./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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_JEN_test2-1.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 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 05:33:41,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:33:41,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:33:41,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:33:41,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:33:41,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:33:41,968 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:33:41,970 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:33:41,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:33:41,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:33:41,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:33:41,977 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:33:41,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:33:41,979 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:33:41,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:33:41,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:33:41,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:33:41,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:33:41,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:33:41,993 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:33:41,995 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:33:41,996 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:33:41,997 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:33:41,998 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:33:42,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:33:42,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:33:42,004 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:33:42,005 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:33:42,006 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:33:42,007 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:33:42,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:33:42,008 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:33:42,010 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:33:42,010 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:33:42,011 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:33:42,011 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:33:42,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:33:42,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:33:42,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:33:42,012 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:33:42,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:33:42,014 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-03 05:33:42,038 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:33:42,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:33:42,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 05:33:42,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 05:33:42,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:33:42,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:33:42,043 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 05:33:42,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:33:42,043 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:33:42,043 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:33:42,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:33:42,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:33:42,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:33:42,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:33:42,044 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:33:42,045 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:33:42,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:42,046 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 05:33:42,046 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 05:33:42,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:33:42,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:33:42,047 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ccd4b93de7420a1f7847638daedeeee3b82eb082e434a23182d7e5e0aee2085 [2021-11-03 05:33:42,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:33:42,254 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:33:42,256 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:33:42,257 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:33:42,258 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:33:42,259 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2021-11-03 05:33:42,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/353ba5217/dcfd3467f56f4823a179c581e8b2a777/FLAG543ed041e [2021-11-03 05:33:42,739 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:33:42,740 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test2-1.i [2021-11-03 05:33:42,753 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/353ba5217/dcfd3467f56f4823a179c581e8b2a777/FLAG543ed041e [2021-11-03 05:33:42,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/353ba5217/dcfd3467f56f4823a179c581e8b2a777 [2021-11-03 05:33:42,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:33:42,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:33:42,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:42,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:33:42,774 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:33:42,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:42" (1/1) ... [2021-11-03 05:33:42,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e9ce65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:42, skipping insertion in model container [2021-11-03 05:33:42,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:33:42" (1/1) ... [2021-11-03 05:33:42,780 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:33:42,829 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:33:43,069 WARN L228 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_JEN_test2-1.i[37019,37032] [2021-11-03 05:33:43,161 WARN L228 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_JEN_test2-1.i[47352,47365] [2021-11-03 05:33:43,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:43,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:33:43,198 WARN L228 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_JEN_test2-1.i[37019,37032] [2021-11-03 05:33:43,234 WARN L228 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_JEN_test2-1.i[47352,47365] [2021-11-03 05:33:43,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:33:43,265 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:33:43,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43 WrapperNode [2021-11-03 05:33:43,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:33:43,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:43,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:33:43,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:33:43,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,289 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,329 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:33:43,329 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:33:43,330 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:33:43,330 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:33:43,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,342 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,342 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:33:43,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:33:43,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:33:43,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:33:43,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (1/1) ... [2021-11-03 05:33:43,392 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:33:43,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:43,410 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) [2021-11-03 05:33:43,412 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 [2021-11-03 05:33:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:33:43,462 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:33:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:33:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:33:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:33:43,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:33:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:33:43,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:33:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:33:43,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:33:43,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:33:44,033 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:33:44,034 INFO L299 CfgBuilder]: Removed 76 assume(true) statements. [2021-11-03 05:33:44,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:44 BoogieIcfgContainer [2021-11-03 05:33:44,036 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:33:44,037 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:33:44,038 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:33:44,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:33:44,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:33:42" (1/3) ... [2021-11-03 05:33:44,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be4a93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:44, skipping insertion in model container [2021-11-03 05:33:44,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:33:43" (2/3) ... [2021-11-03 05:33:44,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3be4a93e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:33:44, skipping insertion in model container [2021-11-03 05:33:44,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:33:44" (3/3) ... [2021-11-03 05:33:44,047 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test2-1.i [2021-11-03 05:33:44,053 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:33:44,053 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 05:33:44,088 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:33:44,093 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 [2021-11-03 05:33:44,094 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 05:33:44,108 INFO L276 IsEmpty]: Start isEmpty. Operand has 177 states, 170 states have (on average 1.723529411764706) internal successors, (293), 176 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:44,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-03 05:33:44,113 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:44,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:44,114 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)] === [2021-11-03 05:33:44,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:44,118 INFO L85 PathProgramCache]: Analyzing trace with hash 239231399, now seen corresponding path program 1 times [2021-11-03 05:33:44,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:44,125 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961928347] [2021-11-03 05:33:44,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:44,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:44,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:44,271 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:44,271 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961928347] [2021-11-03 05:33:44,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961928347] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:44,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:44,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:33:44,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759865053] [2021-11-03 05:33:44,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:33:44,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:44,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:33:44,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:44,307 INFO L87 Difference]: Start difference. First operand has 177 states, 170 states have (on average 1.723529411764706) internal successors, (293), 176 states have internal predecessors, (293), 0 states have call successors, (0), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:44,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:44,717 INFO L93 Difference]: Finished difference Result 352 states and 584 transitions. [2021-11-03 05:33:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:33:44,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-03 05:33:44,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:44,727 INFO L225 Difference]: With dead ends: 352 [2021-11-03 05:33:44,728 INFO L226 Difference]: Without dead ends: 173 [2021-11-03 05:33:44,732 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:33:44,736 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 289.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.24ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 355.27ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:44,738 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 229 Unknown, 0 Unchecked, 2.24ms Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 355.27ms Time] [2021-11-03 05:33:44,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-03 05:33:44,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2021-11-03 05:33:44,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 167 states have (on average 1.347305389221557) internal successors, (225), 172 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:44,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 225 transitions. [2021-11-03 05:33:44,785 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 225 transitions. Word has length 9 [2021-11-03 05:33:44,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:44,786 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 225 transitions. [2021-11-03 05:33:44,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:44,786 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 225 transitions. [2021-11-03 05:33:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-03 05:33:44,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:44,789 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] [2021-11-03 05:33:44,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:33:44,789 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)] === [2021-11-03 05:33:44,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:44,792 INFO L85 PathProgramCache]: Analyzing trace with hash 627334177, now seen corresponding path program 1 times [2021-11-03 05:33:44,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:44,793 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532297027] [2021-11-03 05:33:44,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:44,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:44,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:44,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:44,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:44,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532297027] [2021-11-03 05:33:44,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532297027] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:44,863 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:44,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:33:44,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631423272] [2021-11-03 05:33:44,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:44,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:44,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:44,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:44,866 INFO L87 Difference]: Start difference. First operand 173 states and 225 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:45,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:45,650 INFO L93 Difference]: Finished difference Result 377 states and 490 transitions. [2021-11-03 05:33:45,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:45,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-11-03 05:33:45,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:45,653 INFO L225 Difference]: With dead ends: 377 [2021-11-03 05:33:45,653 INFO L226 Difference]: Without dead ends: 294 [2021-11-03 05:33:45,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.67ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:45,654 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 153 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 673 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 613.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.70ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 734.41ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:45,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 0 Invalid, 676 Unknown, 0 Unchecked, 7.70ms Time], IncrementalHoareTripleChecker [3 Valid, 673 Invalid, 0 Unknown, 0 Unchecked, 734.41ms Time] [2021-11-03 05:33:45,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2021-11-03 05:33:45,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 175. [2021-11-03 05:33:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 169 states have (on average 1.3431952662721893) internal successors, (227), 174 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 227 transitions. [2021-11-03 05:33:45,675 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 227 transitions. Word has length 44 [2021-11-03 05:33:45,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:45,675 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 227 transitions. [2021-11-03 05:33:45,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 227 transitions. [2021-11-03 05:33:45,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:33:45,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:45,681 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:45,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 05:33:45,682 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)] === [2021-11-03 05:33:45,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:45,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1103505073, now seen corresponding path program 1 times [2021-11-03 05:33:45,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:45,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738613272] [2021-11-03 05:33:45,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:45,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:45,716 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:45,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [397695560] [2021-11-03 05:33:45,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:45,717 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:45,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:45,719 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) [2021-11-03 05:33:45,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 05:33:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:45,854 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:45,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:46,093 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:46,094 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:46,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:46,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738613272] [2021-11-03 05:33:46,094 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:46,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [397695560] [2021-11-03 05:33:46,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [397695560] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:46,098 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:46,098 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:33:46,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633108634] [2021-11-03 05:33:46,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:33:46,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:46,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:33:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:46,101 INFO L87 Difference]: Start difference. First operand 175 states and 227 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:46,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:46,455 INFO L93 Difference]: Finished difference Result 367 states and 481 transitions. [2021-11-03 05:33:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:33:46,456 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2021-11-03 05:33:46,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:46,457 INFO L225 Difference]: With dead ends: 367 [2021-11-03 05:33:46,457 INFO L226 Difference]: Without dead ends: 196 [2021-11-03 05:33:46,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:46,458 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 274.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.67ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 337.26ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:46,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 467 Unknown, 0 Unchecked, 1.67ms Time], IncrementalHoareTripleChecker [28 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 337.26ms Time] [2021-11-03 05:33:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2021-11-03 05:33:46,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 195. [2021-11-03 05:33:46,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 189 states have (on average 1.306878306878307) internal successors, (247), 194 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:46,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 247 transitions. [2021-11-03 05:33:46,471 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 247 transitions. Word has length 96 [2021-11-03 05:33:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:46,471 INFO L470 AbstractCegarLoop]: Abstraction has 195 states and 247 transitions. [2021-11-03 05:33:46,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:46,471 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 247 transitions. [2021-11-03 05:33:46,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:33:46,477 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:46,477 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:46,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:46,695 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:46,696 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)] === [2021-11-03 05:33:46,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:46,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1343744819, now seen corresponding path program 1 times [2021-11-03 05:33:46,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:46,697 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807359978] [2021-11-03 05:33:46,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:46,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:46,710 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:46,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1917723439] [2021-11-03 05:33:46,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:46,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:46,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:46,714 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) [2021-11-03 05:33:46,726 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 05:33:46,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:46,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:46,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:47,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 05:33:47,003 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:47,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:47,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807359978] [2021-11-03 05:33:47,003 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:47,003 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1917723439] [2021-11-03 05:33:47,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1917723439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:47,004 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:47,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:33:47,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638026558] [2021-11-03 05:33:47,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:33:47,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:33:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:47,005 INFO L87 Difference]: Start difference. First operand 195 states and 247 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:47,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:47,370 INFO L93 Difference]: Finished difference Result 298 states and 384 transitions. [2021-11-03 05:33:47,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:33:47,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-03 05:33:47,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:47,372 INFO L225 Difference]: With dead ends: 298 [2021-11-03 05:33:47,372 INFO L226 Difference]: Without dead ends: 216 [2021-11-03 05:33:47,373 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.36ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:47,373 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 286.06ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.61ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 350.70ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:47,374 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 467 Unknown, 0 Unchecked, 1.61ms Time], IncrementalHoareTripleChecker [28 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 350.70ms Time] [2021-11-03 05:33:47,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-03 05:33:47,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-03 05:33:47,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 209 states have (on average 1.277511961722488) internal successors, (267), 214 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 267 transitions. [2021-11-03 05:33:47,380 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 267 transitions. Word has length 96 [2021-11-03 05:33:47,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:47,380 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 267 transitions. [2021-11-03 05:33:47,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 267 transitions. [2021-11-03 05:33:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:33:47,381 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:47,382 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:47,405 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:47,599 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,SelfDestructingSolverStorable3 [2021-11-03 05:33:47,599 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)] === [2021-11-03 05:33:47,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:47,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1663949871, now seen corresponding path program 1 times [2021-11-03 05:33:47,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:47,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772949855] [2021-11-03 05:33:47,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:47,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:47,611 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:47,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [638329230] [2021-11-03 05:33:47,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:47,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:47,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:47,613 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) [2021-11-03 05:33:47,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 05:33:47,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:47,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:47,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:47,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:47,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:47,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:47,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772949855] [2021-11-03 05:33:47,896 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:47,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638329230] [2021-11-03 05:33:47,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638329230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:47,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:47,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:33:47,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557320968] [2021-11-03 05:33:47,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:47,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:47,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:47,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:47,898 INFO L87 Difference]: Start difference. First operand 215 states and 267 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:48,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:48,310 INFO L93 Difference]: Finished difference Result 418 states and 522 transitions. [2021-11-03 05:33:48,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:48,311 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2021-11-03 05:33:48,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:48,312 INFO L225 Difference]: With dead ends: 418 [2021-11-03 05:33:48,312 INFO L226 Difference]: Without dead ends: 207 [2021-11-03 05:33:48,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.09ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:48,313 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 213 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 317.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.43ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 385.59ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:48,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 0 Invalid, 472 Unknown, 0 Unchecked, 2.43ms Time], IncrementalHoareTripleChecker [24 Valid, 448 Invalid, 0 Unknown, 0 Unchecked, 385.59ms Time] [2021-11-03 05:33:48,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-11-03 05:33:48,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 201. [2021-11-03 05:33:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 195 states have (on average 1.2615384615384615) internal successors, (246), 200 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:48,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 246 transitions. [2021-11-03 05:33:48,319 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 246 transitions. Word has length 96 [2021-11-03 05:33:48,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:48,319 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 246 transitions. [2021-11-03 05:33:48,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 246 transitions. [2021-11-03 05:33:48,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:33:48,320 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:48,321 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:48,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:48,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:48,536 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)] === [2021-11-03 05:33:48,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:48,536 INFO L85 PathProgramCache]: Analyzing trace with hash 569918303, now seen corresponding path program 1 times [2021-11-03 05:33:48,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:48,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313428552] [2021-11-03 05:33:48,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:48,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:48,546 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:48,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1435861780] [2021-11-03 05:33:48,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:48,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:48,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:48,548 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) [2021-11-03 05:33:48,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 05:33:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:48,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:48,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:48,817 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-03 05:33:48,817 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:48,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:48,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313428552] [2021-11-03 05:33:48,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:48,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435861780] [2021-11-03 05:33:48,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435861780] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:48,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:48,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:33:48,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793353833] [2021-11-03 05:33:48,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:48,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:48,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:48,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:48,820 INFO L87 Difference]: Start difference. First operand 201 states and 246 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:49,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:49,286 INFO L93 Difference]: Finished difference Result 295 states and 364 transitions. [2021-11-03 05:33:49,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:49,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2021-11-03 05:33:49,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:49,287 INFO L225 Difference]: With dead ends: 295 [2021-11-03 05:33:49,287 INFO L226 Difference]: Without dead ends: 193 [2021-11-03 05:33:49,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.28ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:49,289 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 96 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 376.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 445.14ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:49,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 0 Invalid, 562 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [24 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 445.14ms Time] [2021-11-03 05:33:49,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-11-03 05:33:49,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 187. [2021-11-03 05:33:49,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 181 states have (on average 1.2430939226519337) internal successors, (225), 186 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 225 transitions. [2021-11-03 05:33:49,294 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 225 transitions. Word has length 96 [2021-11-03 05:33:49,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:49,294 INFO L470 AbstractCegarLoop]: Abstraction has 187 states and 225 transitions. [2021-11-03 05:33:49,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 225 transitions. [2021-11-03 05:33:49,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2021-11-03 05:33:49,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:49,296 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:49,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:49,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:49,507 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)] === [2021-11-03 05:33:49,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:49,508 INFO L85 PathProgramCache]: Analyzing trace with hash -312930543, now seen corresponding path program 1 times [2021-11-03 05:33:49,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:49,508 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556183788] [2021-11-03 05:33:49,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:49,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:49,526 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:49,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2079140361] [2021-11-03 05:33:49,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:49,534 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:49,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:49,535 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) [2021-11-03 05:33:49,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:33:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:49,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:33:49,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:49,838 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:49,838 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:49,838 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556183788] [2021-11-03 05:33:49,839 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:49,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079140361] [2021-11-03 05:33:49,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079140361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:49,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:49,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:33:49,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247136925] [2021-11-03 05:33:49,840 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:33:49,840 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:33:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:49,841 INFO L87 Difference]: Start difference. First operand 187 states and 225 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:50,413 INFO L93 Difference]: Finished difference Result 486 states and 579 transitions. [2021-11-03 05:33:50,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:33:50,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2021-11-03 05:33:50,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:50,415 INFO L225 Difference]: With dead ends: 486 [2021-11-03 05:33:50,415 INFO L226 Difference]: Without dead ends: 303 [2021-11-03 05:33:50,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:50,416 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 94 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 487.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.33ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 553.00ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:50,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 0 Invalid, 455 Unknown, 0 Unchecked, 1.33ms Time], IncrementalHoareTripleChecker [3 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 553.00ms Time] [2021-11-03 05:33:50,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-03 05:33:50,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 291. [2021-11-03 05:33:50,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 285 states have (on average 1.2280701754385965) internal successors, (350), 290 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 350 transitions. [2021-11-03 05:33:50,422 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 350 transitions. Word has length 96 [2021-11-03 05:33:50,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:50,422 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 350 transitions. [2021-11-03 05:33:50,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:50,422 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 350 transitions. [2021-11-03 05:33:50,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-03 05:33:50,423 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:50,423 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:50,444 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:50,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:50,639 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)] === [2021-11-03 05:33:50,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:50,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1090926304, now seen corresponding path program 1 times [2021-11-03 05:33:50,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:50,640 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645809460] [2021-11-03 05:33:50,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:50,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:50,650 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:50,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1688518233] [2021-11-03 05:33:50,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:50,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:50,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:50,652 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) [2021-11-03 05:33:50,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 05:33:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:50,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:33:50,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:50,901 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:33:50,901 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:50,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:50,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645809460] [2021-11-03 05:33:50,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:50,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688518233] [2021-11-03 05:33:50,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688518233] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:50,902 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:50,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:33:50,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156226361] [2021-11-03 05:33:50,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:33:50,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:50,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:33:50,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:50,903 INFO L87 Difference]: Start difference. First operand 291 states and 350 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:51,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:51,248 INFO L93 Difference]: Finished difference Result 536 states and 651 transitions. [2021-11-03 05:33:51,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:33:51,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2021-11-03 05:33:51,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:51,250 INFO L225 Difference]: With dead ends: 536 [2021-11-03 05:33:51,250 INFO L226 Difference]: Without dead ends: 293 [2021-11-03 05:33:51,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:33:51,251 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 260.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.01ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 330.27ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:51,251 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 422 Unknown, 0 Unchecked, 1.01ms Time], IncrementalHoareTripleChecker [2 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 330.27ms Time] [2021-11-03 05:33:51,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2021-11-03 05:33:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 293. [2021-11-03 05:33:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 287 states have (on average 1.2264808362369337) internal successors, (352), 292 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:51,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 352 transitions. [2021-11-03 05:33:51,260 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 352 transitions. Word has length 103 [2021-11-03 05:33:51,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:51,261 INFO L470 AbstractCegarLoop]: Abstraction has 293 states and 352 transitions. [2021-11-03 05:33:51,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 352 transitions. [2021-11-03 05:33:51,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-03 05:33:51,262 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:51,262 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:51,282 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:51,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:51,471 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)] === [2021-11-03 05:33:51,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:51,472 INFO L85 PathProgramCache]: Analyzing trace with hash 77446145, now seen corresponding path program 1 times [2021-11-03 05:33:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:51,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888114940] [2021-11-03 05:33:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:51,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:51,494 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:51,499 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1425762162] [2021-11-03 05:33:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:51,499 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:51,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:51,500 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) [2021-11-03 05:33:51,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 05:33:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:51,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:33:51,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:51,765 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:33:51,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:51,926 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:33:51,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:51,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888114940] [2021-11-03 05:33:51,927 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:51,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425762162] [2021-11-03 05:33:51,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425762162] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:33:51,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:33:51,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 05:33:51,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528448688] [2021-11-03 05:33:51,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:33:51,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:51,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:33:51,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:33:51,929 INFO L87 Difference]: Start difference. First operand 293 states and 352 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:52,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:52,531 INFO L93 Difference]: Finished difference Result 544 states and 663 transitions. [2021-11-03 05:33:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:33:52,537 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 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 105 [2021-11-03 05:33:52,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:52,538 INFO L225 Difference]: With dead ends: 544 [2021-11-03 05:33:52,538 INFO L226 Difference]: Without dead ends: 299 [2021-11-03 05:33:52,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.15ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:33:52,539 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 472.19ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.62ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 575.96ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:52,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 851 Unknown, 0 Unchecked, 2.62ms Time], IncrementalHoareTripleChecker [11 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 575.96ms Time] [2021-11-03 05:33:52,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2021-11-03 05:33:52,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2021-11-03 05:33:52,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 293 states have (on average 1.2218430034129693) internal successors, (358), 298 states have internal predecessors, (358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:52,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 358 transitions. [2021-11-03 05:33:52,546 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 358 transitions. Word has length 105 [2021-11-03 05:33:52,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:52,547 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 358 transitions. [2021-11-03 05:33:52,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:52,547 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 358 transitions. [2021-11-03 05:33:52,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-03 05:33:52,548 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:52,548 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:52,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:52,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:52,758 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)] === [2021-11-03 05:33:52,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:52,758 INFO L85 PathProgramCache]: Analyzing trace with hash -383990624, now seen corresponding path program 2 times [2021-11-03 05:33:52,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:52,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713380036] [2021-11-03 05:33:52,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:52,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:52,778 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:52,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1772592640] [2021-11-03 05:33:52,778 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:33:52,779 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:52,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:52,780 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) [2021-11-03 05:33:52,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 05:33:52,904 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:33:52,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:33:52,907 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:33:52,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:53,075 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:33:53,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:53,287 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-03 05:33:53,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:53,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713380036] [2021-11-03 05:33:53,287 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:53,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1772592640] [2021-11-03 05:33:53,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1772592640] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:33:53,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:33:53,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 05:33:53,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498730596] [2021-11-03 05:33:53,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:33:53,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:33:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:33:53,289 INFO L87 Difference]: Start difference. First operand 299 states and 358 transitions. Second operand has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:53,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:53,796 INFO L93 Difference]: Finished difference Result 562 states and 687 transitions. [2021-11-03 05:33:53,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:33:53,796 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 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 111 [2021-11-03 05:33:53,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:53,797 INFO L225 Difference]: With dead ends: 562 [2021-11-03 05:33:53,797 INFO L226 Difference]: Without dead ends: 311 [2021-11-03 05:33:53,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.94ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:33:53,798 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 384.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.81ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 483.16ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:53,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.81ms Time], IncrementalHoareTripleChecker [38 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 483.16ms Time] [2021-11-03 05:33:53,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2021-11-03 05:33:53,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 311. [2021-11-03 05:33:53,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 305 states have (on average 1.2131147540983607) internal successors, (370), 310 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 370 transitions. [2021-11-03 05:33:53,806 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 370 transitions. Word has length 111 [2021-11-03 05:33:53,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:53,806 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 370 transitions. [2021-11-03 05:33:53,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.5) internal successors, (114), 12 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:53,806 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 370 transitions. [2021-11-03 05:33:53,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-03 05:33:53,807 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:53,807 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:53,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:54,008 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,SelfDestructingSolverStorable9 [2021-11-03 05:33:54,008 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)] === [2021-11-03 05:33:54,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:54,008 INFO L85 PathProgramCache]: Analyzing trace with hash 562679104, now seen corresponding path program 3 times [2021-11-03 05:33:54,009 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:54,009 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551664336] [2021-11-03 05:33:54,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:54,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:54,022 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:54,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [766493611] [2021-11-03 05:33:54,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:33:54,022 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:54,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:54,023 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) [2021-11-03 05:33:54,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 05:33:54,153 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 05:33:54,153 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:33:54,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:33:54,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-11-03 05:33:54,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:33:54,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:54,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551664336] [2021-11-03 05:33:54,353 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:54,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766493611] [2021-11-03 05:33:54,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766493611] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:33:54,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:33:54,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:33:54,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414605358] [2021-11-03 05:33:54,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:33:54,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:54,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:33:54,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:33:54,354 INFO L87 Difference]: Start difference. First operand 311 states and 370 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:54,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:54,666 INFO L93 Difference]: Finished difference Result 514 states and 611 transitions. [2021-11-03 05:33:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:33:54,676 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 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 123 [2021-11-03 05:33:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:54,677 INFO L225 Difference]: With dead ends: 514 [2021-11-03 05:33:54,677 INFO L226 Difference]: Without dead ends: 251 [2021-11-03 05:33:54,678 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.84ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:33:54,678 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 308 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.52ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 292.78ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:54,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 0 Invalid, 315 Unknown, 0 Unchecked, 1.52ms Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 292.78ms Time] [2021-11-03 05:33:54,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-11-03 05:33:54,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-11-03 05:33:54,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 245 states have (on average 1.1918367346938776) internal successors, (292), 250 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 292 transitions. [2021-11-03 05:33:54,684 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 292 transitions. Word has length 123 [2021-11-03 05:33:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:54,684 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 292 transitions. [2021-11-03 05:33:54,685 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 292 transitions. [2021-11-03 05:33:54,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-03 05:33:54,686 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:54,686 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:54,704 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:54,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:54,904 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)] === [2021-11-03 05:33:54,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:54,904 INFO L85 PathProgramCache]: Analyzing trace with hash 455085018, now seen corresponding path program 1 times [2021-11-03 05:33:54,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:54,904 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975682555] [2021-11-03 05:33:54,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:54,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:54,917 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:54,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1165093096] [2021-11-03 05:33:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:54,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:54,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:54,918 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) [2021-11-03 05:33:54,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:33:55,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:33:55,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:33:55,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 05:33:55,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:55,647 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2021-11-03 05:33:55,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:55,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975682555] [2021-11-03 05:33:55,648 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:55,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1165093096] [2021-11-03 05:33:55,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1165093096] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:33:55,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:33:55,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-03 05:33:55,648 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873856811] [2021-11-03 05:33:55,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-03 05:33:55,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:55,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-03 05:33:55,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:33:55,649 INFO L87 Difference]: Start difference. First operand 251 states and 292 transitions. Second operand has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:56,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:56,192 INFO L93 Difference]: Finished difference Result 465 states and 565 transitions. [2021-11-03 05:33:56,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 05:33:56,193 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-11-03 05:33:56,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:56,194 INFO L225 Difference]: With dead ends: 465 [2021-11-03 05:33:56,194 INFO L226 Difference]: Without dead ends: 275 [2021-11-03 05:33:56,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 230.32ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:33:56,195 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 415.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.75ms SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 516.26ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:56,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 763 Unknown, 0 Unchecked, 1.75ms Time], IncrementalHoareTripleChecker [97 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 516.26ms Time] [2021-11-03 05:33:56,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2021-11-03 05:33:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2021-11-03 05:33:56,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.174721189591078) internal successors, (316), 274 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:56,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 316 transitions. [2021-11-03 05:33:56,209 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 316 transitions. Word has length 130 [2021-11-03 05:33:56,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:56,209 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 316 transitions. [2021-11-03 05:33:56,209 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.541666666666667) internal successors, (133), 24 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:56,209 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 316 transitions. [2021-11-03 05:33:56,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2021-11-03 05:33:56,210 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:56,210 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:56,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:33:56,419 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,SelfDestructingSolverStorable11 [2021-11-03 05:33:56,419 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)] === [2021-11-03 05:33:56,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:56,420 INFO L85 PathProgramCache]: Analyzing trace with hash -535721318, now seen corresponding path program 2 times [2021-11-03 05:33:56,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:56,420 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662919051] [2021-11-03 05:33:56,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:56,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:56,437 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:56,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1644943595] [2021-11-03 05:33:56,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:33:56,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:56,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:56,439 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) [2021-11-03 05:33:56,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 05:33:56,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:33:56,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:33:56,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 05:33:56,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:33:57,130 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-03 05:33:57,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:33:58,035 INFO L134 CoverageAnalysis]: Checked inductivity of 508 backedges. 2 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-11-03 05:33:58,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:33:58,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662919051] [2021-11-03 05:33:58,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:33:58,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1644943595] [2021-11-03 05:33:58,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1644943595] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:33:58,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:33:58,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2021-11-03 05:33:58,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234131] [2021-11-03 05:33:58,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-03 05:33:58,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:33:58,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-03 05:33:58,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 05:33:58,038 INFO L87 Difference]: Start difference. First operand 275 states and 316 transitions. Second operand has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:59,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:33:59,132 INFO L93 Difference]: Finished difference Result 521 states and 641 transitions. [2021-11-03 05:33:59,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-03 05:33:59,132 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 0 states have call successors, (0), 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 154 [2021-11-03 05:33:59,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:33:59,133 INFO L225 Difference]: With dead ends: 521 [2021-11-03 05:33:59,133 INFO L226 Difference]: Without dead ends: 319 [2021-11-03 05:33:59,134 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 866.77ms TimeCoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 05:33:59,135 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1124 mSolverCounterSat, 205 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 847.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.55ms SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 1124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1030.72ms IncrementalHoareTripleChecker+Time [2021-11-03 05:33:59,135 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1329 Unknown, 0 Unchecked, 3.55ms Time], IncrementalHoareTripleChecker [205 Valid, 1124 Invalid, 0 Unknown, 0 Unchecked, 1030.72ms Time] [2021-11-03 05:33:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2021-11-03 05:33:59,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2021-11-03 05:33:59,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 313 states have (on average 1.1501597444089458) internal successors, (360), 318 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:59,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 360 transitions. [2021-11-03 05:33:59,142 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 360 transitions. Word has length 154 [2021-11-03 05:33:59,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:33:59,142 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 360 transitions. [2021-11-03 05:33:59,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 3.2708333333333335) internal successors, (157), 48 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:33:59,142 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 360 transitions. [2021-11-03 05:33:59,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-11-03 05:33:59,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:33:59,144 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:33:59,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-03 05:33:59,359 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,SelfDestructingSolverStorable12 [2021-11-03 05:33:59,359 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)] === [2021-11-03 05:33:59,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:33:59,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1925066490, now seen corresponding path program 3 times [2021-11-03 05:33:59,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:33:59,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546273103] [2021-11-03 05:33:59,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:33:59,360 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:33:59,370 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:33:59,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1930412035] [2021-11-03 05:33:59,370 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:33:59,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:33:59,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:33:59,372 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) [2021-11-03 05:33:59,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process Killed by 15