/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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 12:26:37,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 12:26:37,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 12:26:37,068 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 12:26:37,069 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 12:26:37,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 12:26:37,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 12:26:37,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 12:26:37,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 12:26:37,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 12:26:37,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 12:26:37,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 12:26:37,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 12:26:37,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 12:26:37,103 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 12:26:37,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 12:26:37,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 12:26:37,110 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 12:26:37,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 12:26:37,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 12:26:37,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 12:26:37,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 12:26:37,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 12:26:37,145 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 12:26:37,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 12:26:37,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 12:26:37,157 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 12:26:37,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 12:26:37,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 12:26:37,161 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 12:26:37,161 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 12:26:37,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 12:26:37,164 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 12:26:37,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 12:26:37,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 12:26:37,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 12:26:37,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 12:26:37,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 12:26:37,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 12:26:37,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 12:26:37,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 12:26:37,170 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 12:26:37,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 12:26:37,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 12:26:37,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 12:26:37,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 12:26:37,227 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 12:26:37,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 12:26:37,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 12:26:37,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 12:26:37,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 12:26:37,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 12:26:37,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 12:26:37,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 12:26:37,230 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 12:26:37,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 12:26:37,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 12:26:37,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 12:26:37,230 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 12:26:37,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 12:26:37,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 12:26:37,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 12:26:37,232 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 12:26:37,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 12:26:37,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 12:26:37,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 12:26:37,232 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 12:26:37,233 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 12:26:37,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 12:26:37,675 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 12:26:37,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 12:26:37,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 12:26:37,680 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 12:26:37,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-12-22 12:26:37,761 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74902b0d4/9fafdb0a3dd645179024bad22c6b35b7/FLAGa1dc6d4c8 [2020-12-22 12:26:38,822 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 12:26:38,822 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-12-22 12:26:38,869 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74902b0d4/9fafdb0a3dd645179024bad22c6b35b7/FLAGa1dc6d4c8 [2020-12-22 12:26:39,281 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74902b0d4/9fafdb0a3dd645179024bad22c6b35b7 [2020-12-22 12:26:39,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 12:26:39,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 12:26:39,294 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 12:26:39,294 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 12:26:39,302 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 12:26:39,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:26:39" (1/1) ... [2020-12-22 12:26:39,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1067f2f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:39, skipping insertion in model container [2020-12-22 12:26:39,307 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 12:26:39" (1/1) ... [2020-12-22 12:26:39,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 12:26:39,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 12:26:40,821 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2020-12-22 12:26:40,857 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:26:40,897 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 12:26:41,259 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-commit-tester/m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i[158757,158770] [2020-12-22 12:26:41,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 12:26:41,640 INFO L208 MainTranslator]: Completed translation [2020-12-22 12:26:41,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41 WrapperNode [2020-12-22 12:26:41,641 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 12:26:41,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 12:26:41,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 12:26:41,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 12:26:41,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:41,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:43,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 12:26:43,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 12:26:43,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 12:26:43,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 12:26:43,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:43,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:44,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:44,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:45,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:46,367 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:46,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (1/1) ... [2020-12-22 12:26:47,079 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 12:26:47,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 12:26:47,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 12:26:47,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 12:26:47,082 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (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 12:26:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 12:26:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 12:26:47,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 12:26:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 12:26:47,205 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2020-12-22 12:26:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2020-12-22 12:26:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2020-12-22 12:26:47,206 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2020-12-22 12:26:47,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 12:26:47,207 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2020-12-22 12:26:47,208 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2020-12-22 12:26:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 12:26:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2020-12-22 12:26:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure kmem_cache_alloc_notrace [2020-12-22 12:26:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 12:26:47,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 12:26:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2020-12-22 12:26:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2020-12-22 12:26:47,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2020-12-22 12:26:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 12:26:47,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 12:26:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 12:26:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2020-12-22 12:26:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2020-12-22 12:26:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 12:26:47,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2020-12-22 12:26:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 12:26:47,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 12:26:47,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 12:26:47,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 12:27:58,164 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 12:27:58,164 INFO L299 CfgBuilder]: Removed 13433 assume(true) statements. [2020-12-22 12:27:58,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:27:58 BoogieIcfgContainer [2020-12-22 12:27:58,178 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 12:27:58,181 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 12:27:58,181 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 12:27:58,187 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 12:27:58,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 12:26:39" (1/3) ... [2020-12-22 12:27:58,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183ad7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:27:58, skipping insertion in model container [2020-12-22 12:27:58,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 12:26:41" (2/3) ... [2020-12-22 12:27:58,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183ad7f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 12:27:58, skipping insertion in model container [2020-12-22 12:27:58,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 12:27:58" (3/3) ... [2020-12-22 12:27:58,191 INFO L111 eAbstractionObserver]: Analyzing ICFG m0_drivers-usb-gadget-g_printer-ko--106_1a--2b9ec6c-1.i [2020-12-22 12:27:58,200 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 12:27:58,212 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2020-12-22 12:27:58,241 INFO L253 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2020-12-22 12:27:58,316 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 12:27:58,317 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 12:27:58,317 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 12:27:58,317 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 12:27:58,317 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 12:27:58,317 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 12:27:58,318 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 12:27:58,318 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 12:27:58,526 INFO L276 IsEmpty]: Start isEmpty. Operand 11338 states. [2020-12-22 12:27:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-22 12:27:58,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:27:58,532 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:27:58,533 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:27:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:27:58,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1003863478, now seen corresponding path program 1 times [2020-12-22 12:27:58,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:27:58,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14541891] [2020-12-22 12:27:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:27:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:27:59,553 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 12:27:59,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14541891] [2020-12-22 12:27:59,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:27:59,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:27:59,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331331364] [2020-12-22 12:27:59,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:27:59,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:27:59,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:27:59,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:27:59,591 INFO L87 Difference]: Start difference. First operand 11338 states. Second operand 3 states. [2020-12-22 12:28:00,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:00,840 INFO L93 Difference]: Finished difference Result 29868 states and 41662 transitions. [2020-12-22 12:28:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:28:00,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-12-22 12:28:00,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:01,017 INFO L225 Difference]: With dead ends: 29868 [2020-12-22 12:28:01,018 INFO L226 Difference]: Without dead ends: 18529 [2020-12-22 12:28:01,102 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 12:28:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18529 states. [2020-12-22 12:28:02,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18529 to 18523. [2020-12-22 12:28:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18523 states. [2020-12-22 12:28:02,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18523 states to 18523 states and 25340 transitions. [2020-12-22 12:28:02,267 INFO L78 Accepts]: Start accepts. Automaton has 18523 states and 25340 transitions. Word has length 8 [2020-12-22 12:28:02,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:02,268 INFO L481 AbstractCegarLoop]: Abstraction has 18523 states and 25340 transitions. [2020-12-22 12:28:02,268 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:28:02,268 INFO L276 IsEmpty]: Start isEmpty. Operand 18523 states and 25340 transitions. [2020-12-22 12:28:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-22 12:28:02,270 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:02,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:28:02,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 12:28:02,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:02,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:02,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1055016019, now seen corresponding path program 1 times [2020-12-22 12:28:02,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:02,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430044022] [2020-12-22 12:28:02,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:02,618 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 12:28:02,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430044022] [2020-12-22 12:28:02,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:02,619 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:28:02,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193342902] [2020-12-22 12:28:02,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:28:02,621 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:02,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:28:02,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:28:02,623 INFO L87 Difference]: Start difference. First operand 18523 states and 25340 transitions. Second operand 3 states. [2020-12-22 12:28:03,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:03,915 INFO L93 Difference]: Finished difference Result 46242 states and 63278 transitions. [2020-12-22 12:28:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:28:03,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-12-22 12:28:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:04,130 INFO L225 Difference]: With dead ends: 46242 [2020-12-22 12:28:04,130 INFO L226 Difference]: Without dead ends: 37009 [2020-12-22 12:28:04,167 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 12:28:04,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37009 states. [2020-12-22 12:28:05,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37009 to 27787. [2020-12-22 12:28:05,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27787 states. [2020-12-22 12:28:05,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27787 states to 27787 states and 38020 transitions. [2020-12-22 12:28:05,394 INFO L78 Accepts]: Start accepts. Automaton has 27787 states and 38020 transitions. Word has length 9 [2020-12-22 12:28:05,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:05,395 INFO L481 AbstractCegarLoop]: Abstraction has 27787 states and 38020 transitions. [2020-12-22 12:28:05,395 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:28:05,396 INFO L276 IsEmpty]: Start isEmpty. Operand 27787 states and 38020 transitions. [2020-12-22 12:28:05,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 12:28:05,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:05,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:28:05,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 12:28:05,400 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:05,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:05,407 INFO L82 PathProgramCache]: Analyzing trace with hash 746265207, now seen corresponding path program 1 times [2020-12-22 12:28:05,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:05,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508126254] [2020-12-22 12:28:05,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:05,756 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 12:28:05,756 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508126254] [2020-12-22 12:28:05,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:05,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 12:28:05,757 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681930198] [2020-12-22 12:28:05,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:28:05,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:05,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:28:05,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:28:05,759 INFO L87 Difference]: Start difference. First operand 27787 states and 38020 transitions. Second operand 3 states. [2020-12-22 12:28:07,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:07,495 INFO L93 Difference]: Finished difference Result 64742 states and 88605 transitions. [2020-12-22 12:28:07,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:28:07,496 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-12-22 12:28:07,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:07,768 INFO L225 Difference]: With dead ends: 64742 [2020-12-22 12:28:07,769 INFO L226 Difference]: Without dead ends: 55505 [2020-12-22 12:28:07,812 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 12:28:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55505 states. [2020-12-22 12:28:09,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55505 to 27844. [2020-12-22 12:28:09,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27844 states. [2020-12-22 12:28:09,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27844 states to 27844 states and 38089 transitions. [2020-12-22 12:28:09,491 INFO L78 Accepts]: Start accepts. Automaton has 27844 states and 38089 transitions. Word has length 18 [2020-12-22 12:28:09,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:09,491 INFO L481 AbstractCegarLoop]: Abstraction has 27844 states and 38089 transitions. [2020-12-22 12:28:09,492 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:28:09,492 INFO L276 IsEmpty]: Start isEmpty. Operand 27844 states and 38089 transitions. [2020-12-22 12:28:09,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-12-22 12:28:09,494 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:09,494 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] [2020-12-22 12:28:09,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 12:28:09,494 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:09,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:09,495 INFO L82 PathProgramCache]: Analyzing trace with hash -2026520274, now seen corresponding path program 1 times [2020-12-22 12:28:09,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:09,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92348766] [2020-12-22 12:28:09,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:10,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:10,370 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 12:28:10,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92348766] [2020-12-22 12:28:10,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:10,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-22 12:28:10,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967352825] [2020-12-22 12:28:10,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 12:28:10,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:10,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 12:28:10,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-12-22 12:28:10,376 INFO L87 Difference]: Start difference. First operand 27844 states and 38089 transitions. Second operand 8 states. [2020-12-22 12:28:16,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:16,507 INFO L93 Difference]: Finished difference Result 92276 states and 125749 transitions. [2020-12-22 12:28:16,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-12-22 12:28:16,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2020-12-22 12:28:16,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:16,857 INFO L225 Difference]: With dead ends: 92276 [2020-12-22 12:28:16,857 INFO L226 Difference]: Without dead ends: 64534 [2020-12-22 12:28:16,946 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2020-12-22 12:28:17,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64534 states. [2020-12-22 12:28:19,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64534 to 27854. [2020-12-22 12:28:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27854 states. [2020-12-22 12:28:19,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27854 states to 27854 states and 38099 transitions. [2020-12-22 12:28:19,228 INFO L78 Accepts]: Start accepts. Automaton has 27854 states and 38099 transitions. Word has length 20 [2020-12-22 12:28:19,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:19,229 INFO L481 AbstractCegarLoop]: Abstraction has 27854 states and 38099 transitions. [2020-12-22 12:28:19,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 12:28:19,230 INFO L276 IsEmpty]: Start isEmpty. Operand 27854 states and 38099 transitions. [2020-12-22 12:28:19,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 12:28:19,232 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:19,233 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] [2020-12-22 12:28:19,233 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 12:28:19,233 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:19,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:19,234 INFO L82 PathProgramCache]: Analyzing trace with hash -672145171, now seen corresponding path program 1 times [2020-12-22 12:28:19,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:19,234 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69023978] [2020-12-22 12:28:19,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:20,072 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 12:28:20,073 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69023978] [2020-12-22 12:28:20,073 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:20,073 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 12:28:20,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179661126] [2020-12-22 12:28:20,074 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 12:28:20,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:20,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 12:28:20,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 12:28:20,076 INFO L87 Difference]: Start difference. First operand 27854 states and 38099 transitions. Second operand 10 states. [2020-12-22 12:28:27,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:27,912 INFO L93 Difference]: Finished difference Result 74742 states and 101693 transitions. [2020-12-22 12:28:27,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-12-22 12:28:27,914 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 23 [2020-12-22 12:28:27,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:28,285 INFO L225 Difference]: With dead ends: 74742 [2020-12-22 12:28:28,285 INFO L226 Difference]: Without dead ends: 65525 [2020-12-22 12:28:28,327 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=356, Invalid=976, Unknown=0, NotChecked=0, Total=1332 [2020-12-22 12:28:28,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65525 states. [2020-12-22 12:28:30,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65525 to 27844. [2020-12-22 12:28:30,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27844 states. [2020-12-22 12:28:30,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27844 states to 27844 states and 38088 transitions. [2020-12-22 12:28:30,517 INFO L78 Accepts]: Start accepts. Automaton has 27844 states and 38088 transitions. Word has length 23 [2020-12-22 12:28:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:30,517 INFO L481 AbstractCegarLoop]: Abstraction has 27844 states and 38088 transitions. [2020-12-22 12:28:30,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 12:28:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 27844 states and 38088 transitions. [2020-12-22 12:28:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 12:28:30,519 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:30,519 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] [2020-12-22 12:28:30,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 12:28:30,519 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:30,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1084968097, now seen corresponding path program 1 times [2020-12-22 12:28:30,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:30,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047609518] [2020-12-22 12:28:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:30,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:31,402 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 12:28:31,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047609518] [2020-12-22 12:28:31,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:31,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-12-22 12:28:31,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203021683] [2020-12-22 12:28:31,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-12-22 12:28:31,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:31,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-12-22 12:28:31,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-12-22 12:28:31,405 INFO L87 Difference]: Start difference. First operand 27844 states and 38088 transitions. Second operand 12 states. [2020-12-22 12:28:35,302 WARN L197 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2020-12-22 12:28:42,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:42,662 INFO L93 Difference]: Finished difference Result 81654 states and 111614 transitions. [2020-12-22 12:28:42,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-22 12:28:42,664 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 25 [2020-12-22 12:28:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:42,910 INFO L225 Difference]: With dead ends: 81654 [2020-12-22 12:28:42,910 INFO L226 Difference]: Without dead ends: 72440 [2020-12-22 12:28:42,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=234, Invalid=578, Unknown=0, NotChecked=0, Total=812 [2020-12-22 12:28:43,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72440 states. [2020-12-22 12:28:45,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72440 to 27842. [2020-12-22 12:28:45,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27842 states. [2020-12-22 12:28:45,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27842 states to 27842 states and 38085 transitions. [2020-12-22 12:28:45,487 INFO L78 Accepts]: Start accepts. Automaton has 27842 states and 38085 transitions. Word has length 25 [2020-12-22 12:28:45,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:45,487 INFO L481 AbstractCegarLoop]: Abstraction has 27842 states and 38085 transitions. [2020-12-22 12:28:45,487 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-12-22 12:28:45,488 INFO L276 IsEmpty]: Start isEmpty. Operand 27842 states and 38085 transitions. [2020-12-22 12:28:45,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 12:28:45,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:45,489 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] [2020-12-22 12:28:45,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 12:28:45,489 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:45,490 INFO L82 PathProgramCache]: Analyzing trace with hash 2060968843, now seen corresponding path program 1 times [2020-12-22 12:28:45,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:45,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17061788] [2020-12-22 12:28:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:45,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:46,147 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 12:28:46,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17061788] [2020-12-22 12:28:46,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:46,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-12-22 12:28:46,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565697369] [2020-12-22 12:28:46,149 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-12-22 12:28:46,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:46,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-12-22 12:28:46,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-12-22 12:28:46,152 INFO L87 Difference]: Start difference. First operand 27842 states and 38085 transitions. Second operand 10 states. [2020-12-22 12:28:50,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:50,443 INFO L93 Difference]: Finished difference Result 64034 states and 87547 transitions. [2020-12-22 12:28:50,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 12:28:50,445 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-12-22 12:28:50,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:50,539 INFO L225 Difference]: With dead ends: 64034 [2020-12-22 12:28:50,540 INFO L226 Difference]: Without dead ends: 36301 [2020-12-22 12:28:50,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2020-12-22 12:28:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36301 states. [2020-12-22 12:28:52,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36301 to 27775. [2020-12-22 12:28:52,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27775 states. [2020-12-22 12:28:52,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27775 states to 27775 states and 38005 transitions. [2020-12-22 12:28:52,904 INFO L78 Accepts]: Start accepts. Automaton has 27775 states and 38005 transitions. Word has length 26 [2020-12-22 12:28:52,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:52,904 INFO L481 AbstractCegarLoop]: Abstraction has 27775 states and 38005 transitions. [2020-12-22 12:28:52,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-12-22 12:28:52,905 INFO L276 IsEmpty]: Start isEmpty. Operand 27775 states and 38005 transitions. [2020-12-22 12:28:52,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 12:28:52,906 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:52,906 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] [2020-12-22 12:28:52,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 12:28:52,906 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:52,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:52,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1106106172, now seen corresponding path program 1 times [2020-12-22 12:28:52,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:52,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973104625] [2020-12-22 12:28:52,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:28:53,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:28:53,112 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 12:28:53,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973104625] [2020-12-22 12:28:53,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:28:53,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:28:53,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993690912] [2020-12-22 12:28:53,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:28:53,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:28:53,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:28:53,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:28:53,115 INFO L87 Difference]: Start difference. First operand 27775 states and 38005 transitions. Second operand 3 states. [2020-12-22 12:28:57,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:28:57,401 INFO L93 Difference]: Finished difference Result 36988 states and 50619 transitions. [2020-12-22 12:28:57,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:28:57,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-12-22 12:28:57,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:28:57,471 INFO L225 Difference]: With dead ends: 36988 [2020-12-22 12:28:57,472 INFO L226 Difference]: Without dead ends: 36970 [2020-12-22 12:28:57,482 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 12:28:57,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36970 states. [2020-12-22 12:28:59,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36970 to 18536. [2020-12-22 12:28:59,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18536 states. [2020-12-22 12:28:59,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18536 states to 18536 states and 25354 transitions. [2020-12-22 12:28:59,064 INFO L78 Accepts]: Start accepts. Automaton has 18536 states and 25354 transitions. Word has length 26 [2020-12-22 12:28:59,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:28:59,065 INFO L481 AbstractCegarLoop]: Abstraction has 18536 states and 25354 transitions. [2020-12-22 12:28:59,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:28:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 18536 states and 25354 transitions. [2020-12-22 12:28:59,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-12-22 12:28:59,066 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:28:59,066 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] [2020-12-22 12:28:59,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 12:28:59,067 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:28:59,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:28:59,068 INFO L82 PathProgramCache]: Analyzing trace with hash -30592161, now seen corresponding path program 1 times [2020-12-22 12:28:59,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:28:59,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889812947] [2020-12-22 12:28:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:00,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:00,405 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 12:29:00,405 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889812947] [2020-12-22 12:29:00,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:00,406 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:29:00,406 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376752249] [2020-12-22 12:29:00,406 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:29:00,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:00,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:29:00,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:29:00,408 INFO L87 Difference]: Start difference. First operand 18536 states and 25354 transitions. Second operand 6 states. [2020-12-22 12:29:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:04,223 INFO L93 Difference]: Finished difference Result 39176 states and 53505 transitions. [2020-12-22 12:29:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 12:29:04,225 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-12-22 12:29:04,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:04,279 INFO L225 Difference]: With dead ends: 39176 [2020-12-22 12:29:04,279 INFO L226 Difference]: Without dead ends: 29956 [2020-12-22 12:29:04,299 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:29:04,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29956 states. [2020-12-22 12:29:05,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29956 to 18526. [2020-12-22 12:29:05,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18526 states. [2020-12-22 12:29:05,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18526 states to 18526 states and 25343 transitions. [2020-12-22 12:29:05,858 INFO L78 Accepts]: Start accepts. Automaton has 18526 states and 25343 transitions. Word has length 35 [2020-12-22 12:29:05,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:05,858 INFO L481 AbstractCegarLoop]: Abstraction has 18526 states and 25343 transitions. [2020-12-22 12:29:05,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:29:05,858 INFO L276 IsEmpty]: Start isEmpty. Operand 18526 states and 25343 transitions. [2020-12-22 12:29:05,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 12:29:05,859 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:05,860 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] [2020-12-22 12:29:05,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 12:29:05,860 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:05,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:05,861 INFO L82 PathProgramCache]: Analyzing trace with hash -101650481, now seen corresponding path program 1 times [2020-12-22 12:29:05,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:05,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60486757] [2020-12-22 12:29:05,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:07,047 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 12:29:07,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60486757] [2020-12-22 12:29:07,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:07,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 12:29:07,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164167320] [2020-12-22 12:29:07,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 12:29:07,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:07,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 12:29:07,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:29:07,050 INFO L87 Difference]: Start difference. First operand 18526 states and 25343 transitions. Second operand 9 states. [2020-12-22 12:29:09,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:09,602 INFO L93 Difference]: Finished difference Result 39820 states and 54469 transitions. [2020-12-22 12:29:09,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 12:29:09,603 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2020-12-22 12:29:09,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:09,641 INFO L225 Difference]: With dead ends: 39820 [2020-12-22 12:29:09,642 INFO L226 Difference]: Without dead ends: 21358 [2020-12-22 12:29:09,669 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2020-12-22 12:29:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21358 states. [2020-12-22 12:29:11,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21358 to 18504. [2020-12-22 12:29:11,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18504 states. [2020-12-22 12:29:11,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18504 states to 18504 states and 25316 transitions. [2020-12-22 12:29:11,349 INFO L78 Accepts]: Start accepts. Automaton has 18504 states and 25316 transitions. Word has length 36 [2020-12-22 12:29:11,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:11,349 INFO L481 AbstractCegarLoop]: Abstraction has 18504 states and 25316 transitions. [2020-12-22 12:29:11,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 12:29:11,349 INFO L276 IsEmpty]: Start isEmpty. Operand 18504 states and 25316 transitions. [2020-12-22 12:29:11,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-12-22 12:29:11,350 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:11,350 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] [2020-12-22 12:29:11,350 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 12:29:11,350 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:11,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:11,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1336139737, now seen corresponding path program 1 times [2020-12-22 12:29:11,351 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:11,351 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072637279] [2020-12-22 12:29:11,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:12,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:12,568 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 12:29:12,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072637279] [2020-12-22 12:29:12,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:12,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-12-22 12:29:12,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474110874] [2020-12-22 12:29:12,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-22 12:29:12,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:12,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-22 12:29:12,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-12-22 12:29:12,571 INFO L87 Difference]: Start difference. First operand 18504 states and 25316 transitions. Second operand 11 states. [2020-12-22 12:29:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:14,814 INFO L93 Difference]: Finished difference Result 27716 states and 37930 transitions. [2020-12-22 12:29:14,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 12:29:14,815 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 36 [2020-12-22 12:29:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:14,868 INFO L225 Difference]: With dead ends: 27716 [2020-12-22 12:29:14,868 INFO L226 Difference]: Without dead ends: 18496 [2020-12-22 12:29:14,890 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=119, Invalid=261, Unknown=0, NotChecked=0, Total=380 [2020-12-22 12:29:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18496 states. [2020-12-22 12:29:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18496 to 18496. [2020-12-22 12:29:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18496 states. [2020-12-22 12:29:16,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18496 states to 18496 states and 25307 transitions. [2020-12-22 12:29:16,687 INFO L78 Accepts]: Start accepts. Automaton has 18496 states and 25307 transitions. Word has length 36 [2020-12-22 12:29:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:16,688 INFO L481 AbstractCegarLoop]: Abstraction has 18496 states and 25307 transitions. [2020-12-22 12:29:16,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-22 12:29:16,688 INFO L276 IsEmpty]: Start isEmpty. Operand 18496 states and 25307 transitions. [2020-12-22 12:29:16,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 12:29:16,689 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:16,689 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] [2020-12-22 12:29:16,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 12:29:16,689 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:16,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:16,690 INFO L82 PathProgramCache]: Analyzing trace with hash 98810864, now seen corresponding path program 1 times [2020-12-22 12:29:16,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:16,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990165384] [2020-12-22 12:29:16,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:17,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:17,830 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 12:29:17,831 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990165384] [2020-12-22 12:29:17,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:17,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 12:29:17,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442949640] [2020-12-22 12:29:17,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 12:29:17,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:17,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 12:29:17,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 12:29:17,833 INFO L87 Difference]: Start difference. First operand 18496 states and 25307 transitions. Second operand 6 states. [2020-12-22 12:29:20,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:20,502 INFO L93 Difference]: Finished difference Result 30575 states and 41813 transitions. [2020-12-22 12:29:20,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 12:29:20,503 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-12-22 12:29:20,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:20,539 INFO L225 Difference]: With dead ends: 30575 [2020-12-22 12:29:20,539 INFO L226 Difference]: Without dead ends: 21350 [2020-12-22 12:29:20,555 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:29:20,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21350 states. [2020-12-22 12:29:22,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21350 to 18493. [2020-12-22 12:29:22,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18493 states. [2020-12-22 12:29:22,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18493 states to 18493 states and 25303 transitions. [2020-12-22 12:29:22,307 INFO L78 Accepts]: Start accepts. Automaton has 18493 states and 25303 transitions. Word has length 39 [2020-12-22 12:29:22,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:22,307 INFO L481 AbstractCegarLoop]: Abstraction has 18493 states and 25303 transitions. [2020-12-22 12:29:22,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 12:29:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 18493 states and 25303 transitions. [2020-12-22 12:29:22,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-12-22 12:29:22,308 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:22,308 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] [2020-12-22 12:29:22,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 12:29:22,309 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:22,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:22,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1192519123, now seen corresponding path program 1 times [2020-12-22 12:29:22,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:22,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864153786] [2020-12-22 12:29:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:22,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:22,510 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 12:29:22,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864153786] [2020-12-22 12:29:22,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:22,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:29:22,512 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376746970] [2020-12-22 12:29:22,512 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:29:22,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:22,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:29:22,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:29:22,513 INFO L87 Difference]: Start difference. First operand 18493 states and 25303 transitions. Second operand 5 states. [2020-12-22 12:29:24,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:24,724 INFO L93 Difference]: Finished difference Result 21345 states and 29182 transitions. [2020-12-22 12:29:24,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 12:29:24,725 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 40 [2020-12-22 12:29:24,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:24,758 INFO L225 Difference]: With dead ends: 21345 [2020-12-22 12:29:24,758 INFO L226 Difference]: Without dead ends: 21342 [2020-12-22 12:29:24,766 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 12:29:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21342 states. [2020-12-22 12:29:26,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21342 to 18487. [2020-12-22 12:29:26,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18487 states. [2020-12-22 12:29:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18487 states to 18487 states and 25296 transitions. [2020-12-22 12:29:26,426 INFO L78 Accepts]: Start accepts. Automaton has 18487 states and 25296 transitions. Word has length 40 [2020-12-22 12:29:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:26,426 INFO L481 AbstractCegarLoop]: Abstraction has 18487 states and 25296 transitions. [2020-12-22 12:29:26,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:29:26,426 INFO L276 IsEmpty]: Start isEmpty. Operand 18487 states and 25296 transitions. [2020-12-22 12:29:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 12:29:26,426 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:26,426 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] [2020-12-22 12:29:26,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 12:29:26,427 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:26,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:26,427 INFO L82 PathProgramCache]: Analyzing trace with hash 1576144664, now seen corresponding path program 1 times [2020-12-22 12:29:26,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:26,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258339115] [2020-12-22 12:29:26,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:26,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:26,610 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 12:29:26,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258339115] [2020-12-22 12:29:26,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:26,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:29:26,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031949757] [2020-12-22 12:29:26,611 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:29:26,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:26,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:29:26,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:29:26,612 INFO L87 Difference]: Start difference. First operand 18487 states and 25296 transitions. Second operand 3 states. [2020-12-22 12:29:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:31,088 INFO L93 Difference]: Finished difference Result 27700 states and 37911 transitions. [2020-12-22 12:29:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:29:31,089 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-22 12:29:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:31,136 INFO L225 Difference]: With dead ends: 27700 [2020-12-22 12:29:31,137 INFO L226 Difference]: Without dead ends: 27689 [2020-12-22 12:29:31,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:29:31,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27689 states. [2020-12-22 12:29:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27689 to 9265. [2020-12-22 12:29:32,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9265 states. [2020-12-22 12:29:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 12670 transitions. [2020-12-22 12:29:32,466 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 12670 transitions. Word has length 42 [2020-12-22 12:29:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:32,466 INFO L481 AbstractCegarLoop]: Abstraction has 9265 states and 12670 transitions. [2020-12-22 12:29:32,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:29:32,467 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 12670 transitions. [2020-12-22 12:29:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 12:29:32,467 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:32,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 12:29:32,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 12:29:32,468 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:32,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:32,469 INFO L82 PathProgramCache]: Analyzing trace with hash -937561105, now seen corresponding path program 1 times [2020-12-22 12:29:32,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:32,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296789590] [2020-12-22 12:29:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:33,481 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 12:29:33,483 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296789590] [2020-12-22 12:29:33,483 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:33,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-22 12:29:33,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105801129] [2020-12-22 12:29:33,484 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-22 12:29:33,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:33,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-22 12:29:33,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-12-22 12:29:33,486 INFO L87 Difference]: Start difference. First operand 9265 states and 12670 transitions. Second operand 9 states. [2020-12-22 12:29:36,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:36,307 INFO L93 Difference]: Finished difference Result 21333 states and 29167 transitions. [2020-12-22 12:29:36,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 12:29:36,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 45 [2020-12-22 12:29:36,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:36,339 INFO L225 Difference]: With dead ends: 21333 [2020-12-22 12:29:36,339 INFO L226 Difference]: Without dead ends: 12120 [2020-12-22 12:29:36,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2020-12-22 12:29:36,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12120 states. [2020-12-22 12:29:37,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12120 to 9265. [2020-12-22 12:29:37,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9265 states. [2020-12-22 12:29:37,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9265 states to 9265 states and 12669 transitions. [2020-12-22 12:29:37,556 INFO L78 Accepts]: Start accepts. Automaton has 9265 states and 12669 transitions. Word has length 45 [2020-12-22 12:29:37,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:37,556 INFO L481 AbstractCegarLoop]: Abstraction has 9265 states and 12669 transitions. [2020-12-22 12:29:37,556 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-22 12:29:37,556 INFO L276 IsEmpty]: Start isEmpty. Operand 9265 states and 12669 transitions. [2020-12-22 12:29:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 12:29:37,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:37,557 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] [2020-12-22 12:29:37,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 12:29:37,557 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:37,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:37,558 INFO L82 PathProgramCache]: Analyzing trace with hash 487558442, now seen corresponding path program 1 times [2020-12-22 12:29:37,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:37,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8534164] [2020-12-22 12:29:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:37,785 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 12:29:37,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8534164] [2020-12-22 12:29:37,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:37,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 12:29:37,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573416114] [2020-12-22 12:29:37,796 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 12:29:37,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:37,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 12:29:37,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 12:29:37,797 INFO L87 Difference]: Start difference. First operand 9265 states and 12669 transitions. Second operand 3 states. [2020-12-22 12:29:42,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:42,192 INFO L93 Difference]: Finished difference Result 18478 states and 25284 transitions. [2020-12-22 12:29:42,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 12:29:42,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-22 12:29:42,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:42,212 INFO L225 Difference]: With dead ends: 18478 [2020-12-22 12:29:42,216 INFO L226 Difference]: Without dead ends: 9259 [2020-12-22 12:29:42,229 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 12:29:42,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9259 states. [2020-12-22 12:29:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9259 to 9259. [2020-12-22 12:29:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9259 states. [2020-12-22 12:29:43,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9259 states to 9259 states and 12662 transitions. [2020-12-22 12:29:43,422 INFO L78 Accepts]: Start accepts. Automaton has 9259 states and 12662 transitions. Word has length 47 [2020-12-22 12:29:43,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:43,422 INFO L481 AbstractCegarLoop]: Abstraction has 9259 states and 12662 transitions. [2020-12-22 12:29:43,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 12:29:43,422 INFO L276 IsEmpty]: Start isEmpty. Operand 9259 states and 12662 transitions. [2020-12-22 12:29:43,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 12:29:43,422 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 12:29:43,423 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] [2020-12-22 12:29:43,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 12:29:43,423 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 12:29:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 12:29:43,423 INFO L82 PathProgramCache]: Analyzing trace with hash 147404565, now seen corresponding path program 1 times [2020-12-22 12:29:43,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 12:29:43,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538207959] [2020-12-22 12:29:43,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 12:29:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 12:29:43,653 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 12:29:43,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538207959] [2020-12-22 12:29:43,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 12:29:43,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 12:29:43,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277785003] [2020-12-22 12:29:43,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 12:29:43,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 12:29:43,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 12:29:43,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 12:29:43,655 INFO L87 Difference]: Start difference. First operand 9259 states and 12662 transitions. Second operand 5 states. [2020-12-22 12:29:43,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 12:29:43,791 INFO L93 Difference]: Finished difference Result 9259 states and 12662 transitions. [2020-12-22 12:29:43,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 12:29:43,791 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-12-22 12:29:43,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 12:29:43,792 INFO L225 Difference]: With dead ends: 9259 [2020-12-22 12:29:43,792 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 12:29:43,804 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 12:29:43,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 12:29:43,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 12:29:43,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 12:29:43,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 12:29:43,805 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 53 [2020-12-22 12:29:43,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 12:29:43,806 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 12:29:43,806 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 12:29:43,806 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 12:29:43,806 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 12:29:43,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 12:29:43,809 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 12:29:45,073 WARN L197 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:45,255 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:45,451 WARN L197 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:45,757 WARN L197 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:45,925 WARN L197 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:46,108 WARN L197 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:46,355 WARN L197 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 90 [2020-12-22 12:29:46,620 WARN L197 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-12-22 12:29:46,881 WARN L197 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:47,130 WARN L197 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 126 [2020-12-22 12:29:47,296 WARN L197 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:47,437 WARN L197 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:47,718 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 126 [2020-12-22 12:29:47,896 WARN L197 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 126 [2020-12-22 12:29:48,145 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 126 [2020-12-22 12:29:48,380 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:48,522 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:48,931 WARN L197 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:49,064 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:49,252 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:49,403 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:49,538 WARN L197 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:50,026 WARN L197 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 90 [2020-12-22 12:29:50,840 WARN L197 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 90 [2020-12-22 12:29:50,985 WARN L197 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:51,188 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:51,312 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:51,433 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:51,573 WARN L197 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:51,842 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 131 [2020-12-22 12:29:52,190 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 90 [2020-12-22 12:29:52,470 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 126