./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fcb8e130 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/uthash-2.0.2/uthash_SAX_test5-1.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 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-fcb8e13 [2021-11-23 06:24:43,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 06:24:43,938 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 06:24:44,003 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 06:24:44,004 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 06:24:44,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 06:24:44,005 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 06:24:44,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 06:24:44,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 06:24:44,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 06:24:44,011 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 06:24:44,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 06:24:44,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 06:24:44,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 06:24:44,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 06:24:44,019 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 06:24:44,021 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 06:24:44,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 06:24:44,027 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 06:24:44,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 06:24:44,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 06:24:44,030 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 06:24:44,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 06:24:44,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 06:24:44,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 06:24:44,033 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 06:24:44,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 06:24:44,034 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 06:24:44,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 06:24:44,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 06:24:44,035 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 06:24:44,036 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 06:24:44,036 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 06:24:44,037 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 06:24:44,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 06:24:44,038 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 06:24:44,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 06:24:44,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 06:24:44,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 06:24:44,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 06:24:44,039 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 06:24:44,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 06:24:44,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 06:24:44,067 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 06:24:44,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 06:24:44,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 06:24:44,069 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 06:24:44,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 06:24:44,069 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 06:24:44,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 06:24:44,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 06:24:44,069 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 06:24:44,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 06:24:44,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 06:24:44,070 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 06:24:44,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 06:24:44,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 06:24:44,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 06:24:44,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 06:24:44,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 06:24:44,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 06:24:44,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 06:24:44,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 06:24:44,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 06:24:44,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a17e1f9edfd37607fb472869452b377d4af1281c9808dec0371b4f943952037 [2021-11-23 06:24:44,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 06:24:44,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 06:24:44,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 06:24:44,298 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 06:24:44,299 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 06:24:44,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2021-11-23 06:24:44,360 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dab43e0c/79ee6580645a453eae4327777e546b1f/FLAGc1bcbc64e [2021-11-23 06:24:44,804 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 06:24:44,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i [2021-11-23 06:24:44,837 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dab43e0c/79ee6580645a453eae4327777e546b1f/FLAGc1bcbc64e [2021-11-23 06:24:45,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3dab43e0c/79ee6580645a453eae4327777e546b1f [2021-11-23 06:24:45,328 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 06:24:45,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 06:24:45,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 06:24:45,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 06:24:45,333 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 06:24:45,333 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:45,335 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520c0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45, skipping insertion in model container [2021-11-23 06:24:45,335 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:45,339 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 06:24:45,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 06:24:45,671 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i[33021,33034] [2021-11-23 06:24:45,798 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i[49681,49694] [2021-11-23 06:24:45,804 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 06:24:45,816 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 06:24:45,848 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i[33021,33034] [2021-11-23 06:24:45,910 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test5-1.i[49681,49694] [2021-11-23 06:24:45,913 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 06:24:45,938 INFO L208 MainTranslator]: Completed translation [2021-11-23 06:24:45,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45 WrapperNode [2021-11-23 06:24:45,943 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 06:24:45,944 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 06:24:45,944 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 06:24:45,944 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 06:24:45,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:45,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,032 INFO L137 Inliner]: procedures = 177, calls = 388, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 1447 [2021-11-23 06:24:46,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 06:24:46,035 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 06:24:46,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 06:24:46,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 06:24:46,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,042 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,063 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,105 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 06:24:46,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 06:24:46,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 06:24:46,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 06:24:46,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (1/1) ... [2021-11-23 06:24:46,163 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 06:24:46,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:46,183 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) [2021-11-23 06:24:46,199 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 [2021-11-23 06:24:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 06:24:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 06:24:46,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 06:24:46,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 06:24:46,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 06:24:46,408 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 06:24:46,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 06:24:47,336 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 06:24:47,342 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 06:24:47,342 INFO L301 CfgBuilder]: Removed 83 assume(true) statements. [2021-11-23 06:24:47,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:24:47 BoogieIcfgContainer [2021-11-23 06:24:47,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 06:24:47,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 06:24:47,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 06:24:47,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 06:24:47,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 06:24:45" (1/3) ... [2021-11-23 06:24:47,348 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47766fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:24:47, skipping insertion in model container [2021-11-23 06:24:47,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 06:24:45" (2/3) ... [2021-11-23 06:24:47,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47766fe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 06:24:47, skipping insertion in model container [2021-11-23 06:24:47,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 06:24:47" (3/3) ... [2021-11-23 06:24:47,350 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test5-1.i [2021-11-23 06:24:47,353 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 06:24:47,353 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-23 06:24:47,383 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 06:24:47,388 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 06:24:47,388 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-23 06:24:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 263 states, 256 states have (on average 1.7109375) internal successors, (438), 262 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:47,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 06:24:47,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:47,405 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:47,406 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:47,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:47,409 INFO L85 PathProgramCache]: Analyzing trace with hash 889803269, now seen corresponding path program 1 times [2021-11-23 06:24:47,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:47,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742441242] [2021-11-23 06:24:47,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:47,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:47,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:47,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:47,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742441242] [2021-11-23 06:24:47,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742441242] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:47,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:47,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 06:24:47,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197331382] [2021-11-23 06:24:47,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:47,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 06:24:47,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:47,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 06:24:47,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 06:24:47,561 INFO L87 Difference]: Start difference. First operand has 263 states, 256 states have (on average 1.7109375) internal successors, (438), 262 states have internal predecessors, (438), 0 states have call successors, (0), 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 4.0) internal successors, (8), 2 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) [2021-11-23 06:24:47,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:47,608 INFO L93 Difference]: Finished difference Result 524 states and 874 transitions. [2021-11-23 06:24:47,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 06:24:47,609 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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 [2021-11-23 06:24:47,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:47,631 INFO L225 Difference]: With dead ends: 524 [2021-11-23 06:24:47,632 INFO L226 Difference]: Without dead ends: 259 [2021-11-23 06:24:47,636 INFO L932 BasicCegarLoop]: 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 [2021-11-23 06:24:47,639 INFO L933 BasicCegarLoop]: 342 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, 342 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 [2021-11-23 06:24:47,641 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:47,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-23 06:24:47,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2021-11-23 06:24:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 253 states have (on average 1.3359683794466404) internal successors, (338), 258 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:47,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 338 transitions. [2021-11-23 06:24:47,698 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 338 transitions. Word has length 8 [2021-11-23 06:24:47,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:47,698 INFO L470 AbstractCegarLoop]: Abstraction has 259 states and 338 transitions. [2021-11-23 06:24:47,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 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) [2021-11-23 06:24:47,699 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 338 transitions. [2021-11-23 06:24:47,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 06:24:47,701 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:47,701 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:47,701 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 06:24:47,701 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:47,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:47,703 INFO L85 PathProgramCache]: Analyzing trace with hash -680083031, now seen corresponding path program 1 times [2021-11-23 06:24:47,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:47,703 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975645887] [2021-11-23 06:24:47,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:47,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:47,745 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:47,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116106330] [2021-11-23 06:24:47,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:47,746 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:47,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:47,748 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) [2021-11-23 06:24:47,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 06:24:47,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:47,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 06:24:47,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:47,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:47,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:47,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975645887] [2021-11-23 06:24:47,984 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:47,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116106330] [2021-11-23 06:24:47,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116106330] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:47,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:47,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:24:47,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119058250] [2021-11-23 06:24:47,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:47,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:24:47,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:47,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:24:47,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:47,987 INFO L87 Difference]: Start difference. First operand 259 states and 338 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:48,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:48,018 INFO L93 Difference]: Finished difference Result 602 states and 784 transitions. [2021-11-23 06:24:48,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:24:48,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-23 06:24:48,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:48,021 INFO L225 Difference]: With dead ends: 602 [2021-11-23 06:24:48,021 INFO L226 Difference]: Without dead ends: 515 [2021-11-23 06:24:48,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:48,022 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 332 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:48,022 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [332 Valid, 663 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:48,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2021-11-23 06:24:48,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 260. [2021-11-23 06:24:48,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 254 states have (on average 1.3346456692913387) internal successors, (339), 259 states have internal predecessors, (339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 339 transitions. [2021-11-23 06:24:48,031 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 339 transitions. Word has length 42 [2021-11-23 06:24:48,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:48,032 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 339 transitions. [2021-11-23 06:24:48,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:48,032 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 339 transitions. [2021-11-23 06:24:48,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:48,036 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:48,037 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:48,054 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 06:24:48,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:48,252 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:48,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:48,253 INFO L85 PathProgramCache]: Analyzing trace with hash 1837409792, now seen corresponding path program 1 times [2021-11-23 06:24:48,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:48,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428643773] [2021-11-23 06:24:48,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:48,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:48,399 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:48,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1874143042] [2021-11-23 06:24:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:48,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:48,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:48,416 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) [2021-11-23 06:24:48,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 06:24:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:49,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 3050 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:49,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:49,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:49,400 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:49,400 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:49,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428643773] [2021-11-23 06:24:49,400 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:49,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874143042] [2021-11-23 06:24:49,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874143042] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:49,401 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:49,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:24:49,401 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044439362] [2021-11-23 06:24:49,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:49,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:24:49,402 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:49,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:24:49,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:49,403 INFO L87 Difference]: Start difference. First operand 260 states and 339 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:49,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:49,461 INFO L93 Difference]: Finished difference Result 538 states and 706 transitions. [2021-11-23 06:24:49,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:24:49,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:49,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:49,463 INFO L225 Difference]: With dead ends: 538 [2021-11-23 06:24:49,463 INFO L226 Difference]: Without dead ends: 281 [2021-11-23 06:24:49,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:49,465 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 9 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:49,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 621 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 06:24:49,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-11-23 06:24:49,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 280. [2021-11-23 06:24:49,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 274 states have (on average 1.3102189781021898) internal successors, (359), 279 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:49,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 359 transitions. [2021-11-23 06:24:49,470 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 359 transitions. Word has length 140 [2021-11-23 06:24:49,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:49,470 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 359 transitions. [2021-11-23 06:24:49,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:49,470 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 359 transitions. [2021-11-23 06:24:49,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:49,472 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:49,472 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:49,499 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 06:24:49,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-23 06:24:49,688 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:49,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:49,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1273244668, now seen corresponding path program 1 times [2021-11-23 06:24:49,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843051530] [2021-11-23 06:24:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:49,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:49,785 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:49,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112228589] [2021-11-23 06:24:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:49,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:49,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:49,787 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) [2021-11-23 06:24:49,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 06:24:50,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:50,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 3054 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:50,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:50,761 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:50,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:50,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843051530] [2021-11-23 06:24:50,761 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:50,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112228589] [2021-11-23 06:24:50,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112228589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:50,761 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:50,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:24:50,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485439357] [2021-11-23 06:24:50,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:50,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:24:50,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:50,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:24:50,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:50,764 INFO L87 Difference]: Start difference. First operand 280 states and 359 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:50,807 INFO L93 Difference]: Finished difference Result 578 states and 746 transitions. [2021-11-23 06:24:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:24:50,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:50,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:50,810 INFO L225 Difference]: With dead ends: 578 [2021-11-23 06:24:50,810 INFO L226 Difference]: Without dead ends: 301 [2021-11-23 06:24:50,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:50,812 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 9 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:50,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 621 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:50,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2021-11-23 06:24:50,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 300. [2021-11-23 06:24:50,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 294 states have (on average 1.2891156462585034) internal successors, (379), 299 states have internal predecessors, (379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 379 transitions. [2021-11-23 06:24:50,818 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 379 transitions. Word has length 140 [2021-11-23 06:24:50,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:50,826 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 379 transitions. [2021-11-23 06:24:50,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:50,827 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 379 transitions. [2021-11-23 06:24:50,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:50,831 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:50,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:50,857 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 06:24:51,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:51,048 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:51,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:51,048 INFO L85 PathProgramCache]: Analyzing trace with hash -882913664, now seen corresponding path program 1 times [2021-11-23 06:24:51,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:51,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666205442] [2021-11-23 06:24:51,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:51,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:51,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:51,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1970417652] [2021-11-23 06:24:51,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:51,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:51,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:51,185 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:24:51,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 06:24:52,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:52,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 3058 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:52,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:52,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 06:24:52,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:52,320 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:52,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666205442] [2021-11-23 06:24:52,320 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:52,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970417652] [2021-11-23 06:24:52,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1970417652] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:52,320 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:52,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:24:52,321 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377779793] [2021-11-23 06:24:52,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:52,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:24:52,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:52,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:24:52,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:52,322 INFO L87 Difference]: Start difference. First operand 300 states and 379 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:52,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:52,367 INFO L93 Difference]: Finished difference Result 407 states and 520 transitions. [2021-11-23 06:24:52,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:24:52,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:52,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:52,370 INFO L225 Difference]: With dead ends: 407 [2021-11-23 06:24:52,370 INFO L226 Difference]: Without dead ends: 321 [2021-11-23 06:24:52,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:24:52,371 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 10 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 621 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:52,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 621 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:52,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2021-11-23 06:24:52,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 320. [2021-11-23 06:24:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 314 states have (on average 1.2707006369426752) internal successors, (399), 319 states have internal predecessors, (399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:52,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 399 transitions. [2021-11-23 06:24:52,380 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 399 transitions. Word has length 140 [2021-11-23 06:24:52,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:52,384 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 399 transitions. [2021-11-23 06:24:52,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 399 transitions. [2021-11-23 06:24:52,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:52,387 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:52,387 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:52,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-23 06:24:52,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:52,612 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:52,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:52,612 INFO L85 PathProgramCache]: Analyzing trace with hash 115522436, now seen corresponding path program 1 times [2021-11-23 06:24:52,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:52,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7542889] [2021-11-23 06:24:52,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:52,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:52,721 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:52,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [915567104] [2021-11-23 06:24:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:52,722 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:52,723 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:24:52,762 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 06:24:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:53,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 3062 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:53,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:53,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:53,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7542889] [2021-11-23 06:24:53,962 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:53,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [915567104] [2021-11-23 06:24:53,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [915567104] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:53,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:53,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:24:53,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103569941] [2021-11-23 06:24:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:53,963 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:24:53,963 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:53,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:24:53,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:24:53,964 INFO L87 Difference]: Start difference. First operand 320 states and 399 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:54,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:54,028 INFO L93 Difference]: Finished difference Result 629 states and 787 transitions. [2021-11-23 06:24:54,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:24:54,036 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:54,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:54,037 INFO L225 Difference]: With dead ends: 629 [2021-11-23 06:24:54,037 INFO L226 Difference]: Without dead ends: 312 [2021-11-23 06:24:54,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:24:54,038 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 326 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 326 SdHoareTripleChecker+Valid, 629 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:54,038 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [326 Valid, 629 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 06:24:54,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-11-23 06:24:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 306. [2021-11-23 06:24:54,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 300 states have (on average 1.26) internal successors, (378), 305 states have internal predecessors, (378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:54,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 378 transitions. [2021-11-23 06:24:54,044 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 378 transitions. Word has length 140 [2021-11-23 06:24:54,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:54,044 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 378 transitions. [2021-11-23 06:24:54,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:54,044 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 378 transitions. [2021-11-23 06:24:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:54,045 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:54,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:54,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 06:24:54,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:54,260 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:54,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:54,260 INFO L85 PathProgramCache]: Analyzing trace with hash 32737974, now seen corresponding path program 1 times [2021-11-23 06:24:54,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:54,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349582972] [2021-11-23 06:24:54,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:54,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:54,400 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:54,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1273433299] [2021-11-23 06:24:54,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:54,400 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:54,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:54,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:24:54,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 06:24:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:55,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 3048 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:55,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:55,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:55,711 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:55,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349582972] [2021-11-23 06:24:55,711 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:55,711 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273433299] [2021-11-23 06:24:55,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273433299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:55,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:55,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:24:55,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490918586] [2021-11-23 06:24:55,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:55,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:24:55,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:55,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:24:55,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:24:55,713 INFO L87 Difference]: Start difference. First operand 306 states and 378 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:55,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:55,761 INFO L93 Difference]: Finished difference Result 690 states and 854 transitions. [2021-11-23 06:24:55,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:24:55,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:55,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:55,785 INFO L225 Difference]: With dead ends: 690 [2021-11-23 06:24:55,787 INFO L226 Difference]: Without dead ends: 387 [2021-11-23 06:24:55,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:24:55,788 INFO L933 BasicCegarLoop]: 413 mSDtfsCounter, 319 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:55,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [319 Valid, 924 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:55,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-23 06:24:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 292. [2021-11-23 06:24:55,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 286 states have (on average 1.2482517482517483) internal successors, (357), 291 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:55,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 357 transitions. [2021-11-23 06:24:55,793 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 357 transitions. Word has length 140 [2021-11-23 06:24:55,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:55,793 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 357 transitions. [2021-11-23 06:24:55,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:55,794 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 357 transitions. [2021-11-23 06:24:55,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:55,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:55,794 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:55,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 06:24:55,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:55,995 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:55,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash -577227324, now seen corresponding path program 1 times [2021-11-23 06:24:55,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:55,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624435417] [2021-11-23 06:24:55,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:55,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:56,105 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:56,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [228766396] [2021-11-23 06:24:56,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:56,106 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:56,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:56,107 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:24:56,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 06:24:57,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:57,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 3034 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:57,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:57,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 06:24:57,585 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:24:57,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:57,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624435417] [2021-11-23 06:24:57,585 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:57,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228766396] [2021-11-23 06:24:57,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228766396] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:24:57,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:24:57,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 06:24:57,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088072608] [2021-11-23 06:24:57,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:24:57,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 06:24:57,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:57,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 06:24:57,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 06:24:57,588 INFO L87 Difference]: Start difference. First operand 292 states and 357 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:57,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:57,652 INFO L93 Difference]: Finished difference Result 389 states and 478 transitions. [2021-11-23 06:24:57,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 06:24:57,652 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:57,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:57,653 INFO L225 Difference]: With dead ends: 389 [2021-11-23 06:24:57,654 INFO L226 Difference]: Without dead ends: 283 [2021-11-23 06:24:57,654 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 06:24:57,654 INFO L933 BasicCegarLoop]: 301 mSDtfsCounter, 100 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:57,655 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 807 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:57,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-11-23 06:24:57,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 278. [2021-11-23 06:24:57,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 272 states have (on average 1.2352941176470589) internal successors, (336), 277 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:57,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 336 transitions. [2021-11-23 06:24:57,684 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 336 transitions. Word has length 140 [2021-11-23 06:24:57,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:57,684 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 336 transitions. [2021-11-23 06:24:57,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:57,684 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 336 transitions. [2021-11-23 06:24:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-23 06:24:57,685 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:57,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:57,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-23 06:24:57,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:57,886 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:24:57,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:24:57,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1460076170, now seen corresponding path program 1 times [2021-11-23 06:24:57,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:24:57,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002738861] [2021-11-23 06:24:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:57,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:24:57,986 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:24:57,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [750763897] [2021-11-23 06:24:57,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:24:57,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:24:57,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:24:57,992 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:24:57,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 06:24:59,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:24:59,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 06:24:59,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:24:59,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:59,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 06:24:59,775 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:24:59,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:24:59,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002738861] [2021-11-23 06:24:59,776 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:24:59,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750763897] [2021-11-23 06:24:59,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750763897] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 06:24:59,776 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 06:24:59,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-23 06:24:59,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243468955] [2021-11-23 06:24:59,776 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 06:24:59,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 06:24:59,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:24:59,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 06:24:59,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 06:24:59,778 INFO L87 Difference]: Start difference. First operand 278 states and 336 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:59,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:24:59,824 INFO L93 Difference]: Finished difference Result 1101 states and 1333 transitions. [2021-11-23 06:24:59,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 06:24:59,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-11-23 06:24:59,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:24:59,827 INFO L225 Difference]: With dead ends: 1101 [2021-11-23 06:24:59,827 INFO L226 Difference]: Without dead ends: 1008 [2021-11-23 06:24:59,828 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-23 06:24:59,829 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 1661 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1661 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:24:59,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1661 Valid, 1238 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:24:59,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-11-23 06:24:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 824. [2021-11-23 06:24:59,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 824 states, 818 states have (on average 1.2249388753056234) internal successors, (1002), 823 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:59,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1002 transitions. [2021-11-23 06:24:59,846 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1002 transitions. Word has length 140 [2021-11-23 06:24:59,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:24:59,846 INFO L470 AbstractCegarLoop]: Abstraction has 824 states and 1002 transitions. [2021-11-23 06:24:59,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:24:59,847 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1002 transitions. [2021-11-23 06:24:59,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-23 06:24:59,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:24:59,884 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:24:59,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 06:25:00,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-23 06:25:00,085 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:25:00,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:25:00,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1752556603, now seen corresponding path program 2 times [2021-11-23 06:25:00,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:25:00,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668064918] [2021-11-23 06:25:00,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:00,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:25:00,500 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:25:00,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [56085488] [2021-11-23 06:25:00,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-23 06:25:00,501 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:25:00,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:25:00,502 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:25:00,619 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 06:25:03,839 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-23 06:25:03,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 06:25:03,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 11696 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-23 06:25:03,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:25:04,507 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:25:04,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 06:25:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 06:25:05,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:25:05,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668064918] [2021-11-23 06:25:05,199 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:25:05,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [56085488] [2021-11-23 06:25:05,199 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [56085488] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 06:25:05,199 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2021-11-23 06:25:05,199 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-23 06:25:05,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337379349] [2021-11-23 06:25:05,200 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2021-11-23 06:25:05,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 06:25:05,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:25:05,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 06:25:05,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 06:25:05,204 INFO L87 Difference]: Start difference. First operand 824 states and 1002 transitions. Second operand has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:25:05,370 INFO L93 Difference]: Finished difference Result 2469 states and 2995 transitions. [2021-11-23 06:25:05,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 06:25:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 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 434 [2021-11-23 06:25:05,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:25:05,380 INFO L225 Difference]: With dead ends: 2469 [2021-11-23 06:25:05,381 INFO L226 Difference]: Without dead ends: 2376 [2021-11-23 06:25:05,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-23 06:25:05,382 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 6660 mSDsluCounter, 2571 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6660 SdHoareTripleChecker+Valid, 2883 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 06:25:05,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6660 Valid, 2883 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 06:25:05,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2376 states. [2021-11-23 06:25:05,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2376 to 1916. [2021-11-23 06:25:05,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1916 states, 1910 states have (on average 1.2219895287958116) internal successors, (2334), 1915 states have internal predecessors, (2334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1916 states to 1916 states and 2334 transitions. [2021-11-23 06:25:05,426 INFO L78 Accepts]: Start accepts. Automaton has 1916 states and 2334 transitions. Word has length 434 [2021-11-23 06:25:05,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:25:05,427 INFO L470 AbstractCegarLoop]: Abstraction has 1916 states and 2334 transitions. [2021-11-23 06:25:05,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1916 states and 2334 transitions. [2021-11-23 06:25:05,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-11-23 06:25:05,452 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:25:05,452 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:25:05,510 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-11-23 06:25:05,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-23 06:25:05,657 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:25:05,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:25:05,657 INFO L85 PathProgramCache]: Analyzing trace with hash -675748219, now seen corresponding path program 3 times [2021-11-23 06:25:05,657 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:25:05,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992481159] [2021-11-23 06:25:05,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:05,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:25:06,733 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:25:06,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [819179416] [2021-11-23 06:25:06,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 06:25:06,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:25:06,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:25:06,735 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:25:06,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 06:25:11,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-23 06:25:11,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 06:25:11,127 INFO L263 TraceCheckSpWp]: Trace formula consists of 3020 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:25:11,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:25:14,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4420 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 4275 trivial. 0 not checked. [2021-11-23 06:25:14,424 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:25:14,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:25:14,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992481159] [2021-11-23 06:25:14,425 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:25:14,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819179416] [2021-11-23 06:25:14,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819179416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:25:14,425 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:25:14,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:25:14,426 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712801417] [2021-11-23 06:25:14,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:25:14,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:25:14,426 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:25:14,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:25:14,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:14,427 INFO L87 Difference]: Start difference. First operand 1916 states and 2334 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:14,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:25:14,476 INFO L93 Difference]: Finished difference Result 3761 states and 4580 transitions. [2021-11-23 06:25:14,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:25:14,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1022 [2021-11-23 06:25:14,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:25:14,482 INFO L225 Difference]: With dead ends: 3761 [2021-11-23 06:25:14,482 INFO L226 Difference]: Without dead ends: 1990 [2021-11-23 06:25:14,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:14,484 INFO L933 BasicCegarLoop]: 357 mSDtfsCounter, 154 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 652 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:25:14,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [154 Valid, 652 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:25:14,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1990 states. [2021-11-23 06:25:14,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1990 to 1978. [2021-11-23 06:25:14,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1978 states, 1972 states have (on average 1.2226166328600405) internal successors, (2411), 1977 states have internal predecessors, (2411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:14,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2411 transitions. [2021-11-23 06:25:14,518 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2411 transitions. Word has length 1022 [2021-11-23 06:25:14,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:25:14,518 INFO L470 AbstractCegarLoop]: Abstraction has 1978 states and 2411 transitions. [2021-11-23 06:25:14,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:14,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2411 transitions. [2021-11-23 06:25:14,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2021-11-23 06:25:14,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:25:14,528 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:25:14,563 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-11-23 06:25:14,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-23 06:25:14,756 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:25:14,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:25:14,756 INFO L85 PathProgramCache]: Analyzing trace with hash -680932027, now seen corresponding path program 1 times [2021-11-23 06:25:14,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:25:14,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674135212] [2021-11-23 06:25:14,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:14,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:25:15,889 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:25:15,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [862954514] [2021-11-23 06:25:15,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:15,890 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:25:15,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:25:15,891 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:25:15,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 06:25:24,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:25:24,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 28164 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:25:24,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:25:25,806 INFO L134 CoverageAnalysis]: Checked inductivity of 4402 backedges. 325 proven. 0 refuted. 0 times theorem prover too weak. 4077 trivial. 0 not checked. [2021-11-23 06:25:25,807 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:25:25,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:25:25,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674135212] [2021-11-23 06:25:25,808 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:25:25,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [862954514] [2021-11-23 06:25:25,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [862954514] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:25:25,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:25:25,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:25:25,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464268518] [2021-11-23 06:25:25,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:25:25,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:25:25,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:25:25,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:25:25,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:25,809 INFO L87 Difference]: Start difference. First operand 1978 states and 2411 transitions. Second operand has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:25:25,867 INFO L93 Difference]: Finished difference Result 3898 states and 4756 transitions. [2021-11-23 06:25:25,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:25:25,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1029 [2021-11-23 06:25:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:25:25,876 INFO L225 Difference]: With dead ends: 3898 [2021-11-23 06:25:25,876 INFO L226 Difference]: Without dead ends: 1976 [2021-11-23 06:25:25,880 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:25,881 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 19 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:25:25,881 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 616 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:25:25,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1976 states. [2021-11-23 06:25:25,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1976 to 1976. [2021-11-23 06:25:25,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1976 states, 1970 states have (on average 1.2223350253807106) internal successors, (2408), 1975 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:25,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1976 states to 1976 states and 2408 transitions. [2021-11-23 06:25:25,918 INFO L78 Accepts]: Start accepts. Automaton has 1976 states and 2408 transitions. Word has length 1029 [2021-11-23 06:25:25,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:25:25,919 INFO L470 AbstractCegarLoop]: Abstraction has 1976 states and 2408 transitions. [2021-11-23 06:25:25,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:25,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1976 states and 2408 transitions. [2021-11-23 06:25:25,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2021-11-23 06:25:25,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:25:25,929 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:25:26,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-23 06:25:26,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-23 06:25:26,156 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:25:26,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:25:26,156 INFO L85 PathProgramCache]: Analyzing trace with hash 733966165, now seen corresponding path program 1 times [2021-11-23 06:25:26,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:25:26,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786130246] [2021-11-23 06:25:26,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:26,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:25:27,173 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:25:27,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154860737] [2021-11-23 06:25:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:27,174 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:25:27,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:25:27,175 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:25:27,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-23 06:25:36,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 06:25:37,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 27280 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 06:25:37,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 06:25:40,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4384 backedges. 1431 proven. 0 refuted. 0 times theorem prover too weak. 2953 trivial. 0 not checked. [2021-11-23 06:25:40,143 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 06:25:40,144 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 06:25:40,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786130246] [2021-11-23 06:25:40,144 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 06:25:40,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154860737] [2021-11-23 06:25:40,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154860737] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 06:25:40,144 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 06:25:40,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 06:25:40,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951914975] [2021-11-23 06:25:40,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 06:25:40,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 06:25:40,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 06:25:40,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 06:25:40,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:40,146 INFO L87 Difference]: Start difference. First operand 1976 states and 2408 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:40,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 06:25:40,227 INFO L93 Difference]: Finished difference Result 4916 states and 5993 transitions. [2021-11-23 06:25:40,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 06:25:40,229 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 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 1036 [2021-11-23 06:25:40,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 06:25:40,239 INFO L225 Difference]: With dead ends: 4916 [2021-11-23 06:25:40,239 INFO L226 Difference]: Without dead ends: 3438 [2021-11-23 06:25:40,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1035 GetRequests, 1034 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 06:25:40,243 INFO L933 BasicCegarLoop]: 505 mSDtfsCounter, 169 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 06:25:40,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 790 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 06:25:40,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3438 states. [2021-11-23 06:25:40,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3438 to 3426. [2021-11-23 06:25:40,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3426 states, 3420 states have (on average 1.2198830409356725) internal successors, (4172), 3425 states have internal predecessors, (4172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:40,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3426 states to 3426 states and 4172 transitions. [2021-11-23 06:25:40,314 INFO L78 Accepts]: Start accepts. Automaton has 3426 states and 4172 transitions. Word has length 1036 [2021-11-23 06:25:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 06:25:40,315 INFO L470 AbstractCegarLoop]: Abstraction has 3426 states and 4172 transitions. [2021-11-23 06:25:40,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 06:25:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 3426 states and 4172 transitions. [2021-11-23 06:25:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1044 [2021-11-23 06:25:40,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 06:25:40,327 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 06:25:40,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-23 06:25:40,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-23 06:25:40,542 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-23 06:25:40,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 06:25:40,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1492434323, now seen corresponding path program 1 times [2021-11-23 06:25:40,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 06:25:40,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525772065] [2021-11-23 06:25:40,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:40,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 06:25:41,772 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 06:25:41,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [708425232] [2021-11-23 06:25:41,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 06:25:41,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 06:25:41,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-23 06:25:41,774 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 06:25:41,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process Killed by 15