./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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.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 a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 18:57:43,018 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 18:57:43,020 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 18:57:43,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 18:57:43,072 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 18:57:43,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 18:57:43,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 18:57:43,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 18:57:43,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 18:57:43,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 18:57:43,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 18:57:43,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 18:57:43,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 18:57:43,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 18:57:43,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 18:57:43,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 18:57:43,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 18:57:43,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 18:57:43,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 18:57:43,108 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 18:57:43,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 18:57:43,116 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 18:57:43,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 18:57:43,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 18:57:43,119 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 18:57:43,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 18:57:43,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 18:57:43,120 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 18:57:43,120 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 18:57:43,123 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 18:57:43,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 18:57:43,124 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 18:57:43,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 18:57:43,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 18:57:43,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 18:57:43,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 18:57:43,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 18:57:43,129 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 18:57:43,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 18:57:43,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 18:57:43,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 18:57:43,131 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 18:57:43,158 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 18:57:43,158 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 18:57:43,159 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 18:57:43,159 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 18:57:43,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 18:57:43,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 18:57:43,160 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 18:57:43,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 18:57:43,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 18:57:43,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 18:57:43,162 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 18:57:43,162 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 18:57:43,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 18:57:43,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 18:57:43,162 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 18:57:43,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 18:57:43,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 18:57:43,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 18:57:43,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 18:57:43,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:57:43,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 18:57:43,164 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 18:57:43,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 18:57:43,165 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 18:57:43,165 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a17c24f91a3bb3d64b949ed6598dfddc35ec4ff57290faa768ce9df2bba8e700 [2021-11-06 18:57:43,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 18:57:43,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 18:57:43,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 18:57:43,339 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 18:57:43,340 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 18:57:43,340 INFO L432 ainManager$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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-06 18:57:43,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f171a1b25/9e81e64b91494b948e981115b8965ff3/FLAG0a9760fa2 [2021-11-06 18:57:44,092 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 18:57:44,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-06 18:57:44,137 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f171a1b25/9e81e64b91494b948e981115b8965ff3/FLAG0a9760fa2 [2021-11-06 18:57:44,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f171a1b25/9e81e64b91494b948e981115b8965ff3 [2021-11-06 18:57:44,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 18:57:44,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 18:57:44,375 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 18:57:44,375 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 18:57:44,378 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 18:57:44,378 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:44" (1/1) ... [2021-11-06 18:57:44,379 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395b828b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:44, skipping insertion in model container [2021-11-06 18:57:44,379 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:57:44" (1/1) ... [2021-11-06 18:57:44,383 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 18:57:44,462 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 18:57:46,671 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-06 18:57:46,673 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-06 18:57:46,674 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-06 18:57:46,674 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-06 18:57:46,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:57:46,753 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 18:57:46,999 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396127,396140] [2021-11-06 18:57:47,000 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396296,396309] [2021-11-06 18:57:47,001 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396463,396476] [2021-11-06 18:57:47,001 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-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i[396631,396644] [2021-11-06 18:57:47,007 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 18:57:47,195 INFO L208 MainTranslator]: Completed translation [2021-11-06 18:57:47,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47 WrapperNode [2021-11-06 18:57:47,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 18:57:47,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 18:57:47,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 18:57:47,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 18:57:47,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:47,294 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:47,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 18:57:47,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 18:57:47,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 18:57:47,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 18:57:47,702 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:47,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:47,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:47,788 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:48,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:48,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:48,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:48,550 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 18:57:48,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 18:57:48,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 18:57:48,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 18:57:48,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (1/1) ... [2021-11-06 18:57:48,562 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 18:57:48,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 18:57:48,620 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 18:57:48,675 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 18:57:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 18:57:48,707 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 18:57:48,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 18:57:48,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 18:57:48,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 18:57:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 18:57:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2021-11-06 18:57:59,452 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,453 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,453 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 18:57:59,453 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 18:57:59,454 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 18:57:59,454 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 18:57:59,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 18:57:59,475 INFO L299 CfgBuilder]: Removed 5420 assume(true) statements. [2021-11-06 18:57:59,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:59 BoogieIcfgContainer [2021-11-06 18:57:59,481 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 18:57:59,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 18:57:59,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 18:57:59,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 18:57:59,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:57:44" (1/3) ... [2021-11-06 18:57:59,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc70c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:59, skipping insertion in model container [2021-11-06 18:57:59,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:57:47" (2/3) ... [2021-11-06 18:57:59,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4bc70c3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:57:59, skipping insertion in model container [2021-11-06 18:57:59,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:57:59" (3/3) ... [2021-11-06 18:57:59,486 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-atheros-atlx-atl2.cil.i [2021-11-06 18:57:59,491 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 18:57:59,491 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 62 error locations. [2021-11-06 18:57:59,534 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 18:57:59,538 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 18:57:59,538 INFO L340 AbstractCegarLoop]: Starting to check reachability of 62 error locations. [2021-11-06 18:57:59,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 4888 states, 4826 states have (on average 1.325528387898881) internal successors, (6397), 4887 states have internal predecessors, (6397), 0 states have call successors, (0), 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 18:57:59,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-06 18:57:59,588 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:57:59,588 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] [2021-11-06 18:57:59,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:57:59,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:57:59,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1690076153, now seen corresponding path program 1 times [2021-11-06 18:57:59,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:57:59,597 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643790235] [2021-11-06 18:57:59,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:57:59,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:57:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:57:59,906 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 18:57:59,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:57:59,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643790235] [2021-11-06 18:57:59,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643790235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:57:59,907 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:57:59,907 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:57:59,908 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171788605] [2021-11-06 18:57:59,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:57:59,911 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:57:59,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:57:59,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:57:59,926 INFO L87 Difference]: Start difference. First operand has 4888 states, 4826 states have (on average 1.325528387898881) internal successors, (6397), 4887 states have internal predecessors, (6397), 0 states have call successors, (0), 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 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 18:58:01,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:01,158 INFO L93 Difference]: Finished difference Result 13916 states and 18124 transitions. [2021-11-06 18:58:01,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:01,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2021-11-06 18:58:01,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:01,205 INFO L225 Difference]: With dead ends: 13916 [2021-11-06 18:58:01,205 INFO L226 Difference]: Without dead ends: 8857 [2021-11-06 18:58:01,222 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 18:58:01,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8857 states. [2021-11-06 18:58:01,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8857 to 8793. [2021-11-06 18:58:01,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8793 states, 8731 states have (on average 1.2662925209025313) internal successors, (11056), 8792 states have internal predecessors, (11056), 0 states have call successors, (0), 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 18:58:01,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8793 states to 8793 states and 11056 transitions. [2021-11-06 18:58:01,472 INFO L78 Accepts]: Start accepts. Automaton has 8793 states and 11056 transitions. Word has length 54 [2021-11-06 18:58:01,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:01,473 INFO L470 AbstractCegarLoop]: Abstraction has 8793 states and 11056 transitions. [2021-11-06 18:58:01,473 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 0 states have call successors, (0), 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 18:58:01,473 INFO L276 IsEmpty]: Start isEmpty. Operand 8793 states and 11056 transitions. [2021-11-06 18:58:01,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 18:58:01,479 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:01,479 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] [2021-11-06 18:58:01,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 18:58:01,480 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:01,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:01,482 INFO L85 PathProgramCache]: Analyzing trace with hash 511234318, now seen corresponding path program 1 times [2021-11-06 18:58:01,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:01,483 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678791693] [2021-11-06 18:58:01,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:01,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:01,680 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 18:58:01,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:01,681 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678791693] [2021-11-06 18:58:01,681 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678791693] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:01,681 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:01,681 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:01,681 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861142786] [2021-11-06 18:58:01,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:01,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:01,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:01,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:01,686 INFO L87 Difference]: Start difference. First operand 8793 states and 11056 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 18:58:03,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:03,230 INFO L93 Difference]: Finished difference Result 24437 states and 30846 transitions. [2021-11-06 18:58:03,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:03,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2021-11-06 18:58:03,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:03,278 INFO L225 Difference]: With dead ends: 24437 [2021-11-06 18:58:03,279 INFO L226 Difference]: Without dead ends: 15752 [2021-11-06 18:58:03,293 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 18:58:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15752 states. [2021-11-06 18:58:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15752 to 14760. [2021-11-06 18:58:03,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14760 states, 14698 states have (on average 1.280242209824466) internal successors, (18817), 14759 states have internal predecessors, (18817), 0 states have call successors, (0), 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 18:58:03,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14760 states to 14760 states and 18817 transitions. [2021-11-06 18:58:03,712 INFO L78 Accepts]: Start accepts. Automaton has 14760 states and 18817 transitions. Word has length 57 [2021-11-06 18:58:03,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:03,713 INFO L470 AbstractCegarLoop]: Abstraction has 14760 states and 18817 transitions. [2021-11-06 18:58:03,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 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 18:58:03,714 INFO L276 IsEmpty]: Start isEmpty. Operand 14760 states and 18817 transitions. [2021-11-06 18:58:03,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 18:58:03,716 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:03,716 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] [2021-11-06 18:58:03,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 18:58:03,717 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:03,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:03,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1200372781, now seen corresponding path program 1 times [2021-11-06 18:58:03,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:03,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326326425] [2021-11-06 18:58:03,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:03,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:03,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:03,823 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 18:58:03,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:03,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326326425] [2021-11-06 18:58:03,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326326425] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:03,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:03,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:03,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023681384] [2021-11-06 18:58:03,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:03,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:03,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:03,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:03,825 INFO L87 Difference]: Start difference. First operand 14760 states and 18817 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 18:58:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:04,904 INFO L93 Difference]: Finished difference Result 43016 states and 54859 transitions. [2021-11-06 18:58:04,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:04,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2021-11-06 18:58:04,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:04,967 INFO L225 Difference]: With dead ends: 43016 [2021-11-06 18:58:04,967 INFO L226 Difference]: Without dead ends: 28364 [2021-11-06 18:58:04,989 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 18:58:05,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28364 states. [2021-11-06 18:58:05,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28364 to 27724. [2021-11-06 18:58:05,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27724 states, 27662 states have (on average 1.2830959438941507) internal successors, (35493), 27723 states have internal predecessors, (35493), 0 states have call successors, (0), 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 18:58:05,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27724 states to 27724 states and 35493 transitions. [2021-11-06 18:58:05,485 INFO L78 Accepts]: Start accepts. Automaton has 27724 states and 35493 transitions. Word has length 58 [2021-11-06 18:58:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:05,487 INFO L470 AbstractCegarLoop]: Abstraction has 27724 states and 35493 transitions. [2021-11-06 18:58:05,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 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 18:58:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 27724 states and 35493 transitions. [2021-11-06 18:58:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-11-06 18:58:05,489 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:05,489 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] [2021-11-06 18:58:05,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 18:58:05,490 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:05,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:05,490 INFO L85 PathProgramCache]: Analyzing trace with hash -771378385, now seen corresponding path program 1 times [2021-11-06 18:58:05,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:05,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782565126] [2021-11-06 18:58:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:05,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:05,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:05,605 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 18:58:05,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:05,606 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782565126] [2021-11-06 18:58:05,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782565126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:05,606 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:05,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:05,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375744263] [2021-11-06 18:58:05,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:05,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:05,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:05,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:05,608 INFO L87 Difference]: Start difference. First operand 27724 states and 35493 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 18:58:07,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:07,116 INFO L93 Difference]: Finished difference Result 74334 states and 95107 transitions. [2021-11-06 18:58:07,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:07,116 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2021-11-06 18:58:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:07,215 INFO L225 Difference]: With dead ends: 74334 [2021-11-06 18:58:07,216 INFO L226 Difference]: Without dead ends: 46718 [2021-11-06 18:58:07,264 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 18:58:07,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46718 states. [2021-11-06 18:58:08,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46718 to 46252. [2021-11-06 18:58:08,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46252 states, 46190 states have (on average 1.2819441437540593) internal successors, (59213), 46251 states have internal predecessors, (59213), 0 states have call successors, (0), 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 18:58:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46252 states to 46252 states and 59213 transitions. [2021-11-06 18:58:08,432 INFO L78 Accepts]: Start accepts. Automaton has 46252 states and 59213 transitions. Word has length 74 [2021-11-06 18:58:08,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:08,433 INFO L470 AbstractCegarLoop]: Abstraction has 46252 states and 59213 transitions. [2021-11-06 18:58:08,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 18:58:08,434 INFO L276 IsEmpty]: Start isEmpty. Operand 46252 states and 59213 transitions. [2021-11-06 18:58:08,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 18:58:08,436 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:08,436 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:58:08,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 18:58:08,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:08,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:08,437 INFO L85 PathProgramCache]: Analyzing trace with hash -134515053, now seen corresponding path program 1 times [2021-11-06 18:58:08,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:08,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707958050] [2021-11-06 18:58:08,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:08,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:08,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 18:58:08,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:08,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707958050] [2021-11-06 18:58:08,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707958050] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:08,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:08,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:08,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92482025] [2021-11-06 18:58:08,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:08,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:08,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:08,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:08,592 INFO L87 Difference]: Start difference. First operand 46252 states and 59213 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:58:10,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:10,689 INFO L93 Difference]: Finished difference Result 92444 states and 118321 transitions. [2021-11-06 18:58:10,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:10,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2021-11-06 18:58:10,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:10,823 INFO L225 Difference]: With dead ends: 92444 [2021-11-06 18:58:10,823 INFO L226 Difference]: Without dead ends: 69183 [2021-11-06 18:58:10,895 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 18:58:10,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69183 states. [2021-11-06 18:58:12,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69183 to 69105. [2021-11-06 18:58:12,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69105 states, 69043 states have (on average 1.2822878496009733) internal successors, (88533), 69104 states have internal predecessors, (88533), 0 states have call successors, (0), 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 18:58:12,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69105 states to 69105 states and 88533 transitions. [2021-11-06 18:58:12,501 INFO L78 Accepts]: Start accepts. Automaton has 69105 states and 88533 transitions. Word has length 79 [2021-11-06 18:58:12,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:12,502 INFO L470 AbstractCegarLoop]: Abstraction has 69105 states and 88533 transitions. [2021-11-06 18:58:12,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 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 18:58:12,504 INFO L276 IsEmpty]: Start isEmpty. Operand 69105 states and 88533 transitions. [2021-11-06 18:58:12,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 18:58:12,505 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:12,506 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:58:12,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 18:58:12,506 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:12,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:12,506 INFO L85 PathProgramCache]: Analyzing trace with hash 123650385, now seen corresponding path program 1 times [2021-11-06 18:58:12,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:12,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851562335] [2021-11-06 18:58:12,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:12,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:12,631 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:58:12,632 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:12,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851562335] [2021-11-06 18:58:12,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851562335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:12,632 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:12,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:12,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235348390] [2021-11-06 18:58:12,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:58:12,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:12,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:58:12,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:58:12,634 INFO L87 Difference]: Start difference. First operand 69105 states and 88533 transitions. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 18:58:13,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:13,964 INFO L93 Difference]: Finished difference Result 69105 states and 88533 transitions. [2021-11-06 18:58:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:58:13,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 79 [2021-11-06 18:58:13,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:14,082 INFO L225 Difference]: With dead ends: 69105 [2021-11-06 18:58:14,082 INFO L226 Difference]: Without dead ends: 69101 [2021-11-06 18:58:14,106 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:58:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69101 states. [2021-11-06 18:58:15,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69101 to 69101. [2021-11-06 18:58:15,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69101 states, 69041 states have (on average 1.2822670587042482) internal successors, (88529), 69100 states have internal predecessors, (88529), 0 states have call successors, (0), 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 18:58:15,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69101 states to 69101 states and 88529 transitions. [2021-11-06 18:58:15,944 INFO L78 Accepts]: Start accepts. Automaton has 69101 states and 88529 transitions. Word has length 79 [2021-11-06 18:58:15,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:15,945 INFO L470 AbstractCegarLoop]: Abstraction has 69101 states and 88529 transitions. [2021-11-06 18:58:15,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 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 18:58:15,945 INFO L276 IsEmpty]: Start isEmpty. Operand 69101 states and 88529 transitions. [2021-11-06 18:58:15,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-06 18:58:15,948 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:15,948 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:58:15,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 18:58:15,948 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:15,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:15,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1430919756, now seen corresponding path program 1 times [2021-11-06 18:58:15,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:15,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846517819] [2021-11-06 18:58:15,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:15,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:58:16,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:16,143 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846517819] [2021-11-06 18:58:16,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846517819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:16,143 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:16,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:16,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592653648] [2021-11-06 18:58:16,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:58:16,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:16,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:58:16,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:58:16,145 INFO L87 Difference]: Start difference. First operand 69101 states and 88529 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:58:17,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:17,443 INFO L93 Difference]: Finished difference Result 69101 states and 88529 transitions. [2021-11-06 18:58:17,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:58:17,444 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 81 [2021-11-06 18:58:17,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:17,562 INFO L225 Difference]: With dead ends: 69101 [2021-11-06 18:58:17,563 INFO L226 Difference]: Without dead ends: 69097 [2021-11-06 18:58:17,586 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:58:17,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69097 states. [2021-11-06 18:58:19,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69097 to 69097. [2021-11-06 18:58:19,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69097 states, 69039 states have (on average 1.2822462666029346) internal successors, (88525), 69096 states have internal predecessors, (88525), 0 states have call successors, (0), 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 18:58:19,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69097 states to 69097 states and 88525 transitions. [2021-11-06 18:58:19,509 INFO L78 Accepts]: Start accepts. Automaton has 69097 states and 88525 transitions. Word has length 81 [2021-11-06 18:58:19,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:19,510 INFO L470 AbstractCegarLoop]: Abstraction has 69097 states and 88525 transitions. [2021-11-06 18:58:19,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 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 18:58:19,510 INFO L276 IsEmpty]: Start isEmpty. Operand 69097 states and 88525 transitions. [2021-11-06 18:58:19,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2021-11-06 18:58:19,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:19,512 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:58:19,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 18:58:19,512 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:19,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:19,512 INFO L85 PathProgramCache]: Analyzing trace with hash -724205929, now seen corresponding path program 1 times [2021-11-06 18:58:19,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:19,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836282412] [2021-11-06 18:58:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:19,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:19,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:19,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:58:19,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:19,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836282412] [2021-11-06 18:58:19,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836282412] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:19,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:19,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:19,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304305851] [2021-11-06 18:58:19,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:58:19,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:19,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:58:19,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:58:19,678 INFO L87 Difference]: Start difference. First operand 69097 states and 88525 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 18:58:20,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:20,892 INFO L93 Difference]: Finished difference Result 69097 states and 88525 transitions. [2021-11-06 18:58:20,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:58:20,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 83 [2021-11-06 18:58:20,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:21,113 INFO L225 Difference]: With dead ends: 69097 [2021-11-06 18:58:21,114 INFO L226 Difference]: Without dead ends: 69093 [2021-11-06 18:58:21,137 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:58:21,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69093 states. [2021-11-06 18:58:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69093 to 69093. [2021-11-06 18:58:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69093 states, 69037 states have (on average 1.2822254732969278) internal successors, (88521), 69092 states have internal predecessors, (88521), 0 states have call successors, (0), 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 18:58:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69093 states to 69093 states and 88521 transitions. [2021-11-06 18:58:23,054 INFO L78 Accepts]: Start accepts. Automaton has 69093 states and 88521 transitions. Word has length 83 [2021-11-06 18:58:23,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:23,054 INFO L470 AbstractCegarLoop]: Abstraction has 69093 states and 88521 transitions. [2021-11-06 18:58:23,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 3 states have internal predecessors, (78), 0 states have call successors, (0), 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 18:58:23,055 INFO L276 IsEmpty]: Start isEmpty. Operand 69093 states and 88521 transitions. [2021-11-06 18:58:23,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 18:58:23,061 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:23,061 INFO L513 BasicCegarLoop]: trace histogram [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] [2021-11-06 18:58:23,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 18:58:23,062 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:23,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:23,062 INFO L85 PathProgramCache]: Analyzing trace with hash -177050630, now seen corresponding path program 1 times [2021-11-06 18:58:23,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:23,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852118199] [2021-11-06 18:58:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:23,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:23,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:23,212 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-06 18:58:23,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:23,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852118199] [2021-11-06 18:58:23,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852118199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:23,212 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:23,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:23,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18098240] [2021-11-06 18:58:23,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 18:58:23,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:23,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 18:58:23,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 18:58:23,214 INFO L87 Difference]: Start difference. First operand 69093 states and 88521 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 18:58:24,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:24,610 INFO L93 Difference]: Finished difference Result 69093 states and 88521 transitions. [2021-11-06 18:58:24,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 18:58:24,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 85 [2021-11-06 18:58:24,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:24,715 INFO L225 Difference]: With dead ends: 69093 [2021-11-06 18:58:24,715 INFO L226 Difference]: Without dead ends: 69089 [2021-11-06 18:58:24,742 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 18:58:24,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69089 states. [2021-11-06 18:58:26,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69089 to 69089. [2021-11-06 18:58:26,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69089 states, 69035 states have (on average 1.282204678786123) internal successors, (88517), 69088 states have internal predecessors, (88517), 0 states have call successors, (0), 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 18:58:26,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69089 states to 69089 states and 88517 transitions. [2021-11-06 18:58:26,679 INFO L78 Accepts]: Start accepts. Automaton has 69089 states and 88517 transitions. Word has length 85 [2021-11-06 18:58:26,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 18:58:26,679 INFO L470 AbstractCegarLoop]: Abstraction has 69089 states and 88517 transitions. [2021-11-06 18:58:26,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 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 18:58:26,679 INFO L276 IsEmpty]: Start isEmpty. Operand 69089 states and 88517 transitions. [2021-11-06 18:58:26,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-11-06 18:58:26,681 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 18:58:26,682 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] [2021-11-06 18:58:26,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-06 18:58:26,682 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 59 more)] === [2021-11-06 18:58:26,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 18:58:26,682 INFO L85 PathProgramCache]: Analyzing trace with hash 213884402, now seen corresponding path program 1 times [2021-11-06 18:58:26,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 18:58:26,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240836721] [2021-11-06 18:58:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 18:58:26,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 18:58:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 18:58:26,811 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 18:58:26,812 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 18:58:26,812 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240836721] [2021-11-06 18:58:26,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240836721] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 18:58:26,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 18:58:26,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 18:58:26,812 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881720856] [2021-11-06 18:58:26,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 18:58:26,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 18:58:26,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 18:58:26,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 18:58:26,814 INFO L87 Difference]: Start difference. First operand 69089 states and 88517 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 18:58:29,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 18:58:29,717 INFO L93 Difference]: Finished difference Result 126645 states and 162515 transitions. [2021-11-06 18:58:29,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 18:58:29,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 0 states have call successors, (0), 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 85 [2021-11-06 18:58:29,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 18:58:29,812 INFO L225 Difference]: With dead ends: 126645 [2021-11-06 18:58:29,813 INFO L226 Difference]: Without dead ends: 57664 [2021-11-06 18:58:29,874 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 18:58:29,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57664 states.