/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-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:25:59,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:25:59,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:25:59,401 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:25:59,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:25:59,406 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:25:59,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:25:59,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:25:59,424 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:25:59,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:25:59,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:25:59,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:25:59,435 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:25:59,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:25:59,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:25:59,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:25:59,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:25:59,447 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:25:59,465 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:25:59,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:25:59,475 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:25:59,477 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:25:59,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:25:59,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:25:59,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:25:59,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:25:59,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:25:59,495 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:25:59,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:25:59,497 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:25:59,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:25:59,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:25:59,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:25:59,501 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:25:59,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:25:59,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:25:59,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:25:59,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:25:59,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:25:59,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:25:59,505 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:25:59,506 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:25:59,554 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:25:59,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:25:59,558 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:25:59,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:25:59,559 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:25:59,559 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:25:59,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:25:59,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:25:59,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:25:59,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:25:59,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:25:59,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:25:59,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:25:59,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:25:59,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:25:59,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:25:59,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:25:59,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:25:59,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:25:59,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:25:59,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:25:59,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:25:59,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:25:59,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:25:59,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:25:59,564 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:25:59,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:25:59,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:25:59,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:25:59,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:25:59,975 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:25:59,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2020-12-22 15:26:00,060 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e27b1bf7e/74be7a59633a49f98168f0c7739f405d/FLAG999cac533 [2020-12-22 15:26:01,332 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:26:01,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2020-12-22 15:26:01,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e27b1bf7e/74be7a59633a49f98168f0c7739f405d/FLAG999cac533 [2020-12-22 15:26:01,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e27b1bf7e/74be7a59633a49f98168f0c7739f405d [2020-12-22 15:26:01,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:26:01,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:26:01,597 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:26:01,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:26:01,601 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:26:01,602 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:01" (1/1) ... [2020-12-22 15:26:01,603 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3303a31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:01, skipping insertion in model container [2020-12-22 15:26:01,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:01" (1/1) ... [2020-12-22 15:26:01,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:26:01,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:26:05,783 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-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2020-12-22 15:26:05,787 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-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2020-12-22 15:26:05,800 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:26:05,849 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:26:06,291 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-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373388,373401] [2020-12-22 15:26:06,292 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-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i[373533,373546] [2020-12-22 15:26:06,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:26:07,216 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:26:07,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07 WrapperNode [2020-12-22 15:26:07,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:26:07,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:26:07,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:26:07,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:26:07,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:07,430 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:07,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:26:07,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:26:07,977 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:26:07,977 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:26:07,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:07,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (1/1) ... [2020-12-22 15:26:08,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:26:08,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:26:08,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:26:08,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:26:08,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (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 15:26:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:26:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:26:09,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:26:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:26:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:26:09,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:26:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:26:09,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:26:09,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:26:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:26:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:26:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:26:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:26:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:26:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:26:29,952 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:26:29,953 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 15:26:29,953 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:26:29,954 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:26:29,955 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:26:29,955 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:26:30,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:26:30,000 INFO L299 CfgBuilder]: Removed 4615 assume(true) statements. [2020-12-22 15:26:30,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:26:30 BoogieIcfgContainer [2020-12-22 15:26:30,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:26:30,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:26:30,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:26:30,012 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:26:30,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:26:01" (1/3) ... [2020-12-22 15:26:30,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b666cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:26:30, skipping insertion in model container [2020-12-22 15:26:30,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:07" (2/3) ... [2020-12-22 15:26:30,014 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64b666cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:26:30, skipping insertion in model container [2020-12-22 15:26:30,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:26:30" (3/3) ... [2020-12-22 15:26:30,016 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-alteon-acenic.cil.i [2020-12-22 15:26:30,022 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:26:30,030 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-12-22 15:26:30,050 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-12-22 15:26:30,099 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:26:30,099 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:26:30,099 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:26:30,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:26:30,100 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:26:30,100 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:26:30,100 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:26:30,100 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:26:30,168 INFO L276 IsEmpty]: Start isEmpty. Operand 3860 states. [2020-12-22 15:26:30,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 15:26:30,188 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:30,190 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] [2020-12-22 15:26:30,190 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:30,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:30,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1237024553, now seen corresponding path program 1 times [2020-12-22 15:26:30,209 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:30,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807653328] [2020-12-22 15:26:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:31,158 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 15:26:31,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807653328] [2020-12-22 15:26:31,161 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:31,161 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:31,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360382363] [2020-12-22 15:26:31,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:31,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:31,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:31,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:31,190 INFO L87 Difference]: Start difference. First operand 3860 states. Second operand 3 states. [2020-12-22 15:26:34,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:34,317 INFO L93 Difference]: Finished difference Result 10547 states and 13876 transitions. [2020-12-22 15:26:34,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:34,325 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 15:26:34,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:34,393 INFO L225 Difference]: With dead ends: 10547 [2020-12-22 15:26:34,393 INFO L226 Difference]: Without dead ends: 6523 [2020-12-22 15:26:34,412 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 15:26:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6523 states. [2020-12-22 15:26:34,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6523 to 6338. [2020-12-22 15:26:34,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6338 states. [2020-12-22 15:26:34,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6338 states to 6338 states and 8084 transitions. [2020-12-22 15:26:34,746 INFO L78 Accepts]: Start accepts. Automaton has 6338 states and 8084 transitions. Word has length 51 [2020-12-22 15:26:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:34,747 INFO L481 AbstractCegarLoop]: Abstraction has 6338 states and 8084 transitions. [2020-12-22 15:26:34,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:34,748 INFO L276 IsEmpty]: Start isEmpty. Operand 6338 states and 8084 transitions. [2020-12-22 15:26:34,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-12-22 15:26:34,753 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:34,753 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] [2020-12-22 15:26:34,754 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:26:34,757 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:34,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:34,760 INFO L82 PathProgramCache]: Analyzing trace with hash 503253660, now seen corresponding path program 1 times [2020-12-22 15:26:34,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:34,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257934198] [2020-12-22 15:26:34,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:34,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:35,201 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 15:26:35,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257934198] [2020-12-22 15:26:35,202 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:35,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:35,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010275528] [2020-12-22 15:26:35,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:35,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:35,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:35,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:35,206 INFO L87 Difference]: Start difference. First operand 6338 states and 8084 transitions. Second operand 3 states. [2020-12-22 15:26:37,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:37,773 INFO L93 Difference]: Finished difference Result 13834 states and 17772 transitions. [2020-12-22 15:26:37,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:37,773 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-12-22 15:26:37,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:37,814 INFO L225 Difference]: With dead ends: 13834 [2020-12-22 15:26:37,814 INFO L226 Difference]: Without dead ends: 7548 [2020-12-22 15:26:37,832 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 15:26:37,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7548 states. [2020-12-22 15:26:38,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7548 to 7532. [2020-12-22 15:26:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7532 states. [2020-12-22 15:26:38,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7532 states to 7532 states and 9702 transitions. [2020-12-22 15:26:38,146 INFO L78 Accepts]: Start accepts. Automaton has 7532 states and 9702 transitions. Word has length 58 [2020-12-22 15:26:38,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:38,147 INFO L481 AbstractCegarLoop]: Abstraction has 7532 states and 9702 transitions. [2020-12-22 15:26:38,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:38,147 INFO L276 IsEmpty]: Start isEmpty. Operand 7532 states and 9702 transitions. [2020-12-22 15:26:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 15:26:38,151 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:38,152 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] [2020-12-22 15:26:38,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:26:38,153 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:38,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:38,155 INFO L82 PathProgramCache]: Analyzing trace with hash 329388047, now seen corresponding path program 1 times [2020-12-22 15:26:38,156 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:38,157 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583183018] [2020-12-22 15:26:38,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:38,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:38,532 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 15:26:38,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583183018] [2020-12-22 15:26:38,539 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:38,539 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:38,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328941399] [2020-12-22 15:26:38,545 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:38,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:38,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:38,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:38,546 INFO L87 Difference]: Start difference. First operand 7532 states and 9702 transitions. Second operand 3 states. [2020-12-22 15:26:41,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:41,279 INFO L93 Difference]: Finished difference Result 21124 states and 27109 transitions. [2020-12-22 15:26:41,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:41,280 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-22 15:26:41,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:41,382 INFO L225 Difference]: With dead ends: 21124 [2020-12-22 15:26:41,382 INFO L226 Difference]: Without dead ends: 13644 [2020-12-22 15:26:41,402 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 15:26:41,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13644 states. [2020-12-22 15:26:42,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13644 to 13598. [2020-12-22 15:26:42,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13598 states. [2020-12-22 15:26:42,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13598 states to 13598 states and 17414 transitions. [2020-12-22 15:26:42,220 INFO L78 Accepts]: Start accepts. Automaton has 13598 states and 17414 transitions. Word has length 60 [2020-12-22 15:26:42,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:42,222 INFO L481 AbstractCegarLoop]: Abstraction has 13598 states and 17414 transitions. [2020-12-22 15:26:42,222 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:42,223 INFO L276 IsEmpty]: Start isEmpty. Operand 13598 states and 17414 transitions. [2020-12-22 15:26:42,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 15:26:42,224 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:42,224 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:42,225 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:26:42,225 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:42,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1208918593, now seen corresponding path program 1 times [2020-12-22 15:26:42,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:42,227 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971214976] [2020-12-22 15:26:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:26:42,627 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971214976] [2020-12-22 15:26:42,628 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:42,628 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:42,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613533476] [2020-12-22 15:26:42,629 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:42,629 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:42,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:42,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:42,631 INFO L87 Difference]: Start difference. First operand 13598 states and 17414 transitions. Second operand 3 states. [2020-12-22 15:26:45,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:45,781 INFO L93 Difference]: Finished difference Result 28880 states and 37150 transitions. [2020-12-22 15:26:45,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:45,781 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2020-12-22 15:26:45,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:45,831 INFO L225 Difference]: With dead ends: 28880 [2020-12-22 15:26:45,831 INFO L226 Difference]: Without dead ends: 15334 [2020-12-22 15:26:45,973 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 15:26:45,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15334 states. [2020-12-22 15:26:46,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15334 to 15310. [2020-12-22 15:26:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15310 states. [2020-12-22 15:26:46,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15310 states to 15310 states and 19718 transitions. [2020-12-22 15:26:46,564 INFO L78 Accepts]: Start accepts. Automaton has 15310 states and 19718 transitions. Word has length 86 [2020-12-22 15:26:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:46,565 INFO L481 AbstractCegarLoop]: Abstraction has 15310 states and 19718 transitions. [2020-12-22 15:26:46,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 15310 states and 19718 transitions. [2020-12-22 15:26:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-22 15:26:46,567 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:46,568 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:46,568 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:26:46,568 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:46,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1985663429, now seen corresponding path program 1 times [2020-12-22 15:26:46,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:46,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76328855] [2020-12-22 15:26:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:46,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:46,970 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:26:46,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76328855] [2020-12-22 15:26:46,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:46,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:46,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114788195] [2020-12-22 15:26:46,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:46,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:46,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:46,976 INFO L87 Difference]: Start difference. First operand 15310 states and 19718 transitions. Second operand 3 states. [2020-12-22 15:26:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:50,062 INFO L93 Difference]: Finished difference Result 32304 states and 41758 transitions. [2020-12-22 15:26:50,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:50,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-22 15:26:50,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:50,109 INFO L225 Difference]: With dead ends: 32304 [2020-12-22 15:26:50,110 INFO L226 Difference]: Without dead ends: 17046 [2020-12-22 15:26:50,139 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 15:26:50,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17046 states. [2020-12-22 15:26:50,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17046 to 17022. [2020-12-22 15:26:50,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17022 states. [2020-12-22 15:26:50,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17022 states to 17022 states and 22038 transitions. [2020-12-22 15:26:50,790 INFO L78 Accepts]: Start accepts. Automaton has 17022 states and 22038 transitions. Word has length 123 [2020-12-22 15:26:50,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:50,792 INFO L481 AbstractCegarLoop]: Abstraction has 17022 states and 22038 transitions. [2020-12-22 15:26:50,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:50,792 INFO L276 IsEmpty]: Start isEmpty. Operand 17022 states and 22038 transitions. [2020-12-22 15:26:50,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-22 15:26:50,803 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:50,803 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:50,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:26:50,804 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:50,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:50,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1682777854, now seen corresponding path program 1 times [2020-12-22 15:26:50,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:50,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31056400] [2020-12-22 15:26:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:51,182 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:26:51,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31056400] [2020-12-22 15:26:51,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:51,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:51,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881155305] [2020-12-22 15:26:51,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:51,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:51,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:51,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:51,186 INFO L87 Difference]: Start difference. First operand 17022 states and 22038 transitions. Second operand 3 states. [2020-12-22 15:26:54,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:54,200 INFO L93 Difference]: Finished difference Result 35708 states and 46318 transitions. [2020-12-22 15:26:54,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:54,202 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-12-22 15:26:54,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:54,257 INFO L225 Difference]: With dead ends: 35708 [2020-12-22 15:26:54,257 INFO L226 Difference]: Without dead ends: 18738 [2020-12-22 15:26:54,296 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 15:26:54,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18738 states. [2020-12-22 15:26:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18738 to 18714. [2020-12-22 15:26:54,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18714 states. [2020-12-22 15:26:55,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18714 states to 18714 states and 24314 transitions. [2020-12-22 15:26:55,027 INFO L78 Accepts]: Start accepts. Automaton has 18714 states and 24314 transitions. Word has length 150 [2020-12-22 15:26:55,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:55,027 INFO L481 AbstractCegarLoop]: Abstraction has 18714 states and 24314 transitions. [2020-12-22 15:26:55,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:55,027 INFO L276 IsEmpty]: Start isEmpty. Operand 18714 states and 24314 transitions. [2020-12-22 15:26:55,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-22 15:26:55,030 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:55,031 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:55,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:26:55,031 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:55,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:55,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1737170752, now seen corresponding path program 1 times [2020-12-22 15:26:55,032 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:55,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66862457] [2020-12-22 15:26:55,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:55,393 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:26:55,394 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66862457] [2020-12-22 15:26:55,394 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:55,394 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:26:55,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721872676] [2020-12-22 15:26:55,395 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:26:55,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:55,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:26:55,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:26:55,396 INFO L87 Difference]: Start difference. First operand 18714 states and 24314 transitions. Second operand 3 states. [2020-12-22 15:26:58,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:26:58,307 INFO L93 Difference]: Finished difference Result 39104 states and 50894 transitions. [2020-12-22 15:26:58,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:26:58,308 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-12-22 15:26:58,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:26:58,464 INFO L225 Difference]: With dead ends: 39104 [2020-12-22 15:26:58,464 INFO L226 Difference]: Without dead ends: 20442 [2020-12-22 15:26:58,487 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 15:26:58,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20442 states. [2020-12-22 15:26:59,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20442 to 20418. [2020-12-22 15:26:59,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20418 states. [2020-12-22 15:26:59,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20418 states to 20418 states and 26602 transitions. [2020-12-22 15:26:59,209 INFO L78 Accepts]: Start accepts. Automaton has 20418 states and 26602 transitions. Word has length 150 [2020-12-22 15:26:59,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:26:59,209 INFO L481 AbstractCegarLoop]: Abstraction has 20418 states and 26602 transitions. [2020-12-22 15:26:59,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:26:59,210 INFO L276 IsEmpty]: Start isEmpty. Operand 20418 states and 26602 transitions. [2020-12-22 15:26:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-12-22 15:26:59,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:26:59,216 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:26:59,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:26:59,216 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:26:59,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:26:59,217 INFO L82 PathProgramCache]: Analyzing trace with hash -624067939, now seen corresponding path program 1 times [2020-12-22 15:26:59,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:26:59,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352651112] [2020-12-22 15:26:59,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:26:59,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:26:59,672 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:26:59,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352651112] [2020-12-22 15:26:59,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:26:59,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:26:59,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241736857] [2020-12-22 15:26:59,676 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:26:59,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:26:59,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:26:59,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:26:59,677 INFO L87 Difference]: Start difference. First operand 20418 states and 26602 transitions. Second operand 4 states. [2020-12-22 15:27:03,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:03,454 INFO L93 Difference]: Finished difference Result 62750 states and 81858 transitions. [2020-12-22 15:27:03,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:27:03,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 191 [2020-12-22 15:27:03,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:03,560 INFO L225 Difference]: With dead ends: 62750 [2020-12-22 15:27:03,561 INFO L226 Difference]: Without dead ends: 42384 [2020-12-22 15:27:03,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:27:03,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42384 states. [2020-12-22 15:27:04,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42384 to 22090. [2020-12-22 15:27:04,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22090 states. [2020-12-22 15:27:04,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22090 states to 22090 states and 28858 transitions. [2020-12-22 15:27:04,688 INFO L78 Accepts]: Start accepts. Automaton has 22090 states and 28858 transitions. Word has length 191 [2020-12-22 15:27:04,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:04,688 INFO L481 AbstractCegarLoop]: Abstraction has 22090 states and 28858 transitions. [2020-12-22 15:27:04,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:04,688 INFO L276 IsEmpty]: Start isEmpty. Operand 22090 states and 28858 transitions. [2020-12-22 15:27:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-12-22 15:27:04,693 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:04,693 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:04,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:27:04,694 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:04,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:04,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1101324440, now seen corresponding path program 1 times [2020-12-22 15:27:04,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:04,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689433323] [2020-12-22 15:27:04,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:04,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:05,244 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:27:05,244 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689433323] [2020-12-22 15:27:05,244 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:05,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:27:05,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677096072] [2020-12-22 15:27:05,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:05,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:05,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:05,257 INFO L87 Difference]: Start difference. First operand 22090 states and 28858 transitions. Second operand 4 states. [2020-12-22 15:27:09,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:09,161 INFO L93 Difference]: Finished difference Result 66114 states and 86410 transitions. [2020-12-22 15:27:09,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:27:09,162 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2020-12-22 15:27:09,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:09,241 INFO L225 Difference]: With dead ends: 66114 [2020-12-22 15:27:09,242 INFO L226 Difference]: Without dead ends: 44076 [2020-12-22 15:27:09,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:27:09,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44076 states. [2020-12-22 15:27:10,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44076 to 23782. [2020-12-22 15:27:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23782 states. [2020-12-22 15:27:10,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23782 states to 23782 states and 31134 transitions. [2020-12-22 15:27:10,268 INFO L78 Accepts]: Start accepts. Automaton has 23782 states and 31134 transitions. Word has length 192 [2020-12-22 15:27:10,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:10,269 INFO L481 AbstractCegarLoop]: Abstraction has 23782 states and 31134 transitions. [2020-12-22 15:27:10,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 23782 states and 31134 transitions. [2020-12-22 15:27:10,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-12-22 15:27:10,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:10,274 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:10,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:27:10,275 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:10,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:10,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1781150462, now seen corresponding path program 1 times [2020-12-22 15:27:10,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:10,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162293536] [2020-12-22 15:27:10,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:10,819 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 15:27:10,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162293536] [2020-12-22 15:27:10,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:10,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:27:10,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575706924] [2020-12-22 15:27:10,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:10,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:10,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:10,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:10,822 INFO L87 Difference]: Start difference. First operand 23782 states and 31134 transitions. Second operand 4 states. [2020-12-22 15:27:14,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:14,643 INFO L93 Difference]: Finished difference Result 69494 states and 90966 transitions. [2020-12-22 15:27:14,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:27:14,644 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 193 [2020-12-22 15:27:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:14,709 INFO L225 Difference]: With dead ends: 69494 [2020-12-22 15:27:14,709 INFO L226 Difference]: Without dead ends: 45764 [2020-12-22 15:27:14,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:27:14,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45764 states. [2020-12-22 15:27:15,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45764 to 25470. [2020-12-22 15:27:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25470 states. [2020-12-22 15:27:15,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25470 states to 25470 states and 33406 transitions. [2020-12-22 15:27:15,779 INFO L78 Accepts]: Start accepts. Automaton has 25470 states and 33406 transitions. Word has length 193 [2020-12-22 15:27:15,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:15,780 INFO L481 AbstractCegarLoop]: Abstraction has 25470 states and 33406 transitions. [2020-12-22 15:27:15,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 25470 states and 33406 transitions. [2020-12-22 15:27:15,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-12-22 15:27:15,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:15,786 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:15,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:27:15,786 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:15,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:15,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1539480625, now seen corresponding path program 1 times [2020-12-22 15:27:15,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:15,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803452049] [2020-12-22 15:27:15,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:16,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-12-22 15:27:16,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803452049] [2020-12-22 15:27:16,309 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:16,309 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:16,309 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7724654] [2020-12-22 15:27:16,309 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:16,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:16,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:16,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:16,314 INFO L87 Difference]: Start difference. First operand 25470 states and 33406 transitions. Second operand 3 states. [2020-12-22 15:27:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:19,461 INFO L93 Difference]: Finished difference Result 52568 states and 69022 transitions. [2020-12-22 15:27:19,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:19,462 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 204 [2020-12-22 15:27:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:19,504 INFO L225 Difference]: With dead ends: 52568 [2020-12-22 15:27:19,505 INFO L226 Difference]: Without dead ends: 27150 [2020-12-22 15:27:19,535 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 15:27:19,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27150 states. [2020-12-22 15:27:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27150 to 27118. [2020-12-22 15:27:20,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27118 states. [2020-12-22 15:27:20,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27118 states to 27118 states and 35638 transitions. [2020-12-22 15:27:20,751 INFO L78 Accepts]: Start accepts. Automaton has 27118 states and 35638 transitions. Word has length 204 [2020-12-22 15:27:20,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:20,751 INFO L481 AbstractCegarLoop]: Abstraction has 27118 states and 35638 transitions. [2020-12-22 15:27:20,751 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:20,751 INFO L276 IsEmpty]: Start isEmpty. Operand 27118 states and 35638 transitions. [2020-12-22 15:27:20,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-12-22 15:27:20,757 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:20,757 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:20,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:27:20,758 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:20,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:20,758 INFO L82 PathProgramCache]: Analyzing trace with hash 796349788, now seen corresponding path program 1 times [2020-12-22 15:27:20,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:20,759 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082930262] [2020-12-22 15:27:20,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2020-12-22 15:27:21,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082930262] [2020-12-22 15:27:21,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:21,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:21,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473153098] [2020-12-22 15:27:21,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:21,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:21,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:21,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:21,090 INFO L87 Difference]: Start difference. First operand 27118 states and 35638 transitions. Second operand 3 states. [2020-12-22 15:27:24,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:24,379 INFO L93 Difference]: Finished difference Result 55892 states and 73542 transitions. [2020-12-22 15:27:24,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:24,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 211 [2020-12-22 15:27:24,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:24,412 INFO L225 Difference]: With dead ends: 55892 [2020-12-22 15:27:24,413 INFO L226 Difference]: Without dead ends: 28826 [2020-12-22 15:27:24,435 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 15:27:24,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28826 states. [2020-12-22 15:27:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28826 to 28802. [2020-12-22 15:27:25,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28802 states. [2020-12-22 15:27:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28802 states to 28802 states and 37906 transitions. [2020-12-22 15:27:25,418 INFO L78 Accepts]: Start accepts. Automaton has 28802 states and 37906 transitions. Word has length 211 [2020-12-22 15:27:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:25,419 INFO L481 AbstractCegarLoop]: Abstraction has 28802 states and 37906 transitions. [2020-12-22 15:27:25,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:25,419 INFO L276 IsEmpty]: Start isEmpty. Operand 28802 states and 37906 transitions. [2020-12-22 15:27:25,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 15:27:25,425 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:25,425 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:25,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:27:25,426 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:25,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:25,426 INFO L82 PathProgramCache]: Analyzing trace with hash 74444505, now seen corresponding path program 1 times [2020-12-22 15:27:25,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:25,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391621061] [2020-12-22 15:27:25,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:25,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:25,944 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2020-12-22 15:27:25,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391621061] [2020-12-22 15:27:25,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:25,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:25,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330934102] [2020-12-22 15:27:25,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:25,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:25,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:25,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:25,947 INFO L87 Difference]: Start difference. First operand 28802 states and 37906 transitions. Second operand 3 states. [2020-12-22 15:27:29,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:29,075 INFO L93 Difference]: Finished difference Result 59252 states and 78062 transitions. [2020-12-22 15:27:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:29,076 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 15:27:29,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:29,114 INFO L225 Difference]: With dead ends: 59252 [2020-12-22 15:27:29,114 INFO L226 Difference]: Without dead ends: 30502 [2020-12-22 15:27:29,139 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 15:27:29,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30502 states. [2020-12-22 15:27:30,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30502 to 30478. [2020-12-22 15:27:30,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30478 states. [2020-12-22 15:27:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30478 states to 30478 states and 40166 transitions. [2020-12-22 15:27:30,306 INFO L78 Accepts]: Start accepts. Automaton has 30478 states and 40166 transitions. Word has length 214 [2020-12-22 15:27:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:30,307 INFO L481 AbstractCegarLoop]: Abstraction has 30478 states and 40166 transitions. [2020-12-22 15:27:30,307 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:30,307 INFO L276 IsEmpty]: Start isEmpty. Operand 30478 states and 40166 transitions. [2020-12-22 15:27:30,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-12-22 15:27:30,314 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:30,314 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:30,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:27:30,315 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:30,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:30,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1549187511, now seen corresponding path program 1 times [2020-12-22 15:27:30,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:30,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707415667] [2020-12-22 15:27:30,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:30,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:30,678 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2020-12-22 15:27:30,679 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707415667] [2020-12-22 15:27:30,679 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:30,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:30,679 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368846666] [2020-12-22 15:27:30,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:30,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:30,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:30,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:30,681 INFO L87 Difference]: Start difference. First operand 30478 states and 40166 transitions. Second operand 3 states. [2020-12-22 15:27:34,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:34,031 INFO L93 Difference]: Finished difference Result 62600 states and 82574 transitions. [2020-12-22 15:27:34,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:34,031 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 235 [2020-12-22 15:27:34,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:34,070 INFO L225 Difference]: With dead ends: 62600 [2020-12-22 15:27:34,070 INFO L226 Difference]: Without dead ends: 32174 [2020-12-22 15:27:34,098 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 15:27:34,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32174 states. [2020-12-22 15:27:35,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32174 to 32150. [2020-12-22 15:27:35,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:35,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 42422 transitions. [2020-12-22 15:27:35,100 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 42422 transitions. Word has length 235 [2020-12-22 15:27:35,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:35,101 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 42422 transitions. [2020-12-22 15:27:35,101 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 42422 transitions. [2020-12-22 15:27:35,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-12-22 15:27:35,105 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:35,106 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:35,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 15:27:35,106 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:35,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:35,107 INFO L82 PathProgramCache]: Analyzing trace with hash 623700801, now seen corresponding path program 1 times [2020-12-22 15:27:35,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:35,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807847377] [2020-12-22 15:27:35,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:36,038 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:36,039 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807847377] [2020-12-22 15:27:36,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:36,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:27:36,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527722029] [2020-12-22 15:27:36,040 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:27:36,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:36,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:27:36,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:27:36,041 INFO L87 Difference]: Start difference. First operand 32150 states and 42422 transitions. Second operand 3 states. [2020-12-22 15:27:37,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:37,424 INFO L93 Difference]: Finished difference Result 64248 states and 84786 transitions. [2020-12-22 15:27:37,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:37,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-12-22 15:27:37,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:37,470 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:37,471 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:37,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:27:37,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:27:38,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:27:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:38,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 42294 transitions. [2020-12-22 15:27:38,569 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 42294 transitions. Word has length 236 [2020-12-22 15:27:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:38,569 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 42294 transitions. [2020-12-22 15:27:38,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:27:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 42294 transitions. [2020-12-22 15:27:38,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-12-22 15:27:38,574 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:38,574 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:38,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 15:27:38,575 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:38,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:38,576 INFO L82 PathProgramCache]: Analyzing trace with hash -2140168060, now seen corresponding path program 1 times [2020-12-22 15:27:38,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:38,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774373797] [2020-12-22 15:27:38,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:39,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774373797] [2020-12-22 15:27:39,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:39,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:39,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848440903] [2020-12-22 15:27:39,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:39,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:39,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:39,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:39,287 INFO L87 Difference]: Start difference. First operand 32150 states and 42294 transitions. Second operand 4 states. [2020-12-22 15:27:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:41,094 INFO L93 Difference]: Finished difference Result 64248 states and 84530 transitions. [2020-12-22 15:27:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:41,095 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 237 [2020-12-22 15:27:41,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:41,134 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:41,134 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:41,160 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 15:27:41,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:27:42,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:27:42,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 42166 transitions. [2020-12-22 15:27:42,517 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 42166 transitions. Word has length 237 [2020-12-22 15:27:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:42,518 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 42166 transitions. [2020-12-22 15:27:42,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 42166 transitions. [2020-12-22 15:27:42,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-12-22 15:27:42,523 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:42,524 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:42,524 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 15:27:42,524 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:42,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1920607876, now seen corresponding path program 1 times [2020-12-22 15:27:42,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:42,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762209990] [2020-12-22 15:27:42,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:43,023 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:43,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762209990] [2020-12-22 15:27:43,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:43,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:43,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228193302] [2020-12-22 15:27:43,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:43,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:43,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:43,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:43,028 INFO L87 Difference]: Start difference. First operand 32150 states and 42166 transitions. Second operand 4 states. [2020-12-22 15:27:45,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:45,001 INFO L93 Difference]: Finished difference Result 64248 states and 84274 transitions. [2020-12-22 15:27:45,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:45,003 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 238 [2020-12-22 15:27:45,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:45,044 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:45,044 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:45,072 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 15:27:45,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:27:46,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:27:46,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 42038 transitions. [2020-12-22 15:27:46,570 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 42038 transitions. Word has length 238 [2020-12-22 15:27:46,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:46,570 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 42038 transitions. [2020-12-22 15:27:46,570 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:46,570 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 42038 transitions. [2020-12-22 15:27:46,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-12-22 15:27:46,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:46,576 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:46,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 15:27:46,576 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:46,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:46,577 INFO L82 PathProgramCache]: Analyzing trace with hash 590939487, now seen corresponding path program 1 times [2020-12-22 15:27:46,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:46,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761076924] [2020-12-22 15:27:46,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:47,321 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:47,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761076924] [2020-12-22 15:27:47,325 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:47,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:47,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232377767] [2020-12-22 15:27:47,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:47,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:47,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:47,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:47,330 INFO L87 Difference]: Start difference. First operand 32150 states and 42038 transitions. Second operand 4 states. [2020-12-22 15:27:49,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:49,275 INFO L93 Difference]: Finished difference Result 64248 states and 84018 transitions. [2020-12-22 15:27:49,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:49,276 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 239 [2020-12-22 15:27:49,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:49,314 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:49,314 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:49,339 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 15:27:49,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:27:50,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:27:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:50,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41910 transitions. [2020-12-22 15:27:50,926 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41910 transitions. Word has length 239 [2020-12-22 15:27:50,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:50,926 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41910 transitions. [2020-12-22 15:27:50,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:50,926 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41910 transitions. [2020-12-22 15:27:50,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-12-22 15:27:50,931 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:50,931 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:50,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 15:27:50,932 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:50,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:50,932 INFO L82 PathProgramCache]: Analyzing trace with hash 1139645367, now seen corresponding path program 1 times [2020-12-22 15:27:50,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:50,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703005002] [2020-12-22 15:27:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:51,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:51,719 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:51,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703005002] [2020-12-22 15:27:51,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:51,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:51,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574759483] [2020-12-22 15:27:51,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:51,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:51,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:51,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:51,722 INFO L87 Difference]: Start difference. First operand 32150 states and 41910 transitions. Second operand 4 states. [2020-12-22 15:27:53,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:53,660 INFO L93 Difference]: Finished difference Result 64248 states and 83762 transitions. [2020-12-22 15:27:53,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:53,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 240 [2020-12-22 15:27:53,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:53,696 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:53,697 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:53,720 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 15:27:53,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:27:55,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:27:55,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:27:55,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41782 transitions. [2020-12-22 15:27:55,570 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41782 transitions. Word has length 240 [2020-12-22 15:27:55,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:27:55,570 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41782 transitions. [2020-12-22 15:27:55,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:27:55,571 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41782 transitions. [2020-12-22 15:27:55,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 15:27:55,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:27:55,575 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:27:55,575 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 15:27:55,575 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:27:55,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:27:55,578 INFO L82 PathProgramCache]: Analyzing trace with hash 969807418, now seen corresponding path program 1 times [2020-12-22 15:27:55,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:27:55,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54047142] [2020-12-22 15:27:55,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:27:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:27:56,125 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:27:56,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54047142] [2020-12-22 15:27:56,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:27:56,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:27:56,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175511707] [2020-12-22 15:27:56,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:27:56,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:27:56,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:27:56,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:27:56,128 INFO L87 Difference]: Start difference. First operand 32150 states and 41782 transitions. Second operand 4 states. [2020-12-22 15:27:58,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:27:58,268 INFO L93 Difference]: Finished difference Result 64248 states and 83506 transitions. [2020-12-22 15:27:58,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:27:58,269 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 241 [2020-12-22 15:27:58,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:27:58,304 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:27:58,304 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:27:58,325 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 15:27:58,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:00,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:00,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:00,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41654 transitions. [2020-12-22 15:28:00,237 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41654 transitions. Word has length 241 [2020-12-22 15:28:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:00,238 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41654 transitions. [2020-12-22 15:28:00,238 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41654 transitions. [2020-12-22 15:28:00,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-12-22 15:28:00,243 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:00,243 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:00,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 15:28:00,244 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:00,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:00,244 INFO L82 PathProgramCache]: Analyzing trace with hash -52750, now seen corresponding path program 1 times [2020-12-22 15:28:00,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:00,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154360605] [2020-12-22 15:28:00,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:00,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:00,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154360605] [2020-12-22 15:28:00,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:00,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:00,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253741863] [2020-12-22 15:28:00,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:00,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:00,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:00,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:00,844 INFO L87 Difference]: Start difference. First operand 32150 states and 41654 transitions. Second operand 4 states. [2020-12-22 15:28:03,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:03,178 INFO L93 Difference]: Finished difference Result 64248 states and 83250 transitions. [2020-12-22 15:28:03,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:03,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 242 [2020-12-22 15:28:03,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:03,213 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:03,214 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:03,236 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 15:28:03,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:05,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:05,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41526 transitions. [2020-12-22 15:28:05,268 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41526 transitions. Word has length 242 [2020-12-22 15:28:05,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:05,269 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41526 transitions. [2020-12-22 15:28:05,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:05,269 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41526 transitions. [2020-12-22 15:28:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-12-22 15:28:05,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:05,274 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:05,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 15:28:05,275 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:05,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:05,275 INFO L82 PathProgramCache]: Analyzing trace with hash -797931, now seen corresponding path program 1 times [2020-12-22 15:28:05,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:05,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117131271] [2020-12-22 15:28:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:05,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117131271] [2020-12-22 15:28:05,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:05,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:05,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885309462] [2020-12-22 15:28:05,695 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:05,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:05,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:05,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:05,696 INFO L87 Difference]: Start difference. First operand 32150 states and 41526 transitions. Second operand 4 states. [2020-12-22 15:28:08,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:08,237 INFO L93 Difference]: Finished difference Result 64248 states and 82994 transitions. [2020-12-22 15:28:08,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:08,240 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 243 [2020-12-22 15:28:08,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:08,288 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:08,288 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:08,316 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 15:28:08,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:10,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:10,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:10,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41398 transitions. [2020-12-22 15:28:10,474 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41398 transitions. Word has length 243 [2020-12-22 15:28:10,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:10,474 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41398 transitions. [2020-12-22 15:28:10,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41398 transitions. [2020-12-22 15:28:10,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-12-22 15:28:10,478 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:10,478 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:10,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 15:28:10,479 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:10,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:10,479 INFO L82 PathProgramCache]: Analyzing trace with hash -23749587, now seen corresponding path program 1 times [2020-12-22 15:28:10,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:10,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854734009] [2020-12-22 15:28:10,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:11,026 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:11,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854734009] [2020-12-22 15:28:11,027 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:11,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:11,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115377856] [2020-12-22 15:28:11,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:11,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:11,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:11,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:11,028 INFO L87 Difference]: Start difference. First operand 32150 states and 41398 transitions. Second operand 4 states. [2020-12-22 15:28:13,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:13,497 INFO L93 Difference]: Finished difference Result 64248 states and 82738 transitions. [2020-12-22 15:28:13,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:13,498 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 244 [2020-12-22 15:28:13,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:13,534 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:13,534 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:13,565 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 15:28:13,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:15,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:15,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41270 transitions. [2020-12-22 15:28:15,863 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41270 transitions. Word has length 244 [2020-12-22 15:28:15,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:15,863 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41270 transitions. [2020-12-22 15:28:15,863 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:15,863 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41270 transitions. [2020-12-22 15:28:15,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-12-22 15:28:15,867 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:15,867 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:15,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 15:28:15,867 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:15,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:15,868 INFO L82 PathProgramCache]: Analyzing trace with hash -735101968, now seen corresponding path program 1 times [2020-12-22 15:28:15,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:15,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284632056] [2020-12-22 15:28:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:16,238 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:16,238 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284632056] [2020-12-22 15:28:16,238 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:16,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:16,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945625014] [2020-12-22 15:28:16,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:16,239 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:16,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:16,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:16,239 INFO L87 Difference]: Start difference. First operand 32150 states and 41270 transitions. Second operand 4 states. [2020-12-22 15:28:18,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:18,930 INFO L93 Difference]: Finished difference Result 64248 states and 82482 transitions. [2020-12-22 15:28:18,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:18,931 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 245 [2020-12-22 15:28:18,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:18,970 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:18,971 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:18,994 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 15:28:19,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:21,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:21,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:21,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41142 transitions. [2020-12-22 15:28:21,431 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41142 transitions. Word has length 245 [2020-12-22 15:28:21,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:21,431 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41142 transitions. [2020-12-22 15:28:21,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:21,432 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41142 transitions. [2020-12-22 15:28:21,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-12-22 15:28:21,435 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:21,435 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:21,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 15:28:21,436 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:21,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:21,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1312040344, now seen corresponding path program 1 times [2020-12-22 15:28:21,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:21,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198640063] [2020-12-22 15:28:21,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:21,994 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:21,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198640063] [2020-12-22 15:28:21,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:21,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:21,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398744346] [2020-12-22 15:28:21,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:21,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:21,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:21,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:21,999 INFO L87 Difference]: Start difference. First operand 32150 states and 41142 transitions. Second operand 4 states. [2020-12-22 15:28:24,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:24,730 INFO L93 Difference]: Finished difference Result 64248 states and 82226 transitions. [2020-12-22 15:28:24,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:24,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 246 [2020-12-22 15:28:24,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:24,770 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:24,770 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:24,797 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 15:28:24,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:27,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:27,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:27,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 41014 transitions. [2020-12-22 15:28:27,513 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 41014 transitions. Word has length 246 [2020-12-22 15:28:27,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:27,513 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 41014 transitions. [2020-12-22 15:28:27,513 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 41014 transitions. [2020-12-22 15:28:27,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2020-12-22 15:28:27,517 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:27,517 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:27,517 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 15:28:27,517 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:27,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:27,518 INFO L82 PathProgramCache]: Analyzing trace with hash -2017111861, now seen corresponding path program 1 times [2020-12-22 15:28:27,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:27,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100230884] [2020-12-22 15:28:27,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:27,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:27,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100230884] [2020-12-22 15:28:27,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:27,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:27,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132586392] [2020-12-22 15:28:27,810 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:27,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:27,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:27,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:27,810 INFO L87 Difference]: Start difference. First operand 32150 states and 41014 transitions. Second operand 4 states. [2020-12-22 15:28:30,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:30,820 INFO L93 Difference]: Finished difference Result 64248 states and 81970 transitions. [2020-12-22 15:28:30,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:30,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 247 [2020-12-22 15:28:30,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:30,854 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:30,854 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:30,891 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 15:28:30,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:33,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:33,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:33,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 40886 transitions. [2020-12-22 15:28:33,634 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 40886 transitions. Word has length 247 [2020-12-22 15:28:33,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:33,635 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 40886 transitions. [2020-12-22 15:28:33,635 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:33,635 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 40886 transitions. [2020-12-22 15:28:33,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-12-22 15:28:33,638 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:33,639 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:33,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-22 15:28:33,639 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:33,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:33,639 INFO L82 PathProgramCache]: Analyzing trace with hash 1895623843, now seen corresponding path program 1 times [2020-12-22 15:28:33,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:33,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774603947] [2020-12-22 15:28:33,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:34,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774603947] [2020-12-22 15:28:34,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:34,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:34,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426048320] [2020-12-22 15:28:34,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:34,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:34,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:34,109 INFO L87 Difference]: Start difference. First operand 32150 states and 40886 transitions. Second operand 4 states. [2020-12-22 15:28:37,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:37,329 INFO L93 Difference]: Finished difference Result 64248 states and 81714 transitions. [2020-12-22 15:28:37,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:37,330 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 248 [2020-12-22 15:28:37,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:37,368 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:37,368 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:37,390 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 15:28:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:40,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:40,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 40758 transitions. [2020-12-22 15:28:40,393 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 40758 transitions. Word has length 248 [2020-12-22 15:28:40,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:40,393 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 40758 transitions. [2020-12-22 15:28:40,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:40,393 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 40758 transitions. [2020-12-22 15:28:40,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-12-22 15:28:40,397 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:40,397 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:40,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-22 15:28:40,397 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:40,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:40,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1363471962, now seen corresponding path program 1 times [2020-12-22 15:28:40,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:40,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034951449] [2020-12-22 15:28:40,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:40,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:40,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034951449] [2020-12-22 15:28:40,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:40,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:28:40,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110021661] [2020-12-22 15:28:40,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:40,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:40,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:40,735 INFO L87 Difference]: Start difference. First operand 32150 states and 40758 transitions. Second operand 4 states. [2020-12-22 15:28:43,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:43,996 INFO L93 Difference]: Finished difference Result 64248 states and 81458 transitions. [2020-12-22 15:28:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:28:43,997 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 249 [2020-12-22 15:28:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:44,032 INFO L225 Difference]: With dead ends: 64248 [2020-12-22 15:28:44,032 INFO L226 Difference]: Without dead ends: 32150 [2020-12-22 15:28:44,057 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 15:28:44,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32150 states. [2020-12-22 15:28:47,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32150 to 32150. [2020-12-22 15:28:47,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32150 states. [2020-12-22 15:28:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32150 states to 32150 states and 40630 transitions. [2020-12-22 15:28:47,145 INFO L78 Accepts]: Start accepts. Automaton has 32150 states and 40630 transitions. Word has length 249 [2020-12-22 15:28:47,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:47,145 INFO L481 AbstractCegarLoop]: Abstraction has 32150 states and 40630 transitions. [2020-12-22 15:28:47,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 32150 states and 40630 transitions. [2020-12-22 15:28:47,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-12-22 15:28:47,149 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:28:47,149 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:28:47,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-22 15:28:47,150 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:28:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:28:47,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1363412380, now seen corresponding path program 1 times [2020-12-22 15:28:47,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:28:47,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046093900] [2020-12-22 15:28:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:28:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:28:47,510 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-12-22 15:28:47,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046093900] [2020-12-22 15:28:47,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:28:47,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:28:47,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550692072] [2020-12-22 15:28:47,511 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:28:47,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:28:47,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:28:47,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:28:47,512 INFO L87 Difference]: Start difference. First operand 32150 states and 40630 transitions. Second operand 4 states. [2020-12-22 15:28:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:28:53,826 INFO L93 Difference]: Finished difference Result 64100 states and 80936 transitions. [2020-12-22 15:28:53,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:28:53,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 249 [2020-12-22 15:28:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:28:53,827 INFO L225 Difference]: With dead ends: 64100 [2020-12-22 15:28:53,827 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 15:28:53,857 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 15:28:53,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 15:28:53,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 15:28:53,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 15:28:53,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 15:28:53,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 249 [2020-12-22 15:28:53,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:28:53,858 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 15:28:53,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:28:53,858 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 15:28:53,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 15:28:53,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-22 15:28:53,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 15:28:54,126 WARN L197 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:28:55,166 WARN L197 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 57 [2020-12-22 15:28:56,263 WARN L197 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:28:57,230 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-12-22 15:28:58,413 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:28:59,420 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 57 [2020-12-22 15:29:00,472 WARN L197 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:29:02,296 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:29:03,984 WARN L197 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2020-12-22 15:29:04,583 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57 [2020-12-22 15:29:05,794 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-12-22 15:29:07,606 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:29:07,873 WARN L197 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57 [2020-12-22 15:29:09,504 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-12-22 15:29:11,364 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 57 [2020-12-22 15:29:13,379 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 57 [2020-12-22 15:29:14,486 WARN L197 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57 [2020-12-22 15:29:15,450 WARN L197 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 57 [2020-12-22 15:29:17,069 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57 [2020-12-22 15:29:17,559 WARN L197 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-12-22 15:29:19,895 WARN L197 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-12-22 15:29:20,258 WARN L197 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 57 [2020-12-22 15:29:21,274 WARN L197 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57 [2020-12-22 15:29:22,207 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-12-22 15:29:28,651 WARN L197 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 57