./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_drivers-net-netconsole.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_drivers-net-netconsole.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 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:42:05,112 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:42:05,113 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:42:05,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:42:05,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:42:05,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:42:05,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:42:05,145 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:42:05,159 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:42:05,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:42:05,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:42:05,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:42:05,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:42:05,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:42:05,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:42:05,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:42:05,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:42:05,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:42:05,167 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:42:05,169 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:42:05,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:42:05,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:42:05,173 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:42:05,173 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:42:05,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:42:05,175 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:42:05,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:42:05,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:42:05,176 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:42:05,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:42:05,177 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:42:05,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:42:05,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:42:05,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:42:05,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:42:05,180 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:42:05,180 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:42:05,181 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:42:05,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:42:05,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:42:05,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:42:05,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:42:05,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:42:05,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:42:05,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:42:05,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:42:05,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:42:05,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:42:05,199 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:42:05,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:42:05,200 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:42:05,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:42:05,201 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:42:05,201 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:42:05,201 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:42:05,201 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:42:05,201 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:42:05,202 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:42:05,202 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:42:05,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:42:05,203 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:42:05,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 71a59a3596571aa79fb44a527a9b6a33b40c9acdae164ed96a4388ebcdf2e0df [2021-11-06 18:42:05,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:42:05,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:42:05,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:42:05,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:42:05,414 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:42:05,415 INFO L432 ainManager$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_drivers-net-netconsole.cil.i [2021-11-06 18:42:05,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d06904c/a4effbfb5a7843e9ab59819c4ed7b313/FLAG5fdf0811e [2021-11-06 18:42:06,036 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:42:06,037 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_drivers-net-netconsole.cil.i [2021-11-06 18:42:06,079 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d06904c/a4effbfb5a7843e9ab59819c4ed7b313/FLAG5fdf0811e [2021-11-06 18:42:06,237 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/65d06904c/a4effbfb5a7843e9ab59819c4ed7b313 [2021-11-06 18:42:06,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:42:06,242 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:42:06,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:42:06,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:42:06,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:42:06,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:42:06" (1/1) ... [2021-11-06 18:42:06,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b6c6eab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:06, skipping insertion in model container [2021-11-06 18:42:06,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:42:06" (1/1) ... [2021-11-06 18:42:06,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:42:06,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:42:07,471 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_drivers-net-netconsole.cil.i[311030,311043] [2021-11-06 18:42:07,473 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_drivers-net-netconsole.cil.i[311196,311209] [2021-11-06 18:42:07,474 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_drivers-net-netconsole.cil.i[311360,311373] [2021-11-06 18:42:07,474 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_drivers-net-netconsole.cil.i[311525,311538] [2021-11-06 18:42:07,479 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:42:07,494 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:42:07,673 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_drivers-net-netconsole.cil.i[311030,311043] [2021-11-06 18:42:07,674 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_drivers-net-netconsole.cil.i[311196,311209] [2021-11-06 18:42:07,674 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_drivers-net-netconsole.cil.i[311360,311373] [2021-11-06 18:42:07,675 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_drivers-net-netconsole.cil.i[311525,311538] [2021-11-06 18:42:07,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:42:07,770 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:42:07,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07 WrapperNode [2021-11-06 18:42:07,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:42:07,772 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:42:07,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:42:07,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:42:07,776 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:07,829 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:42:08,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:42:08,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:42:08,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:42:08,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,246 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,611 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:42:08,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:42:08,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:42:08,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:42:08,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (1/1) ... [2021-11-06 18:42:08,625 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:42:08,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:42:08,681 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 18:42:08,746 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 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:42:08,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:42:08,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:42:08,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:42:08,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:42:15,184 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,184 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,184 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#13: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,184 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#15: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#14: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#16: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,185 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,186 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,186 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,186 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,186 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:42:15,186 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:42:15,204 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:42:15,204 INFO L299 CfgBuilder]: Removed 3647 assume(true) statements. [2021-11-06 18:42:15,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:42:15 BoogieIcfgContainer [2021-11-06 18:42:15,207 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:42:15,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:42:15,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:42:15,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:42:15,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:42:06" (1/3) ... [2021-11-06 18:42:15,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62de86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:42:15, skipping insertion in model container [2021-11-06 18:42:15,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:42:07" (2/3) ... [2021-11-06 18:42:15,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62de86c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:42:15, skipping insertion in model container [2021-11-06 18:42:15,212 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:42:15" (3/3) ... [2021-11-06 18:42:15,213 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-netconsole.cil.i [2021-11-06 18:42:15,216 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:42:15,216 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-11-06 18:42:15,252 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:42:15,256 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 18:42:15,256 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-11-06 18:42:15,297 INFO L276 IsEmpty]: Start isEmpty. Operand has 3652 states, 3624 states have (on average 1.3449227373068433) internal successors, (4874), 3651 states have internal predecessors, (4874), 0 states have call successors, (0), 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 18:42:15,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2021-11-06 18:42:15,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:15,313 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:15,313 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:15,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:15,317 INFO L85 PathProgramCache]: Analyzing trace with hash 1145313028, now seen corresponding path program 1 times [2021-11-06 18:42:15,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:15,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [194102851] [2021-11-06 18:42:15,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:15,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:15,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:15,941 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 18:42:15,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:15,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [194102851] [2021-11-06 18:42:15,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [194102851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:15,942 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:15,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:15,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616383287] [2021-11-06 18:42:15,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:15,947 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:15,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:15,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:15,961 INFO L87 Difference]: Start difference. First operand has 3652 states, 3624 states have (on average 1.3449227373068433) internal successors, (4874), 3651 states have internal predecessors, (4874), 0 states have call successors, (0), 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 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 18:42:17,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:17,277 INFO L93 Difference]: Finished difference Result 9183 states and 12327 transitions. [2021-11-06 18:42:17,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:17,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 241 [2021-11-06 18:42:17,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:17,304 INFO L225 Difference]: With dead ends: 9183 [2021-11-06 18:42:17,305 INFO L226 Difference]: Without dead ends: 5789 [2021-11-06 18:42:17,314 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 18:42:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2021-11-06 18:42:17,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5757. [2021-11-06 18:42:17,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5757 states, 5729 states have (on average 1.2860883225693838) internal successors, (7368), 5756 states have internal predecessors, (7368), 0 states have call successors, (0), 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 18:42:17,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5757 states to 5757 states and 7368 transitions. [2021-11-06 18:42:17,463 INFO L78 Accepts]: Start accepts. Automaton has 5757 states and 7368 transitions. Word has length 241 [2021-11-06 18:42:17,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:17,464 INFO L470 AbstractCegarLoop]: Abstraction has 5757 states and 7368 transitions. [2021-11-06 18:42:17,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 0 states have call successors, (0), 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 18:42:17,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5757 states and 7368 transitions. [2021-11-06 18:42:17,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-11-06 18:42:17,469 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:17,469 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:17,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:42:17,470 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:17,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:17,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1766192994, now seen corresponding path program 1 times [2021-11-06 18:42:17,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:17,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497867182] [2021-11-06 18:42:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:17,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:17,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:17,637 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 18:42:17,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:17,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497867182] [2021-11-06 18:42:17,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497867182] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:17,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:17,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:17,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380711502] [2021-11-06 18:42:17,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:17,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:17,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:17,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:17,641 INFO L87 Difference]: Start difference. First operand 5757 states and 7368 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 18:42:18,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:18,820 INFO L93 Difference]: Finished difference Result 13047 states and 16804 transitions. [2021-11-06 18:42:18,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:18,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 255 [2021-11-06 18:42:18,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:18,843 INFO L225 Difference]: With dead ends: 13047 [2021-11-06 18:42:18,843 INFO L226 Difference]: Without dead ends: 7886 [2021-11-06 18:42:18,852 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 18:42:18,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7886 states. [2021-11-06 18:42:19,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7886 to 7760. [2021-11-06 18:42:19,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7760 states, 7732 states have (on average 1.291386445938955) internal successors, (9985), 7759 states have internal predecessors, (9985), 0 states have call successors, (0), 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 18:42:19,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7760 states to 7760 states and 9985 transitions. [2021-11-06 18:42:19,104 INFO L78 Accepts]: Start accepts. Automaton has 7760 states and 9985 transitions. Word has length 255 [2021-11-06 18:42:19,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:19,105 INFO L470 AbstractCegarLoop]: Abstraction has 7760 states and 9985 transitions. [2021-11-06 18:42:19,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 0 states have call successors, (0), 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 18:42:19,105 INFO L276 IsEmpty]: Start isEmpty. Operand 7760 states and 9985 transitions. [2021-11-06 18:42:19,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2021-11-06 18:42:19,109 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:19,109 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:19,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:42:19,109 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:19,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:19,110 INFO L85 PathProgramCache]: Analyzing trace with hash -196580125, now seen corresponding path program 1 times [2021-11-06 18:42:19,110 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:19,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043924808] [2021-11-06 18:42:19,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:19,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:19,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:19,256 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 18:42:19,257 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:19,257 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043924808] [2021-11-06 18:42:19,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043924808] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:19,257 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:19,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:19,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541095319] [2021-11-06 18:42:19,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:19,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:19,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:19,259 INFO L87 Difference]: Start difference. First operand 7760 states and 9985 transitions. Second operand has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:42:20,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:20,111 INFO L93 Difference]: Finished difference Result 19034 states and 24626 transitions. [2021-11-06 18:42:20,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:20,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 256 [2021-11-06 18:42:20,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:20,145 INFO L225 Difference]: With dead ends: 19034 [2021-11-06 18:42:20,145 INFO L226 Difference]: Without dead ends: 11870 [2021-11-06 18:42:20,156 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 18:42:20,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11870 states. [2021-11-06 18:42:20,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11870 to 11742. [2021-11-06 18:42:20,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11742 states, 11714 states have (on average 1.2961413693016903) internal successors, (15183), 11741 states have internal predecessors, (15183), 0 states have call successors, (0), 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 18:42:20,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11742 states to 11742 states and 15183 transitions. [2021-11-06 18:42:20,460 INFO L78 Accepts]: Start accepts. Automaton has 11742 states and 15183 transitions. Word has length 256 [2021-11-06 18:42:20,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:20,461 INFO L470 AbstractCegarLoop]: Abstraction has 11742 states and 15183 transitions. [2021-11-06 18:42:20,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.33333333333333) internal successors, (256), 3 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 18:42:20,461 INFO L276 IsEmpty]: Start isEmpty. Operand 11742 states and 15183 transitions. [2021-11-06 18:42:20,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2021-11-06 18:42:20,465 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:20,466 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:20,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:42:20,466 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:20,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:20,467 INFO L85 PathProgramCache]: Analyzing trace with hash 251130179, now seen corresponding path program 1 times [2021-11-06 18:42:20,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:20,467 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041704681] [2021-11-06 18:42:20,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:20,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:20,640 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 18:42:20,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:20,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041704681] [2021-11-06 18:42:20,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041704681] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:20,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:20,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:20,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523242875] [2021-11-06 18:42:20,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:20,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:20,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:20,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:20,642 INFO L87 Difference]: Start difference. First operand 11742 states and 15183 transitions. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 18:42:22,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:22,320 INFO L93 Difference]: Finished difference Result 30666 states and 39815 transitions. [2021-11-06 18:42:22,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:22,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 257 [2021-11-06 18:42:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:22,367 INFO L225 Difference]: With dead ends: 30666 [2021-11-06 18:42:22,368 INFO L226 Difference]: Without dead ends: 19520 [2021-11-06 18:42:22,391 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 18:42:22,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19520 states. [2021-11-06 18:42:22,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19520 to 19390. [2021-11-06 18:42:22,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19390 states, 19362 states have (on average 1.2995558310091933) internal successors, (25162), 19389 states have internal predecessors, (25162), 0 states have call successors, (0), 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 18:42:22,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19390 states to 19390 states and 25162 transitions. [2021-11-06 18:42:22,940 INFO L78 Accepts]: Start accepts. Automaton has 19390 states and 25162 transitions. Word has length 257 [2021-11-06 18:42:22,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:22,940 INFO L470 AbstractCegarLoop]: Abstraction has 19390 states and 25162 transitions. [2021-11-06 18:42:22,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 0 states have call successors, (0), 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 18:42:22,941 INFO L276 IsEmpty]: Start isEmpty. Operand 19390 states and 25162 transitions. [2021-11-06 18:42:22,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-11-06 18:42:22,944 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:22,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:22,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:42:22,945 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:22,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:22,945 INFO L85 PathProgramCache]: Analyzing trace with hash 728372904, now seen corresponding path program 1 times [2021-11-06 18:42:22,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:22,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94257361] [2021-11-06 18:42:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:22,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:23,093 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 18:42:23,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:23,093 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94257361] [2021-11-06 18:42:23,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94257361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:23,094 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:23,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:23,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058720423] [2021-11-06 18:42:23,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:23,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:23,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:23,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:23,095 INFO L87 Difference]: Start difference. First operand 19390 states and 25162 transitions. Second operand has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 18:42:24,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:24,977 INFO L93 Difference]: Finished difference Result 52862 states and 68790 transitions. [2021-11-06 18:42:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:24,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 258 [2021-11-06 18:42:24,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:25,059 INFO L225 Difference]: With dead ends: 52862 [2021-11-06 18:42:25,059 INFO L226 Difference]: Without dead ends: 34068 [2021-11-06 18:42:25,094 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 18:42:25,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34068 states. [2021-11-06 18:42:25,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34068 to 33936. [2021-11-06 18:42:25,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33936 states, 33908 states have (on average 1.3016397310369234) internal successors, (44136), 33935 states have internal predecessors, (44136), 0 states have call successors, (0), 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 18:42:26,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33936 states to 33936 states and 44136 transitions. [2021-11-06 18:42:26,050 INFO L78 Accepts]: Start accepts. Automaton has 33936 states and 44136 transitions. Word has length 258 [2021-11-06 18:42:26,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:26,051 INFO L470 AbstractCegarLoop]: Abstraction has 33936 states and 44136 transitions. [2021-11-06 18:42:26,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.0) internal successors, (258), 3 states have internal predecessors, (258), 0 states have call successors, (0), 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 18:42:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 33936 states and 44136 transitions. [2021-11-06 18:42:26,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-11-06 18:42:26,060 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:26,060 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:26,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:42:26,060 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:26,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:26,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1600673176, now seen corresponding path program 1 times [2021-11-06 18:42:26,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:26,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135793952] [2021-11-06 18:42:26,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:26,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:26,208 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 18:42:26,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:26,209 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135793952] [2021-11-06 18:42:26,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135793952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:26,209 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:26,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:26,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468478651] [2021-11-06 18:42:26,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:26,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:26,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:26,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:26,211 INFO L87 Difference]: Start difference. First operand 33936 states and 44136 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 18:42:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:28,763 INFO L93 Difference]: Finished difference Result 94590 states and 123243 transitions. [2021-11-06 18:42:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:28,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 259 [2021-11-06 18:42:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:28,900 INFO L225 Difference]: With dead ends: 94590 [2021-11-06 18:42:28,900 INFO L226 Difference]: Without dead ends: 61250 [2021-11-06 18:42:28,965 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 18:42:29,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61250 states. [2021-11-06 18:42:30,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61250 to 61116. [2021-11-06 18:42:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61116 states, 61088 states have (on average 1.3025962545835517) internal successors, (79573), 61115 states have internal predecessors, (79573), 0 states have call successors, (0), 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 18:42:30,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61116 states to 61116 states and 79573 transitions. [2021-11-06 18:42:30,345 INFO L78 Accepts]: Start accepts. Automaton has 61116 states and 79573 transitions. Word has length 259 [2021-11-06 18:42:30,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:30,346 INFO L470 AbstractCegarLoop]: Abstraction has 61116 states and 79573 transitions. [2021-11-06 18:42:30,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 18:42:30,346 INFO L276 IsEmpty]: Start isEmpty. Operand 61116 states and 79573 transitions. [2021-11-06 18:42:30,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-11-06 18:42:30,482 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:30,482 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:30,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:42:30,483 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:30,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:30,483 INFO L85 PathProgramCache]: Analyzing trace with hash 501710317, now seen corresponding path program 1 times [2021-11-06 18:42:30,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:30,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378264455] [2021-11-06 18:42:30,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:30,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:30,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:30,647 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 18:42:30,648 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:30,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378264455] [2021-11-06 18:42:30,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378264455] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:30,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:30,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:30,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302619932] [2021-11-06 18:42:30,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:30,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:30,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:30,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:30,650 INFO L87 Difference]: Start difference. First operand 61116 states and 79573 transitions. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 18:42:34,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:34,238 INFO L93 Difference]: Finished difference Result 171464 states and 223465 transitions. [2021-11-06 18:42:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:34,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2021-11-06 18:42:34,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:34,643 INFO L225 Difference]: With dead ends: 171464 [2021-11-06 18:42:34,644 INFO L226 Difference]: Without dead ends: 110944 [2021-11-06 18:42:34,761 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 18:42:34,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110944 states. [2021-11-06 18:42:36,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110944 to 110808. [2021-11-06 18:42:36,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110808 states, 110780 states have (on average 1.3023650478425708) internal successors, (144276), 110807 states have internal predecessors, (144276), 0 states have call successors, (0), 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 18:42:37,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110808 states to 110808 states and 144276 transitions. [2021-11-06 18:42:37,199 INFO L78 Accepts]: Start accepts. Automaton has 110808 states and 144276 transitions. Word has length 260 [2021-11-06 18:42:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:37,199 INFO L470 AbstractCegarLoop]: Abstraction has 110808 states and 144276 transitions. [2021-11-06 18:42:37,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 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 18:42:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 110808 states and 144276 transitions. [2021-11-06 18:42:37,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2021-11-06 18:42:37,202 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:37,203 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:37,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:42:37,203 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:37,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:37,203 INFO L85 PathProgramCache]: Analyzing trace with hash 593632461, now seen corresponding path program 1 times [2021-11-06 18:42:37,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:37,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513761726] [2021-11-06 18:42:37,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:37,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:37,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:37,358 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 18:42:37,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:37,358 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513761726] [2021-11-06 18:42:37,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513761726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:37,359 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:37,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:37,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902440406] [2021-11-06 18:42:37,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:37,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:37,360 INFO L87 Difference]: Start difference. First operand 110808 states and 144276 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 18:42:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:41,881 INFO L93 Difference]: Finished difference Result 312205 states and 406646 transitions. [2021-11-06 18:42:41,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:41,882 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2021-11-06 18:42:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:42,381 INFO L225 Difference]: With dead ends: 312205 [2021-11-06 18:42:42,381 INFO L226 Difference]: Without dead ends: 201993 [2021-11-06 18:42:42,526 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 18:42:42,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201993 states. [2021-11-06 18:42:46,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201993 to 201855. [2021-11-06 18:42:47,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201855 states, 201827 states have (on average 1.3010746827728699) internal successors, (262592), 201854 states have internal predecessors, (262592), 0 states have call successors, (0), 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 18:42:47,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201855 states to 201855 states and 262592 transitions. [2021-11-06 18:42:47,671 INFO L78 Accepts]: Start accepts. Automaton has 201855 states and 262592 transitions. Word has length 261 [2021-11-06 18:42:47,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:42:47,672 INFO L470 AbstractCegarLoop]: Abstraction has 201855 states and 262592 transitions. [2021-11-06 18:42:47,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 18:42:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 201855 states and 262592 transitions. [2021-11-06 18:42:47,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-11-06 18:42:47,675 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:42:47,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:42:47,675 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:42:47,676 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 25 more)] === [2021-11-06 18:42:47,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:42:47,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1562398350, now seen corresponding path program 1 times [2021-11-06 18:42:47,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:42:47,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79645022] [2021-11-06 18:42:47,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:42:47,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:42:47,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:42:47,831 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 18:42:47,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:42:47,831 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79645022] [2021-11-06 18:42:47,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79645022] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:42:47,832 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:42:47,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:42:47,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756483295] [2021-11-06 18:42:47,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:42:47,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:42:47,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:42:47,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:42:47,833 INFO L87 Difference]: Start difference. First operand 201855 states and 262592 transitions. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 18:42:55,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:42:55,943 INFO L93 Difference]: Finished difference Result 568290 states and 739641 transitions. [2021-11-06 18:42:55,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:42:55,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 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 262 [2021-11-06 18:42:55,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:42:56,932 INFO L225 Difference]: With dead ends: 568290 [2021-11-06 18:42:56,932 INFO L226 Difference]: Without dead ends: 367031 [2021-11-06 18:42:57,225 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 18:42:57,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367031 states.