/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:13:12,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:13:12,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:13:12,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:13:12,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:13:12,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:13:12,437 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:13:12,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:13:12,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:13:12,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:13:12,447 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:13:12,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:13:12,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:13:12,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:13:12,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:13:12,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:13:12,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:13:12,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:13:12,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:13:12,464 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:13:12,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:13:12,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:13:12,467 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:13:12,468 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:13:12,474 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:13:12,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:13:12,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:13:12,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:13:12,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:13:12,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:13:12,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:13:12,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:13:12,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:13:12,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:13:12,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:13:12,480 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:13:12,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:13:12,481 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:13:12,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:13:12,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:13:12,482 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:13:12,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:13:12,521 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:13:12,521 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:13:12,521 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:13:12,521 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:13:12,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:13:12,523 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:13:12,523 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:13:12,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:13:12,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:13:12,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:13:12,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:13:12,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:13:12,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:13:12,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:13:12,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:13:12,527 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:13:12,527 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:13:12,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:13:12,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:13:12,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:13:12,764 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:13:12,766 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:13:12,767 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c [2022-01-10 12:13:12,823 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de9fa5e6/e1d055e145644551b41ce98e43f20e0e/FLAGebc378e54 [2022-01-10 12:13:13,388 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:13:13,389 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c [2022-01-10 12:13:13,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de9fa5e6/e1d055e145644551b41ce98e43f20e0e/FLAGebc378e54 [2022-01-10 12:13:13,657 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4de9fa5e6/e1d055e145644551b41ce98e43f20e0e [2022-01-10 12:13:13,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:13:13,662 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:13:13,665 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:13:13,665 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:13:13,669 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:13:13,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:13:13" (1/1) ... [2022-01-10 12:13:13,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7770e2d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:13, skipping insertion in model container [2022-01-10 12:13:13,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:13:13" (1/1) ... [2022-01-10 12:13:13,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:13:13,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:13:14,254 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c[65472,65485] [2022-01-10 12:13:14,266 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:13:14,278 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:13:14,300 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:13:14,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c[65472,65485] [2022-01-10 12:13:14,386 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:13:14,391 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:13:14,462 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product32.cil.c[65472,65485] [2022-01-10 12:13:14,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:13:14,496 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:13:14,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14 WrapperNode [2022-01-10 12:13:14,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:13:14,498 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:13:14,498 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:13:14,498 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:13:14,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,554 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,705 INFO L137 Inliner]: procedures = 136, calls = 237, calls flagged for inlining = 144, calls inlined = 340, statements flattened = 5212 [2022-01-10 12:13:14,706 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:13:14,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:13:14,707 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:13:14,707 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:13:14,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:13:14,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:13:14,885 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:13:14,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:13:14,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (1/1) ... [2022-01-10 12:13:14,893 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:13:14,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:13:14,917 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:13:14,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:13:14,957 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:13:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:13:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:13:14,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:13:14,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:13:15,218 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:13:15,220 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:13:17,406 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:13:17,430 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:13:17,430 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:13:17,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:13:17 BoogieIcfgContainer [2022-01-10 12:13:17,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:13:17,434 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:13:17,434 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:13:17,435 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:13:17,438 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:13:17" (1/1) ... [2022-01-10 12:13:18,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:13:18 BasicIcfg [2022-01-10 12:13:18,053 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:13:18,054 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:13:18,054 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:13:18,057 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:13:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:13:13" (1/4) ... [2022-01-10 12:13:18,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a33bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:13:18, skipping insertion in model container [2022-01-10 12:13:18,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:13:14" (2/4) ... [2022-01-10 12:13:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a33bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:13:18, skipping insertion in model container [2022-01-10 12:13:18,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:13:17" (3/4) ... [2022-01-10 12:13:18,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a33bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:13:18, skipping insertion in model container [2022-01-10 12:13:18,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:13:18" (4/4) ... [2022-01-10 12:13:18,060 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product32.cil.cTransformedIcfg [2022-01-10 12:13:18,065 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:13:18,065 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:13:18,127 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:13:18,134 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:13:18,134 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:13:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand has 1176 states, 1169 states have (on average 1.690333618477331) internal successors, (1976), 1175 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:18,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:13:18,193 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:18,193 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:18,194 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:18,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:18,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1674902865, now seen corresponding path program 1 times [2022-01-10 12:13:18,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:18,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808125785] [2022-01-10 12:13:18,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:18,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:18,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:18,624 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:18,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808125785] [2022-01-10 12:13:18,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808125785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:18,625 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:18,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:13:18,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851666609] [2022-01-10 12:13:18,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:18,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:13:18,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:18,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:13:18,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:13:18,665 INFO L87 Difference]: Start difference. First operand has 1176 states, 1169 states have (on average 1.690333618477331) internal successors, (1976), 1175 states have internal predecessors, (1976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:18,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:18,758 INFO L93 Difference]: Finished difference Result 2043 states and 3405 transitions. [2022-01-10 12:13:18,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:13:18,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 12:13:18,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:18,783 INFO L225 Difference]: With dead ends: 2043 [2022-01-10 12:13:18,783 INFO L226 Difference]: Without dead ends: 986 [2022-01-10 12:13:18,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:13:18,796 INFO L933 BasicCegarLoop]: 1962 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:18,797 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 986 states. [2022-01-10 12:13:18,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 986 to 986. [2022-01-10 12:13:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 980 states have (on average 1.6989795918367347) internal successors, (1665), 985 states have internal predecessors, (1665), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1665 transitions. [2022-01-10 12:13:18,899 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1665 transitions. Word has length 55 [2022-01-10 12:13:18,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:18,899 INFO L470 AbstractCegarLoop]: Abstraction has 986 states and 1665 transitions. [2022-01-10 12:13:18,899 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:18,901 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1665 transitions. [2022-01-10 12:13:18,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:13:18,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:18,904 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:18,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:13:18,905 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:18,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:18,906 INFO L85 PathProgramCache]: Analyzing trace with hash -948894457, now seen corresponding path program 1 times [2022-01-10 12:13:18,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:18,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006375408] [2022-01-10 12:13:18,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:18,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:19,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:19,195 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:19,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006375408] [2022-01-10 12:13:19,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006375408] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:19,195 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:19,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:13:19,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136860645] [2022-01-10 12:13:19,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:19,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:13:19,197 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:19,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:13:19,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:19,198 INFO L87 Difference]: Start difference. First operand 986 states and 1665 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:19,275 INFO L93 Difference]: Finished difference Result 1548 states and 2587 transitions. [2022-01-10 12:13:19,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:13:19,276 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 12:13:19,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:19,281 INFO L225 Difference]: With dead ends: 1548 [2022-01-10 12:13:19,281 INFO L226 Difference]: Without dead ends: 974 [2022-01-10 12:13:19,284 INFO L932 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 [2022-01-10 12:13:19,285 INFO L933 BasicCegarLoop]: 1645 mSDtfsCounter, 680 mSDsluCounter, 900 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:19,285 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [680 Valid, 2545 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:19,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-01-10 12:13:19,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2022-01-10 12:13:19,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.6979381443298969) internal successors, (1647), 973 states have internal predecessors, (1647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1647 transitions. [2022-01-10 12:13:19,320 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1647 transitions. Word has length 56 [2022-01-10 12:13:19,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:19,322 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1647 transitions. [2022-01-10 12:13:19,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,324 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1647 transitions. [2022-01-10 12:13:19,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-10 12:13:19,332 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:19,333 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:19,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:13:19,333 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:19,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:19,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1442367749, now seen corresponding path program 1 times [2022-01-10 12:13:19,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:19,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082911573] [2022-01-10 12:13:19,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:19,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:19,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:19,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082911573] [2022-01-10 12:13:19,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082911573] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:19,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:19,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:13:19,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352465895] [2022-01-10 12:13:19,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:19,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:13:19,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:19,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:13:19,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:19,506 INFO L87 Difference]: Start difference. First operand 974 states and 1647 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:19,627 INFO L93 Difference]: Finished difference Result 1716 states and 2862 transitions. [2022-01-10 12:13:19,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:13:19,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 107 [2022-01-10 12:13:19,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:19,633 INFO L225 Difference]: With dead ends: 1716 [2022-01-10 12:13:19,633 INFO L226 Difference]: Without dead ends: 1203 [2022-01-10 12:13:19,638 INFO L932 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 [2022-01-10 12:13:19,641 INFO L933 BasicCegarLoop]: 1956 mSDtfsCounter, 836 mSDsluCounter, 1156 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 3112 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:19,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [836 Valid, 3112 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-01-10 12:13:19,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 974. [2022-01-10 12:13:19,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.6917525773195876) internal successors, (1641), 973 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1641 transitions. [2022-01-10 12:13:19,672 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1641 transitions. Word has length 107 [2022-01-10 12:13:19,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:19,672 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1641 transitions. [2022-01-10 12:13:19,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,673 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1641 transitions. [2022-01-10 12:13:19,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:13:19,675 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:19,676 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:19,676 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:13:19,676 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:19,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:19,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1653181405, now seen corresponding path program 1 times [2022-01-10 12:13:19,677 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:19,677 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613230916] [2022-01-10 12:13:19,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:19,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:19,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:19,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:19,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:19,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613230916] [2022-01-10 12:13:19,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613230916] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:19,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:19,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:13:19,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755113829] [2022-01-10 12:13:19,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:19,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:13:19,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:19,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:13:19,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:19,944 INFO L87 Difference]: Start difference. First operand 974 states and 1641 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:20,027 INFO L93 Difference]: Finished difference Result 1929 states and 3254 transitions. [2022-01-10 12:13:20,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:13:20,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 12:13:20,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:20,031 INFO L225 Difference]: With dead ends: 1929 [2022-01-10 12:13:20,032 INFO L226 Difference]: Without dead ends: 974 [2022-01-10 12:13:20,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:20,034 INFO L933 BasicCegarLoop]: 1620 mSDtfsCounter, 1616 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 1633 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:20,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1616 Valid, 1633 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:20,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2022-01-10 12:13:20,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 974. [2022-01-10 12:13:20,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.6896907216494845) internal successors, (1639), 973 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1639 transitions. [2022-01-10 12:13:20,068 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1639 transitions. Word has length 108 [2022-01-10 12:13:20,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:20,068 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1639 transitions. [2022-01-10 12:13:20,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,068 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1639 transitions. [2022-01-10 12:13:20,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 12:13:20,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:20,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:20,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:13:20,071 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:20,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:20,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1461478301, now seen corresponding path program 1 times [2022-01-10 12:13:20,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:20,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305837507] [2022-01-10 12:13:20,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:20,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:20,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:20,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [305837507] [2022-01-10 12:13:20,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [305837507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:20,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:20,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:13:20,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345845387] [2022-01-10 12:13:20,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:20,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:20,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:20,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:20,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:20,240 INFO L87 Difference]: Start difference. First operand 974 states and 1639 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:20,623 INFO L93 Difference]: Finished difference Result 4738 states and 7991 transitions. [2022-01-10 12:13:20,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:13:20,623 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-10 12:13:20,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:20,639 INFO L225 Difference]: With dead ends: 4738 [2022-01-10 12:13:20,639 INFO L226 Difference]: Without dead ends: 3788 [2022-01-10 12:13:20,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:13:20,642 INFO L933 BasicCegarLoop]: 3201 mSDtfsCounter, 7978 mSDsluCounter, 4789 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7978 SdHoareTripleChecker+Valid, 7990 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:20,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7978 Valid, 7990 Invalid, 82 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:20,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3788 states. [2022-01-10 12:13:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3788 to 974. [2022-01-10 12:13:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.688659793814433) internal successors, (1638), 973 states have internal predecessors, (1638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1638 transitions. [2022-01-10 12:13:20,720 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1638 transitions. Word has length 110 [2022-01-10 12:13:20,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:20,721 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1638 transitions. [2022-01-10 12:13:20,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,721 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1638 transitions. [2022-01-10 12:13:20,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 12:13:20,723 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:20,723 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:20,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:13:20,723 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:20,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:20,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1510393633, now seen corresponding path program 1 times [2022-01-10 12:13:20,724 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:20,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323652590] [2022-01-10 12:13:20,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:20,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:20,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:20,892 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:20,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323652590] [2022-01-10 12:13:20,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323652590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:20,892 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:20,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:13:20,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891327551] [2022-01-10 12:13:20,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:20,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:13:20,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:20,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:13:20,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:20,894 INFO L87 Difference]: Start difference. First operand 974 states and 1638 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:20,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:20,975 INFO L93 Difference]: Finished difference Result 1933 states and 3254 transitions. [2022-01-10 12:13:20,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:13:20,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-10 12:13:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:20,979 INFO L225 Difference]: With dead ends: 1933 [2022-01-10 12:13:20,979 INFO L226 Difference]: Without dead ends: 988 [2022-01-10 12:13:20,983 INFO L932 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 [2022-01-10 12:13:20,985 INFO L933 BasicCegarLoop]: 1652 mSDtfsCounter, 1617 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1617 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:20,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1617 Valid, 1674 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:20,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2022-01-10 12:13:21,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 974. [2022-01-10 12:13:21,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.6876288659793814) internal successors, (1637), 973 states have internal predecessors, (1637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1637 transitions. [2022-01-10 12:13:21,064 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1637 transitions. Word has length 111 [2022-01-10 12:13:21,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:21,065 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1637 transitions. [2022-01-10 12:13:21,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1637 transitions. [2022-01-10 12:13:21,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 12:13:21,070 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:21,070 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:21,070 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:13:21,071 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:21,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:21,071 INFO L85 PathProgramCache]: Analyzing trace with hash -492890468, now seen corresponding path program 1 times [2022-01-10 12:13:21,071 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:21,071 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180471420] [2022-01-10 12:13:21,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:21,072 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:21,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:21,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180471420] [2022-01-10 12:13:21,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180471420] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:21,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:21,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:13:21,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384455520] [2022-01-10 12:13:21,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:21,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:21,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:21,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:21,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:21,214 INFO L87 Difference]: Start difference. First operand 974 states and 1637 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:21,478 INFO L93 Difference]: Finished difference Result 2856 states and 4811 transitions. [2022-01-10 12:13:21,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:13:21,479 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-01-10 12:13:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:21,487 INFO L225 Difference]: With dead ends: 2856 [2022-01-10 12:13:21,487 INFO L226 Difference]: Without dead ends: 1916 [2022-01-10 12:13:21,489 INFO L932 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 [2022-01-10 12:13:21,490 INFO L933 BasicCegarLoop]: 1646 mSDtfsCounter, 7901 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7901 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:21,490 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7901 Valid, 3306 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2022-01-10 12:13:21,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 974. [2022-01-10 12:13:21,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 974 states, 970 states have (on average 1.6855670103092784) internal successors, (1635), 973 states have internal predecessors, (1635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1635 transitions. [2022-01-10 12:13:21,567 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1635 transitions. Word has length 112 [2022-01-10 12:13:21,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:21,568 INFO L470 AbstractCegarLoop]: Abstraction has 974 states and 1635 transitions. [2022-01-10 12:13:21,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:21,568 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1635 transitions. [2022-01-10 12:13:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 12:13:21,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:21,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:21,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:13:21,571 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:21,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1984735071, now seen corresponding path program 1 times [2022-01-10 12:13:21,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:21,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819218137] [2022-01-10 12:13:21,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:21,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:21,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:21,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:21,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819218137] [2022-01-10 12:13:21,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819218137] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:21,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:21,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:13:21,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970018930] [2022-01-10 12:13:21,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:21,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:13:21,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:21,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:13:21,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:13:21,709 INFO L87 Difference]: Start difference. First operand 974 states and 1635 transitions. Second operand has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:22,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:22,614 INFO L93 Difference]: Finished difference Result 7452 states and 12376 transitions. [2022-01-10 12:13:22,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:13:22,615 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 12:13:22,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:22,646 INFO L225 Difference]: With dead ends: 7452 [2022-01-10 12:13:22,646 INFO L226 Difference]: Without dead ends: 6800 [2022-01-10 12:13:22,652 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:13:22,653 INFO L933 BasicCegarLoop]: 3043 mSDtfsCounter, 13032 mSDsluCounter, 10936 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13032 SdHoareTripleChecker+Valid, 13979 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:22,653 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13032 Valid, 13979 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:13:22,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2022-01-10 12:13:22,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 1691. [2022-01-10 12:13:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1687 states have (on average 1.6882039122703023) internal successors, (2848), 1690 states have internal predecessors, (2848), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:22,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2848 transitions. [2022-01-10 12:13:22,869 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2848 transitions. Word has length 114 [2022-01-10 12:13:22,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:22,869 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2848 transitions. [2022-01-10 12:13:22,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.0) internal successors, (114), 6 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:22,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2848 transitions. [2022-01-10 12:13:22,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:13:22,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:22,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:22,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:13:22,873 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:22,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:22,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1376208944, now seen corresponding path program 1 times [2022-01-10 12:13:22,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:22,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648782245] [2022-01-10 12:13:22,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:22,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:23,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:23,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:23,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648782245] [2022-01-10 12:13:23,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648782245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:23,078 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:23,078 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:13:23,078 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568493568] [2022-01-10 12:13:23,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:23,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:23,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:23,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:23,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:23,084 INFO L87 Difference]: Start difference. First operand 1691 states and 2848 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:23,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:23,371 INFO L93 Difference]: Finished difference Result 3602 states and 5972 transitions. [2022-01-10 12:13:23,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:13:23,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-10 12:13:23,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:23,383 INFO L225 Difference]: With dead ends: 3602 [2022-01-10 12:13:23,383 INFO L226 Difference]: Without dead ends: 2527 [2022-01-10 12:13:23,386 INFO L932 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 [2022-01-10 12:13:23,389 INFO L933 BasicCegarLoop]: 1617 mSDtfsCounter, 5507 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5507 SdHoareTripleChecker+Valid, 3545 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:23,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5507 Valid, 3545 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:23,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2022-01-10 12:13:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 1691. [2022-01-10 12:13:23,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1687 states have (on average 1.6858328393598103) internal successors, (2844), 1690 states have internal predecessors, (2844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:23,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2844 transitions. [2022-01-10 12:13:23,542 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2844 transitions. Word has length 115 [2022-01-10 12:13:23,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:23,543 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2844 transitions. [2022-01-10 12:13:23,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:23,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2844 transitions. [2022-01-10 12:13:23,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:13:23,546 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:23,546 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:23,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:13:23,547 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:23,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:23,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1773093349, now seen corresponding path program 1 times [2022-01-10 12:13:23,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:23,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773185830] [2022-01-10 12:13:23,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:23,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:23,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:23,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:23,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773185830] [2022-01-10 12:13:23,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773185830] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:23,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:23,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:13:23,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105683619] [2022-01-10 12:13:23,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:23,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:23,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:23,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:23,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:23,686 INFO L87 Difference]: Start difference. First operand 1691 states and 2844 transitions. Second operand has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:24,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:24,041 INFO L93 Difference]: Finished difference Result 4950 states and 8361 transitions. [2022-01-10 12:13:24,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:13:24,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-10 12:13:24,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:24,074 INFO L225 Difference]: With dead ends: 4950 [2022-01-10 12:13:24,074 INFO L226 Difference]: Without dead ends: 3296 [2022-01-10 12:13:24,078 INFO L932 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 [2022-01-10 12:13:24,079 INFO L933 BasicCegarLoop]: 3169 mSDtfsCounter, 4836 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 4755 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:24,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4836 Valid, 4755 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2022-01-10 12:13:24,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 1691. [2022-01-10 12:13:24,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1687 states have (on average 1.6846473029045643) internal successors, (2842), 1690 states have internal predecessors, (2842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2842 transitions. [2022-01-10 12:13:24,262 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2842 transitions. Word has length 115 [2022-01-10 12:13:24,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:24,263 INFO L470 AbstractCegarLoop]: Abstraction has 1691 states and 2842 transitions. [2022-01-10 12:13:24,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.0) internal successors, (115), 5 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:24,263 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2842 transitions. [2022-01-10 12:13:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:13:24,267 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:24,267 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:24,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:13:24,267 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:24,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1969884307, now seen corresponding path program 1 times [2022-01-10 12:13:24,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:24,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568208896] [2022-01-10 12:13:24,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:24,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:24,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:24,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:24,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568208896] [2022-01-10 12:13:24,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568208896] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:24,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:24,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:24,430 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845954859] [2022-01-10 12:13:24,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:24,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:24,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:24,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:24,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:24,431 INFO L87 Difference]: Start difference. First operand 1691 states and 2842 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:24,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:24,909 INFO L93 Difference]: Finished difference Result 4801 states and 7996 transitions. [2022-01-10 12:13:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:13:24,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:13:24,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:24,922 INFO L225 Difference]: With dead ends: 4801 [2022-01-10 12:13:24,922 INFO L226 Difference]: Without dead ends: 3988 [2022-01-10 12:13:24,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:24,927 INFO L933 BasicCegarLoop]: 1702 mSDtfsCounter, 3277 mSDsluCounter, 5002 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3277 SdHoareTripleChecker+Valid, 6704 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:24,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3277 Valid, 6704 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:24,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2022-01-10 12:13:25,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3097. [2022-01-10 12:13:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3097 states, 3093 states have (on average 1.6915615906886519) internal successors, (5232), 3096 states have internal predecessors, (5232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3097 states to 3097 states and 5232 transitions. [2022-01-10 12:13:25,262 INFO L78 Accepts]: Start accepts. Automaton has 3097 states and 5232 transitions. Word has length 116 [2022-01-10 12:13:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:25,262 INFO L470 AbstractCegarLoop]: Abstraction has 3097 states and 5232 transitions. [2022-01-10 12:13:25,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 4 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 3097 states and 5232 transitions. [2022-01-10 12:13:25,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:13:25,268 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:25,268 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:25,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:13:25,269 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:25,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:25,269 INFO L85 PathProgramCache]: Analyzing trace with hash -2109725484, now seen corresponding path program 1 times [2022-01-10 12:13:25,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:25,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837335982] [2022-01-10 12:13:25,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:25,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:25,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:25,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:25,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:25,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837335982] [2022-01-10 12:13:25,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837335982] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:25,452 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:25,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:13:25,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189788427] [2022-01-10 12:13:25,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:25,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:13:25,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:25,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:13:25,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:25,454 INFO L87 Difference]: Start difference. First operand 3097 states and 5232 transitions. Second operand has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:28,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:28,188 INFO L93 Difference]: Finished difference Result 15005 states and 24324 transitions. [2022-01-10 12:13:28,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:13:28,189 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 116 [2022-01-10 12:13:28,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:28,234 INFO L225 Difference]: With dead ends: 15005 [2022-01-10 12:13:28,235 INFO L226 Difference]: Without dead ends: 13320 [2022-01-10 12:13:28,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:13:28,244 INFO L933 BasicCegarLoop]: 2414 mSDtfsCounter, 14733 mSDsluCounter, 12543 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14733 SdHoareTripleChecker+Valid, 14957 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:28,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14733 Valid, 14957 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 12:13:28,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13320 states. [2022-01-10 12:13:28,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13320 to 6103. [2022-01-10 12:13:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6103 states, 6099 states have (on average 1.6933923594031808) internal successors, (10328), 6102 states have internal predecessors, (10328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6103 states to 6103 states and 10328 transitions. [2022-01-10 12:13:28,908 INFO L78 Accepts]: Start accepts. Automaton has 6103 states and 10328 transitions. Word has length 116 [2022-01-10 12:13:28,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:28,909 INFO L470 AbstractCegarLoop]: Abstraction has 6103 states and 10328 transitions. [2022-01-10 12:13:28,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.88888888888889) internal successors, (116), 8 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:28,909 INFO L276 IsEmpty]: Start isEmpty. Operand 6103 states and 10328 transitions. [2022-01-10 12:13:28,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:13:28,920 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:28,920 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:28,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:13:28,921 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:28,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:28,921 INFO L85 PathProgramCache]: Analyzing trace with hash 255796004, now seen corresponding path program 1 times [2022-01-10 12:13:28,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:28,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172756926] [2022-01-10 12:13:28,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:28,922 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:28,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:29,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:29,057 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:29,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172756926] [2022-01-10 12:13:29,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172756926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:29,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:29,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:29,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495942072] [2022-01-10 12:13:29,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:29,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:29,059 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:29,060 INFO L87 Difference]: Start difference. First operand 6103 states and 10328 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:30,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:30,469 INFO L93 Difference]: Finished difference Result 17375 states and 28980 transitions. [2022-01-10 12:13:30,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:13:30,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 12:13:30,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:30,509 INFO L225 Difference]: With dead ends: 17375 [2022-01-10 12:13:30,510 INFO L226 Difference]: Without dead ends: 14628 [2022-01-10 12:13:30,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:30,521 INFO L933 BasicCegarLoop]: 1905 mSDtfsCounter, 2719 mSDsluCounter, 4848 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2719 SdHoareTripleChecker+Valid, 6753 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:30,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2719 Valid, 6753 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:30,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14628 states. [2022-01-10 12:13:31,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14628 to 11737. [2022-01-10 12:13:31,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11737 states, 11733 states have (on average 1.6967527486576324) internal successors, (19908), 11736 states have internal predecessors, (19908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11737 states to 11737 states and 19908 transitions. [2022-01-10 12:13:31,602 INFO L78 Accepts]: Start accepts. Automaton has 11737 states and 19908 transitions. Word has length 117 [2022-01-10 12:13:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:31,602 INFO L470 AbstractCegarLoop]: Abstraction has 11737 states and 19908 transitions. [2022-01-10 12:13:31,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 11737 states and 19908 transitions. [2022-01-10 12:13:31,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:13:31,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:31,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:31,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:13:31,623 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:31,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:31,624 INFO L85 PathProgramCache]: Analyzing trace with hash 441071215, now seen corresponding path program 1 times [2022-01-10 12:13:31,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:31,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769466300] [2022-01-10 12:13:31,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:31,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:31,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:31,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:31,714 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:31,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769466300] [2022-01-10 12:13:31,714 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769466300] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:31,714 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:31,714 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:31,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092028459] [2022-01-10 12:13:31,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:31,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:13:31,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:31,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:13:31,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:13:31,716 INFO L87 Difference]: Start difference. First operand 11737 states and 19908 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:32,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:32,791 INFO L93 Difference]: Finished difference Result 18011 states and 30041 transitions. [2022-01-10 12:13:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:13:32,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 12:13:32,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:32,829 INFO L225 Difference]: With dead ends: 18011 [2022-01-10 12:13:32,829 INFO L226 Difference]: Without dead ends: 14349 [2022-01-10 12:13:32,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:32,842 INFO L933 BasicCegarLoop]: 1625 mSDtfsCounter, 2974 mSDsluCounter, 1882 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2974 SdHoareTripleChecker+Valid, 3507 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:32,842 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2974 Valid, 3507 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:32,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14349 states. [2022-01-10 12:13:33,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14349 to 11737. [2022-01-10 12:13:33,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11737 states, 11733 states have (on average 1.696070911105429) internal successors, (19900), 11736 states have internal predecessors, (19900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:33,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11737 states to 11737 states and 19900 transitions. [2022-01-10 12:13:33,793 INFO L78 Accepts]: Start accepts. Automaton has 11737 states and 19900 transitions. Word has length 117 [2022-01-10 12:13:33,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:33,793 INFO L470 AbstractCegarLoop]: Abstraction has 11737 states and 19900 transitions. [2022-01-10 12:13:33,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 11737 states and 19900 transitions. [2022-01-10 12:13:33,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:13:33,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:33,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:33,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:13:33,812 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:33,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:33,813 INFO L85 PathProgramCache]: Analyzing trace with hash 860588046, now seen corresponding path program 1 times [2022-01-10 12:13:33,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:33,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731124697] [2022-01-10 12:13:33,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:33,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:33,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:33,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:33,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731124697] [2022-01-10 12:13:33,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731124697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:33,988 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:33,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:33,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537543138] [2022-01-10 12:13:33,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:33,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:33,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:33,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:33,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:33,989 INFO L87 Difference]: Start difference. First operand 11737 states and 19900 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:36,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:36,741 INFO L93 Difference]: Finished difference Result 32758 states and 54290 transitions. [2022-01-10 12:13:36,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:13:36,741 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-10 12:13:36,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:36,797 INFO L225 Difference]: With dead ends: 32758 [2022-01-10 12:13:36,797 INFO L226 Difference]: Without dead ends: 27393 [2022-01-10 12:13:36,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:36,814 INFO L933 BasicCegarLoop]: 4460 mSDtfsCounter, 3932 mSDsluCounter, 8130 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3932 SdHoareTripleChecker+Valid, 12590 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:36,814 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3932 Valid, 12590 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:13:36,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27393 states. [2022-01-10 12:13:38,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27393 to 15520. [2022-01-10 12:13:38,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15520 states, 15516 states have (on average 1.6689868522815159) internal successors, (25896), 15519 states have internal predecessors, (25896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:38,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15520 states to 15520 states and 25896 transitions. [2022-01-10 12:13:38,200 INFO L78 Accepts]: Start accepts. Automaton has 15520 states and 25896 transitions. Word has length 117 [2022-01-10 12:13:38,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:38,200 INFO L470 AbstractCegarLoop]: Abstraction has 15520 states and 25896 transitions. [2022-01-10 12:13:38,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:38,201 INFO L276 IsEmpty]: Start isEmpty. Operand 15520 states and 25896 transitions. [2022-01-10 12:13:38,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:13:38,222 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:38,223 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:38,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:13:38,223 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:38,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:38,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1811950864, now seen corresponding path program 1 times [2022-01-10 12:13:38,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:38,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736120691] [2022-01-10 12:13:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:38,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:38,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:38,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:38,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736120691] [2022-01-10 12:13:38,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736120691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:38,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:38,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:38,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813330133] [2022-01-10 12:13:38,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:38,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:38,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:38,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:38,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:38,360 INFO L87 Difference]: Start difference. First operand 15520 states and 25896 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:41,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:41,423 INFO L93 Difference]: Finished difference Result 44297 states and 72825 transitions. [2022-01-10 12:13:41,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:13:41,424 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 12:13:41,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:41,497 INFO L225 Difference]: With dead ends: 44297 [2022-01-10 12:13:41,497 INFO L226 Difference]: Without dead ends: 36637 [2022-01-10 12:13:41,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:41,522 INFO L933 BasicCegarLoop]: 1904 mSDtfsCounter, 2717 mSDsluCounter, 4845 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2717 SdHoareTripleChecker+Valid, 6749 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:41,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2717 Valid, 6749 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:41,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36637 states. [2022-01-10 12:13:44,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36637 to 28583. [2022-01-10 12:13:44,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28583 states, 28579 states have (on average 1.6727667168200426) internal successors, (47806), 28582 states have internal predecessors, (47806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:44,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28583 states to 28583 states and 47806 transitions. [2022-01-10 12:13:44,257 INFO L78 Accepts]: Start accepts. Automaton has 28583 states and 47806 transitions. Word has length 118 [2022-01-10 12:13:44,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:44,258 INFO L470 AbstractCegarLoop]: Abstraction has 28583 states and 47806 transitions. [2022-01-10 12:13:44,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:44,258 INFO L276 IsEmpty]: Start isEmpty. Operand 28583 states and 47806 transitions. [2022-01-10 12:13:44,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:13:44,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:44,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:44,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:13:44,293 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:44,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:44,293 INFO L85 PathProgramCache]: Analyzing trace with hash 518634683, now seen corresponding path program 1 times [2022-01-10 12:13:44,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:44,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603198673] [2022-01-10 12:13:44,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:44,294 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:44,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:44,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:44,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:44,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603198673] [2022-01-10 12:13:44,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603198673] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:44,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:44,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:13:44,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801293947] [2022-01-10 12:13:44,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:44,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:13:44,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:44,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:13:44,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:13:44,472 INFO L87 Difference]: Start difference. First operand 28583 states and 47806 transitions. Second operand has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:54,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:54,354 INFO L93 Difference]: Finished difference Result 104561 states and 169256 transitions. [2022-01-10 12:13:54,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:13:54,355 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 12:13:54,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:54,541 INFO L225 Difference]: With dead ends: 104561 [2022-01-10 12:13:54,541 INFO L226 Difference]: Without dead ends: 93124 [2022-01-10 12:13:54,588 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:13:54,589 INFO L933 BasicCegarLoop]: 2243 mSDtfsCounter, 13645 mSDsluCounter, 13107 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13645 SdHoareTripleChecker+Valid, 15350 SdHoareTripleChecker+Invalid, 923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:54,589 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13645 Valid, 15350 Invalid, 923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-10 12:13:54,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93124 states. [2022-01-10 12:13:59,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93124 to 50919. [2022-01-10 12:13:59,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50919 states, 50915 states have (on average 1.6792104487871944) internal successors, (85497), 50918 states have internal predecessors, (85497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:59,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50919 states to 50919 states and 85497 transitions. [2022-01-10 12:13:59,621 INFO L78 Accepts]: Start accepts. Automaton has 50919 states and 85497 transitions. Word has length 118 [2022-01-10 12:13:59,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:59,621 INFO L470 AbstractCegarLoop]: Abstraction has 50919 states and 85497 transitions. [2022-01-10 12:13:59,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.11111111111111) internal successors, (118), 8 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:59,622 INFO L276 IsEmpty]: Start isEmpty. Operand 50919 states and 85497 transitions. [2022-01-10 12:13:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:13:59,654 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:59,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:59,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:13:59,654 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:59,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2006731611, now seen corresponding path program 1 times [2022-01-10 12:13:59,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:59,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765812985] [2022-01-10 12:13:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:59,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:59,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:59,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:59,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765812985] [2022-01-10 12:13:59,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765812985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:59,809 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:59,809 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:59,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688041689] [2022-01-10 12:13:59,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:59,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:59,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:59,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:59,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:59,810 INFO L87 Difference]: Start difference. First operand 50919 states and 85497 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)