./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-alloc-spinlock_drivers-net-ethernet-fealnx.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 a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 19:56:12,106 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 19:56:12,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 19:56:12,150 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 19:56:12,151 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 19:56:12,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 19:56:12,156 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 19:56:12,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 19:56:12,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 19:56:12,169 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 19:56:12,170 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 19:56:12,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 19:56:12,174 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 19:56:12,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 19:56:12,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 19:56:12,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 19:56:12,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 19:56:12,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 19:56:12,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 19:56:12,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 19:56:12,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 19:56:12,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 19:56:12,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 19:56:12,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 19:56:12,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 19:56:12,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 19:56:12,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 19:56:12,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 19:56:12,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 19:56:12,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 19:56:12,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 19:56:12,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 19:56:12,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 19:56:12,203 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 19:56:12,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 19:56:12,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 19:56:12,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 19:56:12,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 19:56:12,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 19:56:12,207 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 19:56:12,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 19:56:12,208 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 19:56:12,241 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 19:56:12,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 19:56:12,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 19:56:12,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 19:56:12,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 19:56:12,245 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 19:56:12,245 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 19:56:12,245 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 19:56:12,246 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 19:56:12,246 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 19:56:12,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 19:56:12,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 19:56:12,248 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 19:56:12,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 19:56:12,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:56:12,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 19:56:12,249 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 19:56:12,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 19:56:12,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 19:56:12,250 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a3968cfb5889c9f3d7db25b50a6978e9654cfd81b83e3cceec28f5c030877771 [2021-11-05 19:56:12,559 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 19:56:12,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 19:56:12,577 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 19:56:12,579 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 19:56:12,579 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 19:56:12,581 INFO L432 ainManager$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-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-05 19:56:12,644 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30e85fb9/23883459574c48f4a4b5dd9ae6629b9f/FLAGd0feb0654 [2021-11-05 19:56:13,438 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 19:56:13,439 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-05 19:56:13,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30e85fb9/23883459574c48f4a4b5dd9ae6629b9f/FLAGd0feb0654 [2021-11-05 19:56:13,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d30e85fb9/23883459574c48f4a4b5dd9ae6629b9f [2021-11-05 19:56:13,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 19:56:13,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 19:56:13,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 19:56:13,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 19:56:13,644 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 19:56:13,645 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:56:13" (1/1) ... [2021-11-05 19:56:13,646 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32de0340 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:13, skipping insertion in model container [2021-11-05 19:56:13,647 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 07:56:13" (1/1) ... [2021-11-05 19:56:13,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 19:56:13,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 19:56:15,462 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-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2021-11-05 19:56:15,465 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-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2021-11-05 19:56:15,491 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:56:15,532 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 19:56:15,839 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-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320486,320499] [2021-11-05 19:56:15,839 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-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i[320631,320644] [2021-11-05 19:56:15,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 19:56:16,111 INFO L208 MainTranslator]: Completed translation [2021-11-05 19:56:16,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16 WrapperNode [2021-11-05 19:56:16,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 19:56:16,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 19:56:16,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 19:56:16,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 19:56:16,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:16,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:16,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 19:56:16,709 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 19:56:16,709 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 19:56:16,709 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 19:56:16,716 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:16,716 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:16,880 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:16,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:17,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:17,302 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:17,357 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:17,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 19:56:17,444 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 19:56:17,444 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 19:56:17,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 19:56:17,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (1/1) ... [2021-11-05 19:56:17,451 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 19:56:17,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 19:56:17,476 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) [2021-11-05 19:56:17,498 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 [2021-11-05 19:56:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 19:56:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 19:56:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 19:56:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 19:56:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 19:56:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 19:56:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 19:56:17,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 19:56:17,514 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 19:56:17,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 19:56:28,481 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-05 19:56:28,481 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-05 19:56:28,482 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 19:56:28,482 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 19:56:28,482 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 19:56:28,483 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 19:56:28,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 19:56:28,516 INFO L299 CfgBuilder]: Removed 3782 assume(true) statements. [2021-11-05 19:56:28,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:56:28 BoogieIcfgContainer [2021-11-05 19:56:28,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 19:56:28,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 19:56:28,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 19:56:28,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 19:56:28,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 07:56:13" (1/3) ... [2021-11-05 19:56:28,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e341129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:56:28, skipping insertion in model container [2021-11-05 19:56:28,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 07:56:16" (2/3) ... [2021-11-05 19:56:28,529 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e341129 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 07:56:28, skipping insertion in model container [2021-11-05 19:56:28,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 07:56:28" (3/3) ... [2021-11-05 19:56:28,531 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-fealnx.cil.i [2021-11-05 19:56:28,535 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 19:56:28,535 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 11 error locations. [2021-11-05 19:56:28,597 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 19:56:28,605 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 [2021-11-05 19:56:28,605 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2021-11-05 19:56:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand has 3583 states, 3572 states have (on average 1.3401455767077268) internal successors, (4787), 3582 states have internal predecessors, (4787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:28,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-05 19:56:28,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:28,684 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:28,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:28,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1143337837, now seen corresponding path program 1 times [2021-11-05 19:56:28,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:28,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806653378] [2021-11-05 19:56:28,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:28,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:29,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:29,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:29,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:29,352 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806653378] [2021-11-05 19:56:29,352 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806653378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:29,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:29,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:29,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874041861] [2021-11-05 19:56:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:29,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:29,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:29,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:29,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:29,410 INFO L87 Difference]: Start difference. First operand has 3583 states, 3572 states have (on average 1.3401455767077268) internal successors, (4787), 3582 states have internal predecessors, (4787), 0 states have call successors, (0), 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 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:31,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:31,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:31,970 INFO L93 Difference]: Finished difference Result 9911 states and 13262 transitions. [2021-11-05 19:56:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:31,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2021-11-05 19:56:31,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:32,016 INFO L225 Difference]: With dead ends: 9911 [2021-11-05 19:56:32,016 INFO L226 Difference]: Without dead ends: 6078 [2021-11-05 19:56:32,030 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.07ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:32,036 INFO L933 BasicCegarLoop]: 4730 mSDtfsCounter, 4058 mSDsluCounter, 4427 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 14 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2112.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4058 SdHoareTripleChecker+Valid, 9157 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 33.05ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2285.25ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:32,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4058 Valid, 9157 Invalid, 40 Unknown, 0 Unchecked, 33.05ms Time], IncrementalHoareTripleChecker [14 Valid, 25 Invalid, 1 Unknown, 0 Unchecked, 2285.25ms Time] [2021-11-05 19:56:32,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6078 states. [2021-11-05 19:56:32,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6078 to 5897. [2021-11-05 19:56:32,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5897 states, 5886 states have (on average 1.3134556574923548) internal successors, (7731), 5896 states have internal predecessors, (7731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:32,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5897 states to 5897 states and 7731 transitions. [2021-11-05 19:56:32,268 INFO L78 Accepts]: Start accepts. Automaton has 5897 states and 7731 transitions. Word has length 62 [2021-11-05 19:56:32,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:32,269 INFO L470 AbstractCegarLoop]: Abstraction has 5897 states and 7731 transitions. [2021-11-05 19:56:32,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:32,269 INFO L276 IsEmpty]: Start isEmpty. Operand 5897 states and 7731 transitions. [2021-11-05 19:56:32,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-05 19:56:32,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:32,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:32,275 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 19:56:32,275 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:32,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1561654553, now seen corresponding path program 1 times [2021-11-05 19:56:32,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:32,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578032624] [2021-11-05 19:56:32,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:32,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:32,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:32,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578032624] [2021-11-05 19:56:32,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578032624] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:32,481 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:32,481 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:32,481 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519952093] [2021-11-05 19:56:32,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:32,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:32,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:32,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:32,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:32,484 INFO L87 Difference]: Start difference. First operand 5897 states and 7731 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:34,524 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:35,095 INFO L93 Difference]: Finished difference Result 16499 states and 21609 transitions. [2021-11-05 19:56:35,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:35,096 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2021-11-05 19:56:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:35,138 INFO L225 Difference]: With dead ends: 16499 [2021-11-05 19:56:35,138 INFO L226 Difference]: Without dead ends: 10678 [2021-11-05 19:56:35,154 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.76ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:35,156 INFO L933 BasicCegarLoop]: 4402 mSDtfsCounter, 3721 mSDsluCounter, 4156 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2119.72ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3721 SdHoareTripleChecker+Valid, 8558 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 14.77ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2265.05ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:35,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3721 Valid, 8558 Invalid, 51 Unknown, 0 Unchecked, 14.77ms Time], IncrementalHoareTripleChecker [13 Valid, 37 Invalid, 1 Unknown, 0 Unchecked, 2265.05ms Time] [2021-11-05 19:56:35,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10678 states. [2021-11-05 19:56:35,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10678 to 10432. [2021-11-05 19:56:35,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10432 states, 10421 states have (on average 1.3129258228576912) internal successors, (13682), 10431 states have internal predecessors, (13682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:35,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10432 states to 10432 states and 13682 transitions. [2021-11-05 19:56:35,448 INFO L78 Accepts]: Start accepts. Automaton has 10432 states and 13682 transitions. Word has length 68 [2021-11-05 19:56:35,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:35,449 INFO L470 AbstractCegarLoop]: Abstraction has 10432 states and 13682 transitions. [2021-11-05 19:56:35,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:35,450 INFO L276 IsEmpty]: Start isEmpty. Operand 10432 states and 13682 transitions. [2021-11-05 19:56:35,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-05 19:56:35,458 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:35,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:35,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 19:56:35,459 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:35,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:35,459 INFO L85 PathProgramCache]: Analyzing trace with hash 228350482, now seen corresponding path program 1 times [2021-11-05 19:56:35,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:35,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354155172] [2021-11-05 19:56:35,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:35,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:35,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:35,653 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354155172] [2021-11-05 19:56:35,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354155172] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:35,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:35,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:35,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546110462] [2021-11-05 19:56:35,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:35,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:35,655 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:35,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:35,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:35,658 INFO L87 Difference]: Start difference. First operand 10432 states and 13682 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:37,697 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:38,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:38,349 INFO L93 Difference]: Finished difference Result 24432 states and 32108 transitions. [2021-11-05 19:56:38,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:38,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2021-11-05 19:56:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:38,412 INFO L225 Difference]: With dead ends: 24432 [2021-11-05 19:56:38,413 INFO L226 Difference]: Without dead ends: 14076 [2021-11-05 19:56:38,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.86ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:38,433 INFO L933 BasicCegarLoop]: 4993 mSDtfsCounter, 1746 mSDsluCounter, 4361 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2126.92ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 9354 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.05ms SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2282.36ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:38,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1746 Valid, 9354 Invalid, 88 Unknown, 0 Unchecked, 11.05ms Time], IncrementalHoareTripleChecker [17 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2282.36ms Time] [2021-11-05 19:56:38,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2021-11-05 19:56:38,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 14046. [2021-11-05 19:56:38,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14046 states, 14035 states have (on average 1.312718204488778) internal successors, (18424), 14045 states have internal predecessors, (18424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:38,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14046 states to 14046 states and 18424 transitions. [2021-11-05 19:56:38,882 INFO L78 Accepts]: Start accepts. Automaton has 14046 states and 18424 transitions. Word has length 71 [2021-11-05 19:56:38,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:38,883 INFO L470 AbstractCegarLoop]: Abstraction has 14046 states and 18424 transitions. [2021-11-05 19:56:38,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:38,884 INFO L276 IsEmpty]: Start isEmpty. Operand 14046 states and 18424 transitions. [2021-11-05 19:56:38,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-05 19:56:38,887 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:38,888 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:38,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 19:56:38,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:38,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:38,890 INFO L85 PathProgramCache]: Analyzing trace with hash 968917594, now seen corresponding path program 1 times [2021-11-05 19:56:38,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:38,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154978272] [2021-11-05 19:56:38,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:38,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:38,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:39,084 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:39,085 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154978272] [2021-11-05 19:56:39,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154978272] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:39,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:39,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:39,085 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282536623] [2021-11-05 19:56:39,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:39,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:39,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:39,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:39,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:39,089 INFO L87 Difference]: Start difference. First operand 14046 states and 18424 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:41,129 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:41,751 INFO L93 Difference]: Finished difference Result 41946 states and 55062 transitions. [2021-11-05 19:56:41,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:41,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2021-11-05 19:56:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:41,833 INFO L225 Difference]: With dead ends: 41946 [2021-11-05 19:56:41,834 INFO L226 Difference]: Without dead ends: 27976 [2021-11-05 19:56:41,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.81ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:41,871 INFO L933 BasicCegarLoop]: 4943 mSDtfsCounter, 4311 mSDsluCounter, 4402 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2058.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4311 SdHoareTripleChecker+Valid, 9345 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.49ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2168.83ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:41,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4311 Valid, 9345 Invalid, 21 Unknown, 0 Unchecked, 13.49ms Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 2168.83ms Time] [2021-11-05 19:56:41,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27976 states. [2021-11-05 19:56:42,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27976 to 27906. [2021-11-05 19:56:42,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27906 states, 27895 states have (on average 1.3134970424807313) internal successors, (36640), 27905 states have internal predecessors, (36640), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:42,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27906 states to 27906 states and 36640 transitions. [2021-11-05 19:56:42,676 INFO L78 Accepts]: Start accepts. Automaton has 27906 states and 36640 transitions. Word has length 77 [2021-11-05 19:56:42,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:42,677 INFO L470 AbstractCegarLoop]: Abstraction has 27906 states and 36640 transitions. [2021-11-05 19:56:42,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:42,678 INFO L276 IsEmpty]: Start isEmpty. Operand 27906 states and 36640 transitions. [2021-11-05 19:56:42,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 19:56:42,682 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:42,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:42,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-05 19:56:42,683 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:42,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:42,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1094154520, now seen corresponding path program 1 times [2021-11-05 19:56:42,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:42,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648077587] [2021-11-05 19:56:42,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:42,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:42,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:42,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:42,819 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648077587] [2021-11-05 19:56:42,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648077587] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:42,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:42,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:42,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231172114] [2021-11-05 19:56:42,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:42,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:42,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:42,820 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:42,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:42,821 INFO L87 Difference]: Start difference. First operand 27906 states and 36640 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:44,859 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:45,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:45,983 INFO L93 Difference]: Finished difference Result 77004 states and 101429 transitions. [2021-11-05 19:56:45,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:45,986 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2021-11-05 19:56:45,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:46,142 INFO L225 Difference]: With dead ends: 77004 [2021-11-05 19:56:46,143 INFO L226 Difference]: Without dead ends: 49174 [2021-11-05 19:56:46,216 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.34ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:46,218 INFO L933 BasicCegarLoop]: 4407 mSDtfsCounter, 3794 mSDsluCounter, 4344 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2132.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3794 SdHoareTripleChecker+Valid, 8751 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.74ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2284.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:46,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3794 Valid, 8751 Invalid, 80 Unknown, 0 Unchecked, 11.74ms Time], IncrementalHoareTripleChecker [9 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2284.00ms Time] [2021-11-05 19:56:46,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49174 states. [2021-11-05 19:56:47,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49174 to 48646. [2021-11-05 19:56:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48646 states, 48635 states have (on average 1.319461293307289) internal successors, (64172), 48645 states have internal predecessors, (64172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:47,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48646 states to 48646 states and 64172 transitions. [2021-11-05 19:56:47,625 INFO L78 Accepts]: Start accepts. Automaton has 48646 states and 64172 transitions. Word has length 84 [2021-11-05 19:56:47,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:47,625 INFO L470 AbstractCegarLoop]: Abstraction has 48646 states and 64172 transitions. [2021-11-05 19:56:47,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:47,626 INFO L276 IsEmpty]: Start isEmpty. Operand 48646 states and 64172 transitions. [2021-11-05 19:56:47,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-11-05 19:56:47,628 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:47,629 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-05 19:56:47,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-05 19:56:47,629 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:47,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:47,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1477356694, now seen corresponding path program 1 times [2021-11-05 19:56:47,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:47,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853558287] [2021-11-05 19:56:47,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:47,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:47,783 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:56:47,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:47,784 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853558287] [2021-11-05 19:56:47,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853558287] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:47,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:47,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:47,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70262428] [2021-11-05 19:56:47,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:47,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:47,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:47,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:47,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:47,787 INFO L87 Difference]: Start difference. First operand 48646 states and 64172 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:49,824 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:50,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:50,933 INFO L93 Difference]: Finished difference Result 97267 states and 128321 transitions. [2021-11-05 19:56:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:50,933 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 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 89 [2021-11-05 19:56:50,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:51,055 INFO L225 Difference]: With dead ends: 97267 [2021-11-05 19:56:51,055 INFO L226 Difference]: Without dead ends: 48697 [2021-11-05 19:56:51,138 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.41ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:51,139 INFO L933 BasicCegarLoop]: 4410 mSDtfsCounter, 74 mSDsluCounter, 4375 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2060.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 8785 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.77ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2215.80ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:51,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 8785 Invalid, 28 Unknown, 0 Unchecked, 5.77ms Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 2215.80ms Time] [2021-11-05 19:56:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48697 states. [2021-11-05 19:56:52,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48697 to 48697. [2021-11-05 19:56:52,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48697 states, 48686 states have (on average 1.3192704268167441) internal successors, (64230), 48696 states have internal predecessors, (64230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:52,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48697 states to 48697 states and 64230 transitions. [2021-11-05 19:56:52,307 INFO L78 Accepts]: Start accepts. Automaton has 48697 states and 64230 transitions. Word has length 89 [2021-11-05 19:56:52,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:52,307 INFO L470 AbstractCegarLoop]: Abstraction has 48697 states and 64230 transitions. [2021-11-05 19:56:52,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:52,308 INFO L276 IsEmpty]: Start isEmpty. Operand 48697 states and 64230 transitions. [2021-11-05 19:56:52,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 19:56:52,311 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:52,311 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:52,311 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-05 19:56:52,312 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:52,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:52,312 INFO L85 PathProgramCache]: Analyzing trace with hash 337540895, now seen corresponding path program 1 times [2021-11-05 19:56:52,312 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:52,313 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377512919] [2021-11-05 19:56:52,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:52,313 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:52,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 19:56:52,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:52,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377512919] [2021-11-05 19:56:52,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377512919] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:52,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:52,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:52,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259401479] [2021-11-05 19:56:52,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:52,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:52,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:52,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:52,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:52,633 INFO L87 Difference]: Start difference. First operand 48697 states and 64230 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:54,671 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:56:55,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:56:55,984 INFO L93 Difference]: Finished difference Result 108425 states and 143276 transitions. [2021-11-05 19:56:55,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:56:55,985 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 103 [2021-11-05 19:56:55,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:56:56,125 INFO L225 Difference]: With dead ends: 108425 [2021-11-05 19:56:56,126 INFO L226 Difference]: Without dead ends: 59855 [2021-11-05 19:56:56,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.85ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:56,234 INFO L933 BasicCegarLoop]: 6156 mSDtfsCounter, 1749 mSDsluCounter, 4346 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2137.20ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1749 SdHoareTripleChecker+Valid, 10502 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.34ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2262.00ms IncrementalHoareTripleChecker+Time [2021-11-05 19:56:56,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1749 Valid, 10502 Invalid, 86 Unknown, 0 Unchecked, 7.34ms Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 2262.00ms Time] [2021-11-05 19:56:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59855 states. [2021-11-05 19:56:57,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59855 to 59777. [2021-11-05 19:56:57,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59777 states, 59766 states have (on average 1.3197804771943915) internal successors, (78878), 59776 states have internal predecessors, (78878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:57,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59777 states to 59777 states and 78878 transitions. [2021-11-05 19:56:57,556 INFO L78 Accepts]: Start accepts. Automaton has 59777 states and 78878 transitions. Word has length 103 [2021-11-05 19:56:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:56:57,558 INFO L470 AbstractCegarLoop]: Abstraction has 59777 states and 78878 transitions. [2021-11-05 19:56:57,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 59777 states and 78878 transitions. [2021-11-05 19:56:57,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-05 19:56:57,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:56:57,561 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:56:57,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-05 19:56:57,562 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:56:57,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:56:57,563 INFO L85 PathProgramCache]: Analyzing trace with hash -1534737798, now seen corresponding path program 1 times [2021-11-05 19:56:57,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:56:57,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955369527] [2021-11-05 19:56:57,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:56:57,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:56:57,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:56:57,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:56:57,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:56:57,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955369527] [2021-11-05 19:56:57,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955369527] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:56:57,710 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:56:57,710 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:56:57,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511970996] [2021-11-05 19:56:57,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:56:57,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:56:57,711 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:56:57,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:56:57,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:56:57,712 INFO L87 Difference]: Start difference. First operand 59777 states and 78878 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:56:59,751 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:01,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:01,593 INFO L93 Difference]: Finished difference Result 177605 states and 234684 transitions. [2021-11-05 19:57:01,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:01,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 118 [2021-11-05 19:57:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:01,847 INFO L225 Difference]: With dead ends: 177605 [2021-11-05 19:57:01,847 INFO L226 Difference]: Without dead ends: 117955 [2021-11-05 19:57:01,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.72ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:01,932 INFO L933 BasicCegarLoop]: 5006 mSDtfsCounter, 4284 mSDsluCounter, 4394 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2056.03ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4284 SdHoareTripleChecker+Valid, 9400 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.67ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2151.71ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:01,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4284 Valid, 9400 Invalid, 25 Unknown, 0 Unchecked, 6.67ms Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 1 Unknown, 0 Unchecked, 2151.71ms Time] [2021-11-05 19:57:02,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117955 states. [2021-11-05 19:57:04,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117955 to 117933. [2021-11-05 19:57:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117933 states, 117922 states have (on average 1.3211614457013958) internal successors, (155794), 117932 states have internal predecessors, (155794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:04,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117933 states to 117933 states and 155794 transitions. [2021-11-05 19:57:04,688 INFO L78 Accepts]: Start accepts. Automaton has 117933 states and 155794 transitions. Word has length 118 [2021-11-05 19:57:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:04,689 INFO L470 AbstractCegarLoop]: Abstraction has 117933 states and 155794 transitions. [2021-11-05 19:57:04,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:04,689 INFO L276 IsEmpty]: Start isEmpty. Operand 117933 states and 155794 transitions. [2021-11-05 19:57:04,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-11-05 19:57:04,693 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:04,693 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:04,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-05 19:57:04,694 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:57:04,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:04,694 INFO L85 PathProgramCache]: Analyzing trace with hash -974038020, now seen corresponding path program 1 times [2021-11-05 19:57:04,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:04,694 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146161110] [2021-11-05 19:57:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:04,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:04,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-05 19:57:04,827 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:04,827 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146161110] [2021-11-05 19:57:04,827 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146161110] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:04,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:04,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:04,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241172866] [2021-11-05 19:57:04,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:04,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:04,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:04,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:04,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:04,829 INFO L87 Difference]: Start difference. First operand 117933 states and 155794 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:06,866 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:10,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:10,020 INFO L93 Difference]: Finished difference Result 293965 states and 388564 transitions. [2021-11-05 19:57:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:10,021 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 118 [2021-11-05 19:57:10,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:10,386 INFO L225 Difference]: With dead ends: 293965 [2021-11-05 19:57:10,387 INFO L226 Difference]: Without dead ends: 175715 [2021-11-05 19:57:10,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.52ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:10,553 INFO L933 BasicCegarLoop]: 8699 mSDtfsCounter, 4280 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2058.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4280 SdHoareTripleChecker+Valid, 13097 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.80ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2166.52ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:10,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4280 Valid, 13097 Invalid, 26 Unknown, 0 Unchecked, 7.80ms Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 2166.52ms Time] [2021-11-05 19:57:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175715 states. [2021-11-05 19:57:13,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175715 to 175693. [2021-11-05 19:57:14,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175693 states, 175682 states have (on average 1.321894104119944) internal successors, (232233), 175692 states have internal predecessors, (232233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175693 states to 175693 states and 232233 transitions. [2021-11-05 19:57:14,530 INFO L78 Accepts]: Start accepts. Automaton has 175693 states and 232233 transitions. Word has length 118 [2021-11-05 19:57:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:14,530 INFO L470 AbstractCegarLoop]: Abstraction has 175693 states and 232233 transitions. [2021-11-05 19:57:14,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:14,531 INFO L276 IsEmpty]: Start isEmpty. Operand 175693 states and 232233 transitions. [2021-11-05 19:57:14,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 19:57:14,535 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:14,535 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:14,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-05 19:57:14,535 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:57:14,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:14,536 INFO L85 PathProgramCache]: Analyzing trace with hash 507732604, now seen corresponding path program 1 times [2021-11-05 19:57:14,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:14,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265870557] [2021-11-05 19:57:14,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:14,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:14,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:14,661 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-05 19:57:14,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:14,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265870557] [2021-11-05 19:57:14,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265870557] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:14,662 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:14,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 19:57:14,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56661540] [2021-11-05 19:57:14,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:14,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:14,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:14,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:14,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:14,663 INFO L87 Difference]: Start difference. First operand 175693 states and 232233 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:16,700 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 19:57:21,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 19:57:21,139 INFO L93 Difference]: Finished difference Result 409293 states and 541106 transitions. [2021-11-05 19:57:21,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 19:57:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 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 132 [2021-11-05 19:57:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 19:57:21,668 INFO L225 Difference]: With dead ends: 409293 [2021-11-05 19:57:21,668 INFO L226 Difference]: Without dead ends: 233475 [2021-11-05 19:57:21,873 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.50ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:21,873 INFO L933 BasicCegarLoop]: 8699 mSDtfsCounter, 4278 mSDsluCounter, 4398 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2052.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4278 SdHoareTripleChecker+Valid, 13097 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.40ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2146.84ms IncrementalHoareTripleChecker+Time [2021-11-05 19:57:21,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4278 Valid, 13097 Invalid, 19 Unknown, 0 Unchecked, 8.40ms Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 1 Unknown, 0 Unchecked, 2146.84ms Time] [2021-11-05 19:57:22,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233475 states. [2021-11-05 19:57:25,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233475 to 175693. [2021-11-05 19:57:25,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175693 states, 175682 states have (on average 1.3218884120171674) internal successors, (232232), 175692 states have internal predecessors, (232232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:26,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175693 states to 175693 states and 232232 transitions. [2021-11-05 19:57:26,556 INFO L78 Accepts]: Start accepts. Automaton has 175693 states and 232232 transitions. Word has length 132 [2021-11-05 19:57:26,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 19:57:26,556 INFO L470 AbstractCegarLoop]: Abstraction has 175693 states and 232232 transitions. [2021-11-05 19:57:26,556 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-05 19:57:26,557 INFO L276 IsEmpty]: Start isEmpty. Operand 175693 states and 232232 transitions. [2021-11-05 19:57:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2021-11-05 19:57:26,562 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 19:57:26,562 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 19:57:26,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-05 19:57:26,562 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 8 more)] === [2021-11-05 19:57:26,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 19:57:26,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1068432382, now seen corresponding path program 1 times [2021-11-05 19:57:26,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 19:57:26,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301149648] [2021-11-05 19:57:26,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 19:57:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 19:57:26,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 19:57:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-05 19:57:26,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 19:57:26,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301149648] [2021-11-05 19:57:26,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301149648] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 19:57:26,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 19:57:26,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 19:57:26,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261415357] [2021-11-05 19:57:26,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 19:57:26,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 19:57:26,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 19:57:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 19:57:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 19:57:26,781 INFO L87 Difference]: Start difference. First operand 175693 states and 232232 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)