./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 173e3943 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-dev-173e394 [2021-11-06 18:47:16,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:47:16,059 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:47:16,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:47:16,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:47:16,093 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:47:16,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:47:16,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:47:16,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:47:16,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:47:16,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:47:16,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:47:16,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:47:16,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:47:16,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:47:16,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:47:16,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:47:16,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:47:16,119 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:47:16,125 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:47:16,128 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:47:16,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:47:16,129 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:47:16,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:47:16,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:47:16,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:47:16,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:47:16,133 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:47:16,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:47:16,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:47:16,135 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:47:16,136 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:47:16,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:47:16,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:47:16,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:47:16,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:47:16,139 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:47:16,140 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:47:16,140 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:47:16,140 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:47:16,141 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:47:16,141 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:47:16,162 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:47:16,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:47:16,163 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:47:16,163 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:47:16,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:47:16,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:47:16,164 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:47:16,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:47:16,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:47:16,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:47:16,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:47:16,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:47:16,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:47:16,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:47:16,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:47:16,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:47:16,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:47:16,168 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:47:16,169 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6afaf5bedcc2af934f5b2a4cc6fb91099717aaf97d30d9787d5c01855a1a43 [2021-11-06 18:47:16,385 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:47:16,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:47:16,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:47:16,406 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:47:16,406 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:47:16,407 INFO L432 ainManager$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 [2021-11-06 18:47:16,463 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ab0d75b/d8cff9ec783742e88ec8226e27850531/FLAG100207caa [2021-11-06 18:47:17,054 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:47:17,054 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 [2021-11-06 18:47:17,088 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ab0d75b/d8cff9ec783742e88ec8226e27850531/FLAG100207caa [2021-11-06 18:47:17,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0ab0d75b/d8cff9ec783742e88ec8226e27850531 [2021-11-06 18:47:17,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:47:17,246 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:47:17,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:47:17,253 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:47:17,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:47:17,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:47:17" (1/1) ... [2021-11-06 18:47:17,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a313ec9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:17, skipping insertion in model container [2021-11-06 18:47:17,257 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:47:17" (1/1) ... [2021-11-06 18:47:17,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:47:17,349 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:47:18,362 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] [2021-11-06 18:47:18,366 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] [2021-11-06 18:47:18,367 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] [2021-11-06 18:47:18,367 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] [2021-11-06 18:47:18,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:47:18,406 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:47:18,573 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] [2021-11-06 18:47:18,575 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[193489,193502] [2021-11-06 18:47:18,575 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[193653,193666] [2021-11-06 18:47:18,575 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[193818,193831] [2021-11-06 18:47:18,583 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:47:18,636 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:47:18,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18 WrapperNode [2021-11-06 18:47:18,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:47:18,637 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:47:18,637 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:47:18,637 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:47:18,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:18,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:18,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:47:18,907 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:47:18,907 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:47:18,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:47:18,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:18,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:18,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:18,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:19,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:19,064 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:19,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:19,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:47:19,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:47:19,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:47:19,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:47:19,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (1/1) ... [2021-11-06 18:47:19,184 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:47:19,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:47:19,211 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) [2021-11-06 18:47:19,215 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 [2021-11-06 18:47:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:47:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:47:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:47:19,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:47:19,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:47:19,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:47:24,301 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 18:47:24,302 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:47:24,302 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 18:47:24,302 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:47:24,302 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,303 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:47:24,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:47:24,323 INFO L299 CfgBuilder]: Removed 1490 assume(true) statements. [2021-11-06 18:47:24,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:47:24 BoogieIcfgContainer [2021-11-06 18:47:24,326 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:47:24,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:47:24,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:47:24,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:47:24,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:47:17" (1/3) ... [2021-11-06 18:47:24,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d1b00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:47:24, skipping insertion in model container [2021-11-06 18:47:24,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:47:18" (2/3) ... [2021-11-06 18:47:24,330 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66d1b00c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:47:24, skipping insertion in model container [2021-11-06 18:47:24,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:47:24" (3/3) ... [2021-11-06 18:47:24,331 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2021-11-06 18:47:24,334 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:47:24,334 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 21 error locations. [2021-11-06 18:47:24,382 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:47:24,386 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 [2021-11-06 18:47:24,387 INFO L340 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2021-11-06 18:47:24,414 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) [2021-11-06 18:47:24,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 18:47:24,438 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:24,439 INFO L513 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] [2021-11-06 18:47:24,440 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)] === [2021-11-06 18:47:24,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:24,443 INFO L85 PathProgramCache]: Analyzing trace with hash 612313430, now seen corresponding path program 1 times [2021-11-06 18:47:24,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:24,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803782804] [2021-11-06 18:47:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:24,450 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:24,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:24,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:24,884 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803782804] [2021-11-06 18:47:24,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803782804] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:24,885 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:24,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:24,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231909736] [2021-11-06 18:47:24,889 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:24,890 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:24,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:24,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:24,901 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) [2021-11-06 18:47:25,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:25,195 INFO L93 Difference]: Finished difference Result 4234 states and 5721 transitions. [2021-11-06 18:47:25,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:25,197 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 [2021-11-06 18:47:25,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:25,213 INFO L225 Difference]: With dead ends: 4234 [2021-11-06 18:47:25,213 INFO L226 Difference]: Without dead ends: 2634 [2021-11-06 18:47:25,218 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:25,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2021-11-06 18:47:25,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2610. [2021-11-06 18:47:25,298 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) [2021-11-06 18:47:25,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3359 transitions. [2021-11-06 18:47:25,303 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3359 transitions. Word has length 93 [2021-11-06 18:47:25,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:25,304 INFO L470 AbstractCegarLoop]: Abstraction has 2610 states and 3359 transitions. [2021-11-06 18:47:25,304 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) [2021-11-06 18:47:25,304 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3359 transitions. [2021-11-06 18:47:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-06 18:47:25,307 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:25,307 INFO L513 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] [2021-11-06 18:47:25,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:47:25,308 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)] === [2021-11-06 18:47:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:25,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1275313139, now seen corresponding path program 1 times [2021-11-06 18:47:25,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:25,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485266227] [2021-11-06 18:47:25,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:25,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:25,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:25,413 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485266227] [2021-11-06 18:47:25,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485266227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:25,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:25,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:25,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283013901] [2021-11-06 18:47:25,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:25,415 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:25,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:25,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:25,416 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) [2021-11-06 18:47:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:25,679 INFO L93 Difference]: Finished difference Result 5925 states and 7676 transitions. [2021-11-06 18:47:25,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:25,680 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 [2021-11-06 18:47:25,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:25,691 INFO L225 Difference]: With dead ends: 5925 [2021-11-06 18:47:25,691 INFO L226 Difference]: Without dead ends: 3511 [2021-11-06 18:47:25,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:25,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2021-11-06 18:47:25,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3427. [2021-11-06 18:47:25,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 3406 states have (on average 1.3053435114503817) internal successors, (4446), 3426 states have internal predecessors, (4446), 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) [2021-11-06 18:47:25,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4446 transitions. [2021-11-06 18:47:25,757 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4446 transitions. Word has length 119 [2021-11-06 18:47:25,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:25,757 INFO L470 AbstractCegarLoop]: Abstraction has 3427 states and 4446 transitions. [2021-11-06 18:47:25,758 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) [2021-11-06 18:47:25,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4446 transitions. [2021-11-06 18:47:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-11-06 18:47:25,760 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:25,760 INFO L513 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] [2021-11-06 18:47:25,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:47:25,760 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)] === [2021-11-06 18:47:25,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:25,761 INFO L85 PathProgramCache]: Analyzing trace with hash -2112429701, now seen corresponding path program 1 times [2021-11-06 18:47:25,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:25,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535555876] [2021-11-06 18:47:25,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:25,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:25,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:25,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:25,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535555876] [2021-11-06 18:47:25,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535555876] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:25,859 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:25,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:25,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774849252] [2021-11-06 18:47:25,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:25,859 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:25,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:25,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:25,860 INFO L87 Difference]: Start difference. First operand 3427 states and 4446 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) [2021-11-06 18:47:26,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:26,066 INFO L93 Difference]: Finished difference Result 8440 states and 11032 transitions. [2021-11-06 18:47:26,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:26,067 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 [2021-11-06 18:47:26,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:26,083 INFO L225 Difference]: With dead ends: 8440 [2021-11-06 18:47:26,084 INFO L226 Difference]: Without dead ends: 5209 [2021-11-06 18:47:26,090 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2021-11-06 18:47:26,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5121. [2021-11-06 18:47:26,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5121 states, 5100 states have (on average 1.313921568627451) internal successors, (6701), 5120 states have internal predecessors, (6701), 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) [2021-11-06 18:47:26,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 6701 transitions. [2021-11-06 18:47:26,230 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 6701 transitions. Word has length 120 [2021-11-06 18:47:26,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:26,231 INFO L470 AbstractCegarLoop]: Abstraction has 5121 states and 6701 transitions. [2021-11-06 18:47:26,231 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) [2021-11-06 18:47:26,231 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 6701 transitions. [2021-11-06 18:47:26,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-06 18:47:26,233 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:26,233 INFO L513 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] [2021-11-06 18:47:26,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:47:26,233 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)] === [2021-11-06 18:47:26,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:26,234 INFO L85 PathProgramCache]: Analyzing trace with hash -567235804, now seen corresponding path program 1 times [2021-11-06 18:47:26,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:26,234 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133563791] [2021-11-06 18:47:26,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:26,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:26,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:26,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:26,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133563791] [2021-11-06 18:47:26,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133563791] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:26,315 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:26,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:26,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704409741] [2021-11-06 18:47:26,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:26,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:26,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:26,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:26,316 INFO L87 Difference]: Start difference. First operand 5121 states and 6701 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) [2021-11-06 18:47:26,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:26,558 INFO L93 Difference]: Finished difference Result 11222 states and 14682 transitions. [2021-11-06 18:47:26,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:26,559 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 [2021-11-06 18:47:26,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:26,576 INFO L225 Difference]: With dead ends: 11222 [2021-11-06 18:47:26,577 INFO L226 Difference]: Without dead ends: 6297 [2021-11-06 18:47:26,584 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:26,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6297 states. [2021-11-06 18:47:26,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 6223. [2021-11-06 18:47:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6223 states, 6202 states have (on average 1.3034504998387617) internal successors, (8084), 6222 states have internal predecessors, (8084), 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) [2021-11-06 18:47:26,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 8084 transitions. [2021-11-06 18:47:26,761 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 8084 transitions. Word has length 121 [2021-11-06 18:47:26,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:26,761 INFO L470 AbstractCegarLoop]: Abstraction has 6223 states and 8084 transitions. [2021-11-06 18:47:26,762 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) [2021-11-06 18:47:26,762 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 8084 transitions. [2021-11-06 18:47:26,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 18:47:26,763 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:26,763 INFO L513 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] [2021-11-06 18:47:26,763 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:47:26,764 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)] === [2021-11-06 18:47:26,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:26,764 INFO L85 PathProgramCache]: Analyzing trace with hash -629602836, now seen corresponding path program 1 times [2021-11-06 18:47:26,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:26,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129438713] [2021-11-06 18:47:26,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:26,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:26,834 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:26,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:26,835 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129438713] [2021-11-06 18:47:26,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129438713] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:26,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:26,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:26,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942369734] [2021-11-06 18:47:26,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:26,836 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:26,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:26,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:26,837 INFO L87 Difference]: Start difference. First operand 6223 states and 8084 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) [2021-11-06 18:47:27,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:27,081 INFO L93 Difference]: Finished difference Result 17461 states and 22831 transitions. [2021-11-06 18:47:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:27,081 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 [2021-11-06 18:47:27,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:27,125 INFO L225 Difference]: With dead ends: 17461 [2021-11-06 18:47:27,125 INFO L226 Difference]: Without dead ends: 11647 [2021-11-06 18:47:27,136 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2021-11-06 18:47:27,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11623. [2021-11-06 18:47:27,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11623 states, 11602 states have (on average 1.3077055680055163) internal successors, (15172), 11622 states have internal predecessors, (15172), 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) [2021-11-06 18:47:27,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11623 states to 11623 states and 15172 transitions. [2021-11-06 18:47:27,466 INFO L78 Accepts]: Start accepts. Automaton has 11623 states and 15172 transitions. Word has length 126 [2021-11-06 18:47:27,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:27,467 INFO L470 AbstractCegarLoop]: Abstraction has 11623 states and 15172 transitions. [2021-11-06 18:47:27,470 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) [2021-11-06 18:47:27,470 INFO L276 IsEmpty]: Start isEmpty. Operand 11623 states and 15172 transitions. [2021-11-06 18:47:27,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2021-11-06 18:47:27,473 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:27,473 INFO L513 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] [2021-11-06 18:47:27,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:47:27,474 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)] === [2021-11-06 18:47:27,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:27,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1671219754, now seen corresponding path program 1 times [2021-11-06 18:47:27,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:27,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711711657] [2021-11-06 18:47:27,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:27,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:27,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:27,605 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 18:47:27,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:27,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711711657] [2021-11-06 18:47:27,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711711657] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:27,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:27,606 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:47:27,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606252631] [2021-11-06 18:47:27,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:47:27,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:47:27,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:47:27,608 INFO L87 Difference]: Start difference. First operand 11623 states and 15172 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) [2021-11-06 18:47:27,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:27,810 INFO L93 Difference]: Finished difference Result 11623 states and 15172 transitions. [2021-11-06 18:47:27,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:47:27,811 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 [2021-11-06 18:47:27,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:27,831 INFO L225 Difference]: With dead ends: 11623 [2021-11-06 18:47:27,831 INFO L226 Difference]: Without dead ends: 11617 [2021-11-06 18:47:27,835 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:47:27,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11617 states. [2021-11-06 18:47:28,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11617 to 11617. [2021-11-06 18:47:28,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11617 states, 11599 states have (on average 1.3075265109061125) internal successors, (15166), 11616 states have internal predecessors, (15166), 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) [2021-11-06 18:47:28,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11617 states to 11617 states and 15166 transitions. [2021-11-06 18:47:28,145 INFO L78 Accepts]: Start accepts. Automaton has 11617 states and 15166 transitions. Word has length 126 [2021-11-06 18:47:28,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:28,145 INFO L470 AbstractCegarLoop]: Abstraction has 11617 states and 15166 transitions. [2021-11-06 18:47:28,145 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) [2021-11-06 18:47:28,145 INFO L276 IsEmpty]: Start isEmpty. Operand 11617 states and 15166 transitions. [2021-11-06 18:47:28,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-11-06 18:47:28,147 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:28,147 INFO L513 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] [2021-11-06 18:47:28,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:47:28,148 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)] === [2021-11-06 18:47:28,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:28,148 INFO L85 PathProgramCache]: Analyzing trace with hash -275429363, now seen corresponding path program 1 times [2021-11-06 18:47:28,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:28,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735958519] [2021-11-06 18:47:28,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:28,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:28,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:28,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 18:47:28,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:28,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735958519] [2021-11-06 18:47:28,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735958519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:28,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:28,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:47:28,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982356163] [2021-11-06 18:47:28,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:47:28,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:28,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:47:28,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:47:28,259 INFO L87 Difference]: Start difference. First operand 11617 states and 15166 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) [2021-11-06 18:47:28,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:28,512 INFO L93 Difference]: Finished difference Result 11617 states and 15166 transitions. [2021-11-06 18:47:28,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:47:28,512 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 [2021-11-06 18:47:28,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:28,530 INFO L225 Difference]: With dead ends: 11617 [2021-11-06 18:47:28,531 INFO L226 Difference]: Without dead ends: 11611 [2021-11-06 18:47:28,534 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:47:28,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11611 states. [2021-11-06 18:47:28,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11611 to 11611. [2021-11-06 18:47:28,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11611 states, 11596 states have (on average 1.3073473611590203) internal successors, (15160), 11610 states have internal predecessors, (15160), 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) [2021-11-06 18:47:28,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11611 states to 11611 states and 15160 transitions. [2021-11-06 18:47:28,838 INFO L78 Accepts]: Start accepts. Automaton has 11611 states and 15160 transitions. Word has length 128 [2021-11-06 18:47:28,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:28,838 INFO L470 AbstractCegarLoop]: Abstraction has 11611 states and 15160 transitions. [2021-11-06 18:47:28,839 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) [2021-11-06 18:47:28,839 INFO L276 IsEmpty]: Start isEmpty. Operand 11611 states and 15160 transitions. [2021-11-06 18:47:28,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-11-06 18:47:28,841 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:28,841 INFO L513 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] [2021-11-06 18:47:28,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:47:28,841 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)] === [2021-11-06 18:47:28,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:28,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1600510576, now seen corresponding path program 1 times [2021-11-06 18:47:28,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:28,842 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844624873] [2021-11-06 18:47:28,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:28,842 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-06 18:47:28,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:28,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844624873] [2021-11-06 18:47:28,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844624873] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:28,978 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:28,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 18:47:28,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935100813] [2021-11-06 18:47:28,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:47:28,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:47:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:47:28,979 INFO L87 Difference]: Start difference. First operand 11611 states and 15160 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) [2021-11-06 18:47:29,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:29,213 INFO L93 Difference]: Finished difference Result 11611 states and 15160 transitions. [2021-11-06 18:47:29,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:47:29,213 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 [2021-11-06 18:47:29,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:29,234 INFO L225 Difference]: With dead ends: 11611 [2021-11-06 18:47:29,234 INFO L226 Difference]: Without dead ends: 11565 [2021-11-06 18:47:29,238 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 18:47:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11565 states. [2021-11-06 18:47:29,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11565 to 11565. [2021-11-06 18:47:29,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11565 states, 11553 states have (on average 1.306413918462737) internal successors, (15093), 11564 states have internal predecessors, (15093), 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) [2021-11-06 18:47:29,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11565 states to 11565 states and 15093 transitions. [2021-11-06 18:47:29,535 INFO L78 Accepts]: Start accepts. Automaton has 11565 states and 15093 transitions. Word has length 130 [2021-11-06 18:47:29,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:29,535 INFO L470 AbstractCegarLoop]: Abstraction has 11565 states and 15093 transitions. [2021-11-06 18:47:29,535 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) [2021-11-06 18:47:29,536 INFO L276 IsEmpty]: Start isEmpty. Operand 11565 states and 15093 transitions. [2021-11-06 18:47:29,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-11-06 18:47:29,542 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:29,542 INFO L513 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] [2021-11-06 18:47:29,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:47:29,542 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)] === [2021-11-06 18:47:29,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1454743280, now seen corresponding path program 1 times [2021-11-06 18:47:29,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:29,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399042981] [2021-11-06 18:47:29,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:29,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:29,614 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:47:29,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:29,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399042981] [2021-11-06 18:47:29,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399042981] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:29,615 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:29,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:29,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964855507] [2021-11-06 18:47:29,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:29,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:29,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:29,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:29,617 INFO L87 Difference]: Start difference. First operand 11565 states and 15093 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) [2021-11-06 18:47:30,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:30,148 INFO L93 Difference]: Finished difference Result 28153 states and 36841 transitions. [2021-11-06 18:47:30,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:30,148 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 [2021-11-06 18:47:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:30,180 INFO L225 Difference]: With dead ends: 28153 [2021-11-06 18:47:30,181 INFO L226 Difference]: Without dead ends: 16713 [2021-11-06 18:47:30,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:30,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16713 states. [2021-11-06 18:47:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16713 to 16689. [2021-11-06 18:47:30,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16689 states, 16677 states have (on average 1.3091083528212508) internal successors, (21832), 16688 states have internal predecessors, (21832), 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) [2021-11-06 18:47:30,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 21832 transitions. [2021-11-06 18:47:30,606 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 21832 transitions. Word has length 168 [2021-11-06 18:47:30,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:30,607 INFO L470 AbstractCegarLoop]: Abstraction has 16689 states and 21832 transitions. [2021-11-06 18:47:30,607 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) [2021-11-06 18:47:30,607 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 21832 transitions. [2021-11-06 18:47:30,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-06 18:47:30,613 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:30,614 INFO L513 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] [2021-11-06 18:47:30,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:47:30,614 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)] === [2021-11-06 18:47:30,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:30,614 INFO L85 PathProgramCache]: Analyzing trace with hash 699024311, now seen corresponding path program 1 times [2021-11-06 18:47:30,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:30,615 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082806627] [2021-11-06 18:47:30,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:30,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:30,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-06 18:47:30,691 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:30,691 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082806627] [2021-11-06 18:47:30,691 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082806627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:30,691 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:30,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:30,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853834863] [2021-11-06 18:47:30,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:30,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:30,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:30,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:30,693 INFO L87 Difference]: Start difference. First operand 16689 states and 21832 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) [2021-11-06 18:47:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:31,171 INFO L93 Difference]: Finished difference Result 38353 states and 50231 transitions. [2021-11-06 18:47:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:31,172 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 [2021-11-06 18:47:31,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:31,211 INFO L225 Difference]: With dead ends: 38353 [2021-11-06 18:47:31,212 INFO L226 Difference]: Without dead ends: 21837 [2021-11-06 18:47:31,233 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:31,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21837 states. [2021-11-06 18:47:31,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21837 to 16689. [2021-11-06 18:47:31,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16689 states, 16677 states have (on average 1.309048389998201) internal successors, (21831), 16688 states have internal predecessors, (21831), 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) [2021-11-06 18:47:31,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 21831 transitions. [2021-11-06 18:47:31,589 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 21831 transitions. Word has length 184 [2021-11-06 18:47:31,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:31,590 INFO L470 AbstractCegarLoop]: Abstraction has 16689 states and 21831 transitions. [2021-11-06 18:47:31,590 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) [2021-11-06 18:47:31,590 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 21831 transitions. [2021-11-06 18:47:31,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2021-11-06 18:47:31,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:31,597 INFO L513 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] [2021-11-06 18:47:31,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-06 18:47:31,598 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)] === [2021-11-06 18:47:31,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:31,598 INFO L85 PathProgramCache]: Analyzing trace with hash 900848245, now seen corresponding path program 1 times [2021-11-06 18:47:31,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:31,599 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585348864] [2021-11-06 18:47:31,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:31,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:31,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:31,681 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-06 18:47:31,682 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:31,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585348864] [2021-11-06 18:47:31,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585348864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:31,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:31,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:31,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361219489] [2021-11-06 18:47:31,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:31,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:31,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:31,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:31,684 INFO L87 Difference]: Start difference. First operand 16689 states and 21831 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) [2021-11-06 18:47:32,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:32,323 INFO L93 Difference]: Finished difference Result 40125 states and 52672 transitions. [2021-11-06 18:47:32,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:32,323 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 [2021-11-06 18:47:32,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:32,372 INFO L225 Difference]: With dead ends: 40125 [2021-11-06 18:47:32,372 INFO L226 Difference]: Without dead ends: 23845 [2021-11-06 18:47:32,399 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:32,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23845 states. [2021-11-06 18:47:32,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23845 to 23819. [2021-11-06 18:47:32,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23819 states, 23807 states have (on average 1.311000966102407) internal successors, (31211), 23818 states have internal predecessors, (31211), 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) [2021-11-06 18:47:32,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23819 states to 23819 states and 31211 transitions. [2021-11-06 18:47:32,995 INFO L78 Accepts]: Start accepts. Automaton has 23819 states and 31211 transitions. Word has length 184 [2021-11-06 18:47:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:32,996 INFO L470 AbstractCegarLoop]: Abstraction has 23819 states and 31211 transitions. [2021-11-06 18:47:32,996 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) [2021-11-06 18:47:32,996 INFO L276 IsEmpty]: Start isEmpty. Operand 23819 states and 31211 transitions. [2021-11-06 18:47:33,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-11-06 18:47:33,003 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:33,003 INFO L513 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] [2021-11-06 18:47:33,003 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-06 18:47:33,003 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)] === [2021-11-06 18:47:33,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:33,004 INFO L85 PathProgramCache]: Analyzing trace with hash -835939527, now seen corresponding path program 1 times [2021-11-06 18:47:33,004 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:33,004 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974636867] [2021-11-06 18:47:33,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:33,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:33,089 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-06 18:47:33,089 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:33,090 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974636867] [2021-11-06 18:47:33,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974636867] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:33,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:33,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:33,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084204219] [2021-11-06 18:47:33,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:33,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:33,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:33,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:33,091 INFO L87 Difference]: Start difference. First operand 23819 states and 31211 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) [2021-11-06 18:47:33,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:33,849 INFO L93 Difference]: Finished difference Result 57585 states and 75715 transitions. [2021-11-06 18:47:33,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:33,850 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 [2021-11-06 18:47:33,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:33,919 INFO L225 Difference]: With dead ends: 57585 [2021-11-06 18:47:33,920 INFO L226 Difference]: Without dead ends: 34175 [2021-11-06 18:47:33,956 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:33,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34175 states. [2021-11-06 18:47:34,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34175 to 34145. [2021-11-06 18:47:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34145 states, 34133 states have (on average 1.3129815720856648) internal successors, (44816), 34144 states have internal predecessors, (44816), 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) [2021-11-06 18:47:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34145 states to 34145 states and 44816 transitions. [2021-11-06 18:47:34,776 INFO L78 Accepts]: Start accepts. Automaton has 34145 states and 44816 transitions. Word has length 185 [2021-11-06 18:47:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:34,777 INFO L470 AbstractCegarLoop]: Abstraction has 34145 states and 44816 transitions. [2021-11-06 18:47:34,777 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) [2021-11-06 18:47:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 34145 states and 44816 transitions. [2021-11-06 18:47:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-11-06 18:47:34,782 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:34,782 INFO L513 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] [2021-11-06 18:47:34,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-06 18:47:34,782 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)] === [2021-11-06 18:47:34,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:34,783 INFO L85 PathProgramCache]: Analyzing trace with hash 349253926, now seen corresponding path program 1 times [2021-11-06 18:47:34,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:34,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348539356] [2021-11-06 18:47:34,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:34,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:34,856 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-11-06 18:47:34,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:34,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348539356] [2021-11-06 18:47:34,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348539356] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:34,857 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:34,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:34,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308499150] [2021-11-06 18:47:34,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:34,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:34,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:34,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:34,859 INFO L87 Difference]: Start difference. First operand 34145 states and 44816 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) [2021-11-06 18:47:35,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:35,791 INFO L93 Difference]: Finished difference Result 76915 states and 100976 transitions. [2021-11-06 18:47:35,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:35,792 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 [2021-11-06 18:47:35,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:36,059 INFO L225 Difference]: With dead ends: 76915 [2021-11-06 18:47:36,059 INFO L226 Difference]: Without dead ends: 43179 [2021-11-06 18:47:36,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43179 states. [2021-11-06 18:47:37,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43179 to 43163. [2021-11-06 18:47:37,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43163 states, 43151 states have (on average 1.3070149011610392) internal successors, (56399), 43162 states have internal predecessors, (56399), 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) [2021-11-06 18:47:37,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43163 states to 43163 states and 56399 transitions. [2021-11-06 18:47:37,254 INFO L78 Accepts]: Start accepts. Automaton has 43163 states and 56399 transitions. Word has length 186 [2021-11-06 18:47:37,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:37,255 INFO L470 AbstractCegarLoop]: Abstraction has 43163 states and 56399 transitions. [2021-11-06 18:47:37,255 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) [2021-11-06 18:47:37,255 INFO L276 IsEmpty]: Start isEmpty. Operand 43163 states and 56399 transitions. [2021-11-06 18:47:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-06 18:47:37,266 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:37,266 INFO L513 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] [2021-11-06 18:47:37,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-06 18:47:37,266 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)] === [2021-11-06 18:47:37,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:37,267 INFO L85 PathProgramCache]: Analyzing trace with hash -665696704, now seen corresponding path program 1 times [2021-11-06 18:47:37,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:37,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777403557] [2021-11-06 18:47:37,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:37,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:37,349 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-06 18:47:37,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:37,349 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777403557] [2021-11-06 18:47:37,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777403557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:37,350 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:37,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:37,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886204028] [2021-11-06 18:47:37,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:37,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:37,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:37,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:37,351 INFO L87 Difference]: Start difference. First operand 43163 states and 56399 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) [2021-11-06 18:47:38,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:38,675 INFO L93 Difference]: Finished difference Result 98498 states and 128943 transitions. [2021-11-06 18:47:38,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:38,675 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 [2021-11-06 18:47:38,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:38,776 INFO L225 Difference]: With dead ends: 98498 [2021-11-06 18:47:38,776 INFO L226 Difference]: Without dead ends: 55540 [2021-11-06 18:47:38,841 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:38,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55540 states. [2021-11-06 18:47:40,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55540 to 55514. [2021-11-06 18:47:40,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55514 states, 55502 states have (on average 1.3083492486757233) internal successors, (72616), 55513 states have internal predecessors, (72616), 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) [2021-11-06 18:47:40,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55514 states to 55514 states and 72616 transitions. [2021-11-06 18:47:40,283 INFO L78 Accepts]: Start accepts. Automaton has 55514 states and 72616 transitions. Word has length 214 [2021-11-06 18:47:40,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:40,283 INFO L470 AbstractCegarLoop]: Abstraction has 55514 states and 72616 transitions. [2021-11-06 18:47:40,283 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) [2021-11-06 18:47:40,284 INFO L276 IsEmpty]: Start isEmpty. Operand 55514 states and 72616 transitions. [2021-11-06 18:47:40,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-06 18:47:40,293 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:40,293 INFO L513 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] [2021-11-06 18:47:40,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-06 18:47:40,294 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)] === [2021-11-06 18:47:40,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:40,294 INFO L85 PathProgramCache]: Analyzing trace with hash 1579882750, now seen corresponding path program 1 times [2021-11-06 18:47:40,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:40,295 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768775944] [2021-11-06 18:47:40,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:40,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-06 18:47:40,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:40,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768775944] [2021-11-06 18:47:40,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768775944] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:40,376 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:40,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:40,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496765476] [2021-11-06 18:47:40,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:40,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:40,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:40,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:40,378 INFO L87 Difference]: Start difference. First operand 55514 states and 72616 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) [2021-11-06 18:47:42,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:42,222 INFO L93 Difference]: Finished difference Result 123281 states and 161539 transitions. [2021-11-06 18:47:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:42,223 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 [2021-11-06 18:47:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:42,353 INFO L225 Difference]: With dead ends: 123281 [2021-11-06 18:47:42,353 INFO L226 Difference]: Without dead ends: 68176 [2021-11-06 18:47:42,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:42,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68176 states. [2021-11-06 18:47:43,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68176 to 68150. [2021-11-06 18:47:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68150 states, 68138 states have (on average 1.3088878452552173) internal successors, (89185), 68149 states have internal predecessors, (89185), 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) [2021-11-06 18:47:44,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68150 states to 68150 states and 89185 transitions. [2021-11-06 18:47:44,173 INFO L78 Accepts]: Start accepts. Automaton has 68150 states and 89185 transitions. Word has length 214 [2021-11-06 18:47:44,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:44,173 INFO L470 AbstractCegarLoop]: Abstraction has 68150 states and 89185 transitions. [2021-11-06 18:47:44,174 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) [2021-11-06 18:47:44,174 INFO L276 IsEmpty]: Start isEmpty. Operand 68150 states and 89185 transitions. [2021-11-06 18:47:44,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-06 18:47:44,186 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:44,186 INFO L513 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] [2021-11-06 18:47:44,186 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-06 18:47:44,186 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)] === [2021-11-06 18:47:44,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:44,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1187720883, now seen corresponding path program 1 times [2021-11-06 18:47:44,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:44,188 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105585874] [2021-11-06 18:47:44,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:44,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:44,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:44,285 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-06 18:47:44,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:44,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105585874] [2021-11-06 18:47:44,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105585874] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:44,287 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:44,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:44,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809315956] [2021-11-06 18:47:44,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:44,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:44,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:44,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:44,288 INFO L87 Difference]: Start difference. First operand 68150 states and 89185 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) [2021-11-06 18:47:46,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:46,240 INFO L93 Difference]: Finished difference Result 149614 states and 195776 transitions. [2021-11-06 18:47:46,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:46,241 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 [2021-11-06 18:47:46,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:46,398 INFO L225 Difference]: With dead ends: 149614 [2021-11-06 18:47:46,399 INFO L226 Difference]: Without dead ends: 81473 [2021-11-06 18:47:46,493 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:46,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81473 states. [2021-11-06 18:47:48,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81473 to 81457. [2021-11-06 18:47:48,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81457 states, 81445 states have (on average 1.3053471667996808) internal successors, (106314), 81456 states have internal predecessors, (106314), 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) [2021-11-06 18:47:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81457 states to 81457 states and 106314 transitions. [2021-11-06 18:47:48,758 INFO L78 Accepts]: Start accepts. Automaton has 81457 states and 106314 transitions. Word has length 217 [2021-11-06 18:47:48,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:48,758 INFO L470 AbstractCegarLoop]: Abstraction has 81457 states and 106314 transitions. [2021-11-06 18:47:48,758 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) [2021-11-06 18:47:48,758 INFO L276 IsEmpty]: Start isEmpty. Operand 81457 states and 106314 transitions. [2021-11-06 18:47:48,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-06 18:47:48,771 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:48,771 INFO L513 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] [2021-11-06 18:47:48,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-06 18:47:48,771 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)] === [2021-11-06 18:47:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:48,772 INFO L85 PathProgramCache]: Analyzing trace with hash 740551819, now seen corresponding path program 1 times [2021-11-06 18:47:48,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:48,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499528002] [2021-11-06 18:47:48,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:48,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:48,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:48,874 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-06 18:47:48,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:48,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499528002] [2021-11-06 18:47:48,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499528002] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:48,875 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:48,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:48,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723943988] [2021-11-06 18:47:48,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:48,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:48,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:48,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:48,877 INFO L87 Difference]: Start difference. First operand 81457 states and 106314 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) [2021-11-06 18:47:51,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:51,453 INFO L93 Difference]: Finished difference Result 176363 states and 230304 transitions. [2021-11-06 18:47:51,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:51,454 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 [2021-11-06 18:47:51,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:51,626 INFO L225 Difference]: With dead ends: 176363 [2021-11-06 18:47:51,626 INFO L226 Difference]: Without dead ends: 95315 [2021-11-06 18:47:51,695 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:51,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95315 states. [2021-11-06 18:47:53,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95315 to 95299. [2021-11-06 18:47:53,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95299 states, 95287 states have (on average 1.3025176571830366) internal successors, (124113), 95298 states have internal predecessors, (124113), 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) [2021-11-06 18:47:54,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95299 states to 95299 states and 124113 transitions. [2021-11-06 18:47:54,168 INFO L78 Accepts]: Start accepts. Automaton has 95299 states and 124113 transitions. Word has length 217 [2021-11-06 18:47:54,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:47:54,169 INFO L470 AbstractCegarLoop]: Abstraction has 95299 states and 124113 transitions. [2021-11-06 18:47:54,169 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) [2021-11-06 18:47:54,169 INFO L276 IsEmpty]: Start isEmpty. Operand 95299 states and 124113 transitions. [2021-11-06 18:47:54,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2021-11-06 18:47:54,181 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:47:54,181 INFO L513 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] [2021-11-06 18:47:54,181 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-06 18:47:54,181 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)] === [2021-11-06 18:47:54,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:47:54,182 INFO L85 PathProgramCache]: Analyzing trace with hash 2125419923, now seen corresponding path program 1 times [2021-11-06 18:47:54,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:47:54,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131931898] [2021-11-06 18:47:54,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:47:54,182 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:47:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:47:54,260 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-06 18:47:54,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:47:54,261 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131931898] [2021-11-06 18:47:54,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131931898] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:47:54,261 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:47:54,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:47:54,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836224297] [2021-11-06 18:47:54,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:47:54,261 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:47:54,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:47:54,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:54,262 INFO L87 Difference]: Start difference. First operand 95299 states and 124113 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) [2021-11-06 18:47:57,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:47:57,202 INFO L93 Difference]: Finished difference Result 217734 states and 284159 transitions. [2021-11-06 18:47:57,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:47:57,203 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 [2021-11-06 18:47:57,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:47:57,487 INFO L225 Difference]: With dead ends: 217734 [2021-11-06 18:47:57,487 INFO L226 Difference]: Without dead ends: 122060 [2021-11-06 18:47:57,623 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:47:57,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122060 states.