26,212 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 22:59:26,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:26,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:26,226 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) [2023-02-15 22:59:26,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:59:26,254 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2023-02-15 22:59:26,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:26,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 22:59:26,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:26,548 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:26,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:26,801 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:26,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112106453] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:26,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:26,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15, 15] total 50 [2023-02-15 22:59:26,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014439234] [2023-02-15 22:59:26,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:26,802 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2023-02-15 22:59:26,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:26,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2023-02-15 22:59:26,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=553, Invalid=1997, Unknown=0, NotChecked=0, Total=2550 [2023-02-15 22:59:26,804 INFO L87 Difference]: Start difference. First operand 193 states and 210 transitions. Second operand has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:28,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:28,947 INFO L93 Difference]: Finished difference Result 436 states and 458 transitions. [2023-02-15 22:59:28,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2023-02-15 22:59:28,947 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 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 62 [2023-02-15 22:59:28,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:28,948 INFO L225 Difference]: With dead ends: 436 [2023-02-15 22:59:28,948 INFO L226 Difference]: Without dead ends: 435 [2023-02-15 22:59:28,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7684 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=5282, Invalid=14458, Unknown=0, NotChecked=0, Total=19740 [2023-02-15 22:59:28,951 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 974 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 241 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 840 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 241 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:28,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 64 Invalid, 840 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [241 Valid, 599 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:59:28,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2023-02-15 22:59:29,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 183. [2023-02-15 22:59:29,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 181 states have (on average 1.1160220994475138) internal successors, (202), 182 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:29,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 202 transitions. [2023-02-15 22:59:29,017 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 202 transitions. Word has length 62 [2023-02-15 22:59:29,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:29,017 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 202 transitions. [2023-02-15 22:59:29,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 3.64) internal successors, (182), 51 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:29,017 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 202 transitions. [2023-02-15 22:59:29,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-02-15 22:59:29,018 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:29,018 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1] [2023-02-15 22:59:29,024 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 22:59:29,222 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:29,223 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:29,223 INFO L85 PathProgramCache]: Analyzing trace with hash -362593675, now seen corresponding path program 7 times [2023-02-15 22:59:29,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:29,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531574889] [2023-02-15 22:59:29,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:29,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:29,482 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:29,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:29,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531574889] [2023-02-15 22:59:29,482 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531574889] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:29,482 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926091540] [2023-02-15 22:59:29,482 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 22:59:29,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:29,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:29,483 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) [2023-02-15 22:59:29,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:59:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:29,514 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 21 conjunts are in the unsatisfiable core [2023-02-15 22:59:29,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:29,923 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:29,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 285 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:30,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926091540] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:30,322 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:30,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 19, 19] total 64 [2023-02-15 22:59:30,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532006380] [2023-02-15 22:59:30,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:30,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2023-02-15 22:59:30,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:30,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2023-02-15 22:59:30,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=3289, Unknown=0, NotChecked=0, Total=4160 [2023-02-15 22:59:30,324 INFO L87 Difference]: Start difference. First operand 183 states and 202 transitions. Second operand has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 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) [2023-02-15 22:59:33,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:33,677 INFO L93 Difference]: Finished difference Result 616 states and 647 transitions. [2023-02-15 22:59:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2023-02-15 22:59:33,678 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 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 78 [2023-02-15 22:59:33,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:33,695 INFO L225 Difference]: With dead ends: 616 [2023-02-15 22:59:33,695 INFO L226 Difference]: Without dead ends: 615 [2023-02-15 22:59:33,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16721 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=10716, Invalid=30290, Unknown=0, NotChecked=0, Total=41006 [2023-02-15 22:59:33,700 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1192 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 1299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:33,700 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 82 Invalid, 1299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:59:33,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 615 states. [2023-02-15 22:59:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 615 to 209. [2023-02-15 22:59:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 207 states have (on average 1.144927536231884) internal successors, (237), 208 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:33,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 237 transitions. [2023-02-15 22:59:33,829 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 237 transitions. Word has length 78 [2023-02-15 22:59:33,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:33,838 INFO L495 AbstractCegarLoop]: Abstraction has 209 states and 237 transitions. [2023-02-15 22:59:33,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 3.59375) internal successors, (230), 65 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) [2023-02-15 22:59:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 237 transitions. [2023-02-15 22:59:33,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-02-15 22:59:33,839 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:33,839 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:59:33,847 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 22:59:34,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-02-15 22:59:34,043 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:34,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:34,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1221737874, now seen corresponding path program 3 times [2023-02-15 22:59:34,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:34,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331929114] [2023-02-15 22:59:34,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:34,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:34,202 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:34,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:34,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331929114] [2023-02-15 22:59:34,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331929114] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:34,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1981809388] [2023-02-15 22:59:34,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:59:34,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:34,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:34,210 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) [2023-02-15 22:59:34,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 22:59:34,242 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 22:59:34,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:34,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 22:59:34,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:34,322 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:34,322 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:34,598 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:34,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1981809388] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:34,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:34,599 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 31 [2023-02-15 22:59:34,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98383545] [2023-02-15 22:59:34,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:34,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2023-02-15 22:59:34,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:34,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2023-02-15 22:59:34,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:59:34,600 INFO L87 Difference]: Start difference. First operand 209 states and 237 transitions. Second operand has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:35,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:35,299 INFO L93 Difference]: Finished difference Result 935 states and 983 transitions. [2023-02-15 22:59:35,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2023-02-15 22:59:35,300 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 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 79 [2023-02-15 22:59:35,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:35,301 INFO L225 Difference]: With dead ends: 935 [2023-02-15 22:59:35,301 INFO L226 Difference]: Without dead ends: 934 [2023-02-15 22:59:35,302 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2023-02-15 22:59:35,304 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 530 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 530 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:35,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [530 Valid, 161 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:59:35,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 934 states. [2023-02-15 22:59:35,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 934 to 261. [2023-02-15 22:59:35,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 259 states have (on average 1.135135135135135) internal successors, (294), 260 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:35,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 294 transitions. [2023-02-15 22:59:35,415 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 294 transitions. Word has length 79 [2023-02-15 22:59:35,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:35,415 INFO L495 AbstractCegarLoop]: Abstraction has 261 states and 294 transitions. [2023-02-15 22:59:35,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 5.032258064516129) internal successors, (156), 32 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:35,415 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 294 transitions. [2023-02-15 22:59:35,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-02-15 22:59:35,417 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:35,417 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 14, 1, 1, 1, 1] [2023-02-15 22:59:35,421 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-02-15 22:59:35,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:35,622 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:35,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:35,622 INFO L85 PathProgramCache]: Analyzing trace with hash 698004038, now seen corresponding path program 3 times [2023-02-15 22:59:35,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:35,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681665161] [2023-02-15 22:59:35,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:35,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:35,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:36,159 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:36,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:36,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681665161] [2023-02-15 22:59:36,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681665161] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:36,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886766816] [2023-02-15 22:59:36,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:59:36,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:36,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:36,178 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) [2023-02-15 22:59:36,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 22:59:36,273 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 22:59:36,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:36,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 22:59:36,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:37,126 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:37,126 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:38,026 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:38,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886766816] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:38,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:38,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 91 [2023-02-15 22:59:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179799866] [2023-02-15 22:59:38,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:38,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2023-02-15 22:59:38,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2023-02-15 22:59:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1637, Invalid=6735, Unknown=0, NotChecked=0, Total=8372 [2023-02-15 22:59:38,030 INFO L87 Difference]: Start difference. First operand 261 states and 294 transitions. Second operand has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:43,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:59:43,578 INFO L93 Difference]: Finished difference Result 652 states and 700 transitions. [2023-02-15 22:59:43,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2023-02-15 22:59:43,578 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 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 93 [2023-02-15 22:59:43,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:59:43,579 INFO L225 Difference]: With dead ends: 652 [2023-02-15 22:59:43,579 INFO L226 Difference]: Without dead ends: 651 [2023-02-15 22:59:43,580 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 173 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10731 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=8689, Invalid=21761, Unknown=0, NotChecked=0, Total=30450 [2023-02-15 22:59:43,581 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 657 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 3421 mSolverCounterSat, 270 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 3691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 270 IncrementalHoareTripleChecker+Valid, 3421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:59:43,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 216 Invalid, 3691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [270 Valid, 3421 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-02-15 22:59:43,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 651 states. [2023-02-15 22:59:43,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 651 to 357. [2023-02-15 22:59:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 355 states have (on average 1.0985915492957747) internal successors, (390), 356 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 390 transitions. [2023-02-15 22:59:43,805 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 390 transitions. Word has length 93 [2023-02-15 22:59:43,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:59:43,806 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 390 transitions. [2023-02-15 22:59:43,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 3.021978021978022) internal successors, (275), 92 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:59:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 390 transitions. [2023-02-15 22:59:43,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-02-15 22:59:43,807 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:59:43,807 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 5, 5, 5, 5, 5, 1, 1, 1, 1] [2023-02-15 22:59:43,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 22:59:44,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:44,007 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 22:59:44,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:59:44,008 INFO L85 PathProgramCache]: Analyzing trace with hash 873996727, now seen corresponding path program 8 times [2023-02-15 22:59:44,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:59:44,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195053874] [2023-02-15 22:59:44,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:59:44,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:59:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:59:44,404 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:44,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:59:44,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195053874] [2023-02-15 22:59:44,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195053874] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:59:44,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118734264] [2023-02-15 22:59:44,405 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:59:44,405 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:59:44,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:59:44,406 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) [2023-02-15 22:59:44,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 22:59:44,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:59:44,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:59:44,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 34 conjunts are in the unsatisfiable core [2023-02-15 22:59:44,451 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:59:45,312 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:45,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:59:46,125 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:59:46,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118734264] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:59:46,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:59:46,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32, 32] total 94 [2023-02-15 22:59:46,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726306812] [2023-02-15 22:59:46,126 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:59:46,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2023-02-15 22:59:46,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:59:46,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2023-02-15 22:59:46,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1279, Invalid=7651, Unknown=0, NotChecked=0, Total=8930 [2023-02-15 22:59:46,129 INFO L87 Difference]: Start difference. First operand 357 states and 390 transitions. Second operand has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:03,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:00:03,498 INFO L93 Difference]: Finished difference Result 1383 states and 1444 transitions. [2023-02-15 23:00:03,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 352 states. [2023-02-15 23:00:03,498 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 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 94 [2023-02-15 23:00:03,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:00:03,500 INFO L225 Difference]: With dead ends: 1383 [2023-02-15 23:00:03,500 INFO L226 Difference]: Without dead ends: 1382 [2023-02-15 23:00:03,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 423 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74825 ImplicationChecksByTransitivity, 14.4s TimeCoverageRelationStatistics Valid=38066, Invalid=142134, Unknown=0, NotChecked=0, Total=180200 [2023-02-15 23:00:03,508 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2810 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 8403 mSolverCounterSat, 693 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2810 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 9096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 693 IncrementalHoareTripleChecker+Valid, 8403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-02-15 23:00:03,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2810 Valid, 58 Invalid, 9096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [693 Valid, 8403 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-02-15 23:00:03,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1382 states. [2023-02-15 23:00:03,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1382 to 401. [2023-02-15 23:00:03,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 399 states have (on average 1.087719298245614) internal successors, (434), 400 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:03,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 434 transitions. [2023-02-15 23:00:03,813 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 434 transitions. Word has length 94 [2023-02-15 23:00:03,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:00:03,813 INFO L495 AbstractCegarLoop]: Abstraction has 401 states and 434 transitions. [2023-02-15 23:00:03,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 2.9574468085106385) internal successors, (278), 95 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:03,814 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 434 transitions. [2023-02-15 23:00:03,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-02-15 23:00:03,815 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:00:03,815 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1] [2023-02-15 23:00:03,821 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-02-15 23:00:04,019 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,SelfDestructingSolverStorable23 [2023-02-15 23:00:04,019 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:00:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:00:04,020 INFO L85 PathProgramCache]: Analyzing trace with hash -718111200, now seen corresponding path program 9 times [2023-02-15 23:00:04,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:00:04,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014099759] [2023-02-15 23:00:04,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:00:04,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:00:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:00:04,513 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:04,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:00:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014099759] [2023-02-15 23:00:04,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014099759] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:00:04,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970378429] [2023-02-15 23:00:04,514 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 23:00:04,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:00:04,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:00:04,529 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) [2023-02-15 23:00:04,532 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 23:00:04,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2023-02-15 23:00:04,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:00:04,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 23:00:04,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:00:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:04,965 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:00:05,352 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 0 proven. 431 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:05,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970378429] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:00:05,353 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:00:05,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 23, 23] total 78 [2023-02-15 23:00:05,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887391309] [2023-02-15 23:00:05,353 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:00:05,353 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2023-02-15 23:00:05,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:00:05,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2023-02-15 23:00:05,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1260, Invalid=4902, Unknown=0, NotChecked=0, Total=6162 [2023-02-15 23:00:05,355 INFO L87 Difference]: Start difference. First operand 401 states and 434 transitions. Second operand has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:12,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:00:12,015 INFO L93 Difference]: Finished difference Result 1023 states and 1064 transitions. [2023-02-15 23:00:12,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2023-02-15 23:00:12,016 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 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 94 [2023-02-15 23:00:12,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:00:12,017 INFO L225 Difference]: With dead ends: 1023 [2023-02-15 23:00:12,017 INFO L226 Difference]: Without dead ends: 1022 [2023-02-15 23:00:12,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28693 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=17823, Invalid=51083, Unknown=0, NotChecked=0, Total=68906 [2023-02-15 23:00:12,020 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 2100 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1097 mSolverCounterSat, 603 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 1700 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 603 IncrementalHoareTripleChecker+Valid, 1097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 23:00:12,020 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 98 Invalid, 1700 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [603 Valid, 1097 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 23:00:12,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1022 states. [2023-02-15 23:00:12,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1022 to 363. [2023-02-15 23:00:12,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 361 states have (on average 1.0997229916897506) internal successors, (397), 362 states have internal predecessors, (397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:12,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 397 transitions. [2023-02-15 23:00:12,313 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 397 transitions. Word has length 94 [2023-02-15 23:00:12,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:00:12,313 INFO L495 AbstractCegarLoop]: Abstraction has 363 states and 397 transitions. [2023-02-15 23:00:12,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 3.5641025641025643) internal successors, (278), 79 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 397 transitions. [2023-02-15 23:00:12,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-02-15 23:00:12,314 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:00:12,314 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 13, 13, 7, 7, 7, 7, 7, 6, 1, 1, 1, 1] [2023-02-15 23:00:12,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 23:00:12,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:00:12,520 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:00:12,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:00:12,520 INFO L85 PathProgramCache]: Analyzing trace with hash -190624373, now seen corresponding path program 10 times [2023-02-15 23:00:12,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:00:12,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083778865] [2023-02-15 23:00:12,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:00:12,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:00:12,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:00:13,063 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:13,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:00:13,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083778865] [2023-02-15 23:00:13,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083778865] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:00:13,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327645010] [2023-02-15 23:00:13,064 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-15 23:00:13,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:00:13,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:00:13,065 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) [2023-02-15 23:00:13,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 23:00:13,101 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-15 23:00:13,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:00:13,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 42 conjunts are in the unsatisfiable core [2023-02-15 23:00:13,104 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:00:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:14,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:00:15,088 INFO L134 CoverageAnalysis]: Checked inductivity of 607 backedges. 0 proven. 607 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:15,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327645010] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:00:15,088 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:00:15,089 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2023-02-15 23:00:15,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882592188] [2023-02-15 23:00:15,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:00:15,089 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2023-02-15 23:00:15,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:00:15,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2023-02-15 23:00:15,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2779, Invalid=11263, Unknown=0, NotChecked=0, Total=14042 [2023-02-15 23:00:15,093 INFO L87 Difference]: Start difference. First operand 363 states and 397 transitions. Second operand has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:48,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:00:48,792 INFO L93 Difference]: Finished difference Result 2325 states and 2387 transitions. [2023-02-15 23:00:48,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 602 states. [2023-02-15 23:00:48,793 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2023-02-15 23:00:48,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:00:48,795 INFO L225 Difference]: With dead ends: 2325 [2023-02-15 23:00:48,800 INFO L226 Difference]: Without dead ends: 2324 [2023-02-15 23:00:48,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 698 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229628 ImplicationChecksByTransitivity, 25.4s TimeCoverageRelationStatistics Valid=98873, Invalid=390427, Unknown=0, NotChecked=0, Total=489300 [2023-02-15 23:00:48,818 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 7404 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 13974 mSolverCounterSat, 1806 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7404 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 15780 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1806 IncrementalHoareTripleChecker+Valid, 13974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-02-15 23:00:48,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7404 Valid, 30 Invalid, 15780 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1806 Valid, 13974 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-02-15 23:00:48,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2324 states. [2023-02-15 23:00:49,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2324 to 389. [2023-02-15 23:00:49,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 387 states have (on average 1.103359173126615) internal successors, (427), 388 states have internal predecessors, (427), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:49,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 427 transitions. [2023-02-15 23:00:49,197 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 427 transitions. Word has length 110 [2023-02-15 23:00:49,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:00:49,198 INFO L495 AbstractCegarLoop]: Abstraction has 389 states and 427 transitions. [2023-02-15 23:00:49,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.76271186440678) internal successors, (326), 119 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:00:49,198 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 427 transitions. [2023-02-15 23:00:49,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2023-02-15 23:00:49,199 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:00:49,199 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 8, 8, 8, 8, 8, 7, 1, 1, 1, 1] [2023-02-15 23:00:49,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-15 23:00:49,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:00:49,404 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:00:49,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:00:49,404 INFO L85 PathProgramCache]: Analyzing trace with hash 69722294, now seen corresponding path program 11 times [2023-02-15 23:00:49,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:00:49,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946469882] [2023-02-15 23:00:49,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:00:49,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:00:49,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:00:49,996 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:49,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:00:49,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946469882] [2023-02-15 23:00:49,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946469882] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:00:49,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711886407] [2023-02-15 23:00:49,996 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-02-15 23:00:49,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:00:49,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:00:49,997 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) [2023-02-15 23:00:50,017 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 23:00:50,059 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2023-02-15 23:00:50,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:00:50,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 23:00:50,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:00:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:51,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:00:52,568 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 813 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:00:52,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711886407] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:00:52,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:00:52,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 136 [2023-02-15 23:00:52,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520400468] [2023-02-15 23:00:52,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:00:52,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2023-02-15 23:00:52,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:00:52,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2023-02-15 23:00:52,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3670, Invalid=14962, Unknown=0, NotChecked=0, Total=18632 [2023-02-15 23:00:52,572 INFO L87 Difference]: Start difference. First operand 389 states and 427 transitions. Second operand has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:01:49,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:01:49,345 INFO L93 Difference]: Finished difference Result 2785 states and 2855 transitions. [2023-02-15 23:01:49,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 799 states. [2023-02-15 23:01:49,346 INFO L78 Accepts]: Start accepts. Automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 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 126 [2023-02-15 23:01:49,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:01:49,349 INFO L225 Difference]: With dead ends: 2785 [2023-02-15 23:01:49,349 INFO L226 Difference]: Without dead ends: 2784 [2023-02-15 23:01:49,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1072 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 910 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 400882 ImplicationChecksByTransitivity, 42.8s TimeCoverageRelationStatistics Valid=165156, Invalid=665676, Unknown=0, NotChecked=0, Total=830832 [2023-02-15 23:01:49,457 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10167 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 22513 mSolverCounterSat, 2580 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10167 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 25093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2580 IncrementalHoareTripleChecker+Valid, 22513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2023-02-15 23:01:49,457 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10167 Valid, 38 Invalid, 25093 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2580 Valid, 22513 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2023-02-15 23:01:49,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2023-02-15 23:01:49,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 424. [2023-02-15 23:01:49,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 422 states have (on average 1.1090047393364928) internal successors, (468), 423 states have internal predecessors, (468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:01:49,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 468 transitions. [2023-02-15 23:01:49,836 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 468 transitions. Word has length 126 [2023-02-15 23:01:49,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:01:49,836 INFO L495 AbstractCegarLoop]: Abstraction has 424 states and 468 transitions. [2023-02-15 23:01:49,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 136 states have (on average 2.75) internal successors, (374), 137 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:01:49,836 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 468 transitions. [2023-02-15 23:01:49,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2023-02-15 23:01:49,841 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:01:49,841 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 23, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2023-02-15 23:01:49,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2023-02-15 23:01:50,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:01:50,045 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:01:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:01:50,046 INFO L85 PathProgramCache]: Analyzing trace with hash 326639796, now seen corresponding path program 12 times [2023-02-15 23:01:50,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:01:50,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492325262] [2023-02-15 23:01:50,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:01:50,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:01:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:01:50,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:01:50,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:01:50,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492325262] [2023-02-15 23:01:50,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492325262] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:01:50,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057984999] [2023-02-15 23:01:50,520 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-02-15 23:01:50,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:01:50,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:01:50,537 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) [2023-02-15 23:01:50,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2023-02-15 23:01:50,585 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2023-02-15 23:01:50,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:01:50,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 52 conjunts are in the unsatisfiable core [2023-02-15 23:01:50,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:01:51,563 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:01:51,563 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:01:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1317 backedges. 0 proven. 1317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:01:52,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057984999] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:01:52,399 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:01:52,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 50, 29] total 106 [2023-02-15 23:01:52,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823602832] [2023-02-15 23:01:52,399 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:01:52,400 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2023-02-15 23:01:52,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:01:52,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2023-02-15 23:01:52,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2968, Invalid=8374, Unknown=0, NotChecked=0, Total=11342 [2023-02-15 23:01:52,408 INFO L87 Difference]: Start difference. First operand 424 states and 468 transitions. Second operand has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:02:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:02:29,537 INFO L93 Difference]: Finished difference Result 3576 states and 3659 transitions. [2023-02-15 23:02:29,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2023-02-15 23:02:29,538 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 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 130 [2023-02-15 23:02:29,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:02:29,542 INFO L225 Difference]: With dead ends: 3576 [2023-02-15 23:02:29,542 INFO L226 Difference]: Without dead ends: 3575 [2023-02-15 23:02:29,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 630 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164785 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=59782, Invalid=339010, Unknown=0, NotChecked=0, Total=398792 [2023-02-15 23:02:29,557 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 5287 mSDsluCounter, 3650 mSDsCounter, 0 mSdLazyCounter, 45257 mSolverCounterSat, 1044 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5287 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 46301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1044 IncrementalHoareTripleChecker+Valid, 45257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-02-15 23:02:29,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5287 Valid, 3863 Invalid, 46301 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1044 Valid, 45257 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-02-15 23:02:29,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2023-02-15 23:02:29,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 484. [2023-02-15 23:02:29,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 482 states have (on average 1.1514522821576763) internal successors, (555), 483 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:02:29,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 555 transitions. [2023-02-15 23:02:29,937 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 555 transitions. Word has length 130 [2023-02-15 23:02:29,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:02:29,937 INFO L495 AbstractCegarLoop]: Abstraction has 484 states and 555 transitions. [2023-02-15 23:02:29,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 106 states have (on average 3.641509433962264) internal successors, (386), 107 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:02:29,937 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 555 transitions. [2023-02-15 23:02:29,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2023-02-15 23:02:29,938 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:02:29,938 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 16, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2023-02-15 23:02:29,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2023-02-15 23:02:30,145 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,SelfDestructingSolverStorable27 [2023-02-15 23:02:30,145 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:02:30,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:02:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1421333913, now seen corresponding path program 13 times [2023-02-15 23:02:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:02:30,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265698255] [2023-02-15 23:02:30,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:02:30,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:02:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:02:31,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:02:31,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:02:31,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265698255] [2023-02-15 23:02:31,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265698255] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:02:31,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422461059] [2023-02-15 23:02:31,136 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-02-15 23:02:31,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:02:31,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:02:31,138 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) [2023-02-15 23:02:31,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2023-02-15 23:02:31,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:02:31,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 43 conjunts are in the unsatisfiable core [2023-02-15 23:02:31,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:02:32,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:02:32,135 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:02:33,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1040 backedges. 0 proven. 1040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:02:33,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422461059] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:02:33,568 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:02:33,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 41, 41] total 128 [2023-02-15 23:02:33,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827754180] [2023-02-15 23:02:33,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:02:33,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 129 states [2023-02-15 23:02:33,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:02:33,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 129 interpolants. [2023-02-15 23:02:33,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2889, Invalid=13623, Unknown=0, NotChecked=0, Total=16512 [2023-02-15 23:02:33,573 INFO L87 Difference]: Start difference. First operand 484 states and 555 transitions. Second operand has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:00,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:03:00,874 INFO L93 Difference]: Finished difference Result 1979 states and 2081 transitions. [2023-02-15 23:03:00,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 444 states. [2023-02-15 23:03:00,874 INFO L78 Accepts]: Start accepts. Automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 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 140 [2023-02-15 23:03:00,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:03:00,891 INFO L225 Difference]: With dead ends: 1979 [2023-02-15 23:03:00,894 INFO L226 Difference]: Without dead ends: 1978 [2023-02-15 23:03:00,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 738 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134886 ImplicationChecksByTransitivity, 23.0s TimeCoverageRelationStatistics Valid=80398, Invalid=210662, Unknown=0, NotChecked=0, Total=291060 [2023-02-15 23:03:00,924 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 3341 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 3680 mSolverCounterSat, 1174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3341 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 4854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 3680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 23:03:00,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3341 Valid, 194 Invalid, 4854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1174 Valid, 3680 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 23:03:00,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1978 states. [2023-02-15 23:03:01,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1978 to 508. [2023-02-15 23:03:01,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 506 states have (on average 1.1442687747035574) internal successors, (579), 507 states have internal predecessors, (579), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:01,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 579 transitions. [2023-02-15 23:03:01,693 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 579 transitions. Word has length 140 [2023-02-15 23:03:01,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:03:01,693 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 579 transitions. [2023-02-15 23:03:01,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 129 states, 128 states have (on average 3.25) internal successors, (416), 129 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 579 transitions. [2023-02-15 23:03:01,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-02-15 23:03:01,694 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:03:01,695 INFO L195 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 24, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2023-02-15 23:03:01,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2023-02-15 23:03:01,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2023-02-15 23:03:01,899 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:03:01,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:03:01,899 INFO L85 PathProgramCache]: Analyzing trace with hash 644268994, now seen corresponding path program 14 times [2023-02-15 23:03:01,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:03:01,899 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866512981] [2023-02-15 23:03:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:03:01,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:03:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:03:02,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:02,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:03:02,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866512981] [2023-02-15 23:03:02,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866512981] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:03:02,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693247024] [2023-02-15 23:03:02,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 23:03:02,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:03:02,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:03:02,613 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 23:03:02,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2023-02-15 23:03:02,665 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 23:03:02,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:03:02,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 32 conjunts are in the unsatisfiable core [2023-02-15 23:03:02,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:03:03,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:03,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:03:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1470 backedges. 0 proven. 1470 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:03,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693247024] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:03:03,863 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:03:03,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 30, 30] total 112 [2023-02-15 23:03:03,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685277860] [2023-02-15 23:03:03,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:03:03,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 113 states [2023-02-15 23:03:03,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:03:03,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 113 interpolants. [2023-02-15 23:03:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2992, Invalid=9664, Unknown=0, NotChecked=0, Total=12656 [2023-02-15 23:03:03,867 INFO L87 Difference]: Start difference. First operand 508 states and 579 transitions. Second operand has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 23:03:16,969 INFO L93 Difference]: Finished difference Result 1705 states and 1769 transitions. [2023-02-15 23:03:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 347 states. [2023-02-15 23:03:16,969 INFO L78 Accepts]: Start accepts. Automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 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 141 [2023-02-15 23:03:16,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 23:03:16,971 INFO L225 Difference]: With dead ends: 1705 [2023-02-15 23:03:16,971 INFO L226 Difference]: Without dead ends: 1704 [2023-02-15 23:03:16,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 405 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68495 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=38422, Invalid=126820, Unknown=0, NotChecked=0, Total=165242 [2023-02-15 23:03:16,979 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 4118 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 971 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4118 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 971 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-02-15 23:03:16,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4118 Valid, 86 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [971 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-02-15 23:03:16,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2023-02-15 23:03:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 543. [2023-02-15 23:03:17,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 541 states have (on average 1.1423290203327172) internal successors, (618), 542 states have internal predecessors, (618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:17,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 618 transitions. [2023-02-15 23:03:17,736 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 618 transitions. Word has length 141 [2023-02-15 23:03:17,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 23:03:17,737 INFO L495 AbstractCegarLoop]: Abstraction has 543 states and 618 transitions. [2023-02-15 23:03:17,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 113 states, 112 states have (on average 3.7410714285714284) internal successors, (419), 113 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 23:03:17,737 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 618 transitions. [2023-02-15 23:03:17,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2023-02-15 23:03:17,741 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 23:03:17,741 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 9, 9, 9, 9, 9, 8, 1, 1, 1, 1] [2023-02-15 23:03:17,745 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2023-02-15 23:03:17,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:03:17,945 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2023-02-15 23:03:17,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 23:03:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash 214853537, now seen corresponding path program 15 times [2023-02-15 23:03:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 23:03:17,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111397085] [2023-02-15 23:03:17,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 23:03:17,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 23:03:17,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 23:03:18,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:18,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 23:03:18,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111397085] [2023-02-15 23:03:18,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111397085] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 23:03:18,636 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497847738] [2023-02-15 23:03:18,636 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 23:03:18,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 23:03:18,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 23:03:18,637 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 23:03:18,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2023-02-15 23:03:18,716 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2023-02-15 23:03:18,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 23:03:18,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 37 conjunts are in the unsatisfiable core [2023-02-15 23:03:18,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 23:03:19,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:19,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 23:03:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 0 proven. 1049 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 23:03:20,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497847738] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 23:03:20,478 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 23:03:20,478 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 35, 35] total 120 [2023-02-15 23:03:20,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743008397] [2023-02-15 23:03:20,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 23:03:20,479 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 121 states [2023-02-15 23:03:20,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 23:03:20,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 121 interpolants. [2023-02-15 23:03:20,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2853, Invalid=11667, Unknown=0, NotChecked=0, Total=14520 [2023-02-15 23:03:20,482 INFO L87 Difference]: Start difference. First operand 543 states and 618 transitions. Second operand has 121 states, 120 states have (on average 3.5166666666666666) internal successors, (422), 121 states have internal predecessors, (422), 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)