./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 00:16:57,926 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 00:16:57,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 00:16:57,978 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 00:16:57,979 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 00:16:57,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 00:16:57,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 00:16:57,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 00:16:57,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 00:16:57,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 00:16:57,992 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 00:16:57,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 00:16:57,994 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 00:16:57,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 00:16:57,997 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 00:16:58,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 00:16:58,001 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 00:16:58,002 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 00:16:58,004 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 00:16:58,010 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 00:16:58,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 00:16:58,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 00:16:58,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 00:16:58,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 00:16:58,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 00:16:58,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 00:16:58,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 00:16:58,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 00:16:58,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 00:16:58,023 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 00:16:58,024 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 00:16:58,024 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 00:16:58,026 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 00:16:58,027 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 00:16:58,028 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 00:16:58,028 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 00:16:58,029 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 00:16:58,029 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 00:16:58,029 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 00:16:58,030 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 00:16:58,031 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 00:16:58,032 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-03 00:16:58,061 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 00:16:58,062 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 00:16:58,062 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 00:16:58,068 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 00:16:58,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 00:16:58,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 00:16:58,070 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 00:16:58,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 00:16:58,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 00:16:58,071 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 00:16:58,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 00:16:58,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 00:16:58,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 00:16:58,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 00:16:58,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:16:58,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 00:16:58,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 00:16:58,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 00:16:58,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 00:16:58,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 00:16:58,074 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 00:16:58,074 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 00:16:58,075 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 00:16:58,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 00:16:58,076 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 [2021-11-03 00:16:58,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 00:16:58,296 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 00:16:58,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 00:16:58,299 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 00:16:58,300 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 00:16:58,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 00:16:58,362 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3743037b4/dd9b0bcf80244d04bbc3fa15147be18f/FLAGd75deb1f5 [2021-11-03 00:16:59,093 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 00:16:59,094 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 00:16:59,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3743037b4/dd9b0bcf80244d04bbc3fa15147be18f/FLAGd75deb1f5 [2021-11-03 00:16:59,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3743037b4/dd9b0bcf80244d04bbc3fa15147be18f [2021-11-03 00:16:59,179 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 00:16:59,181 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 00:16:59,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 00:16:59,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 00:16:59,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 00:16:59,187 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:16:59" (1/1) ... [2021-11-03 00:16:59,188 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c4a0fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:16:59, skipping insertion in model container [2021-11-03 00:16:59,189 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 12:16:59" (1/1) ... [2021-11-03 00:16:59,194 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 00:16:59,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 00:17:00,239 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 00:17:00,241 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 00:17:00,242 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 00:17:00,242 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 00:17:00,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:17:00,270 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 00:17:00,575 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2021-11-03 00:17:00,577 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2021-11-03 00:17:00,578 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2021-11-03 00:17:00,578 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/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2021-11-03 00:17:00,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 00:17:00,648 INFO L208 MainTranslator]: Completed translation [2021-11-03 00:17:00,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00 WrapperNode [2021-11-03 00:17:00,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 00:17:00,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 00:17:00,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 00:17:00,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 00:17:00,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:00,729 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:00,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 00:17:00,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 00:17:00,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 00:17:00,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 00:17:00,944 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:00,944 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:00,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:00,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:01,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:01,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:01,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:01,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 00:17:01,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 00:17:01,214 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 00:17:01,214 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 00:17:01,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (1/1) ... [2021-11-03 00:17:01,229 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 00:17:01,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 00:17:01,293 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 00:17:01,379 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 00:17:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 00:17:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 00:17:01,417 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 00:17:01,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 00:17:01,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 00:17:01,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 00:17:03,224 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-03 00:17:03,225 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-03 00:17:03,225 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-03 00:17:03,225 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-03 00:17:03,225 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,226 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-03 00:17:03,226 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,226 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,226 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,227 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,227 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-03 00:17:03,245 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 00:17:03,245 INFO L299 CfgBuilder]: Removed 1490 assume(true) statements. [2021-11-03 00:17:03,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:17:03 BoogieIcfgContainer [2021-11-03 00:17:03,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 00:17:03,250 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 00:17:03,250 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 00:17:03,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 00:17:03,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 12:16:59" (1/3) ... [2021-11-03 00:17:03,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38880254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:17:03, skipping insertion in model container [2021-11-03 00:17:03,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 12:17:00" (2/3) ... [2021-11-03 00:17:03,255 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38880254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 12:17:03, skipping insertion in model container [2021-11-03 00:17:03,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 12:17:03" (3/3) ... [2021-11-03 00:17:03,256 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-03 00:17:03,260 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 00:17:03,260 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-03 00:17:03,302 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 00:17:03,307 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 00:17:03,307 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-03 00:17:03,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 1616 states, 1595 states have (on average 1.3598746081504702) internal successors, (2169), 1615 states have internal predecessors, (2169), 0 states have call successors, (0), 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 00:17:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-03 00:17:03,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:03,365 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:17:03,366 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:03,370 INFO L85 PathProgramCache]: Analyzing trace with hash 612313430, now seen corresponding path program 1 times [2021-11-03 00:17:03,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:03,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420488612] [2021-11-03 00:17:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:03,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:03,939 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 00:17:03,940 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:03,940 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420488612] [2021-11-03 00:17:03,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420488612] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:03,941 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:03,941 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:03,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519066836] [2021-11-03 00:17:03,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:03,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:03,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:03,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:03,975 INFO L87 Difference]: Start difference. First operand has 1616 states, 1595 states have (on average 1.3598746081504702) internal successors, (2169), 1615 states have internal predecessors, (2169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 00:17:10,875 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:11,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:11,231 INFO L93 Difference]: Finished difference Result 4234 states and 5721 transitions. [2021-11-03 00:17:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:11,233 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2021-11-03 00:17:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:11,256 INFO L225 Difference]: With dead ends: 4234 [2021-11-03 00:17:11,256 INFO L226 Difference]: Without dead ends: 2634 [2021-11-03 00:17:11,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:11,268 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1704 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 3968 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6222.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1704 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 3977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 18.44ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 3968 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7030.95ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:11,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1704 Valid, 289 Invalid, 3977 Unknown, 0 Unchecked, 18.44ms Time], IncrementalHoareTripleChecker [8 Valid, 3968 Invalid, 1 Unknown, 0 Unchecked, 7030.95ms Time] [2021-11-03 00:17:11,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2021-11-03 00:17:11,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2610. [2021-11-03 00:17:11,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 2589 states have (on average 1.2974121282348396) internal successors, (3359), 2609 states have internal predecessors, (3359), 0 states have call successors, (0), 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 00:17:11,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3359 transitions. [2021-11-03 00:17:11,407 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3359 transitions. Word has length 93 [2021-11-03 00:17:11,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:11,409 INFO L470 AbstractCegarLoop]: Abstraction has 2610 states and 3359 transitions. [2021-11-03 00:17:11,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 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 00:17:11,411 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3359 transitions. [2021-11-03 00:17:11,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-03 00:17:11,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:11,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:17:11,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 00:17:11,416 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:11,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:11,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1275313139, now seen corresponding path program 1 times [2021-11-03 00:17:11,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:11,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773551601] [2021-11-03 00:17:11,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:11,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:11,581 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 00:17:11,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:11,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773551601] [2021-11-03 00:17:11,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773551601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:11,583 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:11,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:11,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294745081] [2021-11-03 00:17:11,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:11,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:11,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:11,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:11,586 INFO L87 Difference]: Start difference. First operand 2610 states and 3359 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 00:17:15,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:17,169 INFO L93 Difference]: Finished difference Result 7066 states and 9181 transitions. [2021-11-03 00:17:17,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:17,170 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2021-11-03 00:17:17,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:17,187 INFO L225 Difference]: With dead ends: 7066 [2021-11-03 00:17:17,187 INFO L226 Difference]: Without dead ends: 4652 [2021-11-03 00:17:17,192 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:17,193 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1378 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 3699 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4747.60ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1378 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 9.08ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3699 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5393.88ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:17,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1378 Valid, 0 Invalid, 3713 Unknown, 0 Unchecked, 9.08ms Time], IncrementalHoareTripleChecker [13 Valid, 3699 Invalid, 1 Unknown, 0 Unchecked, 5393.88ms Time] [2021-11-03 00:17:17,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4652 states. [2021-11-03 00:17:17,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4652 to 4552. [2021-11-03 00:17:17,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4552 states, 4531 states have (on average 1.3098653718825866) internal successors, (5935), 4551 states have internal predecessors, (5935), 0 states have call successors, (0), 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 00:17:17,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4552 states to 4552 states and 5935 transitions. [2021-11-03 00:17:17,336 INFO L78 Accepts]: Start accepts. Automaton has 4552 states and 5935 transitions. Word has length 119 [2021-11-03 00:17:17,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:17,343 INFO L470 AbstractCegarLoop]: Abstraction has 4552 states and 5935 transitions. [2021-11-03 00:17:17,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 00:17:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4552 states and 5935 transitions. [2021-11-03 00:17:17,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-03 00:17:17,347 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:17,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:17:17,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 00:17:17,348 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:17,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:17,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2112429701, now seen corresponding path program 1 times [2021-11-03 00:17:17,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:17,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729400407] [2021-11-03 00:17:17,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:17,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:17,511 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 00:17:17,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:17,512 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729400407] [2021-11-03 00:17:17,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729400407] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:17,512 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:17,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:17,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973733727] [2021-11-03 00:17:17,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:17,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:17,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:17,515 INFO L87 Difference]: Start difference. First operand 4552 states and 5935 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 00:17:20,767 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:22,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:22,756 INFO L93 Difference]: Finished difference Result 10521 states and 13805 transitions. [2021-11-03 00:17:22,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:22,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2021-11-03 00:17:22,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:22,781 INFO L225 Difference]: With dead ends: 10521 [2021-11-03 00:17:22,782 INFO L226 Difference]: Without dead ends: 6165 [2021-11-03 00:17:22,790 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.75ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:22,791 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1406 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 3939 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4427.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.24ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 3939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5042.85ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:22,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1406 Valid, 0 Invalid, 3952 Unknown, 0 Unchecked, 7.24ms Time], IncrementalHoareTripleChecker [13 Valid, 3939 Invalid, 0 Unknown, 0 Unchecked, 5042.85ms Time] [2021-11-03 00:17:22,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6165 states. [2021-11-03 00:17:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6165 to 6077. [2021-11-03 00:17:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6077 states, 6056 states have (on average 1.3168758256274768) internal successors, (7975), 6076 states have internal predecessors, (7975), 0 states have call successors, (0), 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 00:17:22,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6077 states to 6077 states and 7975 transitions. [2021-11-03 00:17:22,937 INFO L78 Accepts]: Start accepts. Automaton has 6077 states and 7975 transitions. Word has length 120 [2021-11-03 00:17:22,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:22,937 INFO L470 AbstractCegarLoop]: Abstraction has 6077 states and 7975 transitions. [2021-11-03 00:17:22,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 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 00:17:22,938 INFO L276 IsEmpty]: Start isEmpty. Operand 6077 states and 7975 transitions. [2021-11-03 00:17:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-03 00:17:22,940 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:22,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 00:17:22,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 00:17:22,941 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:22,941 INFO L85 PathProgramCache]: Analyzing trace with hash -567235804, now seen corresponding path program 1 times [2021-11-03 00:17:22,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:22,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395598641] [2021-11-03 00:17:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:22,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:23,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:23,102 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 00:17:23,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:23,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395598641] [2021-11-03 00:17:23,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395598641] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:23,103 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:23,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:23,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558970803] [2021-11-03 00:17:23,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:23,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:23,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:23,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:23,106 INFO L87 Difference]: Start difference. First operand 6077 states and 7975 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:26,635 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:28,653 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:29,413 INFO L93 Difference]: Finished difference Result 12162 states and 15940 transitions. [2021-11-03 00:17:29,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:29,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-11-03 00:17:29,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:29,432 INFO L225 Difference]: With dead ends: 12162 [2021-11-03 00:17:29,433 INFO L226 Difference]: Without dead ends: 6281 [2021-11-03 00:17:29,442 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:29,443 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 816 mSDsluCounter, 1803 mSDsCounter, 0 mSdLazyCounter, 4146 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5620.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.36ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 4146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6155.59ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:29,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [816 Valid, 0 Invalid, 4160 Unknown, 0 Unchecked, 4.36ms Time], IncrementalHoareTripleChecker [13 Valid, 4146 Invalid, 1 Unknown, 0 Unchecked, 6155.59ms Time] [2021-11-03 00:17:29,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6281 states. [2021-11-03 00:17:29,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6281 to 6207. [2021-11-03 00:17:29,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6207 states, 6186 states have (on average 1.3042353701907534) internal successors, (8068), 6206 states have internal predecessors, (8068), 0 states have call successors, (0), 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 00:17:29,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6207 states to 6207 states and 8068 transitions. [2021-11-03 00:17:29,571 INFO L78 Accepts]: Start accepts. Automaton has 6207 states and 8068 transitions. Word has length 121 [2021-11-03 00:17:29,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:29,571 INFO L470 AbstractCegarLoop]: Abstraction has 6207 states and 8068 transitions. [2021-11-03 00:17:29,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 3 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:29,572 INFO L276 IsEmpty]: Start isEmpty. Operand 6207 states and 8068 transitions. [2021-11-03 00:17:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 00:17:29,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:29,575 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:29,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 00:17:29,575 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash -629602836, now seen corresponding path program 1 times [2021-11-03 00:17:29,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:29,577 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737784289] [2021-11-03 00:17:29,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:29,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:29,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:17:29,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:29,689 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737784289] [2021-11-03 00:17:29,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737784289] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:29,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:29,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:29,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174710827] [2021-11-03 00:17:29,690 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:29,690 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:29,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:29,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:29,691 INFO L87 Difference]: Start difference. First operand 6207 states and 8068 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 00:17:34,349 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:36,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:36,983 INFO L93 Difference]: Finished difference Result 17413 states and 22783 transitions. [2021-11-03 00:17:36,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:17:36,983 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-03 00:17:36,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:37,014 INFO L225 Difference]: With dead ends: 17413 [2021-11-03 00:17:37,015 INFO L226 Difference]: Without dead ends: 11615 [2021-11-03 00:17:37,027 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.64ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:37,028 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1507 mSDsluCounter, 1822 mSDsCounter, 0 mSdLazyCounter, 5214 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6447.74ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.59ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 5214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7092.69ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:37,029 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1507 Valid, 0 Invalid, 5222 Unknown, 0 Unchecked, 4.59ms Time], IncrementalHoareTripleChecker [7 Valid, 5214 Invalid, 1 Unknown, 0 Unchecked, 7092.69ms Time] [2021-11-03 00:17:37,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11615 states. [2021-11-03 00:17:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11615 to 11575. [2021-11-03 00:17:37,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11575 states, 11554 states have (on average 1.308983901679072) internal successors, (15124), 11574 states have internal predecessors, (15124), 0 states have call successors, (0), 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 00:17:37,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11575 states to 11575 states and 15124 transitions. [2021-11-03 00:17:37,347 INFO L78 Accepts]: Start accepts. Automaton has 11575 states and 15124 transitions. Word has length 126 [2021-11-03 00:17:37,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:37,349 INFO L470 AbstractCegarLoop]: Abstraction has 11575 states and 15124 transitions. [2021-11-03 00:17:37,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 00:17:37,350 INFO L276 IsEmpty]: Start isEmpty. Operand 11575 states and 15124 transitions. [2021-11-03 00:17:37,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-03 00:17:37,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:37,352 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:37,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-03 00:17:37,353 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:37,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:37,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1671219754, now seen corresponding path program 1 times [2021-11-03 00:17:37,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:37,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753648842] [2021-11-03 00:17:37,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:37,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:17:37,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:37,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753648842] [2021-11-03 00:17:37,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753648842] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:37,538 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:37,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:17:37,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561202392] [2021-11-03 00:17:37,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:17:37,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:37,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:17:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:17:37,540 INFO L87 Difference]: Start difference. First operand 11575 states and 15124 transitions. Second operand has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:41,784 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:43,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:43,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:43,828 INFO L93 Difference]: Finished difference Result 11575 states and 15124 transitions. [2021-11-03 00:17:43,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:17:43,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 126 [2021-11-03 00:17:43,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:43,852 INFO L225 Difference]: With dead ends: 11575 [2021-11-03 00:17:43,853 INFO L226 Difference]: Without dead ends: 11569 [2021-11-03 00:17:43,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.98ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:17:43,856 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1533 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 3884 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5524.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.25ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3884 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6044.67ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:43,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 0 Invalid, 3899 Unknown, 0 Unchecked, 8.25ms Time], IncrementalHoareTripleChecker [14 Valid, 3884 Invalid, 1 Unknown, 0 Unchecked, 6044.67ms Time] [2021-11-03 00:17:43,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11569 states. [2021-11-03 00:17:44,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11569 to 11569. [2021-11-03 00:17:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11569 states, 11551 states have (on average 1.3088044325166652) internal successors, (15118), 11568 states have internal predecessors, (15118), 0 states have call successors, (0), 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 00:17:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11569 states to 11569 states and 15118 transitions. [2021-11-03 00:17:44,080 INFO L78 Accepts]: Start accepts. Automaton has 11569 states and 15118 transitions. Word has length 126 [2021-11-03 00:17:44,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:44,080 INFO L470 AbstractCegarLoop]: Abstraction has 11569 states and 15118 transitions. [2021-11-03 00:17:44,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.75) internal successors, (115), 4 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11569 states and 15118 transitions. [2021-11-03 00:17:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-03 00:17:44,083 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:44,083 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:44,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-03 00:17:44,083 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:44,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:44,084 INFO L85 PathProgramCache]: Analyzing trace with hash -275429363, now seen corresponding path program 1 times [2021-11-03 00:17:44,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:44,084 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118547713] [2021-11-03 00:17:44,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:44,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:44,237 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:17:44,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:44,237 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118547713] [2021-11-03 00:17:44,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118547713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:44,238 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:44,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:17:44,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268029334] [2021-11-03 00:17:44,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:17:44,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:44,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:17:44,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:17:44,239 INFO L87 Difference]: Start difference. First operand 11569 states and 15118 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:49,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:17:49,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:49,160 INFO L93 Difference]: Finished difference Result 11569 states and 15118 transitions. [2021-11-03 00:17:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:17:49,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-11-03 00:17:49,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:49,183 INFO L225 Difference]: With dead ends: 11569 [2021-11-03 00:17:49,184 INFO L226 Difference]: Without dead ends: 11563 [2021-11-03 00:17:49,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.14ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:17:49,188 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1728 mSDsluCounter, 1824 mSDsCounter, 0 mSdLazyCounter, 3674 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4315.89ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1728 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.13ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 3674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4729.66ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:49,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1728 Valid, 0 Invalid, 3686 Unknown, 0 Unchecked, 7.13ms Time], IncrementalHoareTripleChecker [11 Valid, 3674 Invalid, 1 Unknown, 0 Unchecked, 4729.66ms Time] [2021-11-03 00:17:49,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11563 states. [2021-11-03 00:17:49,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11563 to 11563. [2021-11-03 00:17:49,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11563 states, 11548 states have (on average 1.308624870107378) internal successors, (15112), 11562 states have internal predecessors, (15112), 0 states have call successors, (0), 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 00:17:49,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11563 states to 11563 states and 15112 transitions. [2021-11-03 00:17:49,429 INFO L78 Accepts]: Start accepts. Automaton has 11563 states and 15112 transitions. Word has length 128 [2021-11-03 00:17:49,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:49,430 INFO L470 AbstractCegarLoop]: Abstraction has 11563 states and 15112 transitions. [2021-11-03 00:17:49,430 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 00:17:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 11563 states and 15112 transitions. [2021-11-03 00:17:49,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-03 00:17:49,433 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:49,433 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:49,433 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-03 00:17:49,433 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:49,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:49,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1600510576, now seen corresponding path program 1 times [2021-11-03 00:17:49,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:49,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376982545] [2021-11-03 00:17:49,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:49,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:49,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:49,646 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-03 00:17:49,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:49,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376982545] [2021-11-03 00:17:49,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376982545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:49,647 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:49,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 00:17:49,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283762093] [2021-11-03 00:17:49,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 00:17:49,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:49,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 00:17:49,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 00:17:49,649 INFO L87 Difference]: Start difference. First operand 11563 states and 15112 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 00:17:52,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:17:52,589 INFO L93 Difference]: Finished difference Result 11563 states and 15112 transitions. [2021-11-03 00:17:52,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 00:17:52,591 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 00:17:52,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:17:52,612 INFO L225 Difference]: With dead ends: 11563 [2021-11-03 00:17:52,612 INFO L226 Difference]: Without dead ends: 11517 [2021-11-03 00:17:52,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.27ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 00:17:52,617 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1717 mSDsluCounter, 1821 mSDsCounter, 0 mSdLazyCounter, 3663 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2389.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1717 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.73ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 3663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2777.20ms IncrementalHoareTripleChecker+Time [2021-11-03 00:17:52,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1717 Valid, 0 Invalid, 3677 Unknown, 0 Unchecked, 5.73ms Time], IncrementalHoareTripleChecker [14 Valid, 3663 Invalid, 0 Unknown, 0 Unchecked, 2777.20ms Time] [2021-11-03 00:17:52,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11517 states. [2021-11-03 00:17:52,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11517 to 11517. [2021-11-03 00:17:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11517 states, 11505 states have (on average 1.3076923076923077) internal successors, (15045), 11516 states have internal predecessors, (15045), 0 states have call successors, (0), 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 00:17:52,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11517 states to 11517 states and 15045 transitions. [2021-11-03 00:17:52,928 INFO L78 Accepts]: Start accepts. Automaton has 11517 states and 15045 transitions. Word has length 130 [2021-11-03 00:17:52,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:17:52,929 INFO L470 AbstractCegarLoop]: Abstraction has 11517 states and 15045 transitions. [2021-11-03 00:17:52,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 0 states have call successors, (0), 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 00:17:52,929 INFO L276 IsEmpty]: Start isEmpty. Operand 11517 states and 15045 transitions. [2021-11-03 00:17:52,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-03 00:17:52,942 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:17:52,943 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:17:52,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-03 00:17:52,943 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:17:52,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:17:52,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1454743280, now seen corresponding path program 1 times [2021-11-03 00:17:52,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:17:52,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155792070] [2021-11-03 00:17:52,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:17:52,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:17:52,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:17:53,043 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 00:17:53,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:17:53,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155792070] [2021-11-03 00:17:53,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155792070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:17:53,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:17:53,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:17:53,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734336105] [2021-11-03 00:17:53,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:17:53,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:17:53,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:17:53,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:17:53,046 INFO L87 Difference]: Start difference. First operand 11517 states and 15045 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 00:17:58,750 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:00,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:00,707 INFO L93 Difference]: Finished difference Result 28041 states and 36729 transitions. [2021-11-03 00:18:00,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:00,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2021-11-03 00:18:00,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:00,740 INFO L225 Difference]: With dead ends: 28041 [2021-11-03 00:18:00,741 INFO L226 Difference]: Without dead ends: 16649 [2021-11-03 00:18:00,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:00,763 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1505 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 5104 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6654.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.74ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 5104 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7351.25ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:00,763 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1505 Valid, 0 Invalid, 5110 Unknown, 0 Unchecked, 5.74ms Time], IncrementalHoareTripleChecker [5 Valid, 5104 Invalid, 1 Unknown, 0 Unchecked, 7351.25ms Time] [2021-11-03 00:18:00,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16649 states. [2021-11-03 00:18:01,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16649 to 16625. [2021-11-03 00:18:01,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16625 states, 16613 states have (on average 1.3102991633058447) internal successors, (21768), 16624 states have internal predecessors, (21768), 0 states have call successors, (0), 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 00:18:01,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16625 states to 16625 states and 21768 transitions. [2021-11-03 00:18:01,143 INFO L78 Accepts]: Start accepts. Automaton has 16625 states and 21768 transitions. Word has length 168 [2021-11-03 00:18:01,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:01,144 INFO L470 AbstractCegarLoop]: Abstraction has 16625 states and 21768 transitions. [2021-11-03 00:18:01,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 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 00:18:01,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16625 states and 21768 transitions. [2021-11-03 00:18:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-03 00:18:01,152 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:01,152 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:01,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-03 00:18:01,153 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:01,153 INFO L85 PathProgramCache]: Analyzing trace with hash 699024311, now seen corresponding path program 1 times [2021-11-03 00:18:01,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:01,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194542136] [2021-11-03 00:18:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:01,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:01,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-03 00:18:01,249 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:01,249 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194542136] [2021-11-03 00:18:01,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194542136] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:01,249 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:01,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:01,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380158378] [2021-11-03 00:18:01,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:01,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:01,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:01,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:01,251 INFO L87 Difference]: Start difference. First operand 16625 states and 21768 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 00:18:07,902 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:09,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:09,478 INFO L93 Difference]: Finished difference Result 38209 states and 50087 transitions. [2021-11-03 00:18:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:09,479 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 184 [2021-11-03 00:18:09,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:09,511 INFO L225 Difference]: With dead ends: 38209 [2021-11-03 00:18:09,511 INFO L226 Difference]: Without dead ends: 21757 [2021-11-03 00:18:09,531 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:09,532 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1503 mSDsluCounter, 1771 mSDsCounter, 0 mSdLazyCounter, 5098 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7034.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 5099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.76ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5098 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7733.86ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:09,532 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1503 Valid, 0 Invalid, 5099 Unknown, 0 Unchecked, 5.76ms Time], IncrementalHoareTripleChecker [0 Valid, 5098 Invalid, 1 Unknown, 0 Unchecked, 7733.86ms Time] [2021-11-03 00:18:09,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21757 states. [2021-11-03 00:18:09,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21757 to 16625. [2021-11-03 00:18:09,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16625 states, 16613 states have (on average 1.3102389694817311) internal successors, (21767), 16624 states have internal predecessors, (21767), 0 states have call successors, (0), 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 00:18:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16625 states to 16625 states and 21767 transitions. [2021-11-03 00:18:09,952 INFO L78 Accepts]: Start accepts. Automaton has 16625 states and 21767 transitions. Word has length 184 [2021-11-03 00:18:09,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:09,952 INFO L470 AbstractCegarLoop]: Abstraction has 16625 states and 21767 transitions. [2021-11-03 00:18:09,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 00:18:09,952 INFO L276 IsEmpty]: Start isEmpty. Operand 16625 states and 21767 transitions. [2021-11-03 00:18:09,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-03 00:18:09,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:09,962 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:09,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-03 00:18:09,962 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:09,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:09,963 INFO L85 PathProgramCache]: Analyzing trace with hash 900848245, now seen corresponding path program 1 times [2021-11-03 00:18:09,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:09,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861595853] [2021-11-03 00:18:09,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:09,964 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:10,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:10,104 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 00:18:10,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:10,105 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861595853] [2021-11-03 00:18:10,105 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861595853] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:10,105 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:10,105 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:10,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068618191] [2021-11-03 00:18:10,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:10,106 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:10,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:10,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:10,107 INFO L87 Difference]: Start difference. First operand 16625 states and 21767 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 00:18:14,788 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:15,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:15,696 INFO L93 Difference]: Finished difference Result 39981 states and 52528 transitions. [2021-11-03 00:18:15,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:15,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 184 [2021-11-03 00:18:15,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:15,735 INFO L225 Difference]: With dead ends: 39981 [2021-11-03 00:18:15,735 INFO L226 Difference]: Without dead ends: 23765 [2021-11-03 00:18:15,760 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 00:18:15,761 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1332 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 3893 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4469.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1332 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.05ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3893 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5045.05ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:15,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1332 Valid, 0 Invalid, 3903 Unknown, 0 Unchecked, 5.05ms Time], IncrementalHoareTripleChecker [9 Valid, 3893 Invalid, 1 Unknown, 0 Unchecked, 5045.05ms Time] [2021-11-03 00:18:15,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23765 states. [2021-11-03 00:18:16,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23765 to 23691. [2021-11-03 00:18:16,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23691 states, 23679 states have (on average 1.3126821234004815) internal successors, (31083), 23690 states have internal predecessors, (31083), 0 states have call successors, (0), 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 00:18:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23691 states to 23691 states and 31083 transitions. [2021-11-03 00:18:16,377 INFO L78 Accepts]: Start accepts. Automaton has 23691 states and 31083 transitions. Word has length 184 [2021-11-03 00:18:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:16,378 INFO L470 AbstractCegarLoop]: Abstraction has 23691 states and 31083 transitions. [2021-11-03 00:18:16,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 0 states have call successors, (0), 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 00:18:16,378 INFO L276 IsEmpty]: Start isEmpty. Operand 23691 states and 31083 transitions. [2021-11-03 00:18:16,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-03 00:18:16,385 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:16,385 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:16,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-03 00:18:16,386 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:16,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:16,386 INFO L85 PathProgramCache]: Analyzing trace with hash -835939527, now seen corresponding path program 1 times [2021-11-03 00:18:16,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:16,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367434013] [2021-11-03 00:18:16,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:16,387 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:16,502 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 00:18:16,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:16,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367434013] [2021-11-03 00:18:16,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367434013] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:16,503 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:16,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:16,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872977830] [2021-11-03 00:18:16,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:16,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:16,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:16,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:16,504 INFO L87 Difference]: Start difference. First operand 23691 states and 31083 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 00:18:21,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:21,282 INFO L93 Difference]: Finished difference Result 57265 states and 75395 transitions. [2021-11-03 00:18:21,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:21,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 185 [2021-11-03 00:18:21,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:21,341 INFO L225 Difference]: With dead ends: 57265 [2021-11-03 00:18:21,341 INFO L226 Difference]: Without dead ends: 33983 [2021-11-03 00:18:21,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.65ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:21,367 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1362 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 3901 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3395.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1362 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.82ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3946.08ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:21,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1362 Valid, 0 Invalid, 3910 Unknown, 0 Unchecked, 4.82ms Time], IncrementalHoareTripleChecker [9 Valid, 3901 Invalid, 0 Unknown, 0 Unchecked, 3946.08ms Time] [2021-11-03 00:18:21,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33983 states. [2021-11-03 00:18:21,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33983 to 33953. [2021-11-03 00:18:22,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33953 states, 33941 states have (on average 1.314752069768127) internal successors, (44624), 33952 states have internal predecessors, (44624), 0 states have call successors, (0), 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 00:18:22,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33953 states to 33953 states and 44624 transitions. [2021-11-03 00:18:22,050 INFO L78 Accepts]: Start accepts. Automaton has 33953 states and 44624 transitions. Word has length 185 [2021-11-03 00:18:22,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:22,051 INFO L470 AbstractCegarLoop]: Abstraction has 33953 states and 44624 transitions. [2021-11-03 00:18:22,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 00:18:22,051 INFO L276 IsEmpty]: Start isEmpty. Operand 33953 states and 44624 transitions. [2021-11-03 00:18:22,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-03 00:18:22,056 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:22,056 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:22,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-03 00:18:22,057 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:22,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:22,057 INFO L85 PathProgramCache]: Analyzing trace with hash 349253926, now seen corresponding path program 1 times [2021-11-03 00:18:22,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:22,058 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43068328] [2021-11-03 00:18:22,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:22,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:22,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:22,160 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-03 00:18:22,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:22,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43068328] [2021-11-03 00:18:22,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43068328] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:22,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:22,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:22,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867416119] [2021-11-03 00:18:22,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:22,162 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:22,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:22,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:22,162 INFO L87 Difference]: Start difference. First operand 33953 states and 44624 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 00:18:26,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:26,590 INFO L93 Difference]: Finished difference Result 76531 states and 100592 transitions. [2021-11-03 00:18:26,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:26,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 186 [2021-11-03 00:18:26,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:26,655 INFO L225 Difference]: With dead ends: 76531 [2021-11-03 00:18:26,655 INFO L226 Difference]: Without dead ends: 42987 [2021-11-03 00:18:26,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.58ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:26,700 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 771 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3898 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3100.10ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 771 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.39ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 3898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3576.21ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:26,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [771 Valid, 0 Invalid, 3907 Unknown, 0 Unchecked, 4.39ms Time], IncrementalHoareTripleChecker [9 Valid, 3898 Invalid, 0 Unknown, 0 Unchecked, 3576.21ms Time] [2021-11-03 00:18:26,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42987 states. [2021-11-03 00:18:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42987 to 42971. [2021-11-03 00:18:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42971 states, 42959 states have (on average 1.3083870667380526) internal successors, (56207), 42970 states have internal predecessors, (56207), 0 states have call successors, (0), 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 00:18:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42971 states to 42971 states and 56207 transitions. [2021-11-03 00:18:27,672 INFO L78 Accepts]: Start accepts. Automaton has 42971 states and 56207 transitions. Word has length 186 [2021-11-03 00:18:27,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:27,672 INFO L470 AbstractCegarLoop]: Abstraction has 42971 states and 56207 transitions. [2021-11-03 00:18:27,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 00:18:27,672 INFO L276 IsEmpty]: Start isEmpty. Operand 42971 states and 56207 transitions. [2021-11-03 00:18:27,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-03 00:18:27,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:27,680 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:27,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-03 00:18:27,681 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:27,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:27,681 INFO L85 PathProgramCache]: Analyzing trace with hash -665696704, now seen corresponding path program 1 times [2021-11-03 00:18:27,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:27,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507202403] [2021-11-03 00:18:27,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:27,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:27,810 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:18:27,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:27,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507202403] [2021-11-03 00:18:27,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507202403] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:27,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:27,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:27,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723395156] [2021-11-03 00:18:27,812 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:27,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:27,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:27,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:27,813 INFO L87 Difference]: Start difference. First operand 42971 states and 56207 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 00:18:32,474 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:34,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:34,331 INFO L93 Difference]: Finished difference Result 98090 states and 128535 transitions. [2021-11-03 00:18:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:34,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 214 [2021-11-03 00:18:34,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:34,418 INFO L225 Difference]: With dead ends: 98090 [2021-11-03 00:18:34,419 INFO L226 Difference]: Without dead ends: 55324 [2021-11-03 00:18:34,461 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:34,461 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1319 mSDsluCounter, 1744 mSDsCounter, 0 mSdLazyCounter, 4913 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4680.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.21ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4913 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5433.14ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:34,461 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 0 Invalid, 4921 Unknown, 0 Unchecked, 5.21ms Time], IncrementalHoareTripleChecker [7 Valid, 4913 Invalid, 1 Unknown, 0 Unchecked, 5433.14ms Time] [2021-11-03 00:18:34,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55324 states. [2021-11-03 00:18:35,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55324 to 55250. [2021-11-03 00:18:35,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55250 states, 55238 states have (on average 1.3098229479706) internal successors, (72352), 55249 states have internal predecessors, (72352), 0 states have call successors, (0), 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 00:18:35,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55250 states to 55250 states and 72352 transitions. [2021-11-03 00:18:35,842 INFO L78 Accepts]: Start accepts. Automaton has 55250 states and 72352 transitions. Word has length 214 [2021-11-03 00:18:35,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:35,843 INFO L470 AbstractCegarLoop]: Abstraction has 55250 states and 72352 transitions. [2021-11-03 00:18:35,843 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 00:18:35,843 INFO L276 IsEmpty]: Start isEmpty. Operand 55250 states and 72352 transitions. [2021-11-03 00:18:35,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-03 00:18:35,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:35,851 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:35,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-03 00:18:35,851 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:35,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:35,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1579882750, now seen corresponding path program 1 times [2021-11-03 00:18:35,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:35,852 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826237190] [2021-11-03 00:18:35,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:35,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:35,970 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:18:35,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:35,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826237190] [2021-11-03 00:18:35,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826237190] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:35,971 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:35,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:35,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452000850] [2021-11-03 00:18:35,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:35,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:35,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:35,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:35,973 INFO L87 Difference]: Start difference. First operand 55250 states and 72352 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 00:18:41,064 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:42,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:42,961 INFO L93 Difference]: Finished difference Result 122729 states and 160987 transitions. [2021-11-03 00:18:42,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:42,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 214 [2021-11-03 00:18:42,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:43,070 INFO L225 Difference]: With dead ends: 122729 [2021-11-03 00:18:43,071 INFO L226 Difference]: Without dead ends: 67888 [2021-11-03 00:18:43,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.60ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:43,116 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1329 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 4906 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4814.43ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1329 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.59ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5415.44ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:43,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1329 Valid, 0 Invalid, 4917 Unknown, 0 Unchecked, 5.59ms Time], IncrementalHoareTripleChecker [10 Valid, 4906 Invalid, 1 Unknown, 0 Unchecked, 5415.44ms Time] [2021-11-03 00:18:43,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67888 states. [2021-11-03 00:18:44,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67888 to 67790. [2021-11-03 00:18:44,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67790 states, 67778 states have (on average 1.3105284900705243) internal successors, (88825), 67789 states have internal predecessors, (88825), 0 states have call successors, (0), 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 00:18:44,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67790 states to 67790 states and 88825 transitions. [2021-11-03 00:18:44,790 INFO L78 Accepts]: Start accepts. Automaton has 67790 states and 88825 transitions. Word has length 214 [2021-11-03 00:18:44,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:44,790 INFO L470 AbstractCegarLoop]: Abstraction has 67790 states and 88825 transitions. [2021-11-03 00:18:44,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 00:18:44,791 INFO L276 IsEmpty]: Start isEmpty. Operand 67790 states and 88825 transitions. [2021-11-03 00:18:44,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-03 00:18:44,800 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:44,800 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:44,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-03 00:18:44,801 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:44,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash -1187720883, now seen corresponding path program 1 times [2021-11-03 00:18:44,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:44,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143960837] [2021-11-03 00:18:44,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:44,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:18:44,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:44,914 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143960837] [2021-11-03 00:18:44,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143960837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:44,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:44,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:44,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877013737] [2021-11-03 00:18:44,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:44,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:44,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:44,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:44,916 INFO L87 Difference]: Start difference. First operand 67790 states and 88825 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:18:48,664 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:50,684 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:52,453 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:18:53,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:18:53,924 INFO L93 Difference]: Finished difference Result 148894 states and 195056 transitions. [2021-11-03 00:18:53,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:18:53,925 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 217 [2021-11-03 00:18:53,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:18:54,059 INFO L225 Difference]: With dead ends: 148894 [2021-11-03 00:18:54,059 INFO L226 Difference]: Without dead ends: 81113 [2021-11-03 00:18:54,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.62ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:54,126 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 758 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 4354 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6637.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.82ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4354 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7207.15ms IncrementalHoareTripleChecker+Time [2021-11-03 00:18:54,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 0 Invalid, 4362 Unknown, 0 Unchecked, 4.82ms Time], IncrementalHoareTripleChecker [7 Valid, 4354 Invalid, 1 Unknown, 0 Unchecked, 7207.15ms Time] [2021-11-03 00:18:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81113 states. [2021-11-03 00:18:55,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81113 to 81097. [2021-11-03 00:18:55,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81097 states, 81085 states have (on average 1.3067028426959364) internal successors, (105954), 81096 states have internal predecessors, (105954), 0 states have call successors, (0), 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 00:18:56,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81097 states to 81097 states and 105954 transitions. [2021-11-03 00:18:56,219 INFO L78 Accepts]: Start accepts. Automaton has 81097 states and 105954 transitions. Word has length 217 [2021-11-03 00:18:56,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:18:56,219 INFO L470 AbstractCegarLoop]: Abstraction has 81097 states and 105954 transitions. [2021-11-03 00:18:56,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:18:56,220 INFO L276 IsEmpty]: Start isEmpty. Operand 81097 states and 105954 transitions. [2021-11-03 00:18:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-03 00:18:56,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:18:56,230 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:18:56,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-03 00:18:56,230 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:18:56,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:18:56,230 INFO L85 PathProgramCache]: Analyzing trace with hash 740551819, now seen corresponding path program 1 times [2021-11-03 00:18:56,231 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:18:56,231 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749517734] [2021-11-03 00:18:56,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:18:56,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:18:56,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:18:56,337 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:18:56,338 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:18:56,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749517734] [2021-11-03 00:18:56,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749517734] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:18:56,338 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:18:56,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:18:56,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340308601] [2021-11-03 00:18:56,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:18:56,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:18:56,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:18:56,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:18:56,340 INFO L87 Difference]: Start difference. First operand 81097 states and 105954 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:19:01,496 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:03,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:19:03,431 INFO L93 Difference]: Finished difference Result 175643 states and 229584 transitions. [2021-11-03 00:19:03,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:19:03,431 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 217 [2021-11-03 00:19:03,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:19:03,584 INFO L225 Difference]: With dead ends: 175643 [2021-11-03 00:19:03,584 INFO L226 Difference]: Without dead ends: 94955 [2021-11-03 00:19:03,655 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.57ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:03,656 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 768 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 4347 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4427.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.25ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4347 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4945.59ms IncrementalHoareTripleChecker+Time [2021-11-03 00:19:03,656 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 0 Invalid, 4358 Unknown, 0 Unchecked, 4.25ms Time], IncrementalHoareTripleChecker [10 Valid, 4347 Invalid, 1 Unknown, 0 Unchecked, 4945.59ms Time] [2021-11-03 00:19:03,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94955 states. [2021-11-03 00:19:05,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94955 to 94939. [2021-11-03 00:19:05,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94939 states, 94927 states have (on average 1.3036649214659686) internal successors, (123753), 94938 states have internal predecessors, (123753), 0 states have call successors, (0), 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 00:19:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94939 states to 94939 states and 123753 transitions. [2021-11-03 00:19:06,097 INFO L78 Accepts]: Start accepts. Automaton has 94939 states and 123753 transitions. Word has length 217 [2021-11-03 00:19:06,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:19:06,098 INFO L470 AbstractCegarLoop]: Abstraction has 94939 states and 123753 transitions. [2021-11-03 00:19:06,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:19:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 94939 states and 123753 transitions. [2021-11-03 00:19:06,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-03 00:19:06,109 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:19:06,109 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:06,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-03 00:19:06,109 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:19:06,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:19:06,110 INFO L85 PathProgramCache]: Analyzing trace with hash 2125419923, now seen corresponding path program 1 times [2021-11-03 00:19:06,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:19:06,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885490533] [2021-11-03 00:19:06,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:19:06,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:19:06,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:19:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:19:06,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:19:06,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885490533] [2021-11-03 00:19:06,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885490533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:19:06,222 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:19:06,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:19:06,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225612739] [2021-11-03 00:19:06,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:19:06,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:19:06,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:19:06,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:06,224 INFO L87 Difference]: Start difference. First operand 94939 states and 123753 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:19:11,142 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.80s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:12,994 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:17,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:19:17,011 INFO L93 Difference]: Finished difference Result 216894 states and 283319 transitions. [2021-11-03 00:19:17,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:19:17,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 217 [2021-11-03 00:19:17,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:19:17,258 INFO L225 Difference]: With dead ends: 216894 [2021-11-03 00:19:17,258 INFO L226 Difference]: Without dead ends: 121580 [2021-11-03 00:19:17,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:17,363 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1349 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 4947 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7524.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1349 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.03ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4947 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8176.22ms IncrementalHoareTripleChecker+Time [2021-11-03 00:19:17,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1349 Valid, 0 Invalid, 4954 Unknown, 0 Unchecked, 5.03ms Time], IncrementalHoareTripleChecker [7 Valid, 4947 Invalid, 0 Unknown, 0 Unchecked, 8176.22ms Time] [2021-11-03 00:19:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121580 states. [2021-11-03 00:19:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121580 to 121550. [2021-11-03 00:19:20,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121550 states, 121538 states have (on average 1.3050403988875907) internal successors, (158612), 121549 states have internal predecessors, (158612), 0 states have call successors, (0), 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 00:19:20,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121550 states to 121550 states and 158612 transitions. [2021-11-03 00:19:20,691 INFO L78 Accepts]: Start accepts. Automaton has 121550 states and 158612 transitions. Word has length 217 [2021-11-03 00:19:20,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 00:19:20,691 INFO L470 AbstractCegarLoop]: Abstraction has 121550 states and 158612 transitions. [2021-11-03 00:19:20,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:19:20,691 INFO L276 IsEmpty]: Start isEmpty. Operand 121550 states and 158612 transitions. [2021-11-03 00:19:20,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-03 00:19:20,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 00:19:20,704 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:19:20,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-03 00:19:20,704 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 18 more)] === [2021-11-03 00:19:20,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 00:19:20,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1276061035, now seen corresponding path program 1 times [2021-11-03 00:19:20,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 00:19:20,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721684172] [2021-11-03 00:19:20,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 00:19:20,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 00:19:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 00:19:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-03 00:19:20,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 00:19:20,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721684172] [2021-11-03 00:19:20,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721684172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 00:19:20,820 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 00:19:20,820 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 00:19:20,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15150399] [2021-11-03 00:19:20,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 00:19:20,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 00:19:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 00:19:20,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:20,823 INFO L87 Difference]: Start difference. First operand 121550 states and 158612 transitions. Second operand has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 00:19:26,930 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:30,183 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:31,438 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 00:19:33,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 00:19:33,167 INFO L93 Difference]: Finished difference Result 270341 states and 353487 transitions. [2021-11-03 00:19:33,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 00:19:33,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.33333333333333) internal successors, (196), 3 states have internal predecessors, (196), 0 states have call successors, (0), 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 217 [2021-11-03 00:19:33,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 00:19:33,474 INFO L225 Difference]: With dead ends: 270341 [2021-11-03 00:19:33,474 INFO L226 Difference]: Without dead ends: 149200 [2021-11-03 00:19:33,607 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.67ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 00:19:33,607 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1358 mSDsluCounter, 1735 mSDsCounter, 0 mSdLazyCounter, 4938 mSolverCounterSat, 10 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8120.98ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1358 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4950 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.25ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 4938 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8761.01ms IncrementalHoareTripleChecker+Time [2021-11-03 00:19:33,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1358 Valid, 0 Invalid, 4950 Unknown, 0 Unchecked, 5.25ms Time], IncrementalHoareTripleChecker [10 Valid, 4938 Invalid, 2 Unknown, 0 Unchecked, 8761.01ms Time] [2021-11-03 00:19:33,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149200 states.