./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/forester-heap/dll-rb-cnstr_1-1.i -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 2f8161fc7f730bddeac54a8f174c52e5ef9cd819e9497e3a4087e68b96d46105 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 19:33:32,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 19:33:32,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 19:33:32,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 19:33:32,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 19:33:32,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 19:33:32,110 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 19:33:32,113 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 19:33:32,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 19:33:32,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 19:33:32,124 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 19:33:32,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 19:33:32,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 19:33:32,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 19:33:32,131 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 19:33:32,132 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 19:33:32,133 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 19:33:32,135 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 19:33:32,136 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 19:33:32,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 19:33:32,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 19:33:32,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 19:33:32,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 19:33:32,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 19:33:32,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 19:33:32,149 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 19:33:32,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 19:33:32,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 19:33:32,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 19:33:32,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 19:33:32,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 19:33:32,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 19:33:32,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 19:33:32,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 19:33:32,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 19:33:32,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 19:33:32,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 19:33:32,158 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 19:33:32,158 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 19:33:32,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 19:33:32,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 19:33:32,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-02-15 19:33:32,204 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 19:33:32,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 19:33:32,205 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 19:33:32,205 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 19:33:32,206 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 19:33:32,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 19:33:32,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 19:33:32,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 19:33:32,207 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 19:33:32,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 19:33:32,208 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 19:33:32,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 19:33:32,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 19:33:32,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 19:33:32,210 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 19:33:32,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 19:33:32,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 19:33:32,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 19:33:32,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 19:33:32,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:33:32,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 19:33:32,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 19:33:32,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 19:33:32,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 19:33:32,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 19:33:32,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 19:33:32,212 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 19:33:32,212 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 19:33:32,212 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 19:33:32,213 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 19:33:32,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f8161fc7f730bddeac54a8f174c52e5ef9cd819e9497e3a4087e68b96d46105 [2023-02-15 19:33:32,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 19:33:32,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 19:33:32,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 19:33:32,520 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 19:33:32,520 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 19:33:32,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2023-02-15 19:33:33,855 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 19:33:34,106 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 19:33:34,107 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/forester-heap/dll-rb-cnstr_1-1.i [2023-02-15 19:33:34,119 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ee8b8f0a/bd9c74be8e9b4e31af220aced3da6ce7/FLAG2a4097bf2 [2023-02-15 19:33:34,132 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ee8b8f0a/bd9c74be8e9b4e31af220aced3da6ce7 [2023-02-15 19:33:34,134 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 19:33:34,136 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 19:33:34,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 19:33:34,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 19:33:34,144 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 19:33:34,145 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20293747 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34, skipping insertion in model container [2023-02-15 19:33:34,146 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,151 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 19:33:34,196 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 19:33:34,465 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/forester-heap/dll-rb-cnstr_1-1.i[22569,22582] [2023-02-15 19:33:34,473 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/forester-heap/dll-rb-cnstr_1-1.i[22645,22658] [2023-02-15 19:33:34,475 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/forester-heap/dll-rb-cnstr_1-1.i[22715,22728] [2023-02-15 19:33:34,475 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/forester-heap/dll-rb-cnstr_1-1.i[22822,22835] [2023-02-15 19:33:34,477 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/forester-heap/dll-rb-cnstr_1-1.i[22894,22907] [2023-02-15 19:33:34,479 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/forester-heap/dll-rb-cnstr_1-1.i[23045,23058] [2023-02-15 19:33:34,479 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/forester-heap/dll-rb-cnstr_1-1.i[23119,23132] [2023-02-15 19:33:34,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:33:34,497 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 19:33:34,548 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/forester-heap/dll-rb-cnstr_1-1.i[22569,22582] [2023-02-15 19:33:34,549 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/forester-heap/dll-rb-cnstr_1-1.i[22645,22658] [2023-02-15 19:33:34,550 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/forester-heap/dll-rb-cnstr_1-1.i[22715,22728] [2023-02-15 19:33:34,551 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/forester-heap/dll-rb-cnstr_1-1.i[22822,22835] [2023-02-15 19:33:34,554 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/forester-heap/dll-rb-cnstr_1-1.i[22894,22907] [2023-02-15 19:33:34,556 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/forester-heap/dll-rb-cnstr_1-1.i[23045,23058] [2023-02-15 19:33:34,558 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/forester-heap/dll-rb-cnstr_1-1.i[23119,23132] [2023-02-15 19:33:34,561 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 19:33:34,587 INFO L208 MainTranslator]: Completed translation [2023-02-15 19:33:34,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34 WrapperNode [2023-02-15 19:33:34,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 19:33:34,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 19:33:34,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 19:33:34,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 19:33:34,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,614 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,632 INFO L138 Inliner]: procedures = 119, calls = 39, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 150 [2023-02-15 19:33:34,633 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 19:33:34,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 19:33:34,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 19:33:34,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 19:33:34,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,647 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,653 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,659 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,663 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 19:33:34,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 19:33:34,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 19:33:34,664 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 19:33:34,665 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (1/1) ... [2023-02-15 19:33:34,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 19:33:34,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:33:34,715 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 19:33:34,723 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 19:33:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-02-15 19:33:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-02-15 19:33:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-02-15 19:33:34,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 19:33:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-02-15 19:33:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-02-15 19:33:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-02-15 19:33:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 19:33:34,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 19:33:34,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 19:33:34,841 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 19:33:34,843 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 19:33:35,120 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 19:33:35,148 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 19:33:35,148 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2023-02-15 19:33:35,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:33:35 BoogieIcfgContainer [2023-02-15 19:33:35,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 19:33:35,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 19:33:35,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 19:33:35,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 19:33:35,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 07:33:34" (1/3) ... [2023-02-15 19:33:35,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2390f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:33:35, skipping insertion in model container [2023-02-15 19:33:35,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 07:33:34" (2/3) ... [2023-02-15 19:33:35,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2390f377 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 07:33:35, skipping insertion in model container [2023-02-15 19:33:35,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 07:33:35" (3/3) ... [2023-02-15 19:33:35,158 INFO L112 eAbstractionObserver]: Analyzing ICFG dll-rb-cnstr_1-1.i [2023-02-15 19:33:35,174 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 19:33:35,175 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-02-15 19:33:35,216 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 19:33:35,222 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;@64fcad6a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 19:33:35,223 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-02-15 19:33:35,227 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 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 19:33:35,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-02-15 19:33:35,232 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:35,233 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-02-15 19:33:35,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:35,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:35,238 INFO L85 PathProgramCache]: Analyzing trace with hash 891600134, now seen corresponding path program 1 times [2023-02-15 19:33:35,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:35,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643334597] [2023-02-15 19:33:35,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:35,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:35,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:35,393 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 19:33:35,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:35,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643334597] [2023-02-15 19:33:35,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643334597] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:35,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:35,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 19:33:35,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684643878] [2023-02-15 19:33:35,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:35,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-02-15 19:33:35,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:35,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-02-15 19:33:35,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:33:35,448 INFO L87 Difference]: Start difference. First operand has 47 states, 39 states have (on average 1.9487179487179487) internal successors, (76), 46 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 19:33:35,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:35,476 INFO L93 Difference]: Finished difference Result 92 states and 150 transitions. [2023-02-15 19:33:35,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-02-15 19:33:35,478 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 19:33:35,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:35,487 INFO L225 Difference]: With dead ends: 92 [2023-02-15 19:33:35,487 INFO L226 Difference]: Without dead ends: 41 [2023-02-15 19:33:35,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-02-15 19:33:35,493 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:35,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:33:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2023-02-15 19:33:35,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-02-15 19:33:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 34 states have (on average 1.2941176470588236) internal successors, (44), 40 states have internal predecessors, (44), 0 states have call successors, (0), 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 19:33:35,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-02-15 19:33:35,528 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 6 [2023-02-15 19:33:35,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:35,528 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-02-15 19:33:35,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 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 19:33:35,529 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-02-15 19:33:35,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-02-15 19:33:35,529 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:35,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:35,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 19:33:35,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:35,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:35,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1806905862, now seen corresponding path program 1 times [2023-02-15 19:33:35,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:35,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071418805] [2023-02-15 19:33:35,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:35,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:35,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:35,711 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 19:33:35,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:35,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071418805] [2023-02-15 19:33:35,712 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071418805] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:35,712 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:35,712 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 19:33:35,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72149217] [2023-02-15 19:33:35,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:35,714 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 19:33:35,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:35,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 19:33:35,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:33:35,715 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:35,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:35,777 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2023-02-15 19:33:35,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 19:33:35,778 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-02-15 19:33:35,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:35,778 INFO L225 Difference]: With dead ends: 44 [2023-02-15 19:33:35,778 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 19:33:35,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:33:35,780 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 64 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:35,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 37 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 19:33:35,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 19:33:35,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 37. [2023-02-15 19:33:35,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.25) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-02-15 19:33:35,787 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 7 [2023-02-15 19:33:35,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:35,787 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-02-15 19:33:35,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:35,788 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-02-15 19:33:35,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-02-15 19:33:35,788 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:35,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:35,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 19:33:35,789 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:35,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:35,790 INFO L85 PathProgramCache]: Analyzing trace with hash 179566605, now seen corresponding path program 1 times [2023-02-15 19:33:35,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:35,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558613867] [2023-02-15 19:33:35,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:36,131 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 19:33:36,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:36,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558613867] [2023-02-15 19:33:36,135 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558613867] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:36,135 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:36,135 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 19:33:36,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979703956] [2023-02-15 19:33:36,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:36,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 19:33:36,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:36,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 19:33:36,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:33:36,139 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 4 states, 4 states have (on average 2.0) 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 19:33:36,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:36,262 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2023-02-15 19:33:36,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 19:33:36,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) 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 19:33:36,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:36,264 INFO L225 Difference]: With dead ends: 37 [2023-02-15 19:33:36,264 INFO L226 Difference]: Without dead ends: 35 [2023-02-15 19:33:36,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:33:36,265 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 12 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:36,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 67 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:33:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2023-02-15 19:33:36,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-02-15 19:33:36,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 31 states have (on average 1.2258064516129032) internal successors, (38), 34 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 19:33:36,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-02-15 19:33:36,275 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 8 [2023-02-15 19:33:36,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:36,276 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-02-15 19:33:36,276 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) 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 19:33:36,277 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-02-15 19:33:36,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-02-15 19:33:36,277 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:36,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:36,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 19:33:36,278 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:36,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:36,280 INFO L85 PathProgramCache]: Analyzing trace with hash 711412120, now seen corresponding path program 1 times [2023-02-15 19:33:36,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:36,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475255696] [2023-02-15 19:33:36,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:36,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:36,408 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 19:33:36,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:36,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475255696] [2023-02-15 19:33:36,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475255696] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:36,411 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:36,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:33:36,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447448192] [2023-02-15 19:33:36,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:36,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:33:36,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:36,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:33:36,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:33:36,416 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 19:33:36,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:36,573 INFO L93 Difference]: Finished difference Result 60 states and 66 transitions. [2023-02-15 19:33:36,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:33:36,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 19:33:36,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:36,574 INFO L225 Difference]: With dead ends: 60 [2023-02-15 19:33:36,574 INFO L226 Difference]: Without dead ends: 58 [2023-02-15 19:33:36,577 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:33:36,583 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 42 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:36,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 71 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:33:36,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2023-02-15 19:33:36,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 42. [2023-02-15 19:33:36,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 38 states have (on average 1.2105263157894737) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:36,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-02-15 19:33:36,596 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 10 [2023-02-15 19:33:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:36,596 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-02-15 19:33:36,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 19:33:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2023-02-15 19:33:36,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-02-15 19:33:36,598 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:36,598 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:36,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 19:33:36,599 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:36,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:36,600 INFO L85 PathProgramCache]: Analyzing trace with hash -2056579816, now seen corresponding path program 1 times [2023-02-15 19:33:36,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:36,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022242198] [2023-02-15 19:33:36,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:36,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:36,919 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 19:33:36,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:36,919 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022242198] [2023-02-15 19:33:36,919 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022242198] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:36,920 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:36,920 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 19:33:36,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496291437] [2023-02-15 19:33:36,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:36,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 19:33:36,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:36,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 19:33:36,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 19:33:36,926 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 19:33:37,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:37,003 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2023-02-15 19:33:37,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 19:33:37,004 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 19:33:37,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:37,006 INFO L225 Difference]: With dead ends: 42 [2023-02-15 19:33:37,006 INFO L226 Difference]: Without dead ends: 40 [2023-02-15 19:33:37,010 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:33:37,010 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 7 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:37,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:33:37,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-02-15 19:33:37,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2023-02-15 19:33:37,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 37 states have (on average 1.1891891891891893) internal successors, (44), 39 states have internal predecessors, (44), 0 states have call successors, (0), 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 19:33:37,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2023-02-15 19:33:37,018 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 11 [2023-02-15 19:33:37,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:37,019 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2023-02-15 19:33:37,019 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 19:33:37,019 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2023-02-15 19:33:37,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 19:33:37,020 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:37,020 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:37,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-02-15 19:33:37,020 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:37,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:37,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1285114177, now seen corresponding path program 1 times [2023-02-15 19:33:37,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:37,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708807118] [2023-02-15 19:33:37,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:37,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:37,147 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 19:33:37,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:37,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708807118] [2023-02-15 19:33:37,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708807118] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 19:33:37,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 19:33:37,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-02-15 19:33:37,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277190643] [2023-02-15 19:33:37,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 19:33:37,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 19:33:37,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:37,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 19:33:37,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 19:33:37,151 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 19:33:37,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:37,263 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2023-02-15 19:33:37,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-02-15 19:33:37,264 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 19:33:37,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:37,265 INFO L225 Difference]: With dead ends: 55 [2023-02-15 19:33:37,265 INFO L226 Difference]: Without dead ends: 43 [2023-02-15 19:33:37,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 19:33:37,266 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 12 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:37,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 68 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:33:37,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2023-02-15 19:33:37,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2023-02-15 19:33:37,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 41 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:37,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2023-02-15 19:33:37,274 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 14 [2023-02-15 19:33:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:37,275 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2023-02-15 19:33:37,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 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 19:33:37,275 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2023-02-15 19:33:37,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 19:33:37,276 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:37,276 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:37,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 19:33:37,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:37,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:37,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1621160418, now seen corresponding path program 1 times [2023-02-15 19:33:37,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:37,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254550476] [2023-02-15 19:33:37,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:37,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:37,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:37,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:37,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254550476] [2023-02-15 19:33:37,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254550476] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:33:37,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077199044] [2023-02-15 19:33:37,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:37,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:33:37,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:33:37,417 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 19:33:37,418 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 19:33:37,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:37,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 19:33:37,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:33:37,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:37,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:37,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2023-02-15 19:33:37,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:37,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:37,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2023-02-15 19:33:37,737 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-15 19:33:37,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-15 19:33:37,749 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:37,749 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:33:37,822 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:37,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077199044] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:33:37,823 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:33:37,823 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2023-02-15 19:33:37,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638618390] [2023-02-15 19:33:37,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:33:37,824 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-02-15 19:33:37,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:37,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-02-15 19:33:37,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-02-15 19:33:37,826 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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 19:33:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:37,965 INFO L93 Difference]: Finished difference Result 59 states and 64 transitions. [2023-02-15 19:33:37,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 19:33:37,966 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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) Word has length 17 [2023-02-15 19:33:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:37,967 INFO L225 Difference]: With dead ends: 59 [2023-02-15 19:33:37,967 INFO L226 Difference]: Without dead ends: 37 [2023-02-15 19:33:37,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-02-15 19:33:37,969 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 22 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:37,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 122 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 19:33:37,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2023-02-15 19:33:37,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2023-02-15 19:33:37,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 34 states have (on average 1.1764705882352942) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 19:33:37,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2023-02-15 19:33:37,981 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 17 [2023-02-15 19:33:37,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:37,983 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2023-02-15 19:33:37,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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 19:33:37,984 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2023-02-15 19:33:37,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-02-15 19:33:37,985 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:37,985 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:37,993 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 19:33:38,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:33:38,191 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:38,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1036168340, now seen corresponding path program 1 times [2023-02-15 19:33:38,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:38,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396718359] [2023-02-15 19:33:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:38,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:38,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:39,182 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:39,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:39,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396718359] [2023-02-15 19:33:39,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396718359] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:33:39,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192378368] [2023-02-15 19:33:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:39,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:33:39,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:33:39,189 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 19:33:39,212 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 19:33:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:39,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 48 conjunts are in the unsatisfiable core [2023-02-15 19:33:39,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:33:39,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-15 19:33:39,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-02-15 19:33:39,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:39,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 29 [2023-02-15 19:33:39,438 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2023-02-15 19:33:39,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2023-02-15 19:33:39,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:39,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:39,458 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:33:39,459 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2023-02-15 19:33:39,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2023-02-15 19:33:39,487 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-02-15 19:33:39,488 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2023-02-15 19:33:39,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:39,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:39,581 INFO L321 Elim1Store]: treesize reduction 137, result has 7.4 percent of original size [2023-02-15 19:33:39,581 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 37 treesize of output 38 [2023-02-15 19:33:39,595 INFO L321 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2023-02-15 19:33:39,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2023-02-15 19:33:39,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-02-15 19:33:39,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:39,659 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:33:39,696 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:39,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 34 [2023-02-15 19:33:39,702 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 51 [2023-02-15 19:33:39,710 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 22 [2023-02-15 19:33:39,861 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:39,862 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 136 treesize of output 113 [2023-02-15 19:33:39,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 231 treesize of output 171 [2023-02-15 19:33:39,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 124 [2023-02-15 19:33:41,028 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:33:41,032 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2023-02-15 19:33:41,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 52 treesize of output 1 [2023-02-15 19:33:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:41,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192378368] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 19:33:41,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 19:33:41,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-02-15 19:33:41,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787914547] [2023-02-15 19:33:41,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 19:33:41,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 19:33:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 19:33:41,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 19:33:41,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=116, Unknown=1, NotChecked=0, Total=156 [2023-02-15 19:33:41,035 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 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 19:33:41,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 19:33:41,314 INFO L93 Difference]: Finished difference Result 49 states and 53 transitions. [2023-02-15 19:33:41,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 19:33:41,315 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2023-02-15 19:33:41,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 19:33:41,315 INFO L225 Difference]: With dead ends: 49 [2023-02-15 19:33:41,315 INFO L226 Difference]: Without dead ends: 47 [2023-02-15 19:33:41,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 35 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=79, Invalid=192, Unknown=1, NotChecked=0, Total=272 [2023-02-15 19:33:41,316 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 112 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 19:33:41,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 86 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 19:33:41,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2023-02-15 19:33:41,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 35. [2023-02-15 19:33:41,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 34 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 19:33:41,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2023-02-15 19:33:41,326 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 21 [2023-02-15 19:33:41,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 19:33:41,326 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2023-02-15 19:33:41,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 0 states have call successors, (0), 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 19:33:41,327 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2023-02-15 19:33:41,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-02-15 19:33:41,327 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 19:33:41,327 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 19:33:41,340 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 19:33:41,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-02-15 19:33:41,540 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-02-15 19:33:41,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 19:33:41,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1438350182, now seen corresponding path program 1 times [2023-02-15 19:33:41,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 19:33:41,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515419734] [2023-02-15 19:33:41,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:41,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 19:33:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:42,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 19:33:42,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515419734] [2023-02-15 19:33:42,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515419734] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 19:33:42,820 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315433177] [2023-02-15 19:33:42,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 19:33:42,820 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 19:33:42,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 19:33:42,825 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 19:33:42,828 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 19:33:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 19:33:42,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 80 conjunts are in the unsatisfiable core [2023-02-15 19:33:42,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 19:33:42,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-02-15 19:33:43,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 27 [2023-02-15 19:33:43,027 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 35 [2023-02-15 19:33:43,044 INFO L321 Elim1Store]: treesize reduction 50, result has 9.1 percent of original size [2023-02-15 19:33:43,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 90 treesize of output 78 [2023-02-15 19:33:43,052 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-02-15 19:33:43,068 INFO L321 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-02-15 19:33:43,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-02-15 19:33:43,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:43,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:43,078 INFO L173 IndexEqualityManager]: detected equality via solver [2023-02-15 19:33:43,079 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 25 [2023-02-15 19:33:43,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:43,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:43,155 INFO L321 Elim1Store]: treesize reduction 59, result has 25.3 percent of original size [2023-02-15 19:33:43,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 112 treesize of output 104 [2023-02-15 19:33:43,164 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 48 [2023-02-15 19:33:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-02-15 19:33:43,216 INFO L321 Elim1Store]: treesize reduction 171, result has 23.7 percent of original size [2023-02-15 19:33:43,216 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 111 treesize of output 211 [2023-02-15 19:33:43,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 198 treesize of output 168 [2023-02-15 19:33:43,251 INFO L321 Elim1Store]: treesize reduction 8, result has 82.2 percent of original size [2023-02-15 19:33:43,252 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 46 [2023-02-15 19:33:43,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 15 [2023-02-15 19:33:43,569 INFO L321 Elim1Store]: treesize reduction 15, result has 6.3 percent of original size [2023-02-15 19:33:43,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 82 treesize of output 53 [2023-02-15 19:33:43,633 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-02-15 19:33:43,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 23 [2023-02-15 19:33:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 19:33:43,638 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 19:33:43,686 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:43,686 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 95 [2023-02-15 19:33:43,692 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:43,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 80 [2023-02-15 19:33:43,708 WARN L837 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_11 (Array Int Int)) (v_ArrVal_886 (Array Int Int)) (v_ArrVal_889 (Array Int Int)) (v_arrayElimArr_12 (Array Int Int)) (v_ArrVal_888 (Array Int Int)) (v_ArrVal_879 (Array Int Int)) (v_ArrVal_882 (Array Int Int))) (let ((.cse2 (select v_arrayElimArr_12 |c_ULTIMATE.start_main_~end~0#1.offset|))) (or (not (= 0 (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_12))) (let ((.cse3 (select (select (store .cse1 .cse2 v_ArrVal_888) |c_ULTIMATE.start_main_~end~0#1.base|) |c_ULTIMATE.start_main_~end~0#1.offset|))) (select (let ((.cse0 (store (store .cse1 .cse2 v_ArrVal_882) .cse3 v_ArrVal_879))) (select .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|))) (select (select (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~end~0#1.base| v_arrayElimArr_11) .cse2 v_ArrVal_889) .cse3 v_ArrVal_886) |c_ULTIMATE.start_main_~list~0#1.base|) |c_ULTIMATE.start_main_~list~0#1.offset|)))))) (not (= 0 (select |c_#valid| .cse2))) (not (= (select v_arrayElimArr_11 |c_ULTIMATE.start_main_~end~0#1.offset|) 0)) (= 0 .cse2)))) is different from false [2023-02-15 19:33:43,730 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:43,731 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 489 treesize of output 393 [2023-02-15 19:33:43,739 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:43,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 341 treesize of output 238 [2023-02-15 19:33:45,861 INFO L321 Elim1Store]: treesize reduction 1171, result has 38.4 percent of original size [2023-02-15 19:33:45,863 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 23 new quantified variables, introduced 153 case distinctions, treesize of input 90971 treesize of output 67122 [2023-02-15 19:33:47,361 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:33:47,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 2846282 treesize of output 2413849 [2023-02-15 19:35:28,872 WARN L233 SmtUtils]: Spent 1.69m on a formula simplification. DAG size of input: 6510 DAG size of output: 6169 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:35:37,545 WARN L233 SmtUtils]: Spent 8.62s on a formula simplification that was a NOOP. DAG size: 6159 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:35:37,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1979591 treesize of output 1884673 [2023-02-15 19:35:46,584 WARN L233 SmtUtils]: Spent 8.82s on a formula simplification that was a NOOP. DAG size: 6158 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:35:46,914 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:35:46,919 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 1872327 treesize of output 1767179 [2023-02-15 19:35:56,302 WARN L233 SmtUtils]: Spent 9.38s on a formula simplification that was a NOOP. DAG size: 6161 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:35:56,547 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1771454 treesize of output 1649600 [2023-02-15 19:36:05,185 WARN L233 SmtUtils]: Spent 8.63s on a formula simplification that was a NOOP. DAG size: 6133 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:05,534 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:36:05,542 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1657622 treesize of output 1595280 [2023-02-15 19:36:14,509 WARN L233 SmtUtils]: Spent 8.96s on a formula simplification that was a NOOP. DAG size: 6143 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:14,634 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1595238 treesize of output 1483214 [2023-02-15 19:36:23,116 WARN L233 SmtUtils]: Spent 8.48s on a formula simplification that was a NOOP. DAG size: 6142 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:23,291 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1476042 treesize of output 1446186 [2023-02-15 19:36:31,683 WARN L233 SmtUtils]: Spent 8.39s on a formula simplification that was a NOOP. DAG size: 6141 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:31,834 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 1443409 treesize of output 1375577 [2023-02-15 19:36:41,012 WARN L233 SmtUtils]: Spent 9.17s on a formula simplification that was a NOOP. DAG size: 6140 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:41,557 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:36:41,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 356937 treesize of output 346441 [2023-02-15 19:36:50,635 WARN L233 SmtUtils]: Spent 9.07s on a formula simplification that was a NOOP. DAG size: 6184 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:36:51,146 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:36:51,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 1375063 treesize of output 1255515 [2023-02-15 19:37:01,939 WARN L233 SmtUtils]: Spent 10.78s on a formula simplification that was a NOOP. DAG size: 6272 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:37:02,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:37:02,529 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 560025 treesize of output 555241 [2023-02-15 19:37:13,548 WARN L233 SmtUtils]: Spent 11.01s on a formula simplification that was a NOOP. DAG size: 6316 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-02-15 19:37:14,075 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-02-15 19:37:14,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 409391 treesize of output 408427 [2023-02-15 19:37:25,386 WARN L233 SmtUtils]: Spent 11.30s on a formula simplification that was a NOOP. DAG size: 6360 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)