/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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:19:00,944 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:19:00,947 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:19:00,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:19:00,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:19:00,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:19:00,988 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:19:00,990 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:19:00,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:19:00,993 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:19:00,995 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:19:00,996 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:19:00,997 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:19:00,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:19:00,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:19:01,001 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:19:01,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:19:01,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:19:01,019 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:19:01,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:19:01,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:19:01,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:19:01,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:19:01,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:19:01,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:19:01,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:19:01,032 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:19:01,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:19:01,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:19:01,035 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:19:01,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:19:01,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:19:01,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:19:01,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:19:01,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:19:01,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:19:01,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:19:01,042 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:19:01,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:19:01,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:19:01,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:19:01,046 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:19:01,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:19:01,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:19:01,080 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:19:01,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:19:01,081 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:19:01,081 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:19:01,082 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:19:01,082 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:19:01,082 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:19:01,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:19:01,083 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:19:01,083 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:19:01,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:19:01,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:19:01,084 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:19:01,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:19:01,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:19:01,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:19:01,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:19:01,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:19:01,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:19:01,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:19:01,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:19:01,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:19:01,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:19:01,088 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:19:01,465 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:19:01,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:19:01,513 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:19:01,514 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:19:01,515 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:19:01,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2020-12-22 15:19:01,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55da425a0/83f115eb5afb4b6e978f3c394ef0ecf7/FLAGce421b349 [2020-12-22 15:19:02,730 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:19:02,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2020-12-22 15:19:02,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55da425a0/83f115eb5afb4b6e978f3c394ef0ecf7/FLAGce421b349 [2020-12-22 15:19:03,171 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/55da425a0/83f115eb5afb4b6e978f3c394ef0ecf7 [2020-12-22 15:19:03,174 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:19:03,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:19:03,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:19:03,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:19:03,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:19:03,193 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:19:03" (1/1) ... [2020-12-22 15:19:03,195 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f892c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:03, skipping insertion in model container [2020-12-22 15:19:03,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:19:03" (1/1) ... [2020-12-22 15:19:03,205 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:19:03,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:19:05,443 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2020-12-22 15:19:05,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:19:05,541 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:19:06,039 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i[213066,213079] [2020-12-22 15:19:06,050 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:19:06,588 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:19:06,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06 WrapperNode [2020-12-22 15:19:06,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:19:06,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:19:06,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:19:06,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:19:06,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:06,774 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:08,076 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:19:08,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:19:08,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:19:08,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:19:08,094 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:08,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:08,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:08,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:09,900 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:10,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:10,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (1/1) ... [2020-12-22 15:19:10,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:19:10,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:19:10,748 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:19:10,748 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:19:10,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (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 15:19:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure gr_finish_request [2020-12-22 15:19:10,986 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_finish_request [2020-12-22 15:19:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:19:10,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:19:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:19:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dequeue [2020-12-22 15:19:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dequeue [2020-12-22 15:19:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:19:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure gr_ep0_setup [2020-12-22 15:19:10,987 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_ep0_setup [2020-12-22 15:19:10,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:19:10,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:19:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:19:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure gr_dma_advance [2020-12-22 15:19:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure gr_dma_advance [2020-12-22 15:19:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:19:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 15:19:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:19:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:19:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:19:46,593 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:19:46,594 INFO L299 CfgBuilder]: Removed 6866 assume(true) statements. [2020-12-22 15:19:46,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:19:46 BoogieIcfgContainer [2020-12-22 15:19:46,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:19:46,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:19:46,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:19:46,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:19:46,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:19:03" (1/3) ... [2020-12-22 15:19:46,610 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661cb663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:19:46, skipping insertion in model container [2020-12-22 15:19:46,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:19:06" (2/3) ... [2020-12-22 15:19:46,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@661cb663 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:19:46, skipping insertion in model container [2020-12-22 15:19:46,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:19:46" (3/3) ... [2020-12-22 15:19:46,613 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--gadget--udc--gr_udc.ko-entry_point.cil.out.i [2020-12-22 15:19:46,620 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:19:46,629 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 84 error locations. [2020-12-22 15:19:46,654 INFO L253 AbstractCegarLoop]: Starting to check reachability of 84 error locations. [2020-12-22 15:19:46,705 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:19:46,706 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:19:46,706 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:19:46,706 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:19:46,706 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:19:46,706 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:19:46,706 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:19:46,706 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:19:46,814 INFO L276 IsEmpty]: Start isEmpty. Operand 6972 states. [2020-12-22 15:19:46,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 15:19:46,828 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:46,829 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] [2020-12-22 15:19:46,830 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:19:46,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:46,836 INFO L82 PathProgramCache]: Analyzing trace with hash 2097595857, now seen corresponding path program 1 times [2020-12-22 15:19:46,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:46,847 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545905305] [2020-12-22 15:19:46,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:47,784 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 15:19:47,785 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545905305] [2020-12-22 15:19:47,786 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:47,786 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:19:47,787 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265985274] [2020-12-22 15:19:47,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 15:19:47,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:47,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 15:19:47,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:19:47,812 INFO L87 Difference]: Start difference. First operand 6972 states. Second operand 2 states. [2020-12-22 15:19:48,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:48,251 INFO L93 Difference]: Finished difference Result 13940 states and 19527 transitions. [2020-12-22 15:19:48,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 15:19:48,252 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 55 [2020-12-22 15:19:48,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:48,327 INFO L225 Difference]: With dead ends: 13940 [2020-12-22 15:19:48,327 INFO L226 Difference]: Without dead ends: 6918 [2020-12-22 15:19:48,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 15:19:48,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6918 states. [2020-12-22 15:19:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6918 to 6918. [2020-12-22 15:19:48,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6918 states. [2020-12-22 15:19:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6918 states to 6918 states and 9320 transitions. [2020-12-22 15:19:48,895 INFO L78 Accepts]: Start accepts. Automaton has 6918 states and 9320 transitions. Word has length 55 [2020-12-22 15:19:48,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:48,895 INFO L481 AbstractCegarLoop]: Abstraction has 6918 states and 9320 transitions. [2020-12-22 15:19:48,895 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 15:19:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 6918 states and 9320 transitions. [2020-12-22 15:19:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 15:19:48,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:48,909 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] [2020-12-22 15:19:48,909 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:19:48,910 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:19:48,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:48,914 INFO L82 PathProgramCache]: Analyzing trace with hash -2141064503, now seen corresponding path program 1 times [2020-12-22 15:19:48,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:48,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77500172] [2020-12-22 15:19:48,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:49,490 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 15:19:49,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77500172] [2020-12-22 15:19:49,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:49,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:49,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246314689] [2020-12-22 15:19:49,493 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:19:49,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:49,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:19:49,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:19:49,495 INFO L87 Difference]: Start difference. First operand 6918 states and 9320 transitions. Second operand 3 states. [2020-12-22 15:19:50,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:50,331 INFO L93 Difference]: Finished difference Result 20263 states and 27301 transitions. [2020-12-22 15:19:50,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:19:50,333 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-12-22 15:19:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:50,427 INFO L225 Difference]: With dead ends: 20263 [2020-12-22 15:19:50,427 INFO L226 Difference]: Without dead ends: 13385 [2020-12-22 15:19:50,447 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 15:19:50,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13385 states. [2020-12-22 15:19:50,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13385 to 13225. [2020-12-22 15:19:50,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13225 states. [2020-12-22 15:19:50,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13225 states to 13225 states and 17947 transitions. [2020-12-22 15:19:50,946 INFO L78 Accepts]: Start accepts. Automaton has 13225 states and 17947 transitions. Word has length 55 [2020-12-22 15:19:50,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:50,947 INFO L481 AbstractCegarLoop]: Abstraction has 13225 states and 17947 transitions. [2020-12-22 15:19:50,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:19:50,948 INFO L276 IsEmpty]: Start isEmpty. Operand 13225 states and 17947 transitions. [2020-12-22 15:19:50,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-12-22 15:19:50,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:50,967 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 15:19:50,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:19:50,969 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:19:50,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:50,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1284708256, now seen corresponding path program 1 times [2020-12-22 15:19:50,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:50,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999680178] [2020-12-22 15:19:50,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:51,921 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 15:19:51,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999680178] [2020-12-22 15:19:51,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:51,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:51,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284481472] [2020-12-22 15:19:51,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:19:51,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:51,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:19:51,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:19:51,925 INFO L87 Difference]: Start difference. First operand 13225 states and 17947 transitions. Second operand 4 states. [2020-12-22 15:19:53,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:53,451 INFO L93 Difference]: Finished difference Result 44086 states and 59777 transitions. [2020-12-22 15:19:53,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:19:53,452 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2020-12-22 15:19:53,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:53,609 INFO L225 Difference]: With dead ends: 44086 [2020-12-22 15:19:53,610 INFO L226 Difference]: Without dead ends: 30901 [2020-12-22 15:19:53,648 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:19:53,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30901 states. [2020-12-22 15:19:54,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30901 to 23882. [2020-12-22 15:19:54,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23882 states. [2020-12-22 15:19:54,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23882 states to 23882 states and 32543 transitions. [2020-12-22 15:19:54,829 INFO L78 Accepts]: Start accepts. Automaton has 23882 states and 32543 transitions. Word has length 93 [2020-12-22 15:19:54,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:54,830 INFO L481 AbstractCegarLoop]: Abstraction has 23882 states and 32543 transitions. [2020-12-22 15:19:54,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:19:54,830 INFO L276 IsEmpty]: Start isEmpty. Operand 23882 states and 32543 transitions. [2020-12-22 15:19:54,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 15:19:54,847 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:54,847 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] [2020-12-22 15:19:54,847 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:19:54,848 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:19:54,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:54,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1095671254, now seen corresponding path program 1 times [2020-12-22 15:19:54,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:54,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872540562] [2020-12-22 15:19:54,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:55,304 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 15:19:55,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872540562] [2020-12-22 15:19:55,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:55,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:55,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665408260] [2020-12-22 15:19:55,306 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:19:55,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:55,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:19:55,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:19:55,307 INFO L87 Difference]: Start difference. First operand 23882 states and 32543 transitions. Second operand 4 states. [2020-12-22 15:19:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:19:57,409 INFO L93 Difference]: Finished difference Result 63838 states and 86783 transitions. [2020-12-22 15:19:57,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:19:57,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2020-12-22 15:19:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:19:57,586 INFO L225 Difference]: With dead ends: 63838 [2020-12-22 15:19:57,586 INFO L226 Difference]: Without dead ends: 46491 [2020-12-22 15:19:57,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:19:57,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46491 states. [2020-12-22 15:19:59,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46491 to 35355. [2020-12-22 15:19:59,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35355 states. [2020-12-22 15:19:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35355 states to 35355 states and 48231 transitions. [2020-12-22 15:19:59,382 INFO L78 Accepts]: Start accepts. Automaton has 35355 states and 48231 transitions. Word has length 94 [2020-12-22 15:19:59,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:19:59,383 INFO L481 AbstractCegarLoop]: Abstraction has 35355 states and 48231 transitions. [2020-12-22 15:19:59,383 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:19:59,383 INFO L276 IsEmpty]: Start isEmpty. Operand 35355 states and 48231 transitions. [2020-12-22 15:19:59,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 15:19:59,408 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:19:59,410 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] [2020-12-22 15:19:59,410 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:19:59,411 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:19:59,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:19:59,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1774642052, now seen corresponding path program 1 times [2020-12-22 15:19:59,412 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:19:59,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308717378] [2020-12-22 15:19:59,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:19:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:19:59,956 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 15:19:59,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308717378] [2020-12-22 15:19:59,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:19:59,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:19:59,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506080285] [2020-12-22 15:19:59,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:19:59,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:19:59,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:19:59,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:19:59,960 INFO L87 Difference]: Start difference. First operand 35355 states and 48231 transitions. Second operand 4 states. [2020-12-22 15:20:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:02,532 INFO L93 Difference]: Finished difference Result 91769 states and 124923 transitions. [2020-12-22 15:20:02,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:20:02,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-12-22 15:20:02,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:02,770 INFO L225 Difference]: With dead ends: 91769 [2020-12-22 15:20:02,770 INFO L226 Difference]: Without dead ends: 62405 [2020-12-22 15:20:02,861 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62405 states. [2020-12-22 15:20:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62405 to 45846. [2020-12-22 15:20:04,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45846 states. [2020-12-22 15:20:05,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45846 states to 45846 states and 62581 transitions. [2020-12-22 15:20:05,261 INFO L78 Accepts]: Start accepts. Automaton has 45846 states and 62581 transitions. Word has length 95 [2020-12-22 15:20:05,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:05,262 INFO L481 AbstractCegarLoop]: Abstraction has 45846 states and 62581 transitions. [2020-12-22 15:20:05,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 45846 states and 62581 transitions. [2020-12-22 15:20:05,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 15:20:05,280 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:05,281 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] [2020-12-22 15:20:05,281 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:20:05,283 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:05,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:05,284 INFO L82 PathProgramCache]: Analyzing trace with hash -269795952, now seen corresponding path program 1 times [2020-12-22 15:20:05,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:05,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131973289] [2020-12-22 15:20:05,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:05,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:05,812 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 15:20:05,813 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131973289] [2020-12-22 15:20:05,813 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:05,813 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:05,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644454384] [2020-12-22 15:20:05,814 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:20:05,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:05,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:20:05,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:20:05,816 INFO L87 Difference]: Start difference. First operand 45846 states and 62581 transitions. Second operand 4 states. [2020-12-22 15:20:08,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:08,951 INFO L93 Difference]: Finished difference Result 148920 states and 203027 transitions. [2020-12-22 15:20:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:20:08,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-22 15:20:08,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:09,456 INFO L225 Difference]: With dead ends: 148920 [2020-12-22 15:20:09,456 INFO L226 Difference]: Without dead ends: 103114 [2020-12-22 15:20:09,570 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:09,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103114 states. [2020-12-22 15:20:12,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103114 to 82116. [2020-12-22 15:20:12,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82116 states. [2020-12-22 15:20:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82116 states to 82116 states and 112319 transitions. [2020-12-22 15:20:13,179 INFO L78 Accepts]: Start accepts. Automaton has 82116 states and 112319 transitions. Word has length 96 [2020-12-22 15:20:13,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:13,179 INFO L481 AbstractCegarLoop]: Abstraction has 82116 states and 112319 transitions. [2020-12-22 15:20:13,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:13,180 INFO L276 IsEmpty]: Start isEmpty. Operand 82116 states and 112319 transitions. [2020-12-22 15:20:13,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 15:20:13,206 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:13,206 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:20:13,207 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:20:13,207 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:13,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:13,208 INFO L82 PathProgramCache]: Analyzing trace with hash -431674325, now seen corresponding path program 1 times [2020-12-22 15:20:13,208 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:13,209 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078546096] [2020-12-22 15:20:13,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:13,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:14,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:20:14,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078546096] [2020-12-22 15:20:14,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:14,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:20:14,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968152606] [2020-12-22 15:20:14,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:20:14,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:14,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:20:14,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:20:14,054 INFO L87 Difference]: Start difference. First operand 82116 states and 112319 transitions. Second operand 3 states. [2020-12-22 15:20:16,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:16,904 INFO L93 Difference]: Finished difference Result 82116 states and 112319 transitions. [2020-12-22 15:20:16,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:20:16,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 96 [2020-12-22 15:20:16,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:17,388 INFO L225 Difference]: With dead ends: 82116 [2020-12-22 15:20:17,389 INFO L226 Difference]: Without dead ends: 82114 [2020-12-22 15:20:17,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:20:17,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82114 states. [2020-12-22 15:20:20,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82114 to 82114. [2020-12-22 15:20:20,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82114 states. [2020-12-22 15:20:20,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82114 states to 82114 states and 112310 transitions. [2020-12-22 15:20:20,656 INFO L78 Accepts]: Start accepts. Automaton has 82114 states and 112310 transitions. Word has length 96 [2020-12-22 15:20:20,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:20,657 INFO L481 AbstractCegarLoop]: Abstraction has 82114 states and 112310 transitions. [2020-12-22 15:20:20,657 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:20:20,657 INFO L276 IsEmpty]: Start isEmpty. Operand 82114 states and 112310 transitions. [2020-12-22 15:20:20,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-12-22 15:20:20,678 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:20,679 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] [2020-12-22 15:20:20,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:20:20,679 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:20,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:20,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1231550224, now seen corresponding path program 1 times [2020-12-22 15:20:20,681 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:20,681 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097999706] [2020-12-22 15:20:20,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:21,394 WARN L197 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-12-22 15:20:21,424 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 15:20:21,426 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097999706] [2020-12-22 15:20:21,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:21,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:21,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961443917] [2020-12-22 15:20:21,430 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:20:21,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:20:21,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:20:21,435 INFO L87 Difference]: Start difference. First operand 82114 states and 112310 transitions. Second operand 4 states. [2020-12-22 15:20:26,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:26,406 INFO L93 Difference]: Finished difference Result 206710 states and 282272 transitions. [2020-12-22 15:20:26,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 15:20:26,407 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 96 [2020-12-22 15:20:26,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:26,782 INFO L225 Difference]: With dead ends: 206710 [2020-12-22 15:20:26,782 INFO L226 Difference]: Without dead ends: 133108 [2020-12-22 15:20:27,086 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:27,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133108 states. [2020-12-22 15:20:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133108 to 98790. [2020-12-22 15:20:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 98790 states. [2020-12-22 15:20:31,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98790 states to 98790 states and 135154 transitions. [2020-12-22 15:20:31,336 INFO L78 Accepts]: Start accepts. Automaton has 98790 states and 135154 transitions. Word has length 96 [2020-12-22 15:20:31,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:31,337 INFO L481 AbstractCegarLoop]: Abstraction has 98790 states and 135154 transitions. [2020-12-22 15:20:31,337 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 98790 states and 135154 transitions. [2020-12-22 15:20:31,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 15:20:31,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:31,351 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] [2020-12-22 15:20:31,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:20:31,352 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:31,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:31,353 INFO L82 PathProgramCache]: Analyzing trace with hash 649051843, now seen corresponding path program 1 times [2020-12-22 15:20:31,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:31,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552039956] [2020-12-22 15:20:31,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:31,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:31,768 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 15:20:31,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552039956] [2020-12-22 15:20:31,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:31,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:31,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741547829] [2020-12-22 15:20:31,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:20:31,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:31,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:20:31,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:20:31,781 INFO L87 Difference]: Start difference. First operand 98790 states and 135154 transitions. Second operand 4 states. [2020-12-22 15:20:35,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:35,066 INFO L93 Difference]: Finished difference Result 184536 states and 252374 transitions. [2020-12-22 15:20:35,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:20:35,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-22 15:20:35,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:35,423 INFO L225 Difference]: With dead ends: 184536 [2020-12-22 15:20:35,423 INFO L226 Difference]: Without dead ends: 108413 [2020-12-22 15:20:35,549 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:35,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108413 states. [2020-12-22 15:20:38,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108413 to 91118. [2020-12-22 15:20:38,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91118 states. [2020-12-22 15:20:38,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91118 states to 91118 states and 124658 transitions. [2020-12-22 15:20:38,382 INFO L78 Accepts]: Start accepts. Automaton has 91118 states and 124658 transitions. Word has length 97 [2020-12-22 15:20:38,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:38,382 INFO L481 AbstractCegarLoop]: Abstraction has 91118 states and 124658 transitions. [2020-12-22 15:20:38,382 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:38,382 INFO L276 IsEmpty]: Start isEmpty. Operand 91118 states and 124658 transitions. [2020-12-22 15:20:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-12-22 15:20:38,396 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:38,396 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] [2020-12-22 15:20:38,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:20:38,400 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:38,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:38,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1582961227, now seen corresponding path program 1 times [2020-12-22 15:20:38,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:38,402 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856966864] [2020-12-22 15:20:38,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:38,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:38,753 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 15:20:38,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856966864] [2020-12-22 15:20:38,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:38,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:38,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571861339] [2020-12-22 15:20:38,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:20:38,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:38,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:20:38,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:20:38,755 INFO L87 Difference]: Start difference. First operand 91118 states and 124658 transitions. Second operand 4 states. [2020-12-22 15:20:41,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:41,801 INFO L93 Difference]: Finished difference Result 171892 states and 235102 transitions. [2020-12-22 15:20:41,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:20:41,802 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 98 [2020-12-22 15:20:41,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:42,208 INFO L225 Difference]: With dead ends: 171892 [2020-12-22 15:20:42,209 INFO L226 Difference]: Without dead ends: 100721 [2020-12-22 15:20:42,295 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:42,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100721 states. [2020-12-22 15:20:44,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100721 to 83446. [2020-12-22 15:20:44,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83446 states. [2020-12-22 15:20:44,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83446 states to 83446 states and 114162 transitions. [2020-12-22 15:20:44,758 INFO L78 Accepts]: Start accepts. Automaton has 83446 states and 114162 transitions. Word has length 98 [2020-12-22 15:20:44,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:44,759 INFO L481 AbstractCegarLoop]: Abstraction has 83446 states and 114162 transitions. [2020-12-22 15:20:44,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:44,759 INFO L276 IsEmpty]: Start isEmpty. Operand 83446 states and 114162 transitions. [2020-12-22 15:20:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 15:20:44,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:44,769 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] [2020-12-22 15:20:44,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:20:44,770 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:44,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:44,771 INFO L82 PathProgramCache]: Analyzing trace with hash 742026148, now seen corresponding path program 1 times [2020-12-22 15:20:44,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:44,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957288215] [2020-12-22 15:20:44,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:44,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:45,122 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 15:20:45,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957288215] [2020-12-22 15:20:45,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:45,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:45,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343601361] [2020-12-22 15:20:45,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:20:45,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:45,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:20:45,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:20:45,125 INFO L87 Difference]: Start difference. First operand 83446 states and 114162 transitions. Second operand 4 states. [2020-12-22 15:20:48,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:48,654 INFO L93 Difference]: Finished difference Result 159248 states and 217830 transitions. [2020-12-22 15:20:48,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 15:20:48,656 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2020-12-22 15:20:48,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:48,868 INFO L225 Difference]: With dead ends: 159248 [2020-12-22 15:20:48,869 INFO L226 Difference]: Without dead ends: 93029 [2020-12-22 15:20:48,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:20:49,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93029 states. [2020-12-22 15:20:51,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93029 to 75774. [2020-12-22 15:20:51,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75774 states. [2020-12-22 15:20:51,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75774 states to 75774 states and 103666 transitions. [2020-12-22 15:20:51,446 INFO L78 Accepts]: Start accepts. Automaton has 75774 states and 103666 transitions. Word has length 99 [2020-12-22 15:20:51,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:20:51,447 INFO L481 AbstractCegarLoop]: Abstraction has 75774 states and 103666 transitions. [2020-12-22 15:20:51,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:20:51,447 INFO L276 IsEmpty]: Start isEmpty. Operand 75774 states and 103666 transitions. [2020-12-22 15:20:51,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 15:20:51,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:20:51,456 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] [2020-12-22 15:20:51,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:20:51,456 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:20:51,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:20:51,457 INFO L82 PathProgramCache]: Analyzing trace with hash 111418635, now seen corresponding path program 1 times [2020-12-22 15:20:51,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:20:51,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719824472] [2020-12-22 15:20:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:20:51,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:20:51,777 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 15:20:51,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719824472] [2020-12-22 15:20:51,777 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:20:51,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:20:51,778 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702697171] [2020-12-22 15:20:51,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:20:51,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:20:51,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:20:51,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:20:51,779 INFO L87 Difference]: Start difference. First operand 75774 states and 103666 transitions. Second operand 3 states. [2020-12-22 15:20:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:20:56,195 INFO L93 Difference]: Finished difference Result 224002 states and 306559 transitions. [2020-12-22 15:20:56,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:20:56,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-12-22 15:20:56,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:20:56,514 INFO L225 Difference]: With dead ends: 224002 [2020-12-22 15:20:56,515 INFO L226 Difference]: Without dead ends: 148268 [2020-12-22 15:20:56,630 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 15:20:56,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148268 states. [2020-12-22 15:21:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148268 to 148048. [2020-12-22 15:21:01,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148048 states. [2020-12-22 15:21:01,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148048 states to 148048 states and 202765 transitions. [2020-12-22 15:21:01,416 INFO L78 Accepts]: Start accepts. Automaton has 148048 states and 202765 transitions. Word has length 102 [2020-12-22 15:21:01,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:21:01,416 INFO L481 AbstractCegarLoop]: Abstraction has 148048 states and 202765 transitions. [2020-12-22 15:21:01,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:21:01,416 INFO L276 IsEmpty]: Start isEmpty. Operand 148048 states and 202765 transitions. [2020-12-22 15:21:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-22 15:21:01,424 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:21:01,424 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] [2020-12-22 15:21:01,425 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:21:01,425 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:21:01,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:21:01,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1414143464, now seen corresponding path program 1 times [2020-12-22 15:21:01,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:21:01,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963463904] [2020-12-22 15:21:01,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:21:01,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:21:01,769 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 15:21:01,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963463904] [2020-12-22 15:21:01,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:21:01,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:21:01,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993921229] [2020-12-22 15:21:01,772 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:21:01,772 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:21:01,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:21:01,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:21:01,773 INFO L87 Difference]: Start difference. First operand 148048 states and 202765 transitions. Second operand 3 states. [2020-12-22 15:21:10,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:21:10,555 INFO L93 Difference]: Finished difference Result 427824 states and 587643 transitions. [2020-12-22 15:21:10,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:21:10,556 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2020-12-22 15:21:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:21:11,654 INFO L225 Difference]: With dead ends: 427824 [2020-12-22 15:21:11,654 INFO L226 Difference]: Without dead ends: 279816 [2020-12-22 15:21:11,968 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 15:21:12,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279816 states. [2020-12-22 15:21:21,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279816 to 279650. [2020-12-22 15:21:21,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279650 states. [2020-12-22 15:21:22,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279650 states to 279650 states and 384782 transitions. [2020-12-22 15:21:22,852 INFO L78 Accepts]: Start accepts. Automaton has 279650 states and 384782 transitions. Word has length 101 [2020-12-22 15:21:22,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:21:22,853 INFO L481 AbstractCegarLoop]: Abstraction has 279650 states and 384782 transitions. [2020-12-22 15:21:22,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:21:22,853 INFO L276 IsEmpty]: Start isEmpty. Operand 279650 states and 384782 transitions. [2020-12-22 15:21:22,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-12-22 15:21:22,862 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:21:22,862 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:21:22,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:21:22,863 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:21:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:21:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1198403194, now seen corresponding path program 1 times [2020-12-22 15:21:22,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:21:22,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012371480] [2020-12-22 15:21:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:21:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:21:23,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-12-22 15:21:23,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012371480] [2020-12-22 15:21:23,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:21:23,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:21:23,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627483911] [2020-12-22 15:21:23,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:21:23,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:21:23,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:21:23,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:21:23,261 INFO L87 Difference]: Start difference. First operand 279650 states and 384782 transitions. Second operand 5 states. [2020-12-22 15:21:40,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:21:40,202 INFO L93 Difference]: Finished difference Result 776770 states and 1067962 transitions. [2020-12-22 15:21:40,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 15:21:40,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-12-22 15:21:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:21:42,043 INFO L225 Difference]: With dead ends: 776770 [2020-12-22 15:21:42,043 INFO L226 Difference]: Without dead ends: 534168 [2020-12-22 15:21:42,394 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 15:21:42,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534168 states. [2020-12-22 15:21:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534168 to 427966. [2020-12-22 15:21:57,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427966 states. [2020-12-22 15:21:58,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427966 states to 427966 states and 589330 transitions. [2020-12-22 15:21:58,420 INFO L78 Accepts]: Start accepts. Automaton has 427966 states and 589330 transitions. Word has length 102 [2020-12-22 15:21:58,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:21:58,421 INFO L481 AbstractCegarLoop]: Abstraction has 427966 states and 589330 transitions. [2020-12-22 15:21:58,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 15:21:58,421 INFO L276 IsEmpty]: Start isEmpty. Operand 427966 states and 589330 transitions. [2020-12-22 15:21:58,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-12-22 15:21:58,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:21:58,426 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 15:21:58,426 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 15:21:58,427 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr28ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr5ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr7ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr14ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr12ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr2ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr10ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr25ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr8ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr17ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr4ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr19ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr0ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr21ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr23ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr13ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr6ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr20ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr27ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr11ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr29ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr15ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr24ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr9ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr16ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr18ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr26ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr3ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr1ASSERT_VIOLATIONERROR_FUNCTION, gr_ep0_setupErr22ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:21:58,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:21:58,427 INFO L82 PathProgramCache]: Analyzing trace with hash 636111132, now seen corresponding path program 1 times [2020-12-22 15:21:58,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:21:58,427 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633969728] [2020-12-22 15:21:58,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:21:59,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:21:59,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 15:21:59,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633969728] [2020-12-22 15:21:59,411 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:21:59,411 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 15:21:59,412 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218754124] [2020-12-22 15:21:59,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 15:21:59,412 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:21:59,413 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 15:21:59,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 15:21:59,413 INFO L87 Difference]: Start difference. First operand 427966 states and 589330 transitions. Second operand 5 states.