/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:52:55,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:52:55,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:52:55,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:52:55,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:52:55,444 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:52:55,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:52:55,470 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:52:55,472 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:52:55,474 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:52:55,475 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:52:55,478 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:52:55,479 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:52:55,480 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:52:55,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:52:55,485 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:52:55,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:52:55,487 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:52:55,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:52:55,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:52:55,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:52:55,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:52:55,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:52:55,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:52:55,503 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 15:52:55,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:52:55,508 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:52:55,509 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:52:55,510 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:52:55,511 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:52:55,512 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:52:55,512 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:52:55,513 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:52:55,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:52:55,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:52:55,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:52:55,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:52:55,548 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:52:55,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:52:55,550 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:52:55,550 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:52:55,550 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:52:55,550 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:52:55,551 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:52:55,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:52:55,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:52:55,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:52:55,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:52:55,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:52:55,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:52:55,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:52:55,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:52:55,553 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:52:55,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:52:55,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:52:55,553 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:52:55,554 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:52:55,554 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:52:55,554 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:52:55,554 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:52:55,554 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:52:55,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:52:55,555 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:52:55,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:52:55,981 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:52:55,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:52:55,986 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:52:55,987 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:52:55,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2020-12-22 15:52:56,084 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1ebb13/7489c25703a54fea830ff2e203473fd2/FLAGef01ab1cb [2020-12-22 15:52:57,252 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:52:57,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2020-12-22 15:52:57,306 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1ebb13/7489c25703a54fea830ff2e203473fd2/FLAGef01ab1cb [2020-12-22 15:52:57,644 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5c1ebb13/7489c25703a54fea830ff2e203473fd2 [2020-12-22 15:52:57,647 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:52:57,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:52:57,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:52:57,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:52:57,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:52:57,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:57" (1/1) ... [2020-12-22 15:52:57,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40071f74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:52:57, skipping insertion in model container [2020-12-22 15:52:57,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:52:57" (1/1) ... [2020-12-22 15:52:57,670 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:52:57,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:52:59,603 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2020-12-22 15:52:59,607 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2020-12-22 15:52:59,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2020-12-22 15:52:59,608 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2020-12-22 15:52:59,623 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:52:59,651 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:53:00,055 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193323,193336] [2020-12-22 15:53:00,058 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193489,193502] [2020-12-22 15:53:00,059 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193653,193666] [2020-12-22 15:53:00,059 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i[193818,193831] [2020-12-22 15:53:00,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:53:00,478 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:53:00,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00 WrapperNode [2020-12-22 15:53:00,480 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:53:00,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:53:00,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:53:00,482 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:53:00,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:00,596 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:00,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:53:00,860 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:53:00,860 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:53:00,860 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:53:00,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:00,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:00,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:00,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:01,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:01,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:01,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (1/1) ... [2020-12-22 15:53:01,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:53:01,275 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:53:01,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:53:01,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:53:01,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (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 15:53:01,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:53:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:53:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:53:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:53:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:53:01,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:53:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:53:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-12-22 15:53:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:53:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:53:01,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:53:01,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:53:10,970 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 15:53:10,974 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 15:53:10,975 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 15:53:10,975 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:53:10,976 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:53:10,976 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:53:10,977 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 15:53:10,977 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2020-12-22 15:53:10,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2020-12-22 15:53:10,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2020-12-22 15:53:10,981 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:53:11,091 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:53:11,091 INFO L299 CfgBuilder]: Removed 1490 assume(true) statements. [2020-12-22 15:53:11,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:53:11 BoogieIcfgContainer [2020-12-22 15:53:11,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:53:11,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:53:11,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:53:11,118 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:53:11,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:52:57" (1/3) ... [2020-12-22 15:53:11,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d27fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:53:11, skipping insertion in model container [2020-12-22 15:53:11,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:00" (2/3) ... [2020-12-22 15:53:11,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c7d27fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:53:11, skipping insertion in model container [2020-12-22 15:53:11,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:53:11" (3/3) ... [2020-12-22 15:53:11,128 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_fs-binfmt_misc.cil.i [2020-12-22 15:53:11,135 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:53:11,144 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 21 error locations. [2020-12-22 15:53:11,162 INFO L253 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2020-12-22 15:53:11,201 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:53:11,202 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:53:11,202 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:53:11,202 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:53:11,202 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:53:11,202 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:53:11,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:53:11,203 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:53:11,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1616 states. [2020-12-22 15:53:11,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 15:53:11,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:11,275 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:11,276 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:11,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:11,283 INFO L82 PathProgramCache]: Analyzing trace with hash 612313430, now seen corresponding path program 1 times [2020-12-22 15:53:11,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:11,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367807459] [2020-12-22 15:53:11,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:11,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:12,036 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 15:53:12,037 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367807459] [2020-12-22 15:53:12,038 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:12,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:12,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039690943] [2020-12-22 15:53:12,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:12,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:12,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:12,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:12,065 INFO L87 Difference]: Start difference. First operand 1616 states. Second operand 3 states. [2020-12-22 15:53:12,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:12,695 INFO L93 Difference]: Finished difference Result 4234 states and 5721 transitions. [2020-12-22 15:53:12,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:12,697 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 93 [2020-12-22 15:53:12,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:12,730 INFO L225 Difference]: With dead ends: 4234 [2020-12-22 15:53:12,730 INFO L226 Difference]: Without dead ends: 2634 [2020-12-22 15:53:12,742 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 15:53:12,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2634 states. [2020-12-22 15:53:12,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2634 to 2610. [2020-12-22 15:53:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2610 states. [2020-12-22 15:53:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3359 transitions. [2020-12-22 15:53:12,935 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3359 transitions. Word has length 93 [2020-12-22 15:53:12,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:12,937 INFO L481 AbstractCegarLoop]: Abstraction has 2610 states and 3359 transitions. [2020-12-22 15:53:12,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:12,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3359 transitions. [2020-12-22 15:53:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-12-22 15:53:12,952 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:12,953 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:12,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:53:12,954 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:12,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:12,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1275313139, now seen corresponding path program 1 times [2020-12-22 15:53:12,957 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:12,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498949748] [2020-12-22 15:53:12,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:13,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:13,263 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 15:53:13,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498949748] [2020-12-22 15:53:13,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:13,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:13,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943139939] [2020-12-22 15:53:13,268 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:13,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:13,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:13,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:13,270 INFO L87 Difference]: Start difference. First operand 2610 states and 3359 transitions. Second operand 3 states. [2020-12-22 15:53:13,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:13,784 INFO L93 Difference]: Finished difference Result 5925 states and 7676 transitions. [2020-12-22 15:53:13,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:13,785 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 119 [2020-12-22 15:53:13,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:13,805 INFO L225 Difference]: With dead ends: 5925 [2020-12-22 15:53:13,805 INFO L226 Difference]: Without dead ends: 3511 [2020-12-22 15:53:13,812 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 15:53:13,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3511 states. [2020-12-22 15:53:14,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3511 to 3427. [2020-12-22 15:53:14,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3427 states. [2020-12-22 15:53:14,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 4446 transitions. [2020-12-22 15:53:14,044 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 4446 transitions. Word has length 119 [2020-12-22 15:53:14,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:14,045 INFO L481 AbstractCegarLoop]: Abstraction has 3427 states and 4446 transitions. [2020-12-22 15:53:14,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:14,045 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 4446 transitions. [2020-12-22 15:53:14,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-12-22 15:53:14,049 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:14,049 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:14,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:53:14,050 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:14,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:14,050 INFO L82 PathProgramCache]: Analyzing trace with hash -2112429701, now seen corresponding path program 1 times [2020-12-22 15:53:14,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:14,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544698522] [2020-12-22 15:53:14,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:14,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:14,230 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 15:53:14,231 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544698522] [2020-12-22 15:53:14,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:14,231 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:14,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916810286] [2020-12-22 15:53:14,232 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:14,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:14,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:14,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:14,233 INFO L87 Difference]: Start difference. First operand 3427 states and 4446 transitions. Second operand 3 states. [2020-12-22 15:53:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:14,666 INFO L93 Difference]: Finished difference Result 8440 states and 11032 transitions. [2020-12-22 15:53:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:14,666 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-12-22 15:53:14,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:14,697 INFO L225 Difference]: With dead ends: 8440 [2020-12-22 15:53:14,697 INFO L226 Difference]: Without dead ends: 5209 [2020-12-22 15:53:14,707 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 15:53:14,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-12-22 15:53:14,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 5121. [2020-12-22 15:53:14,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5121 states. [2020-12-22 15:53:14,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5121 states to 5121 states and 6701 transitions. [2020-12-22 15:53:14,925 INFO L78 Accepts]: Start accepts. Automaton has 5121 states and 6701 transitions. Word has length 120 [2020-12-22 15:53:14,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:14,928 INFO L481 AbstractCegarLoop]: Abstraction has 5121 states and 6701 transitions. [2020-12-22 15:53:14,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:14,929 INFO L276 IsEmpty]: Start isEmpty. Operand 5121 states and 6701 transitions. [2020-12-22 15:53:14,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-22 15:53:14,932 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:14,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:14,933 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:53:14,933 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:14,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:14,934 INFO L82 PathProgramCache]: Analyzing trace with hash -567235804, now seen corresponding path program 1 times [2020-12-22 15:53:14,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:14,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149428109] [2020-12-22 15:53:14,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:15,295 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 15:53:15,295 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149428109] [2020-12-22 15:53:15,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:15,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:15,297 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059497077] [2020-12-22 15:53:15,298 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:15,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:15,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:15,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:15,299 INFO L87 Difference]: Start difference. First operand 5121 states and 6701 transitions. Second operand 3 states. [2020-12-22 15:53:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:15,952 INFO L93 Difference]: Finished difference Result 11222 states and 14682 transitions. [2020-12-22 15:53:15,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:15,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-12-22 15:53:15,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:15,991 INFO L225 Difference]: With dead ends: 11222 [2020-12-22 15:53:15,992 INFO L226 Difference]: Without dead ends: 6297 [2020-12-22 15:53:16,003 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 15:53:16,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6297 states. [2020-12-22 15:53:16,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6297 to 6223. [2020-12-22 15:53:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6223 states. [2020-12-22 15:53:16,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6223 states to 6223 states and 8084 transitions. [2020-12-22 15:53:16,236 INFO L78 Accepts]: Start accepts. Automaton has 6223 states and 8084 transitions. Word has length 121 [2020-12-22 15:53:16,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:16,237 INFO L481 AbstractCegarLoop]: Abstraction has 6223 states and 8084 transitions. [2020-12-22 15:53:16,239 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:16,239 INFO L276 IsEmpty]: Start isEmpty. Operand 6223 states and 8084 transitions. [2020-12-22 15:53:16,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 15:53:16,246 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:16,246 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1] [2020-12-22 15:53:16,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:53:16,247 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:16,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:16,247 INFO L82 PathProgramCache]: Analyzing trace with hash -629602836, now seen corresponding path program 1 times [2020-12-22 15:53:16,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:16,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755743107] [2020-12-22 15:53:16,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:16,487 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:53:16,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755743107] [2020-12-22 15:53:16,488 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:16,488 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:16,488 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219565052] [2020-12-22 15:53:16,489 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:16,489 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:16,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:16,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:16,490 INFO L87 Difference]: Start difference. First operand 6223 states and 8084 transitions. Second operand 3 states. [2020-12-22 15:53:17,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:17,074 INFO L93 Difference]: Finished difference Result 17461 states and 22831 transitions. [2020-12-22 15:53:17,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:17,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-22 15:53:17,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:17,152 INFO L225 Difference]: With dead ends: 17461 [2020-12-22 15:53:17,152 INFO L226 Difference]: Without dead ends: 11647 [2020-12-22 15:53:17,165 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 15:53:17,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11647 states. [2020-12-22 15:53:17,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11647 to 11623. [2020-12-22 15:53:17,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11623 states. [2020-12-22 15:53:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11623 states to 11623 states and 15172 transitions. [2020-12-22 15:53:17,601 INFO L78 Accepts]: Start accepts. Automaton has 11623 states and 15172 transitions. Word has length 126 [2020-12-22 15:53:17,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:17,602 INFO L481 AbstractCegarLoop]: Abstraction has 11623 states and 15172 transitions. [2020-12-22 15:53:17,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:17,602 INFO L276 IsEmpty]: Start isEmpty. Operand 11623 states and 15172 transitions. [2020-12-22 15:53:17,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 15:53:17,605 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:17,605 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1] [2020-12-22 15:53:17,606 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:53:17,606 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:17,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:17,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1671219754, now seen corresponding path program 1 times [2020-12-22 15:53:17,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:17,607 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676128436] [2020-12-22 15:53:17,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:17,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:18,007 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 15:53:18,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676128436] [2020-12-22 15:53:18,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:18,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:53:18,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306157999] [2020-12-22 15:53:18,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:53:18,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:53:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:53:18,011 INFO L87 Difference]: Start difference. First operand 11623 states and 15172 transitions. Second operand 4 states. [2020-12-22 15:53:18,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:18,553 INFO L93 Difference]: Finished difference Result 11623 states and 15172 transitions. [2020-12-22 15:53:18,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:53:18,554 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2020-12-22 15:53:18,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:18,585 INFO L225 Difference]: With dead ends: 11623 [2020-12-22 15:53:18,586 INFO L226 Difference]: Without dead ends: 11617 [2020-12-22 15:53:18,592 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 15:53:18,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11617 states. [2020-12-22 15:53:19,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11617 to 11617. [2020-12-22 15:53:19,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11617 states. [2020-12-22 15:53:19,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11617 states to 11617 states and 15166 transitions. [2020-12-22 15:53:19,107 INFO L78 Accepts]: Start accepts. Automaton has 11617 states and 15166 transitions. Word has length 126 [2020-12-22 15:53:19,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:19,107 INFO L481 AbstractCegarLoop]: Abstraction has 11617 states and 15166 transitions. [2020-12-22 15:53:19,108 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:53:19,108 INFO L276 IsEmpty]: Start isEmpty. Operand 11617 states and 15166 transitions. [2020-12-22 15:53:19,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-12-22 15:53:19,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:19,111 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:19,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:53:19,112 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:19,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:19,112 INFO L82 PathProgramCache]: Analyzing trace with hash -275429363, now seen corresponding path program 1 times [2020-12-22 15:53:19,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:19,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350173426] [2020-12-22 15:53:19,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:19,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:19,431 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 15:53:19,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350173426] [2020-12-22 15:53:19,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:19,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:53:19,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114119078] [2020-12-22 15:53:19,434 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:53:19,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:19,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:53:19,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:53:19,435 INFO L87 Difference]: Start difference. First operand 11617 states and 15166 transitions. Second operand 4 states. [2020-12-22 15:53:19,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:19,919 INFO L93 Difference]: Finished difference Result 11617 states and 15166 transitions. [2020-12-22 15:53:19,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:53:19,920 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 128 [2020-12-22 15:53:19,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:19,946 INFO L225 Difference]: With dead ends: 11617 [2020-12-22 15:53:19,946 INFO L226 Difference]: Without dead ends: 11611 [2020-12-22 15:53:19,953 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 15:53:19,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11611 states. [2020-12-22 15:53:20,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11611 to 11611. [2020-12-22 15:53:20,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11611 states. [2020-12-22 15:53:20,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11611 states to 11611 states and 15160 transitions. [2020-12-22 15:53:20,396 INFO L78 Accepts]: Start accepts. Automaton has 11611 states and 15160 transitions. Word has length 128 [2020-12-22 15:53:20,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:20,397 INFO L481 AbstractCegarLoop]: Abstraction has 11611 states and 15160 transitions. [2020-12-22 15:53:20,397 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:53:20,397 INFO L276 IsEmpty]: Start isEmpty. Operand 11611 states and 15160 transitions. [2020-12-22 15:53:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-12-22 15:53:20,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:20,401 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:53:20,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:53:20,401 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:20,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:20,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1600510576, now seen corresponding path program 1 times [2020-12-22 15:53:20,402 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:20,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986663279] [2020-12-22 15:53:20,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:20,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:20,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-12-22 15:53:20,713 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986663279] [2020-12-22 15:53:20,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:20,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:53:20,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788141188] [2020-12-22 15:53:20,714 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:53:20,714 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:20,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:53:20,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:53:20,715 INFO L87 Difference]: Start difference. First operand 11611 states and 15160 transitions. Second operand 4 states. [2020-12-22 15:53:21,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:21,321 INFO L93 Difference]: Finished difference Result 11611 states and 15160 transitions. [2020-12-22 15:53:21,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:53:21,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 130 [2020-12-22 15:53:21,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:21,349 INFO L225 Difference]: With dead ends: 11611 [2020-12-22 15:53:21,349 INFO L226 Difference]: Without dead ends: 11565 [2020-12-22 15:53:21,354 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 15:53:21,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11565 states. [2020-12-22 15:53:21,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11565 to 11565. [2020-12-22 15:53:21,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11565 states. [2020-12-22 15:53:21,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11565 states to 11565 states and 15093 transitions. [2020-12-22 15:53:21,835 INFO L78 Accepts]: Start accepts. Automaton has 11565 states and 15093 transitions. Word has length 130 [2020-12-22 15:53:21,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:21,836 INFO L481 AbstractCegarLoop]: Abstraction has 11565 states and 15093 transitions. [2020-12-22 15:53:21,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:53:21,836 INFO L276 IsEmpty]: Start isEmpty. Operand 11565 states and 15093 transitions. [2020-12-22 15:53:21,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-12-22 15:53:21,846 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:21,846 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:21,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:53:21,847 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:21,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:21,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1454743280, now seen corresponding path program 1 times [2020-12-22 15:53:21,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:21,848 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800386237] [2020-12-22 15:53:21,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:22,017 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:53:22,017 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800386237] [2020-12-22 15:53:22,017 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:22,018 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:22,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257380007] [2020-12-22 15:53:22,018 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:22,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:22,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:22,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:22,024 INFO L87 Difference]: Start difference. First operand 11565 states and 15093 transitions. Second operand 3 states. [2020-12-22 15:53:22,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:22,949 INFO L93 Difference]: Finished difference Result 28153 states and 36841 transitions. [2020-12-22 15:53:22,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:22,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 168 [2020-12-22 15:53:22,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:22,991 INFO L225 Difference]: With dead ends: 28153 [2020-12-22 15:53:22,992 INFO L226 Difference]: Without dead ends: 16713 [2020-12-22 15:53:23,010 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 15:53:23,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16713 states. [2020-12-22 15:53:23,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16713 to 16689. [2020-12-22 15:53:23,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16689 states. [2020-12-22 15:53:23,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 21832 transitions. [2020-12-22 15:53:23,790 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 21832 transitions. Word has length 168 [2020-12-22 15:53:23,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:23,793 INFO L481 AbstractCegarLoop]: Abstraction has 16689 states and 21832 transitions. [2020-12-22 15:53:23,793 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:23,793 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 21832 transitions. [2020-12-22 15:53:23,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-22 15:53:23,808 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:23,810 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 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 15:53:23,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:53:23,811 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:23,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:23,812 INFO L82 PathProgramCache]: Analyzing trace with hash 699024311, now seen corresponding path program 1 times [2020-12-22 15:53:23,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:23,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810682567] [2020-12-22 15:53:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:24,060 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 15:53:24,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810682567] [2020-12-22 15:53:24,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:24,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:24,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443164155] [2020-12-22 15:53:24,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:24,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:24,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:24,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:24,064 INFO L87 Difference]: Start difference. First operand 16689 states and 21832 transitions. Second operand 3 states. [2020-12-22 15:53:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:25,230 INFO L93 Difference]: Finished difference Result 38353 states and 50231 transitions. [2020-12-22 15:53:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:25,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-12-22 15:53:25,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:25,286 INFO L225 Difference]: With dead ends: 38353 [2020-12-22 15:53:25,286 INFO L226 Difference]: Without dead ends: 21837 [2020-12-22 15:53:25,319 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 15:53:25,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21837 states. [2020-12-22 15:53:26,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21837 to 16689. [2020-12-22 15:53:26,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16689 states. [2020-12-22 15:53:26,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16689 states to 16689 states and 21831 transitions. [2020-12-22 15:53:26,221 INFO L78 Accepts]: Start accepts. Automaton has 16689 states and 21831 transitions. Word has length 184 [2020-12-22 15:53:26,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:26,221 INFO L481 AbstractCegarLoop]: Abstraction has 16689 states and 21831 transitions. [2020-12-22 15:53:26,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:26,222 INFO L276 IsEmpty]: Start isEmpty. Operand 16689 states and 21831 transitions. [2020-12-22 15:53:26,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-12-22 15:53:26,236 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:26,237 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 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 15:53:26,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:53:26,237 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:26,238 INFO L82 PathProgramCache]: Analyzing trace with hash 900848245, now seen corresponding path program 1 times [2020-12-22 15:53:26,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:26,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61711106] [2020-12-22 15:53:26,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:26,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 15:53:26,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61711106] [2020-12-22 15:53:26,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:26,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:26,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995327523] [2020-12-22 15:53:26,552 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:26,552 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:26,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:26,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:26,554 INFO L87 Difference]: Start difference. First operand 16689 states and 21831 transitions. Second operand 3 states. [2020-12-22 15:53:27,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:27,854 INFO L93 Difference]: Finished difference Result 40125 states and 52672 transitions. [2020-12-22 15:53:27,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:27,855 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 184 [2020-12-22 15:53:27,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:27,915 INFO L225 Difference]: With dead ends: 40125 [2020-12-22 15:53:27,915 INFO L226 Difference]: Without dead ends: 23845 [2020-12-22 15:53:27,944 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 15:53:27,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23845 states. [2020-12-22 15:53:29,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23845 to 23819. [2020-12-22 15:53:29,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23819 states. [2020-12-22 15:53:29,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23819 states to 23819 states and 31211 transitions. [2020-12-22 15:53:29,074 INFO L78 Accepts]: Start accepts. Automaton has 23819 states and 31211 transitions. Word has length 184 [2020-12-22 15:53:29,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:29,075 INFO L481 AbstractCegarLoop]: Abstraction has 23819 states and 31211 transitions. [2020-12-22 15:53:29,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:29,075 INFO L276 IsEmpty]: Start isEmpty. Operand 23819 states and 31211 transitions. [2020-12-22 15:53:29,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-12-22 15:53:29,086 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:29,086 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 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 15:53:29,087 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:53:29,087 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:29,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:29,088 INFO L82 PathProgramCache]: Analyzing trace with hash -835939527, now seen corresponding path program 1 times [2020-12-22 15:53:29,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:29,088 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27467099] [2020-12-22 15:53:29,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 15:53:29,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27467099] [2020-12-22 15:53:29,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:29,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:29,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027947437] [2020-12-22 15:53:29,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:29,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:29,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:29,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:29,312 INFO L87 Difference]: Start difference. First operand 23819 states and 31211 transitions. Second operand 3 states. [2020-12-22 15:53:30,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:30,960 INFO L93 Difference]: Finished difference Result 57585 states and 75715 transitions. [2020-12-22 15:53:30,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:30,960 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 185 [2020-12-22 15:53:30,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:31,030 INFO L225 Difference]: With dead ends: 57585 [2020-12-22 15:53:31,030 INFO L226 Difference]: Without dead ends: 34175 [2020-12-22 15:53:31,063 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 15:53:31,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34175 states. [2020-12-22 15:53:32,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34175 to 34145. [2020-12-22 15:53:32,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34145 states. [2020-12-22 15:53:32,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34145 states to 34145 states and 44816 transitions. [2020-12-22 15:53:32,357 INFO L78 Accepts]: Start accepts. Automaton has 34145 states and 44816 transitions. Word has length 185 [2020-12-22 15:53:32,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:32,357 INFO L481 AbstractCegarLoop]: Abstraction has 34145 states and 44816 transitions. [2020-12-22 15:53:32,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:32,358 INFO L276 IsEmpty]: Start isEmpty. Operand 34145 states and 44816 transitions. [2020-12-22 15:53:32,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-12-22 15:53:32,366 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:32,366 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:32,367 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:53:32,367 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:32,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:32,368 INFO L82 PathProgramCache]: Analyzing trace with hash 349253926, now seen corresponding path program 1 times [2020-12-22 15:53:32,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:32,368 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005545100] [2020-12-22 15:53:32,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:32,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:32,584 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-12-22 15:53:32,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005545100] [2020-12-22 15:53:32,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:32,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:32,587 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50852220] [2020-12-22 15:53:32,587 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:32,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:32,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:32,588 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:32,589 INFO L87 Difference]: Start difference. First operand 34145 states and 44816 transitions. Second operand 3 states. [2020-12-22 15:53:34,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:34,312 INFO L93 Difference]: Finished difference Result 76915 states and 100976 transitions. [2020-12-22 15:53:34,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:34,313 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 186 [2020-12-22 15:53:34,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:34,406 INFO L225 Difference]: With dead ends: 76915 [2020-12-22 15:53:34,407 INFO L226 Difference]: Without dead ends: 43179 [2020-12-22 15:53:34,448 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 15:53:34,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43179 states. [2020-12-22 15:53:35,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43179 to 43163. [2020-12-22 15:53:35,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43163 states. [2020-12-22 15:53:35,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43163 states to 43163 states and 56399 transitions. [2020-12-22 15:53:35,949 INFO L78 Accepts]: Start accepts. Automaton has 43163 states and 56399 transitions. Word has length 186 [2020-12-22 15:53:35,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:35,949 INFO L481 AbstractCegarLoop]: Abstraction has 43163 states and 56399 transitions. [2020-12-22 15:53:35,949 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:35,949 INFO L276 IsEmpty]: Start isEmpty. Operand 43163 states and 56399 transitions. [2020-12-22 15:53:35,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 15:53:35,962 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:35,962 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:35,962 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:53:35,963 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:35,963 INFO L82 PathProgramCache]: Analyzing trace with hash -665696704, now seen corresponding path program 1 times [2020-12-22 15:53:35,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:35,964 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693782532] [2020-12-22 15:53:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:36,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:53:36,162 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693782532] [2020-12-22 15:53:36,162 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:36,162 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:36,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440579905] [2020-12-22 15:53:36,163 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:36,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:36,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:36,164 INFO L87 Difference]: Start difference. First operand 43163 states and 56399 transitions. Second operand 3 states. [2020-12-22 15:53:38,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:38,172 INFO L93 Difference]: Finished difference Result 98498 states and 128943 transitions. [2020-12-22 15:53:38,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:38,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 15:53:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:38,262 INFO L225 Difference]: With dead ends: 98498 [2020-12-22 15:53:38,262 INFO L226 Difference]: Without dead ends: 55540 [2020-12-22 15:53:38,312 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 15:53:38,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55540 states. [2020-12-22 15:53:40,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55540 to 55514. [2020-12-22 15:53:40,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55514 states. [2020-12-22 15:53:40,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55514 states to 55514 states and 72616 transitions. [2020-12-22 15:53:40,209 INFO L78 Accepts]: Start accepts. Automaton has 55514 states and 72616 transitions. Word has length 214 [2020-12-22 15:53:40,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:40,209 INFO L481 AbstractCegarLoop]: Abstraction has 55514 states and 72616 transitions. [2020-12-22 15:53:40,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:40,209 INFO L276 IsEmpty]: Start isEmpty. Operand 55514 states and 72616 transitions. [2020-12-22 15:53:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-12-22 15:53:40,228 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:40,228 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:40,228 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 15:53:40,229 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:40,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:40,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1579882750, now seen corresponding path program 1 times [2020-12-22 15:53:40,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:40,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608241879] [2020-12-22 15:53:40,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:40,606 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:53:40,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608241879] [2020-12-22 15:53:40,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:40,606 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:40,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180720995] [2020-12-22 15:53:40,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:40,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:40,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:40,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:40,608 INFO L87 Difference]: Start difference. First operand 55514 states and 72616 transitions. Second operand 3 states. [2020-12-22 15:53:42,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:42,982 INFO L93 Difference]: Finished difference Result 123281 states and 161539 transitions. [2020-12-22 15:53:42,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:42,983 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 214 [2020-12-22 15:53:42,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:43,082 INFO L225 Difference]: With dead ends: 123281 [2020-12-22 15:53:43,082 INFO L226 Difference]: Without dead ends: 68176 [2020-12-22 15:53:43,143 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 15:53:43,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68176 states. [2020-12-22 15:53:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68176 to 68150. [2020-12-22 15:53:45,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68150 states. [2020-12-22 15:53:45,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68150 states to 68150 states and 89185 transitions. [2020-12-22 15:53:45,298 INFO L78 Accepts]: Start accepts. Automaton has 68150 states and 89185 transitions. Word has length 214 [2020-12-22 15:53:45,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:45,298 INFO L481 AbstractCegarLoop]: Abstraction has 68150 states and 89185 transitions. [2020-12-22 15:53:45,298 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:45,298 INFO L276 IsEmpty]: Start isEmpty. Operand 68150 states and 89185 transitions. [2020-12-22 15:53:45,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-12-22 15:53:45,313 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:45,314 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:45,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 15:53:45,314 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:45,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:45,315 INFO L82 PathProgramCache]: Analyzing trace with hash -1187720883, now seen corresponding path program 1 times [2020-12-22 15:53:45,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:45,315 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35302367] [2020-12-22 15:53:45,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:45,502 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:53:45,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35302367] [2020-12-22 15:53:45,505 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:45,505 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:45,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704519601] [2020-12-22 15:53:45,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:45,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:45,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:45,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:45,507 INFO L87 Difference]: Start difference. First operand 68150 states and 89185 transitions. Second operand 3 states. [2020-12-22 15:53:48,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:48,093 INFO L93 Difference]: Finished difference Result 149614 states and 195776 transitions. [2020-12-22 15:53:48,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:48,094 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-12-22 15:53:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:48,391 INFO L225 Difference]: With dead ends: 149614 [2020-12-22 15:53:48,392 INFO L226 Difference]: Without dead ends: 81473 [2020-12-22 15:53:48,454 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 15:53:48,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81473 states. [2020-12-22 15:53:50,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81473 to 81457. [2020-12-22 15:53:50,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81457 states. [2020-12-22 15:53:51,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81457 states to 81457 states and 106314 transitions. [2020-12-22 15:53:51,023 INFO L78 Accepts]: Start accepts. Automaton has 81457 states and 106314 transitions. Word has length 217 [2020-12-22 15:53:51,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:51,023 INFO L481 AbstractCegarLoop]: Abstraction has 81457 states and 106314 transitions. [2020-12-22 15:53:51,023 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:51,023 INFO L276 IsEmpty]: Start isEmpty. Operand 81457 states and 106314 transitions. [2020-12-22 15:53:51,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-12-22 15:53:51,036 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:51,036 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:51,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 15:53:51,037 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:51,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:51,037 INFO L82 PathProgramCache]: Analyzing trace with hash 740551819, now seen corresponding path program 1 times [2020-12-22 15:53:51,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:51,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084814676] [2020-12-22 15:53:51,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:51,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:51,274 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:53:51,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084814676] [2020-12-22 15:53:51,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:51,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:51,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699523047] [2020-12-22 15:53:51,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:51,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:51,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:51,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:51,279 INFO L87 Difference]: Start difference. First operand 81457 states and 106314 transitions. Second operand 3 states. [2020-12-22 15:53:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:53:54,578 INFO L93 Difference]: Finished difference Result 176363 states and 230304 transitions. [2020-12-22 15:53:54,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:53:54,579 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-12-22 15:53:54,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:53:54,893 INFO L225 Difference]: With dead ends: 176363 [2020-12-22 15:53:54,893 INFO L226 Difference]: Without dead ends: 95315 [2020-12-22 15:53:54,964 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 15:53:55,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95315 states. [2020-12-22 15:53:57,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95315 to 95299. [2020-12-22 15:53:57,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95299 states. [2020-12-22 15:53:57,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95299 states to 95299 states and 124113 transitions. [2020-12-22 15:53:57,965 INFO L78 Accepts]: Start accepts. Automaton has 95299 states and 124113 transitions. Word has length 217 [2020-12-22 15:53:57,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:53:57,966 INFO L481 AbstractCegarLoop]: Abstraction has 95299 states and 124113 transitions. [2020-12-22 15:53:57,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:53:57,966 INFO L276 IsEmpty]: Start isEmpty. Operand 95299 states and 124113 transitions. [2020-12-22 15:53:57,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-12-22 15:53:57,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:53:57,977 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:53:57,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 15:53:57,977 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:53:57,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:53:57,978 INFO L82 PathProgramCache]: Analyzing trace with hash 2125419923, now seen corresponding path program 1 times [2020-12-22 15:53:57,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:53:57,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255720694] [2020-12-22 15:53:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:53:58,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:53:58,374 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:53:58,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255720694] [2020-12-22 15:53:58,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:53:58,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:53:58,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793163629] [2020-12-22 15:53:58,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:53:58,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:53:58,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:53:58,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:53:58,377 INFO L87 Difference]: Start difference. First operand 95299 states and 124113 transitions. Second operand 3 states. [2020-12-22 15:54:02,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:54:02,288 INFO L93 Difference]: Finished difference Result 217734 states and 284159 transitions. [2020-12-22 15:54:02,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:54:02,288 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-12-22 15:54:02,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:54:02,516 INFO L225 Difference]: With dead ends: 217734 [2020-12-22 15:54:02,516 INFO L226 Difference]: Without dead ends: 122060 [2020-12-22 15:54:02,614 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 15:54:02,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122060 states. [2020-12-22 15:54:06,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122060 to 122030. [2020-12-22 15:54:06,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122030 states. [2020-12-22 15:54:06,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122030 states to 122030 states and 159092 transitions. [2020-12-22 15:54:06,486 INFO L78 Accepts]: Start accepts. Automaton has 122030 states and 159092 transitions. Word has length 217 [2020-12-22 15:54:06,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:54:06,487 INFO L481 AbstractCegarLoop]: Abstraction has 122030 states and 159092 transitions. [2020-12-22 15:54:06,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:54:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 122030 states and 159092 transitions. [2020-12-22 15:54:06,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-12-22 15:54:06,502 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:54:06,502 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:54:06,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 15:54:06,503 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:54:06,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:54:06,503 INFO L82 PathProgramCache]: Analyzing trace with hash -1276061035, now seen corresponding path program 1 times [2020-12-22 15:54:06,503 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:54:06,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145052297] [2020-12-22 15:54:06,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:54:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:54:06,701 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-22 15:54:06,702 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145052297] [2020-12-22 15:54:06,702 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:54:06,702 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:54:06,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764016766] [2020-12-22 15:54:06,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:54:06,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:54:06,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:54:06,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:54:06,709 INFO L87 Difference]: Start difference. First operand 122030 states and 159092 transitions. Second operand 3 states. [2020-12-22 15:54:11,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:54:11,720 INFO L93 Difference]: Finished difference Result 271421 states and 354567 transitions. [2020-12-22 15:54:11,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:54:11,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 217 [2020-12-22 15:54:11,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:54:12,168 INFO L225 Difference]: With dead ends: 271421 [2020-12-22 15:54:12,168 INFO L226 Difference]: Without dead ends: 149800 [2020-12-22 15:54:12,289 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 15:54:12,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149800 states. [2020-12-22 15:54:16,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149800 to 149770. [2020-12-22 15:54:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149770 states. [2020-12-22 15:54:16,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149770 states to 149770 states and 195352 transitions. [2020-12-22 15:54:16,910 INFO L78 Accepts]: Start accepts. Automaton has 149770 states and 195352 transitions. Word has length 217 [2020-12-22 15:54:16,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:54:16,911 INFO L481 AbstractCegarLoop]: Abstraction has 149770 states and 195352 transitions. [2020-12-22 15:54:16,911 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:54:16,911 INFO L276 IsEmpty]: Start isEmpty. Operand 149770 states and 195352 transitions. [2020-12-22 15:54:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-12-22 15:54:16,935 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:54:16,935 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:54:16,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 15:54:16,936 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:54:16,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:54:16,936 INFO L82 PathProgramCache]: Analyzing trace with hash -33101809, now seen corresponding path program 1 times [2020-12-22 15:54:16,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:54:16,937 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680813778] [2020-12-22 15:54:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:54:17,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:54:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-22 15:54:17,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680813778] [2020-12-22 15:54:17,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:54:17,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:54:17,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272367586] [2020-12-22 15:54:17,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:54:17,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:54:17,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:54:17,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:54:17,151 INFO L87 Difference]: Start difference. First operand 149770 states and 195352 transitions. Second operand 3 states. [2020-12-22 15:54:22,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:54:22,740 INFO L93 Difference]: Finished difference Result 326447 states and 426378 transitions. [2020-12-22 15:54:22,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:54:22,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-12-22 15:54:22,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:54:23,106 INFO L225 Difference]: With dead ends: 326447 [2020-12-22 15:54:23,106 INFO L226 Difference]: Without dead ends: 177086 [2020-12-22 15:54:23,284 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 15:54:23,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177086 states. [2020-12-22 15:54:28,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177086 to 177060. [2020-12-22 15:54:28,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177060 states. [2020-12-22 15:54:29,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177060 states to 177060 states and 231057 transitions. [2020-12-22 15:54:29,342 INFO L78 Accepts]: Start accepts. Automaton has 177060 states and 231057 transitions. Word has length 236 [2020-12-22 15:54:29,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:54:29,343 INFO L481 AbstractCegarLoop]: Abstraction has 177060 states and 231057 transitions. [2020-12-22 15:54:29,343 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:54:29,343 INFO L276 IsEmpty]: Start isEmpty. Operand 177060 states and 231057 transitions. [2020-12-22 15:54:29,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-12-22 15:54:29,371 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:54:29,372 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:54:29,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 15:54:29,385 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:54:29,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:54:29,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2082489651, now seen corresponding path program 1 times [2020-12-22 15:54:29,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:54:29,386 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238568008] [2020-12-22 15:54:29,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:54:29,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:54:29,629 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-12-22 15:54:29,630 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238568008] [2020-12-22 15:54:29,630 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:54:29,630 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:54:29,631 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405662029] [2020-12-22 15:54:29,631 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:54:29,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:54:29,632 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:54:29,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:54:29,632 INFO L87 Difference]: Start difference. First operand 177060 states and 231057 transitions. Second operand 3 states. [2020-12-22 15:54:36,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:54:36,147 INFO L93 Difference]: Finished difference Result 381102 states and 497938 transitions. [2020-12-22 15:54:36,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:54:36,147 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 236 [2020-12-22 15:54:36,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:54:36,807 INFO L225 Difference]: With dead ends: 381102 [2020-12-22 15:54:36,807 INFO L226 Difference]: Without dead ends: 204451 [2020-12-22 15:54:37,145 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 15:54:37,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204451 states. [2020-12-22 15:54:44,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204451 to 204425. [2020-12-22 15:54:44,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204425 states. [2020-12-22 15:54:45,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204425 states to 204425 states and 266837 transitions. [2020-12-22 15:54:45,227 INFO L78 Accepts]: Start accepts. Automaton has 204425 states and 266837 transitions. Word has length 236 [2020-12-22 15:54:45,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:54:45,228 INFO L481 AbstractCegarLoop]: Abstraction has 204425 states and 266837 transitions. [2020-12-22 15:54:45,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:54:45,228 INFO L276 IsEmpty]: Start isEmpty. Operand 204425 states and 266837 transitions. [2020-12-22 15:54:45,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-12-22 15:54:45,258 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:54:45,258 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:54:45,259 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 15:54:45,259 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:54:45,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:54:45,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1519201230, now seen corresponding path program 1 times [2020-12-22 15:54:45,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:54:45,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295615599] [2020-12-22 15:54:45,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:54:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:54:45,469 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-22 15:54:45,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295615599] [2020-12-22 15:54:45,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:54:45,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:54:45,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691482257] [2020-12-22 15:54:45,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:54:45,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:54:45,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:54:45,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:54:45,471 INFO L87 Difference]: Start difference. First operand 204425 states and 266837 transitions. Second operand 3 states. [2020-12-22 15:54:52,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:54:52,698 INFO L93 Difference]: Finished difference Result 437015 states and 570648 transitions. [2020-12-22 15:54:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:54:52,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-12-22 15:54:52,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:54:53,170 INFO L225 Difference]: With dead ends: 437015 [2020-12-22 15:54:53,170 INFO L226 Difference]: Without dead ends: 232999 [2020-12-22 15:54:53,419 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 15:54:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232999 states. [2020-12-22 15:55:00,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232999 to 232983. [2020-12-22 15:55:00,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232983 states. [2020-12-22 15:55:00,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232983 states to 232983 states and 303666 transitions. [2020-12-22 15:55:00,852 INFO L78 Accepts]: Start accepts. Automaton has 232983 states and 303666 transitions. Word has length 240 [2020-12-22 15:55:00,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:55:00,853 INFO L481 AbstractCegarLoop]: Abstraction has 232983 states and 303666 transitions. [2020-12-22 15:55:00,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:55:00,853 INFO L276 IsEmpty]: Start isEmpty. Operand 232983 states and 303666 transitions. [2020-12-22 15:55:00,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-12-22 15:55:00,889 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:55:00,889 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:55:00,889 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 15:55:00,889 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:55:00,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:55:00,890 INFO L82 PathProgramCache]: Analyzing trace with hash -847493364, now seen corresponding path program 1 times [2020-12-22 15:55:00,890 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:55:00,890 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203009916] [2020-12-22 15:55:00,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:55:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:55:01,461 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-12-22 15:55:01,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203009916] [2020-12-22 15:55:01,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:55:01,461 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:55:01,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787598974] [2020-12-22 15:55:01,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:55:01,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:55:01,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:55:01,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:55:01,464 INFO L87 Difference]: Start difference. First operand 232983 states and 303666 transitions. Second operand 3 states. [2020-12-22 15:55:09,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:55:09,842 INFO L93 Difference]: Finished difference Result 494236 states and 644516 transitions. [2020-12-22 15:55:09,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:55:09,842 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 240 [2020-12-22 15:55:09,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:55:10,393 INFO L225 Difference]: With dead ends: 494236 [2020-12-22 15:55:10,393 INFO L226 Difference]: Without dead ends: 261662 [2020-12-22 15:55:10,695 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 15:55:10,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261662 states. [2020-12-22 15:55:18,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261662 to 261646. [2020-12-22 15:55:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261646 states. [2020-12-22 15:55:19,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261646 states to 261646 states and 340600 transitions. [2020-12-22 15:55:19,362 INFO L78 Accepts]: Start accepts. Automaton has 261646 states and 340600 transitions. Word has length 240 [2020-12-22 15:55:19,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:55:19,362 INFO L481 AbstractCegarLoop]: Abstraction has 261646 states and 340600 transitions. [2020-12-22 15:55:19,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:55:19,362 INFO L276 IsEmpty]: Start isEmpty. Operand 261646 states and 340600 transitions. [2020-12-22 15:55:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 15:55:19,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:55:19,396 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:55:19,397 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 15:55:19,397 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:55:19,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:55:19,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2013938007, now seen corresponding path program 1 times [2020-12-22 15:55:19,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:55:19,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487732144] [2020-12-22 15:55:19,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:55:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:55:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-22 15:55:19,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487732144] [2020-12-22 15:55:19,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:55:19,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:55:19,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4167217] [2020-12-22 15:55:19,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:55:19,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:55:19,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:55:19,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:55:19,607 INFO L87 Difference]: Start difference. First operand 261646 states and 340600 transitions. Second operand 3 states. [2020-12-22 15:55:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:55:31,500 INFO L93 Difference]: Finished difference Result 570387 states and 743611 transitions. [2020-12-22 15:55:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:55:31,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-12-22 15:55:31,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:55:32,208 INFO L225 Difference]: With dead ends: 570387 [2020-12-22 15:55:32,208 INFO L226 Difference]: Without dead ends: 309150 [2020-12-22 15:55:32,694 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 15:55:33,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309150 states. [2020-12-22 15:55:42,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309150 to 309120. [2020-12-22 15:55:42,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309120 states. [2020-12-22 15:55:43,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309120 states to 309120 states and 402606 transitions. [2020-12-22 15:55:43,146 INFO L78 Accepts]: Start accepts. Automaton has 309120 states and 402606 transitions. Word has length 241 [2020-12-22 15:55:43,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:55:43,147 INFO L481 AbstractCegarLoop]: Abstraction has 309120 states and 402606 transitions. [2020-12-22 15:55:43,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:55:43,147 INFO L276 IsEmpty]: Start isEmpty. Operand 309120 states and 402606 transitions. [2020-12-22 15:55:43,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-12-22 15:55:43,173 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:55:43,173 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:55:43,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 15:55:43,173 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:55:43,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:55:43,174 INFO L82 PathProgramCache]: Analyzing trace with hash -1120451669, now seen corresponding path program 1 times [2020-12-22 15:55:43,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:55:43,174 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340381018] [2020-12-22 15:55:43,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:55:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:55:43,373 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-12-22 15:55:43,374 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340381018] [2020-12-22 15:55:43,374 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:55:43,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:55:43,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464089264] [2020-12-22 15:55:43,375 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:55:43,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:55:43,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:55:43,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:55:43,375 INFO L87 Difference]: Start difference. First operand 309120 states and 402606 transitions. Second operand 3 states. [2020-12-22 15:55:54,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:55:54,927 INFO L93 Difference]: Finished difference Result 665482 states and 867917 transitions. [2020-12-22 15:55:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:55:54,928 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2020-12-22 15:55:54,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:55:55,743 INFO L225 Difference]: With dead ends: 665482 [2020-12-22 15:55:55,743 INFO L226 Difference]: Without dead ends: 356771 [2020-12-22 15:55:56,139 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 15:55:56,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356771 states. [2020-12-22 15:56:06,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356771 to 356741. [2020-12-22 15:56:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356741 states. [2020-12-22 15:56:08,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356741 states to 356741 states and 464759 transitions. [2020-12-22 15:56:08,005 INFO L78 Accepts]: Start accepts. Automaton has 356741 states and 464759 transitions. Word has length 241 [2020-12-22 15:56:08,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:56:08,006 INFO L481 AbstractCegarLoop]: Abstraction has 356741 states and 464759 transitions. [2020-12-22 15:56:08,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:56:08,006 INFO L276 IsEmpty]: Start isEmpty. Operand 356741 states and 464759 transitions. [2020-12-22 15:56:08,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-12-22 15:56:08,052 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:56:08,052 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:56:08,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-22 15:56:08,053 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:56:08,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:56:08,053 INFO L82 PathProgramCache]: Analyzing trace with hash 463541597, now seen corresponding path program 1 times [2020-12-22 15:56:08,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:56:08,054 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914690626] [2020-12-22 15:56:08,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:56:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:56:08,840 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-12-22 15:56:08,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914690626] [2020-12-22 15:56:08,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:56:08,840 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:56:08,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829878675] [2020-12-22 15:56:08,841 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:56:08,841 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:56:08,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:56:08,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:56:08,842 INFO L87 Difference]: Start difference. First operand 356741 states and 464759 transitions. Second operand 4 states.