/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:07:11,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:07:11,258 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:07:11,325 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:07:11,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:07:11,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:07:11,335 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:07:11,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:07:11,347 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:07:11,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:07:11,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:07:11,357 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:07:11,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:07:11,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:07:11,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:07:11,366 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:07:11,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:07:11,386 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:07:11,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:07:11,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:07:11,406 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:07:11,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:07:11,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:07:11,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:07:11,423 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:07:11,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:07:11,424 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:07:11,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:07:11,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:07:11,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:07:11,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:07:11,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:07:11,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:07:11,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:07:11,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:07:11,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:07:11,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:07:11,435 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:07:11,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:07:11,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:07:11,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:07:11,438 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:07:11,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:07:11,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:07:11,500 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:07:11,501 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:07:11,501 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:07:11,501 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:07:11,502 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:07:11,502 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:07:11,502 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:07:11,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:07:11,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:07:11,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:07:11,504 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:07:11,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:07:11,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:07:11,505 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:07:11,505 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:07:11,505 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:07:11,505 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:07:11,506 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:07:11,506 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:07:11,506 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:07:11,507 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:07:11,507 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:07:11,507 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:07:11,507 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:07:11,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:07:12,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:07:12,044 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:07:12,046 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:07:12,046 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:07:12,047 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2020-12-22 16:07:12,143 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a36b7880/3ce2511b4cd9422d9f5916ad03490597/FLAG068fe9aef [2020-12-22 16:07:13,417 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:07:13,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2020-12-22 16:07:13,516 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a36b7880/3ce2511b4cd9422d9f5916ad03490597/FLAG068fe9aef [2020-12-22 16:07:13,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a36b7880/3ce2511b4cd9422d9f5916ad03490597 [2020-12-22 16:07:13,752 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:07:13,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:07:13,762 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:07:13,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:07:13,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:07:13,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:07:13" (1/1) ... [2020-12-22 16:07:13,771 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f35d7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:13, skipping insertion in model container [2020-12-22 16:07:13,771 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:07:13" (1/1) ... [2020-12-22 16:07:13,781 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:07:14,151 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:07:17,965 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2020-12-22 16:07:17,969 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2020-12-22 16:07:17,970 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2020-12-22 16:07:17,971 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2020-12-22 16:07:17,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:07:18,029 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:07:18,473 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[372884,372897] [2020-12-22 16:07:18,474 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373053,373066] [2020-12-22 16:07:18,475 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373220,373233] [2020-12-22 16:07:18,475 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i[373388,373401] [2020-12-22 16:07:18,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:07:19,334 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:07:19,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19 WrapperNode [2020-12-22 16:07:19,335 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:07:19,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:07:19,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:07:19,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:07:19,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:19,501 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:22,626 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:07:22,627 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:07:22,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:07:22,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:07:22,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:22,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:23,054 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:23,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:24,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:24,898 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:25,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... [2020-12-22 16:07:25,625 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:07:25,626 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:07:25,627 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:07:25,627 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:07:25,628 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:07:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:07:25,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:07:25,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:07:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:07:25,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:07:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:07:25,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:07:25,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:07:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:07:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:07:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:07:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:07:25,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:07:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:07:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:08:22,145 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:08:22,146 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:08:22,146 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:08:22,146 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 16:08:22,147 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:08:22,151 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:08:22,152 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:08:22,221 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:08:22,221 INFO L299 CfgBuilder]: Removed 11536 assume(true) statements. [2020-12-22 16:08:22,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:08:22 BoogieIcfgContainer [2020-12-22 16:08:22,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:08:22,236 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:08:22,236 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:08:22,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:08:22,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:07:13" (1/3) ... [2020-12-22 16:08:22,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca6972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:08:22, skipping insertion in model container [2020-12-22 16:08:22,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:19" (2/3) ... [2020-12-22 16:08:22,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bca6972 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:08:22, skipping insertion in model container [2020-12-22 16:08:22,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:08:22" (3/3) ... [2020-12-22 16:08:22,244 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wireless-adm8211.cil.i [2020-12-22 16:08:22,251 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:08:22,271 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 28 error locations. [2020-12-22 16:08:22,294 INFO L253 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2020-12-22 16:08:22,362 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:08:22,363 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:08:22,363 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:08:22,363 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:08:22,363 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:08:22,363 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:08:22,363 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:08:22,364 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:08:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 11292 states. [2020-12-22 16:08:22,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 16:08:22,524 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:22,525 INFO L422 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] [2020-12-22 16:08:22,526 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:22,534 INFO L82 PathProgramCache]: Analyzing trace with hash -896382054, now seen corresponding path program 1 times [2020-12-22 16:08:22,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:22,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940642852] [2020-12-22 16:08:22,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:23,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:08:23,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940642852] [2020-12-22 16:08:23,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:23,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:23,490 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925185294] [2020-12-22 16:08:23,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:08:23,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:23,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:08:23,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:23,519 INFO L87 Difference]: Start difference. First operand 11292 states. Second operand 3 states. [2020-12-22 16:08:27,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:27,297 INFO L93 Difference]: Finished difference Result 33528 states and 44545 transitions. [2020-12-22 16:08:27,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:08:27,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-22 16:08:27,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:27,466 INFO L225 Difference]: With dead ends: 33528 [2020-12-22 16:08:27,466 INFO L226 Difference]: Without dead ends: 22107 [2020-12-22 16:08:27,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:27,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22107 states. [2020-12-22 16:08:28,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22107 to 22099. [2020-12-22 16:08:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22099 states. [2020-12-22 16:08:28,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22099 states to 22099 states and 29134 transitions. [2020-12-22 16:08:28,470 INFO L78 Accepts]: Start accepts. Automaton has 22099 states and 29134 transitions. Word has length 45 [2020-12-22 16:08:28,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:28,470 INFO L481 AbstractCegarLoop]: Abstraction has 22099 states and 29134 transitions. [2020-12-22 16:08:28,471 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:08:28,471 INFO L276 IsEmpty]: Start isEmpty. Operand 22099 states and 29134 transitions. [2020-12-22 16:08:28,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-12-22 16:08:28,481 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:28,482 INFO L422 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] [2020-12-22 16:08:28,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:08:28,483 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:28,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:28,484 INFO L82 PathProgramCache]: Analyzing trace with hash -1966733374, now seen corresponding path program 1 times [2020-12-22 16:08:28,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:28,485 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636342869] [2020-12-22 16:08:28,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:08:28,924 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636342869] [2020-12-22 16:08:28,924 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:28,924 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:28,925 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578239930] [2020-12-22 16:08:28,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:08:28,929 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:28,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:08:28,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:28,931 INFO L87 Difference]: Start difference. First operand 22099 states and 29134 transitions. Second operand 3 states. [2020-12-22 16:08:32,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:32,734 INFO L93 Difference]: Finished difference Result 65383 states and 86264 transitions. [2020-12-22 16:08:32,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:08:32,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-12-22 16:08:32,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:32,902 INFO L225 Difference]: With dead ends: 65383 [2020-12-22 16:08:32,903 INFO L226 Difference]: Without dead ends: 43368 [2020-12-22 16:08:32,985 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:33,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43368 states. [2020-12-22 16:08:34,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43368 to 43204. [2020-12-22 16:08:34,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43204 states. [2020-12-22 16:08:34,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43204 states to 43204 states and 57056 transitions. [2020-12-22 16:08:34,741 INFO L78 Accepts]: Start accepts. Automaton has 43204 states and 57056 transitions. Word has length 52 [2020-12-22 16:08:34,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:34,743 INFO L481 AbstractCegarLoop]: Abstraction has 43204 states and 57056 transitions. [2020-12-22 16:08:34,744 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:08:34,744 INFO L276 IsEmpty]: Start isEmpty. Operand 43204 states and 57056 transitions. [2020-12-22 16:08:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:08:34,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:34,750 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:08:34,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:08:34,751 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:34,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:34,754 INFO L82 PathProgramCache]: Analyzing trace with hash 4408613, now seen corresponding path program 1 times [2020-12-22 16:08:34,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:34,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506888288] [2020-12-22 16:08:34,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:35,299 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-12-22 16:08:35,307 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:08:35,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506888288] [2020-12-22 16:08:35,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:35,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:35,308 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404792051] [2020-12-22 16:08:35,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:08:35,309 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:35,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:08:35,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:35,310 INFO L87 Difference]: Start difference. First operand 43204 states and 57056 transitions. Second operand 3 states. [2020-12-22 16:08:38,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:38,814 INFO L93 Difference]: Finished difference Result 86328 states and 114020 transitions. [2020-12-22 16:08:38,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:08:38,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 16:08:38,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:39,034 INFO L225 Difference]: With dead ends: 86328 [2020-12-22 16:08:39,035 INFO L226 Difference]: Without dead ends: 64688 [2020-12-22 16:08:39,111 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:08:39,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64688 states. [2020-12-22 16:08:41,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64688 to 64678. [2020-12-22 16:08:41,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64678 states. [2020-12-22 16:08:41,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64678 states to 64678 states and 85449 transitions. [2020-12-22 16:08:41,683 INFO L78 Accepts]: Start accepts. Automaton has 64678 states and 85449 transitions. Word has length 70 [2020-12-22 16:08:41,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:41,684 INFO L481 AbstractCegarLoop]: Abstraction has 64678 states and 85449 transitions. [2020-12-22 16:08:41,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:08:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 64678 states and 85449 transitions. [2020-12-22 16:08:41,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:08:41,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:41,688 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:08:41,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:08:41,689 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:41,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:41,690 INFO L82 PathProgramCache]: Analyzing trace with hash 262574051, now seen corresponding path program 1 times [2020-12-22 16:08:41,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:41,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444727187] [2020-12-22 16:08:41,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:42,125 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:42,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444727187] [2020-12-22 16:08:42,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:42,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:42,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742631636] [2020-12-22 16:08:42,131 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:42,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:42,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:42,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:42,133 INFO L87 Difference]: Start difference. First operand 64678 states and 85449 transitions. Second operand 4 states. [2020-12-22 16:08:44,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:44,317 INFO L93 Difference]: Finished difference Result 64678 states and 85449 transitions. [2020-12-22 16:08:44,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:44,318 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-12-22 16:08:44,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:44,439 INFO L225 Difference]: With dead ends: 64678 [2020-12-22 16:08:44,439 INFO L226 Difference]: Without dead ends: 64674 [2020-12-22 16:08:44,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:08:44,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64674 states. [2020-12-22 16:08:46,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64674 to 64674. [2020-12-22 16:08:46,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64674 states. [2020-12-22 16:08:46,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64674 states to 64674 states and 85445 transitions. [2020-12-22 16:08:46,701 INFO L78 Accepts]: Start accepts. Automaton has 64674 states and 85445 transitions. Word has length 70 [2020-12-22 16:08:46,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:46,701 INFO L481 AbstractCegarLoop]: Abstraction has 64674 states and 85445 transitions. [2020-12-22 16:08:46,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:08:46,701 INFO L276 IsEmpty]: Start isEmpty. Operand 64674 states and 85445 transitions. [2020-12-22 16:08:46,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 16:08:46,704 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:46,704 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:08:46,704 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:08:46,705 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:46,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1069266618, now seen corresponding path program 1 times [2020-12-22 16:08:46,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:46,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573740685] [2020-12-22 16:08:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:47,086 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:47,086 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573740685] [2020-12-22 16:08:47,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:47,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:47,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449298516] [2020-12-22 16:08:47,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:47,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:47,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:47,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:47,089 INFO L87 Difference]: Start difference. First operand 64674 states and 85445 transitions. Second operand 4 states. [2020-12-22 16:08:49,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:49,043 INFO L93 Difference]: Finished difference Result 64674 states and 85445 transitions. [2020-12-22 16:08:49,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:49,043 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 16:08:49,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:49,145 INFO L225 Difference]: With dead ends: 64674 [2020-12-22 16:08:49,145 INFO L226 Difference]: Without dead ends: 64670 [2020-12-22 16:08:49,163 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:08:49,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64670 states. [2020-12-22 16:08:51,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64670 to 64670. [2020-12-22 16:08:51,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64670 states. [2020-12-22 16:08:51,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64670 states to 64670 states and 85441 transitions. [2020-12-22 16:08:51,534 INFO L78 Accepts]: Start accepts. Automaton has 64670 states and 85441 transitions. Word has length 72 [2020-12-22 16:08:51,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:51,534 INFO L481 AbstractCegarLoop]: Abstraction has 64670 states and 85441 transitions. [2020-12-22 16:08:51,534 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:08:51,534 INFO L276 IsEmpty]: Start isEmpty. Operand 64670 states and 85441 transitions. [2020-12-22 16:08:51,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 16:08:51,538 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:51,538 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:08:51,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:08:51,539 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:51,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:51,539 INFO L82 PathProgramCache]: Analyzing trace with hash -1067894999, now seen corresponding path program 1 times [2020-12-22 16:08:51,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:51,540 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320510758] [2020-12-22 16:08:51,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:51,991 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:51,992 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320510758] [2020-12-22 16:08:51,992 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:51,992 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:51,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934266407] [2020-12-22 16:08:51,993 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:51,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:51,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:51,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:51,994 INFO L87 Difference]: Start difference. First operand 64670 states and 85441 transitions. Second operand 4 states. [2020-12-22 16:08:54,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:54,126 INFO L93 Difference]: Finished difference Result 64670 states and 85441 transitions. [2020-12-22 16:08:54,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:54,128 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2020-12-22 16:08:54,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:54,234 INFO L225 Difference]: With dead ends: 64670 [2020-12-22 16:08:54,234 INFO L226 Difference]: Without dead ends: 64666 [2020-12-22 16:08:54,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:08:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64666 states. [2020-12-22 16:08:56,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64666 to 64666. [2020-12-22 16:08:56,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64666 states. [2020-12-22 16:08:56,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64666 states to 64666 states and 85437 transitions. [2020-12-22 16:08:56,589 INFO L78 Accepts]: Start accepts. Automaton has 64666 states and 85437 transitions. Word has length 74 [2020-12-22 16:08:56,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:08:56,589 INFO L481 AbstractCegarLoop]: Abstraction has 64666 states and 85437 transitions. [2020-12-22 16:08:56,589 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:08:56,589 INFO L276 IsEmpty]: Start isEmpty. Operand 64666 states and 85437 transitions. [2020-12-22 16:08:56,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 16:08:56,592 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:08:56,592 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:08:56,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:08:56,593 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:08:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:08:56,593 INFO L82 PathProgramCache]: Analyzing trace with hash 250231180, now seen corresponding path program 1 times [2020-12-22 16:08:56,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:08:56,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372237014] [2020-12-22 16:08:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:08:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:08:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:08:56,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372237014] [2020-12-22 16:08:56,998 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:08:56,998 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:08:56,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120897297] [2020-12-22 16:08:56,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:08:56,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:08:56,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:08:56,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:08:57,000 INFO L87 Difference]: Start difference. First operand 64666 states and 85437 transitions. Second operand 4 states. [2020-12-22 16:08:59,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:08:59,062 INFO L93 Difference]: Finished difference Result 64666 states and 85437 transitions. [2020-12-22 16:08:59,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:08:59,063 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 16:08:59,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:08:59,252 INFO L225 Difference]: With dead ends: 64666 [2020-12-22 16:08:59,253 INFO L226 Difference]: Without dead ends: 64662 [2020-12-22 16:08:59,267 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:08:59,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64662 states. [2020-12-22 16:09:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64662 to 64662. [2020-12-22 16:09:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64662 states. [2020-12-22 16:09:01,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64662 states to 64662 states and 85433 transitions. [2020-12-22 16:09:01,459 INFO L78 Accepts]: Start accepts. Automaton has 64662 states and 85433 transitions. Word has length 76 [2020-12-22 16:09:01,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:01,459 INFO L481 AbstractCegarLoop]: Abstraction has 64662 states and 85433 transitions. [2020-12-22 16:09:01,459 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:01,459 INFO L276 IsEmpty]: Start isEmpty. Operand 64662 states and 85433 transitions. [2020-12-22 16:09:01,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 16:09:01,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:01,464 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:01,464 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:09:01,464 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:01,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:01,465 INFO L82 PathProgramCache]: Analyzing trace with hash -45862801, now seen corresponding path program 1 times [2020-12-22 16:09:01,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:01,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936566602] [2020-12-22 16:09:01,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:01,784 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:01,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936566602] [2020-12-22 16:09:01,785 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:01,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:01,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329651468] [2020-12-22 16:09:01,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:01,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:01,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:01,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:01,787 INFO L87 Difference]: Start difference. First operand 64662 states and 85433 transitions. Second operand 4 states. [2020-12-22 16:09:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:04,260 INFO L93 Difference]: Finished difference Result 64662 states and 85433 transitions. [2020-12-22 16:09:04,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:04,261 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 16:09:04,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:04,342 INFO L225 Difference]: With dead ends: 64662 [2020-12-22 16:09:04,342 INFO L226 Difference]: Without dead ends: 64658 [2020-12-22 16:09:04,358 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:04,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64658 states. [2020-12-22 16:09:06,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64658 to 64658. [2020-12-22 16:09:06,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64658 states. [2020-12-22 16:09:06,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64658 states to 64658 states and 85429 transitions. [2020-12-22 16:09:06,885 INFO L78 Accepts]: Start accepts. Automaton has 64658 states and 85429 transitions. Word has length 78 [2020-12-22 16:09:06,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:06,885 INFO L481 AbstractCegarLoop]: Abstraction has 64658 states and 85429 transitions. [2020-12-22 16:09:06,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 64658 states and 85429 transitions. [2020-12-22 16:09:06,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 16:09:06,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:06,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:06,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:09:06,890 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:06,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:06,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1124336686, now seen corresponding path program 1 times [2020-12-22 16:09:06,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:06,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410759920] [2020-12-22 16:09:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:06,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:07,214 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:07,215 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410759920] [2020-12-22 16:09:07,215 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:07,215 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:07,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795825338] [2020-12-22 16:09:07,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:07,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:07,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:07,216 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:07,217 INFO L87 Difference]: Start difference. First operand 64658 states and 85429 transitions. Second operand 4 states. [2020-12-22 16:09:09,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:09,666 INFO L93 Difference]: Finished difference Result 64658 states and 85429 transitions. [2020-12-22 16:09:09,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:09,671 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-12-22 16:09:09,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:09,753 INFO L225 Difference]: With dead ends: 64658 [2020-12-22 16:09:09,754 INFO L226 Difference]: Without dead ends: 64654 [2020-12-22 16:09:09,771 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:09,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64654 states. [2020-12-22 16:09:12,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64654 to 64654. [2020-12-22 16:09:12,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64654 states. [2020-12-22 16:09:12,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64654 states to 64654 states and 85425 transitions. [2020-12-22 16:09:12,322 INFO L78 Accepts]: Start accepts. Automaton has 64654 states and 85425 transitions. Word has length 80 [2020-12-22 16:09:12,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:12,322 INFO L481 AbstractCegarLoop]: Abstraction has 64654 states and 85425 transitions. [2020-12-22 16:09:12,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 64654 states and 85425 transitions. [2020-12-22 16:09:12,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 16:09:12,327 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:12,328 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:12,328 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:09:12,328 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:12,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:12,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1844345781, now seen corresponding path program 1 times [2020-12-22 16:09:12,329 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:12,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823680044] [2020-12-22 16:09:12,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:12,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:12,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:12,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823680044] [2020-12-22 16:09:12,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:12,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:12,653 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967216215] [2020-12-22 16:09:12,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:12,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:12,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:12,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:12,656 INFO L87 Difference]: Start difference. First operand 64654 states and 85425 transitions. Second operand 4 states. [2020-12-22 16:09:15,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:15,450 INFO L93 Difference]: Finished difference Result 64654 states and 85425 transitions. [2020-12-22 16:09:15,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:15,451 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 82 [2020-12-22 16:09:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:15,526 INFO L225 Difference]: With dead ends: 64654 [2020-12-22 16:09:15,527 INFO L226 Difference]: Without dead ends: 64650 [2020-12-22 16:09:15,541 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:15,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64650 states. [2020-12-22 16:09:18,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64650 to 64650. [2020-12-22 16:09:18,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64650 states. [2020-12-22 16:09:18,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64650 states to 64650 states and 85421 transitions. [2020-12-22 16:09:18,124 INFO L78 Accepts]: Start accepts. Automaton has 64650 states and 85421 transitions. Word has length 82 [2020-12-22 16:09:18,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:18,125 INFO L481 AbstractCegarLoop]: Abstraction has 64650 states and 85421 transitions. [2020-12-22 16:09:18,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:18,125 INFO L276 IsEmpty]: Start isEmpty. Operand 64650 states and 85421 transitions. [2020-12-22 16:09:18,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 16:09:18,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:18,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:18,131 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 16:09:18,131 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:18,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:18,132 INFO L82 PathProgramCache]: Analyzing trace with hash -1405054952, now seen corresponding path program 1 times [2020-12-22 16:09:18,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:18,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99907065] [2020-12-22 16:09:18,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:18,429 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:18,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99907065] [2020-12-22 16:09:18,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:18,430 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:18,430 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411823720] [2020-12-22 16:09:18,431 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:18,431 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:18,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:18,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:18,433 INFO L87 Difference]: Start difference. First operand 64650 states and 85421 transitions. Second operand 4 states. [2020-12-22 16:09:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:21,566 INFO L93 Difference]: Finished difference Result 64650 states and 85421 transitions. [2020-12-22 16:09:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:21,567 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-12-22 16:09:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:21,649 INFO L225 Difference]: With dead ends: 64650 [2020-12-22 16:09:21,649 INFO L226 Difference]: Without dead ends: 64646 [2020-12-22 16:09:21,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:21,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64646 states. [2020-12-22 16:09:24,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64646 to 64646. [2020-12-22 16:09:24,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64646 states. [2020-12-22 16:09:24,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64646 states to 64646 states and 85417 transitions. [2020-12-22 16:09:24,806 INFO L78 Accepts]: Start accepts. Automaton has 64646 states and 85417 transitions. Word has length 84 [2020-12-22 16:09:24,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:24,806 INFO L481 AbstractCegarLoop]: Abstraction has 64646 states and 85417 transitions. [2020-12-22 16:09:24,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:24,806 INFO L276 IsEmpty]: Start isEmpty. Operand 64646 states and 85417 transitions. [2020-12-22 16:09:24,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 16:09:24,819 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:24,819 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:24,820 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 16:09:24,820 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:24,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:24,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1637934853, now seen corresponding path program 1 times [2020-12-22 16:09:24,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:24,821 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860155131] [2020-12-22 16:09:24,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:25,105 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:25,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860155131] [2020-12-22 16:09:25,106 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:25,106 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:25,106 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608312617] [2020-12-22 16:09:25,107 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:25,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:25,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:25,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:25,108 INFO L87 Difference]: Start difference. First operand 64646 states and 85417 transitions. Second operand 4 states. [2020-12-22 16:09:28,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:28,313 INFO L93 Difference]: Finished difference Result 64646 states and 85417 transitions. [2020-12-22 16:09:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:28,314 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2020-12-22 16:09:28,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:28,395 INFO L225 Difference]: With dead ends: 64646 [2020-12-22 16:09:28,395 INFO L226 Difference]: Without dead ends: 64642 [2020-12-22 16:09:28,412 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:28,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64642 states. [2020-12-22 16:09:31,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64642 to 64642. [2020-12-22 16:09:31,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64642 states. [2020-12-22 16:09:31,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64642 states to 64642 states and 85413 transitions. [2020-12-22 16:09:31,644 INFO L78 Accepts]: Start accepts. Automaton has 64642 states and 85413 transitions. Word has length 86 [2020-12-22 16:09:31,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:31,644 INFO L481 AbstractCegarLoop]: Abstraction has 64642 states and 85413 transitions. [2020-12-22 16:09:31,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:31,644 INFO L276 IsEmpty]: Start isEmpty. Operand 64642 states and 85413 transitions. [2020-12-22 16:09:31,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 16:09:31,650 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:31,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:31,650 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 16:09:31,650 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:31,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:31,651 INFO L82 PathProgramCache]: Analyzing trace with hash -2097220002, now seen corresponding path program 1 times [2020-12-22 16:09:31,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:31,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125227000] [2020-12-22 16:09:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:31,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:31,977 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125227000] [2020-12-22 16:09:31,977 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:31,977 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:31,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729492937] [2020-12-22 16:09:31,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:31,980 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:31,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:31,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:31,982 INFO L87 Difference]: Start difference. First operand 64642 states and 85413 transitions. Second operand 4 states. [2020-12-22 16:09:35,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:35,324 INFO L93 Difference]: Finished difference Result 64642 states and 85413 transitions. [2020-12-22 16:09:35,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:35,325 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 16:09:35,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:35,413 INFO L225 Difference]: With dead ends: 64642 [2020-12-22 16:09:35,413 INFO L226 Difference]: Without dead ends: 64638 [2020-12-22 16:09:35,431 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:35,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64638 states. [2020-12-22 16:09:38,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64638 to 64638. [2020-12-22 16:09:38,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64638 states. [2020-12-22 16:09:38,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64638 states to 64638 states and 85409 transitions. [2020-12-22 16:09:38,885 INFO L78 Accepts]: Start accepts. Automaton has 64638 states and 85409 transitions. Word has length 88 [2020-12-22 16:09:38,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:38,885 INFO L481 AbstractCegarLoop]: Abstraction has 64638 states and 85409 transitions. [2020-12-22 16:09:38,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:38,885 INFO L276 IsEmpty]: Start isEmpty. Operand 64638 states and 85409 transitions. [2020-12-22 16:09:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 16:09:38,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:38,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:38,890 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 16:09:38,890 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:38,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:38,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1088616383, now seen corresponding path program 1 times [2020-12-22 16:09:38,891 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:38,891 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369478148] [2020-12-22 16:09:38,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:39,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:39,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369478148] [2020-12-22 16:09:39,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:39,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:39,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658736223] [2020-12-22 16:09:39,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:39,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:39,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:39,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:39,205 INFO L87 Difference]: Start difference. First operand 64638 states and 85409 transitions. Second operand 4 states. [2020-12-22 16:09:42,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:42,586 INFO L93 Difference]: Finished difference Result 64638 states and 85409 transitions. [2020-12-22 16:09:42,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:42,587 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2020-12-22 16:09:42,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:42,675 INFO L225 Difference]: With dead ends: 64638 [2020-12-22 16:09:42,675 INFO L226 Difference]: Without dead ends: 64634 [2020-12-22 16:09:42,693 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:42,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64634 states. [2020-12-22 16:09:46,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64634 to 64634. [2020-12-22 16:09:46,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64634 states. [2020-12-22 16:09:46,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64634 states to 64634 states and 85405 transitions. [2020-12-22 16:09:46,306 INFO L78 Accepts]: Start accepts. Automaton has 64634 states and 85405 transitions. Word has length 90 [2020-12-22 16:09:46,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:46,307 INFO L481 AbstractCegarLoop]: Abstraction has 64634 states and 85405 transitions. [2020-12-22 16:09:46,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:46,307 INFO L276 IsEmpty]: Start isEmpty. Operand 64634 states and 85405 transitions. [2020-12-22 16:09:46,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 16:09:46,311 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:46,311 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:46,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 16:09:46,312 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:46,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:46,312 INFO L82 PathProgramCache]: Analyzing trace with hash 1811820196, now seen corresponding path program 1 times [2020-12-22 16:09:46,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:46,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453958938] [2020-12-22 16:09:46,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:46,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:46,602 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:09:46,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453958938] [2020-12-22 16:09:46,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:46,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:46,603 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861861649] [2020-12-22 16:09:46,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:09:46,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:46,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:09:46,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:09:46,604 INFO L87 Difference]: Start difference. First operand 64634 states and 85405 transitions. Second operand 4 states. [2020-12-22 16:09:50,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:50,359 INFO L93 Difference]: Finished difference Result 64634 states and 85405 transitions. [2020-12-22 16:09:50,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:09:50,359 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-12-22 16:09:50,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:50,550 INFO L225 Difference]: With dead ends: 64634 [2020-12-22 16:09:50,550 INFO L226 Difference]: Without dead ends: 64570 [2020-12-22 16:09:50,574 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 16:09:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64570 states. [2020-12-22 16:09:55,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64570 to 64570. [2020-12-22 16:09:55,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64570 states. [2020-12-22 16:09:55,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64570 states to 64570 states and 85337 transitions. [2020-12-22 16:09:55,930 INFO L78 Accepts]: Start accepts. Automaton has 64570 states and 85337 transitions. Word has length 92 [2020-12-22 16:09:55,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:55,931 INFO L481 AbstractCegarLoop]: Abstraction has 64570 states and 85337 transitions. [2020-12-22 16:09:55,931 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:09:55,931 INFO L276 IsEmpty]: Start isEmpty. Operand 64570 states and 85337 transitions. [2020-12-22 16:09:55,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-12-22 16:09:55,937 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:55,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:55,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 16:09:55,938 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:55,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:55,939 INFO L82 PathProgramCache]: Analyzing trace with hash 1813905272, now seen corresponding path program 1 times [2020-12-22 16:09:55,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:55,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579321121] [2020-12-22 16:09:55,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:56,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:09:56,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579321121] [2020-12-22 16:09:56,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:56,219 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:56,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058726124] [2020-12-22 16:09:56,220 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:09:56,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:56,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:09:56,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:09:56,221 INFO L87 Difference]: Start difference. First operand 64570 states and 85337 transitions. Second operand 3 states. [2020-12-22 16:10:03,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:10:03,775 INFO L93 Difference]: Finished difference Result 152048 states and 200969 transitions. [2020-12-22 16:10:03,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:10:03,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-12-22 16:10:03,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:10:03,912 INFO L225 Difference]: With dead ends: 152048 [2020-12-22 16:10:03,912 INFO L226 Difference]: Without dead ends: 87562 [2020-12-22 16:10:04,023 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:10:04,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87562 states. [2020-12-22 16:10:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87562 to 86670. [2020-12-22 16:10:08,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86670 states. [2020-12-22 16:10:09,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86670 states to 86670 states and 114644 transitions. [2020-12-22 16:10:09,129 INFO L78 Accepts]: Start accepts. Automaton has 86670 states and 114644 transitions. Word has length 115 [2020-12-22 16:10:09,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:10:09,129 INFO L481 AbstractCegarLoop]: Abstraction has 86670 states and 114644 transitions. [2020-12-22 16:10:09,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:10:09,129 INFO L276 IsEmpty]: Start isEmpty. Operand 86670 states and 114644 transitions. [2020-12-22 16:10:09,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-12-22 16:10:09,146 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:10:09,146 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:10:09,146 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 16:10:09,146 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:10:09,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:10:09,147 INFO L82 PathProgramCache]: Analyzing trace with hash -36318994, now seen corresponding path program 1 times [2020-12-22 16:10:09,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:10:09,147 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15848085] [2020-12-22 16:10:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:10:09,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:10:09,723 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:10:09,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15848085] [2020-12-22 16:10:09,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:10:09,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:10:09,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033458707] [2020-12-22 16:10:09,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:10:09,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:10:09,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:10:09,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:10:09,731 INFO L87 Difference]: Start difference. First operand 86670 states and 114644 transitions. Second operand 3 states. [2020-12-22 16:10:17,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:10:17,085 INFO L93 Difference]: Finished difference Result 173680 states and 229765 transitions. [2020-12-22 16:10:17,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:10:17,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-12-22 16:10:17,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:10:17,360 INFO L225 Difference]: With dead ends: 173680 [2020-12-22 16:10:17,361 INFO L226 Difference]: Without dead ends: 87041 [2020-12-22 16:10:17,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:10:17,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87041 states. [2020-12-22 16:10:22,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87041 to 87017. [2020-12-22 16:10:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87017 states. [2020-12-22 16:10:22,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87017 states to 87017 states and 114988 transitions. [2020-12-22 16:10:22,343 INFO L78 Accepts]: Start accepts. Automaton has 87017 states and 114988 transitions. Word has length 205 [2020-12-22 16:10:22,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:10:22,343 INFO L481 AbstractCegarLoop]: Abstraction has 87017 states and 114988 transitions. [2020-12-22 16:10:22,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:10:22,343 INFO L276 IsEmpty]: Start isEmpty. Operand 87017 states and 114988 transitions. [2020-12-22 16:10:22,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-12-22 16:10:22,359 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:10:22,359 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:10:22,359 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 16:10:22,360 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:10:22,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:10:22,360 INFO L82 PathProgramCache]: Analyzing trace with hash 74089139, now seen corresponding path program 1 times [2020-12-22 16:10:22,360 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:10:22,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008571237] [2020-12-22 16:10:22,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:10:22,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:10:22,713 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:10:22,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008571237] [2020-12-22 16:10:22,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:10:22,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:10:22,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140903716] [2020-12-22 16:10:22,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:10:22,717 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:10:22,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:10:22,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:10:22,718 INFO L87 Difference]: Start difference. First operand 87017 states and 114988 transitions. Second operand 3 states.