./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/jain_5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 574ddb4e Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/jain_5-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 51f18e80b5b0f6da04af12e6407c1afb08dc9b5e98545aeafa4f330f4ac3434e --- Real Ultimate output --- This is Ultimate 0.2.2-?-574ddb4 [2023-02-17 05:43:17,717 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-17 05:43:17,718 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-17 05:43:17,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-17 05:43:17,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-17 05:43:17,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-17 05:43:17,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-17 05:43:17,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-17 05:43:17,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-17 05:43:17,762 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-17 05:43:17,763 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-17 05:43:17,764 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-17 05:43:17,765 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-17 05:43:17,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-17 05:43:17,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-17 05:43:17,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-17 05:43:17,771 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-17 05:43:17,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-17 05:43:17,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-17 05:43:17,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-17 05:43:17,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-17 05:43:17,778 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-17 05:43:17,779 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-17 05:43:17,780 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-17 05:43:17,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-17 05:43:17,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-17 05:43:17,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-17 05:43:17,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-17 05:43:17,786 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-17 05:43:17,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-17 05:43:17,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-17 05:43:17,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-17 05:43:17,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-17 05:43:17,789 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-17 05:43:17,790 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-17 05:43:17,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-17 05:43:17,791 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-17 05:43:17,791 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-17 05:43:17,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-17 05:43:17,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-17 05:43:17,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-17 05:43:17,794 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-17 05:43:17,814 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-17 05:43:17,816 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-17 05:43:17,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-17 05:43:17,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-17 05:43:17,817 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-17 05:43:17,817 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-17 05:43:17,817 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-17 05:43:17,818 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-17 05:43:17,818 INFO L138 SettingsManager]: * Use SBE=true [2023-02-17 05:43:17,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-17 05:43:17,818 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-17 05:43:17,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-17 05:43:17,820 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-17 05:43:17,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-17 05:43:17,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-17 05:43:17,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-17 05:43:17,820 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-17 05:43:17,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 05:43:17,820 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-17 05:43:17,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-17 05:43:17,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-17 05:43:17,821 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-17 05:43:17,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-17 05:43:17,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-17 05:43:17,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-17 05:43:17,822 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-17 05:43:17,822 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-17 05:43:17,822 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-17 05:43:17,822 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 51f18e80b5b0f6da04af12e6407c1afb08dc9b5e98545aeafa4f330f4ac3434e [2023-02-17 05:43:18,050 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-17 05:43:18,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-17 05:43:18,067 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-17 05:43:18,068 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-17 05:43:18,068 INFO L275 PluginConnector]: CDTParser initialized [2023-02-17 05:43:18,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/jain_5-2.c [2023-02-17 05:43:19,025 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-17 05:43:19,193 INFO L351 CDTParser]: Found 1 translation units. [2023-02-17 05:43:19,194 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-2.c [2023-02-17 05:43:19,198 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce2021c99/d669de2ff3744298a36ec1c28bb646a4/FLAG2a26454ad [2023-02-17 05:43:19,217 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce2021c99/d669de2ff3744298a36ec1c28bb646a4 [2023-02-17 05:43:19,219 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-17 05:43:19,220 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-17 05:43:19,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-17 05:43:19,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-17 05:43:19,225 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-17 05:43:19,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@235e8f55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19, skipping insertion in model container [2023-02-17 05:43:19,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-17 05:43:19,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-17 05:43:19,398 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-2.c[665,678] [2023-02-17 05:43:19,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 05:43:19,415 INFO L203 MainTranslator]: Completed pre-run [2023-02-17 05:43:19,424 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/jain_5-2.c[665,678] [2023-02-17 05:43:19,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-17 05:43:19,435 INFO L208 MainTranslator]: Completed translation [2023-02-17 05:43:19,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19 WrapperNode [2023-02-17 05:43:19,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-17 05:43:19,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-17 05:43:19,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-17 05:43:19,436 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-17 05:43:19,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,445 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,455 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2023-02-17 05:43:19,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-17 05:43:19,456 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-17 05:43:19,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-17 05:43:19,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-17 05:43:19,461 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,470 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,471 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,472 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-17 05:43:19,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-17 05:43:19,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-17 05:43:19,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-17 05:43:19,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (1/1) ... [2023-02-17 05:43:19,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-17 05:43:19,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:43:19,499 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) [2023-02-17 05:43:19,505 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 [2023-02-17 05:43:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-17 05:43:19,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-17 05:43:19,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-17 05:43:19,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-17 05:43:19,565 INFO L235 CfgBuilder]: Building ICFG [2023-02-17 05:43:19,566 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-17 05:43:19,626 INFO L276 CfgBuilder]: Performing block encoding [2023-02-17 05:43:19,630 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-17 05:43:19,630 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2023-02-17 05:43:19,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 05:43:19 BoogieIcfgContainer [2023-02-17 05:43:19,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-17 05:43:19,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-17 05:43:19,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-17 05:43:19,635 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-17 05:43:19,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.02 05:43:19" (1/3) ... [2023-02-17 05:43:19,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 05:43:19, skipping insertion in model container [2023-02-17 05:43:19,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.02 05:43:19" (2/3) ... [2023-02-17 05:43:19,636 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f31cf00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.02 05:43:19, skipping insertion in model container [2023-02-17 05:43:19,636 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.02 05:43:19" (3/3) ... [2023-02-17 05:43:19,637 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5-2.c [2023-02-17 05:43:19,648 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-17 05:43:19,648 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-02-17 05:43:19,689 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-17 05:43:19,695 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;@12dd1ef4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-17 05:43:19,696 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-02-17 05:43:19,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-02-17 05:43:19,702 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:43:19,703 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-02-17 05:43:19,703 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:43:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:43:19,707 INFO L85 PathProgramCache]: Analyzing trace with hash 28699754, now seen corresponding path program 1 times [2023-02-17 05:43:19,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:43:19,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897399520] [2023-02-17 05:43:19,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:43:19,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:43:19,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:43:19,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:19,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:43:19,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897399520] [2023-02-17 05:43:19,974 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897399520] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-17 05:43:19,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-17 05:43:19,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-17 05:43:19,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512066878] [2023-02-17 05:43:19,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-17 05:43:19,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-17 05:43:19,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:43:20,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-17 05:43:20,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 05:43:20,004 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-02-17 05:43:20,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:43:20,048 INFO L93 Difference]: Finished difference Result 18 states and 26 transitions. [2023-02-17 05:43:20,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-17 05:43:20,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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 [2023-02-17 05:43:20,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:43:20,057 INFO L225 Difference]: With dead ends: 18 [2023-02-17 05:43:20,057 INFO L226 Difference]: Without dead ends: 9 [2023-02-17 05:43:20,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-17 05:43:20,061 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 05:43:20,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 05:43:20,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2023-02-17 05:43:20,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2023-02-17 05:43:20,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 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) [2023-02-17 05:43:20,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-02-17 05:43:20,081 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2023-02-17 05:43:20,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:43:20,081 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2023-02-17 05:43:20,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 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) [2023-02-17 05:43:20,082 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-02-17 05:43:20,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-17 05:43:20,082 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:43:20,082 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-02-17 05:43:20,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-17 05:43:20,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:43:20,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:43:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash 300686882, now seen corresponding path program 1 times [2023-02-17 05:43:20,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:43:20,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877187868] [2023-02-17 05:43:20,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:43:20,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:43:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:43:20,179 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:20,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:43:20,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877187868] [2023-02-17 05:43:20,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877187868] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:43:20,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269218985] [2023-02-17 05:43:20,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:43:20,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:43:20,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:43:20,197 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) [2023-02-17 05:43:20,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-17 05:43:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:43:20,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 16 conjunts are in the unsatisfiable core [2023-02-17 05:43:20,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:43:20,354 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:20,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:43:20,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:20,382 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269218985] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:43:20,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:43:20,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2023-02-17 05:43:20,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159601619] [2023-02-17 05:43:20,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:43:20,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-17 05:43:20,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:43:20,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-17 05:43:20,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-02-17 05:43:20,385 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:20,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:43:20,439 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-02-17 05:43:20,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-17 05:43:20,440 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-02-17 05:43:20,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:43:20,441 INFO L225 Difference]: With dead ends: 22 [2023-02-17 05:43:20,441 INFO L226 Difference]: Without dead ends: 20 [2023-02-17 05:43:20,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2023-02-17 05:43:20,442 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-17 05:43:20,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 25 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-17 05:43:20,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2023-02-17 05:43:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 18. [2023-02-17 05:43:20,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:20,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2023-02-17 05:43:20,450 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2023-02-17 05:43:20,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:43:20,451 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2023-02-17 05:43:20,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:20,451 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2023-02-17 05:43:20,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-17 05:43:20,452 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:43:20,452 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2023-02-17 05:43:20,457 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-17 05:43:20,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:43:20,657 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:43:20,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:43:20,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1156434326, now seen corresponding path program 2 times [2023-02-17 05:43:20,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:43:20,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092353108] [2023-02-17 05:43:20,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:43:20,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:43:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:43:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:20,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:43:20,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092353108] [2023-02-17 05:43:20,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092353108] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:43:20,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946104669] [2023-02-17 05:43:20,876 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-17 05:43:20,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:43:20,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:43:20,895 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) [2023-02-17 05:43:20,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-17 05:43:20,942 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-17 05:43:20,942 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:43:20,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-17 05:43:20,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:43:21,058 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:21,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:43:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:21,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946104669] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:43:21,169 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:43:21,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2023-02-17 05:43:21,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380566205] [2023-02-17 05:43:21,170 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:43:21,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-17 05:43:21,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:43:21,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-17 05:43:21,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2023-02-17 05:43:21,171 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:22,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:43:22,188 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2023-02-17 05:43:22,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-02-17 05:43:22,189 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2023-02-17 05:43:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:43:22,189 INFO L225 Difference]: With dead ends: 40 [2023-02-17 05:43:22,189 INFO L226 Difference]: Without dead ends: 38 [2023-02-17 05:43:22,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=177, Invalid=525, Unknown=0, NotChecked=0, Total=702 [2023-02-17 05:43:22,191 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 23 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-17 05:43:22,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 63 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-17 05:43:22,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-02-17 05:43:22,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2023-02-17 05:43:22,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 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) [2023-02-17 05:43:22,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2023-02-17 05:43:22,199 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 17 [2023-02-17 05:43:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:43:22,199 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2023-02-17 05:43:22,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 18 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2023-02-17 05:43:22,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-02-17 05:43:22,200 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:43:22,200 INFO L195 NwaCegarLoop]: trace histogram [11, 10, 10, 1, 1, 1, 1] [2023-02-17 05:43:22,209 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-02-17 05:43:22,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-02-17 05:43:22,405 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:43:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:43:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1353352554, now seen corresponding path program 3 times [2023-02-17 05:43:22,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:43:22,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716971481] [2023-02-17 05:43:22,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:43:22,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:43:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:43:22,755 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:22,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:43:22,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716971481] [2023-02-17 05:43:22,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716971481] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:43:22,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357710071] [2023-02-17 05:43:22,760 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-17 05:43:22,762 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:43:22,762 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:43:22,763 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) [2023-02-17 05:43:22,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-17 05:43:33,240 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-02-17 05:43:33,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:43:33,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 57 conjunts are in the unsatisfiable core [2023-02-17 05:43:33,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:43:33,566 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:33,567 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-17 05:43:40,456 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:43:40,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357710071] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-17 05:43:40,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-17 05:43:40,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15, 15] total 38 [2023-02-17 05:43:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403540091] [2023-02-17 05:43:40,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-17 05:43:40,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-02-17 05:43:40,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-17 05:43:40,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-02-17 05:43:40,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=264, Invalid=1142, Unknown=0, NotChecked=0, Total=1406 [2023-02-17 05:43:40,458 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 38 states, 38 states have (on average 2.6052631578947367) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:43:42,673 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 4) |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (.cse3 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 2) |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (.cse4 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296))) (.cse1 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 8) |c_ULTIMATE.start_main_~x~0#1| 112) 4294967296))) (.cse7 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 5) |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296))) (.cse6 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 7) |c_ULTIMATE.start_main_~x~0#1| 84) 4294967296))) (.cse0 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 9) |c_ULTIMATE.start_main_~x~0#1| 144) 4294967296))) (.cse8 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 3) |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (.cse5 (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (or .cse0 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 11) |c_ULTIMATE.start_main_~x~0#1| 220) 4294967296)))) (or .cse1 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 10) |c_ULTIMATE.start_main_~x~0#1| 180) 4294967296)))) (or (not .cse2) .cse3) (or .cse2 (not .cse4)) (< 0 11) (not .cse3) (not .cse5) (or (not .cse6) .cse7) (or .cse4 (not .cse1)) (or .cse8 (not .cse7)) (or .cse6 (not .cse0)) (or (not .cse8) .cse5))) is different from false [2023-02-17 05:43:44,746 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 8) |c_ULTIMATE.start_main_~x~0#1| 112) 4294967296))) (.cse0 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 2) |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (.cse3 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 5) |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296))) (.cse6 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 4) |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (.cse5 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296))) (.cse2 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 7) |c_ULTIMATE.start_main_~x~0#1| 84) 4294967296))) (.cse7 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 3) |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (.cse1 (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (and (not .cse0) (not .cse1) (or (not .cse2) .cse3) (or .cse4 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 10) |c_ULTIMATE.start_main_~x~0#1| 180) 4294967296)))) (or .cse5 (not .cse4)) (or (not .cse6) .cse0) (or .cse7 (not .cse3)) (or .cse6 (not .cse5)) (or .cse2 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 9) |c_ULTIMATE.start_main_~x~0#1| 144) 4294967296)))) (or (not .cse7) .cse1))) is different from false [2023-02-17 05:43:46,755 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse5 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 2) |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (.cse2 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 5) |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296))) (.cse6 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 4) |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (.cse3 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296))) (.cse1 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 7) |c_ULTIMATE.start_main_~x~0#1| 84) 4294967296))) (.cse7 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 3) |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (.cse0 (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296))) (.cse4 (= 0 |c_ULTIMATE.start___VERIFIER_assert_~cond#1|))) (and (not .cse0) (or (not .cse1) .cse2) (or .cse3 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 8) |c_ULTIMATE.start_main_~x~0#1| 112) 4294967296)))) (or .cse4 (not .cse5)) (or (not .cse6) .cse5) (or .cse7 (not .cse2)) (or .cse6 (not .cse3)) (or .cse1 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 9) |c_ULTIMATE.start_main_~x~0#1| 144) 4294967296)))) (or (not .cse7) .cse0) (not .cse4))) is different from false [2023-02-17 05:43:48,764 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 2) |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (.cse3 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 5) |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296))) (.cse5 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 4) |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (.cse4 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296))) (.cse2 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 7) |c_ULTIMATE.start_main_~x~0#1| 84) 4294967296))) (.cse6 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 3) |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (.cse1 (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (and (not .cse0) (not .cse1) (or (not .cse2) .cse3) (or .cse4 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 8) |c_ULTIMATE.start_main_~x~0#1| 112) 4294967296)))) (or (not .cse5) .cse0) (or .cse6 (not .cse3)) (or .cse5 (not .cse4)) (or .cse2 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 9) |c_ULTIMATE.start_main_~x~0#1| 144) 4294967296)))) (or (not .cse6) .cse1))) is different from false [2023-02-17 05:44:11,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:13,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:15,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:33,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:35,971 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:37,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:39,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:42,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:43,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:45,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:44:47,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:01,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:03,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:05,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:06,763 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:08,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:10,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:12,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:14,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:16,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:18,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:20,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:22,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:24,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:42,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:44,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:46,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:48,872 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:45:50,885 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 2) |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296))) (.cse2 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 4) |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296))) (.cse3 (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 3) |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296))) (.cse1 (= 30 (mod (+ |c_ULTIMATE.start_main_~y~0#1| |c_ULTIMATE.start_main_~x~0#1|) 4294967296)))) (and (not .cse0) (not .cse1) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| 1) (or (not .cse2) .cse0) (or .cse3 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 5) |c_ULTIMATE.start_main_~x~0#1| 40) 4294967296)))) (or .cse2 (not (= 30 (mod (+ (* |c_ULTIMATE.start_main_~y~0#1| 6) |c_ULTIMATE.start_main_~x~0#1| 60) 4294967296)))) (< 0 11) (or (not .cse3) .cse1))) is different from false [2023-02-17 05:46:00,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:02,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:04,109 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:06,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:07,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:17,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:19,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:21,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:23,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:33,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:35,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:37,149 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:39,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:41,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:43,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:45,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:47,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:49,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:46:58,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:01,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:03,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:05,487 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:07,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:09,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:15,929 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:17,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:19,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-17 05:47:21,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-17 05:47:21,833 INFO L93 Difference]: Finished difference Result 73 states and 83 transitions. [2023-02-17 05:47:21,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2023-02-17 05:47:21,835 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.6052631578947367) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 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 [2023-02-17 05:47:21,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-17 05:47:21,835 INFO L225 Difference]: With dead ends: 73 [2023-02-17 05:47:21,835 INFO L226 Difference]: Without dead ends: 71 [2023-02-17 05:47:21,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 45 SyntacticMatches, 3 SemanticMatches, 59 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 690 ImplicationChecksByTransitivity, 114.6s TimeCoverageRelationStatistics Valid=644, Invalid=2427, Unknown=29, NotChecked=560, Total=3660 [2023-02-17 05:47:21,837 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 74 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 25 mSolverCounterUnsat, 48 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 48 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 113.8s IncrementalHoareTripleChecker+Time [2023-02-17 05:47:21,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 204 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 354 Invalid, 48 Unknown, 7 Unchecked, 113.8s Time] [2023-02-17 05:47:21,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2023-02-17 05:47:21,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2023-02-17 05:47:21,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 68 states have (on average 1.0147058823529411) internal successors, (69), 68 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:47:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2023-02-17 05:47:21,858 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 35 [2023-02-17 05:47:21,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-17 05:47:21,859 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2023-02-17 05:47:21,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.6052631578947367) internal successors, (99), 38 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-17 05:47:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2023-02-17 05:47:21,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-02-17 05:47:21,860 INFO L187 NwaCegarLoop]: Found error trace [2023-02-17 05:47:21,860 INFO L195 NwaCegarLoop]: trace histogram [22, 21, 21, 1, 1, 1, 1] [2023-02-17 05:47:21,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-02-17 05:47:22,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:47:22,069 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-02-17 05:47:22,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-17 05:47:22,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1882756062, now seen corresponding path program 4 times [2023-02-17 05:47:22,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-17 05:47:22,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411732965] [2023-02-17 05:47:22,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-17 05:47:22,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-17 05:47:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-17 05:47:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:47:22,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-17 05:47:22,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411732965] [2023-02-17 05:47:22,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411732965] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-17 05:47:22,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39440082] [2023-02-17 05:47:22,864 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-02-17 05:47:22,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-17 05:47:22,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-17 05:47:22,871 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) [2023-02-17 05:47:22,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-17 05:47:22,935 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-02-17 05:47:22,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-17 05:47:22,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 101 conjunts are in the unsatisfiable core [2023-02-17 05:47:22,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-17 05:47:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-17 05:47:23,797 INFO L328 TraceCheckSpWp]: Computing backward predicates...