/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_LAZY.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:56:04,433 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:56:04,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:56:04,494 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:56:04,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:56:04,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:56:04,495 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:56:04,497 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:56:04,498 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:56:04,499 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:56:04,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:56:04,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:56:04,500 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:56:04,501 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:56:04,501 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:56:04,502 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:56:04,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:56:04,503 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:56:04,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:56:04,505 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:56:04,506 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:56:04,506 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:56:04,507 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:56:04,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:56:04,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:56:04,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:56:04,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:56:04,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:56:04,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:56:04,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:56:04,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:56:04,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:56:04,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:56:04,512 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:56:04,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:56:04,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:56:04,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:56:04,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:56:04,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:56:04,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:56:04,515 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:56:04,515 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_LAZY.epf [2022-01-10 17:56:04,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:56:04,533 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:56:04,533 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:56:04,533 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:56:04,534 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:56:04,534 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:56:04,534 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:56:04,535 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:56:04,535 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:56:04,536 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:04,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:56:04,536 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:56:04,537 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:56:04,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:56:04,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:56:04,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:56:04,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:56:04,537 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_LAZY 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:56:04,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:56:04,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:56:04,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:56:04,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:56:04,760 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:56:04,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product20.cil.c [2022-01-10 17:56:04,813 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daae9dda9/d94214b54c5a41a0999351a6027620aa/FLAG6f0368775 [2022-01-10 17:56:05,247 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:56:05,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product20.cil.c [2022-01-10 17:56:05,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daae9dda9/d94214b54c5a41a0999351a6027620aa/FLAG6f0368775 [2022-01-10 17:56:05,558 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/daae9dda9/d94214b54c5a41a0999351a6027620aa [2022-01-10 17:56:05,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:56:05,563 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:56:05,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:05,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:56:05,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:56:05,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:05" (1/1) ... [2022-01-10 17:56:05,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e6dad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:05, skipping insertion in model container [2022-01-10 17:56:05,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:05" (1/1) ... [2022-01-10 17:56:05,574 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:56:05,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:05,925 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/elevator_spec2_product20.cil.c[38445,38458] [2022-01-10 17:56:06,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:06,024 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:56:06,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:06,103 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/elevator_spec2_product20.cil.c[38445,38458] [2022-01-10 17:56:06,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:06,146 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:56:06,193 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/elevator_spec2_product20.cil.c[38445,38458] [2022-01-10 17:56:06,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:06,248 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:56:06,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06 WrapperNode [2022-01-10 17:56:06,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:06,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:06,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:56:06,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:56:06,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,460 INFO L137 Inliner]: procedures = 98, calls = 346, calls flagged for inlining = 198, calls inlined = 574, statements flattened = 17346 [2022-01-10 17:56:06,461 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:06,462 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:56:06,462 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:56:06,462 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:56:06,468 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,468 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,577 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,712 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:56:06,713 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:56:06,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:56:06,714 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:56:06,715 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (1/1) ... [2022-01-10 17:56:06,719 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:56:06,737 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 17:56:06,743 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 17:56:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:56:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:56:06,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:56:06,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:56:06,927 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:56:06,928 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:56:12,600 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:56:12,641 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:56:12,641 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:56:12,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:12 BoogieIcfgContainer [2022-01-10 17:56:12,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:56:12,648 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:56:12,649 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:56:12,650 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:56:12,652 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:13,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:13 BasicIcfg [2022-01-10 17:56:13,664 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:56:13,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:56:13,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:56:13,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:56:13,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:56:05" (1/4) ... [2022-01-10 17:56:13,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586f8cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:13, skipping insertion in model container [2022-01-10 17:56:13,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:06" (2/4) ... [2022-01-10 17:56:13,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586f8cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:13, skipping insertion in model container [2022-01-10 17:56:13,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:12" (3/4) ... [2022-01-10 17:56:13,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586f8cdc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:56:13, skipping insertion in model container [2022-01-10 17:56:13,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:13" (4/4) ... [2022-01-10 17:56:13,669 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product20.cil.cTransformedIcfg [2022-01-10 17:56:13,673 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:56:13,673 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:56:13,732 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:56:13,737 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 17:56:13,737 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:56:13,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 4962 states, 4956 states have (on average 1.8666263115415658) internal successors, (9251), 4961 states have internal predecessors, (9251), 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 17:56:13,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 17:56:13,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:13,812 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] [2022-01-10 17:56:13,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:13,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:13,816 INFO L85 PathProgramCache]: Analyzing trace with hash 498247476, now seen corresponding path program 1 times [2022-01-10 17:56:13,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:13,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895786570] [2022-01-10 17:56:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:13,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:14,162 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 17:56:14,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:14,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895786570] [2022-01-10 17:56:14,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895786570] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:14,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:14,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:14,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788831950] [2022-01-10 17:56:14,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:14,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:14,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:14,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:14,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:14,226 INFO L87 Difference]: Start difference. First operand has 4962 states, 4956 states have (on average 1.8666263115415658) internal successors, (9251), 4961 states have internal predecessors, (9251), 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 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 17:56:14,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:14,513 INFO L93 Difference]: Finished difference Result 9909 states and 18479 transitions. [2022-01-10 17:56:14,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:14,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 33 [2022-01-10 17:56:14,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:14,541 INFO L225 Difference]: With dead ends: 9909 [2022-01-10 17:56:14,542 INFO L226 Difference]: Without dead ends: 4951 [2022-01-10 17:56:14,553 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 17:56:14,555 INFO L933 BasicCegarLoop]: 9230 mSDtfsCounter, 9225 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9225 SdHoareTripleChecker+Valid, 9241 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:14,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9225 Valid, 9241 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:14,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2022-01-10 17:56:14,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4951. [2022-01-10 17:56:14,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4946 states have (on average 1.8655479175090983) internal successors, (9227), 4950 states have internal predecessors, (9227), 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 17:56:14,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 9227 transitions. [2022-01-10 17:56:14,697 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 9227 transitions. Word has length 33 [2022-01-10 17:56:14,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:14,697 INFO L470 AbstractCegarLoop]: Abstraction has 4951 states and 9227 transitions. [2022-01-10 17:56:14,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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 17:56:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 9227 transitions. [2022-01-10 17:56:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 17:56:14,699 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:14,699 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] [2022-01-10 17:56:14,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:56:14,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:14,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:14,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1938134758, now seen corresponding path program 1 times [2022-01-10 17:56:14,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:14,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161370428] [2022-01-10 17:56:14,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:14,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:14,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:14,765 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 17:56:14,765 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:14,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161370428] [2022-01-10 17:56:14,766 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161370428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:14,766 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:14,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:14,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168280023] [2022-01-10 17:56:14,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:14,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:14,767 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:14,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:14,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:14,768 INFO L87 Difference]: Start difference. First operand 4951 states and 9227 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 17:56:14,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:14,927 INFO L93 Difference]: Finished difference Result 9852 states and 18368 transitions. [2022-01-10 17:56:14,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:14,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 40 [2022-01-10 17:56:14,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:14,946 INFO L225 Difference]: With dead ends: 9852 [2022-01-10 17:56:14,947 INFO L226 Difference]: Without dead ends: 4951 [2022-01-10 17:56:14,957 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 17:56:14,958 INFO L933 BasicCegarLoop]: 9167 mSDtfsCounter, 9185 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9185 SdHoareTripleChecker+Valid, 9182 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:14,959 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9185 Valid, 9182 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:14,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4951 states. [2022-01-10 17:56:15,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4951 to 4951. [2022-01-10 17:56:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4951 states, 4946 states have (on average 1.860493327941771) internal successors, (9202), 4950 states have internal predecessors, (9202), 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 17:56:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4951 states to 4951 states and 9202 transitions. [2022-01-10 17:56:15,077 INFO L78 Accepts]: Start accepts. Automaton has 4951 states and 9202 transitions. Word has length 40 [2022-01-10 17:56:15,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:15,078 INFO L470 AbstractCegarLoop]: Abstraction has 4951 states and 9202 transitions. [2022-01-10 17:56:15,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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 17:56:15,081 INFO L276 IsEmpty]: Start isEmpty. Operand 4951 states and 9202 transitions. [2022-01-10 17:56:15,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:56:15,087 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:15,088 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] [2022-01-10 17:56:15,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:56:15,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:15,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:15,089 INFO L85 PathProgramCache]: Analyzing trace with hash -478064785, now seen corresponding path program 1 times [2022-01-10 17:56:15,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:15,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087885625] [2022-01-10 17:56:15,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:15,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:15,160 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 17:56:15,161 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:15,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087885625] [2022-01-10 17:56:15,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087885625] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:15,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:15,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:15,162 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017361967] [2022-01-10 17:56:15,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:15,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:15,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:15,164 INFO L87 Difference]: Start difference. First operand 4951 states and 9202 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 17:56:15,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:15,488 INFO L93 Difference]: Finished difference Result 11169 states and 20814 transitions. [2022-01-10 17:56:15,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:15,489 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 43 [2022-01-10 17:56:15,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:15,519 INFO L225 Difference]: With dead ends: 11169 [2022-01-10 17:56:15,519 INFO L226 Difference]: Without dead ends: 8670 [2022-01-10 17:56:15,526 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 17:56:15,527 INFO L933 BasicCegarLoop]: 10135 mSDtfsCounter, 9142 mSDsluCounter, 6941 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9142 SdHoareTripleChecker+Valid, 17076 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:15,527 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9142 Valid, 17076 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:15,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8670 states. [2022-01-10 17:56:15,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8670 to 8670. [2022-01-10 17:56:15,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8670 states, 8665 states have (on average 1.8653202538949798) internal successors, (16163), 8669 states have internal predecessors, (16163), 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 17:56:15,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8670 states to 8670 states and 16163 transitions. [2022-01-10 17:56:15,738 INFO L78 Accepts]: Start accepts. Automaton has 8670 states and 16163 transitions. Word has length 43 [2022-01-10 17:56:15,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:15,739 INFO L470 AbstractCegarLoop]: Abstraction has 8670 states and 16163 transitions. [2022-01-10 17:56:15,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 17:56:15,739 INFO L276 IsEmpty]: Start isEmpty. Operand 8670 states and 16163 transitions. [2022-01-10 17:56:15,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:56:15,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:15,740 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] [2022-01-10 17:56:15,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:56:15,741 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:15,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:15,741 INFO L85 PathProgramCache]: Analyzing trace with hash -314536081, now seen corresponding path program 1 times [2022-01-10 17:56:15,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:15,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102358284] [2022-01-10 17:56:15,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:15,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:15,826 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 17:56:15,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:15,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102358284] [2022-01-10 17:56:15,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102358284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:15,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:15,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:15,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652078775] [2022-01-10 17:56:15,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:15,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:15,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:15,828 INFO L87 Difference]: Start difference. First operand 8670 states and 16163 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:56:16,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:16,198 INFO L93 Difference]: Finished difference Result 20849 states and 38910 transitions. [2022-01-10 17:56:16,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:16,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2022-01-10 17:56:16,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:16,251 INFO L225 Difference]: With dead ends: 20849 [2022-01-10 17:56:16,251 INFO L226 Difference]: Without dead ends: 15875 [2022-01-10 17:56:16,259 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 17:56:16,266 INFO L933 BasicCegarLoop]: 9199 mSDtfsCounter, 9141 mSDsluCounter, 6944 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9141 SdHoareTripleChecker+Valid, 16143 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:16,267 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9141 Valid, 16143 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:16,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15875 states. [2022-01-10 17:56:16,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15875 to 15873. [2022-01-10 17:56:16,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15873 states, 15868 states have (on average 1.867847239727754) internal successors, (29639), 15872 states have internal predecessors, (29639), 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 17:56:16,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15873 states to 15873 states and 29639 transitions. [2022-01-10 17:56:16,624 INFO L78 Accepts]: Start accepts. Automaton has 15873 states and 29639 transitions. Word has length 45 [2022-01-10 17:56:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:16,625 INFO L470 AbstractCegarLoop]: Abstraction has 15873 states and 29639 transitions. [2022-01-10 17:56:16,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 17:56:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 15873 states and 29639 transitions. [2022-01-10 17:56:16,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:56:16,626 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:16,626 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] [2022-01-10 17:56:16,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:56:16,627 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:16,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:16,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1568898867, now seen corresponding path program 1 times [2022-01-10 17:56:16,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:16,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107747606] [2022-01-10 17:56:16,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:16,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:16,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:16,681 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 17:56:16,681 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:16,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107747606] [2022-01-10 17:56:16,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107747606] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:16,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:16,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:16,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767696713] [2022-01-10 17:56:16,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:16,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:16,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:16,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:16,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:16,683 INFO L87 Difference]: Start difference. First operand 15873 states and 29639 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 17:56:17,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:17,205 INFO L93 Difference]: Finished difference Result 39727 states and 74191 transitions. [2022-01-10 17:56:17,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:17,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 46 [2022-01-10 17:56:17,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:17,276 INFO L225 Difference]: With dead ends: 39727 [2022-01-10 17:56:17,276 INFO L226 Difference]: Without dead ends: 29812 [2022-01-10 17:56:17,295 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 17:56:17,298 INFO L933 BasicCegarLoop]: 9199 mSDtfsCounter, 9129 mSDsluCounter, 6947 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9129 SdHoareTripleChecker+Valid, 16146 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:17,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9129 Valid, 16146 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:17,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29812 states. [2022-01-10 17:56:17,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29812 to 29808. [2022-01-10 17:56:17,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29808 states, 29803 states have (on average 1.8688387075126665) internal successors, (55697), 29807 states have internal predecessors, (55697), 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 17:56:17,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29808 states to 29808 states and 55697 transitions. [2022-01-10 17:56:17,916 INFO L78 Accepts]: Start accepts. Automaton has 29808 states and 55697 transitions. Word has length 46 [2022-01-10 17:56:17,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:17,917 INFO L470 AbstractCegarLoop]: Abstraction has 29808 states and 55697 transitions. [2022-01-10 17:56:17,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 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 17:56:17,918 INFO L276 IsEmpty]: Start isEmpty. Operand 29808 states and 55697 transitions. [2022-01-10 17:56:17,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:56:17,919 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:17,919 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] [2022-01-10 17:56:17,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:56:17,919 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:17,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:17,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1391199718, now seen corresponding path program 1 times [2022-01-10 17:56:17,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:17,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782702963] [2022-01-10 17:56:17,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:17,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:17,983 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 17:56:17,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:17,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782702963] [2022-01-10 17:56:17,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782702963] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:17,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:17,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:17,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523366949] [2022-01-10 17:56:17,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:17,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:17,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:17,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:17,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:17,985 INFO L87 Difference]: Start difference. First operand 29808 states and 55697 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 17:56:18,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:18,802 INFO L93 Difference]: Finished difference Result 76519 states and 142928 transitions. [2022-01-10 17:56:18,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:18,803 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2022-01-10 17:56:18,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:18,945 INFO L225 Difference]: With dead ends: 76519 [2022-01-10 17:56:18,945 INFO L226 Difference]: Without dead ends: 56741 [2022-01-10 17:56:18,975 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 17:56:18,976 INFO L933 BasicCegarLoop]: 9199 mSDtfsCounter, 9128 mSDsluCounter, 6950 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9128 SdHoareTripleChecker+Valid, 16149 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:18,976 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9128 Valid, 16149 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:19,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56741 states. [2022-01-10 17:56:20,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56741 to 56735. [2022-01-10 17:56:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56735 states, 56730 states have (on average 1.8689053410893708) internal successors, (106023), 56734 states have internal predecessors, (106023), 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 17:56:20,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56735 states to 56735 states and 106023 transitions. [2022-01-10 17:56:20,288 INFO L78 Accepts]: Start accepts. Automaton has 56735 states and 106023 transitions. Word has length 47 [2022-01-10 17:56:20,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:20,288 INFO L470 AbstractCegarLoop]: Abstraction has 56735 states and 106023 transitions. [2022-01-10 17:56:20,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 17:56:20,288 INFO L276 IsEmpty]: Start isEmpty. Operand 56735 states and 106023 transitions. [2022-01-10 17:56:20,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:56:20,290 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:20,290 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] [2022-01-10 17:56:20,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:56:20,290 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:20,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash -177493314, now seen corresponding path program 1 times [2022-01-10 17:56:20,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:20,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177816652] [2022-01-10 17:56:20,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:20,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:20,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:20,334 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 17:56:20,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:20,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177816652] [2022-01-10 17:56:20,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177816652] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:20,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:20,335 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:20,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495585808] [2022-01-10 17:56:20,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:20,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:20,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:20,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:20,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:20,337 INFO L87 Difference]: Start difference. First operand 56735 states and 106023 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 17:56:21,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:21,648 INFO L93 Difference]: Finished difference Result 148175 states and 276748 transitions. [2022-01-10 17:56:21,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:21,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2022-01-10 17:56:21,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:21,971 INFO L225 Difference]: With dead ends: 148175 [2022-01-10 17:56:21,971 INFO L226 Difference]: Without dead ends: 108703 [2022-01-10 17:56:22,031 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 17:56:22,033 INFO L933 BasicCegarLoop]: 9200 mSDtfsCounter, 9127 mSDsluCounter, 6953 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9127 SdHoareTripleChecker+Valid, 16153 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:22,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9127 Valid, 16153 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108703 states. [2022-01-10 17:56:23,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108703 to 108695. [2022-01-10 17:56:24,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.8684239580458184) internal successors, (203079), 108694 states have internal predecessors, (203079), 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 17:56:24,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 203079 transitions. [2022-01-10 17:56:24,487 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 203079 transitions. Word has length 48 [2022-01-10 17:56:24,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:24,487 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 203079 transitions. [2022-01-10 17:56:24,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 17:56:24,487 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 203079 transitions. [2022-01-10 17:56:24,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 17:56:24,535 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:24,535 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 17:56:24,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:56:24,535 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:24,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:24,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2007920369, now seen corresponding path program 1 times [2022-01-10 17:56:24,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:24,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141709477] [2022-01-10 17:56:24,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:24,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:24,641 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 17:56:24,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:24,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141709477] [2022-01-10 17:56:24,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141709477] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:24,642 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:24,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:24,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111216465] [2022-01-10 17:56:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:24,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:24,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:24,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:24,643 INFO L87 Difference]: Start difference. First operand 108695 states and 203079 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 17:56:27,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:27,451 INFO L93 Difference]: Finished difference Result 222094 states and 414817 transitions. [2022-01-10 17:56:27,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:27,451 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 17:56:27,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:27,913 INFO L225 Difference]: With dead ends: 222094 [2022-01-10 17:56:27,913 INFO L226 Difference]: Without dead ends: 115321 [2022-01-10 17:56:27,988 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 17:56:27,988 INFO L933 BasicCegarLoop]: 10313 mSDtfsCounter, 7139 mSDsluCounter, 4403 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7139 SdHoareTripleChecker+Valid, 14716 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:27,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7139 Valid, 14716 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:28,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115321 states. [2022-01-10 17:56:29,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115321 to 108695. [2022-01-10 17:56:30,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.8434906615143987) internal successors, (200369), 108694 states have internal predecessors, (200369), 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 17:56:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 200369 transitions. [2022-01-10 17:56:30,281 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 200369 transitions. Word has length 111 [2022-01-10 17:56:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:30,282 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 200369 transitions. [2022-01-10 17:56:30,282 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 17:56:30,282 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 200369 transitions. [2022-01-10 17:56:30,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 17:56:30,325 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:30,325 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 17:56:30,325 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:56:30,325 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:30,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:30,326 INFO L85 PathProgramCache]: Analyzing trace with hash -1139225638, now seen corresponding path program 1 times [2022-01-10 17:56:30,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:30,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891744001] [2022-01-10 17:56:30,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:30,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:30,399 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 17:56:30,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:30,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891744001] [2022-01-10 17:56:30,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891744001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:30,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:30,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:30,400 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945295072] [2022-01-10 17:56:30,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:30,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:30,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:30,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:30,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:30,403 INFO L87 Difference]: Start difference. First operand 108695 states and 200369 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 17:56:33,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:33,449 INFO L93 Difference]: Finished difference Result 225996 states and 416815 transitions. [2022-01-10 17:56:33,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:33,449 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 17:56:33,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:33,707 INFO L225 Difference]: With dead ends: 225996 [2022-01-10 17:56:33,707 INFO L226 Difference]: Without dead ends: 121795 [2022-01-10 17:56:33,775 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 17:56:33,776 INFO L933 BasicCegarLoop]: 11325 mSDtfsCounter, 6590 mSDsluCounter, 5039 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6590 SdHoareTripleChecker+Valid, 16364 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:33,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6590 Valid, 16364 Invalid, 1368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-01-10 17:56:33,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121795 states. [2022-01-10 17:56:35,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121795 to 108695. [2022-01-10 17:56:35,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.8220535467844328) internal successors, (198039), 108694 states have internal predecessors, (198039), 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 17:56:36,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 198039 transitions. [2022-01-10 17:56:36,138 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 198039 transitions. Word has length 116 [2022-01-10 17:56:36,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:36,138 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 198039 transitions. [2022-01-10 17:56:36,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 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 17:56:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 198039 transitions. [2022-01-10 17:56:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 17:56:36,176 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:36,177 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, 1, 1] [2022-01-10 17:56:36,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 17:56:36,177 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:36,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1216985955, now seen corresponding path program 1 times [2022-01-10 17:56:36,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:36,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339559729] [2022-01-10 17:56:36,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:36,178 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:36,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:36,226 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 17:56:36,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:36,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339559729] [2022-01-10 17:56:36,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339559729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:36,227 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:36,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:36,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816123661] [2022-01-10 17:56:36,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:36,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:36,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:36,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:36,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:36,228 INFO L87 Difference]: Start difference. First operand 108695 states and 198039 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 17:56:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:39,215 INFO L93 Difference]: Finished difference Result 229244 states and 418679 transitions. [2022-01-10 17:56:39,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:39,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 120 [2022-01-10 17:56:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:39,475 INFO L225 Difference]: With dead ends: 229244 [2022-01-10 17:56:39,475 INFO L226 Difference]: Without dead ends: 129935 [2022-01-10 17:56:39,548 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 17:56:39,548 INFO L933 BasicCegarLoop]: 12121 mSDtfsCounter, 6285 mSDsluCounter, 5675 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6285 SdHoareTripleChecker+Valid, 17796 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:39,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6285 Valid, 17796 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-10 17:56:39,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129935 states. [2022-01-10 17:56:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129935 to 108695. [2022-01-10 17:56:41,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.8050326616984083) internal successors, (196189), 108694 states have internal predecessors, (196189), 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 17:56:42,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 196189 transitions. [2022-01-10 17:56:42,006 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 196189 transitions. Word has length 120 [2022-01-10 17:56:42,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:42,006 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 196189 transitions. [2022-01-10 17:56:42,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 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 17:56:42,006 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 196189 transitions. [2022-01-10 17:56:42,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-10 17:56:42,047 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:42,047 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, 1, 1, 1, 1, 1] [2022-01-10 17:56:42,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 17:56:42,048 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:42,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:42,048 INFO L85 PathProgramCache]: Analyzing trace with hash 2010223140, now seen corresponding path program 1 times [2022-01-10 17:56:42,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:42,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893387374] [2022-01-10 17:56:42,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:42,049 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:42,106 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 17:56:42,106 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:42,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893387374] [2022-01-10 17:56:42,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893387374] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:42,106 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:42,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:42,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426848977] [2022-01-10 17:56:42,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:42,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:42,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:42,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:42,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:42,107 INFO L87 Difference]: Start difference. First operand 108695 states and 196189 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 17:56:45,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:45,293 INFO L93 Difference]: Finished difference Result 232132 states and 421303 transitions. [2022-01-10 17:56:45,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:45,294 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 123 [2022-01-10 17:56:45,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:45,567 INFO L225 Difference]: With dead ends: 232132 [2022-01-10 17:56:45,567 INFO L226 Difference]: Without dead ends: 139445 [2022-01-10 17:56:45,632 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 17:56:45,633 INFO L933 BasicCegarLoop]: 12897 mSDtfsCounter, 6020 mSDsluCounter, 6311 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 19208 SdHoareTripleChecker+Invalid, 1236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:45,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6020 Valid, 19208 Invalid, 1236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:45,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139445 states. [2022-01-10 17:56:47,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139445 to 108695. [2022-01-10 17:56:47,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.7933480540988131) internal successors, (194919), 108694 states have internal predecessors, (194919), 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 17:56:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 194919 transitions. [2022-01-10 17:56:48,053 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 194919 transitions. Word has length 123 [2022-01-10 17:56:48,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:48,054 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 194919 transitions. [2022-01-10 17:56:48,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 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 17:56:48,054 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 194919 transitions. [2022-01-10 17:56:48,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 17:56:48,094 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:48,094 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:48,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 17:56:48,094 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:48,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:48,094 INFO L85 PathProgramCache]: Analyzing trace with hash -143408472, now seen corresponding path program 1 times [2022-01-10 17:56:48,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:48,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872324613] [2022-01-10 17:56:48,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:48,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:48,143 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 17:56:48,143 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:48,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872324613] [2022-01-10 17:56:48,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872324613] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:48,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:48,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:48,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32926504] [2022-01-10 17:56:48,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:48,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:48,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:48,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:48,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:48,144 INFO L87 Difference]: Start difference. First operand 108695 states and 194919 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 17:56:51,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:51,328 INFO L93 Difference]: Finished difference Result 234948 states and 425345 transitions. [2022-01-10 17:56:51,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:51,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 125 [2022-01-10 17:56:51,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:51,634 INFO L225 Difference]: With dead ends: 234948 [2022-01-10 17:56:51,635 INFO L226 Difference]: Without dead ends: 149571 [2022-01-10 17:56:51,716 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 17:56:51,716 INFO L933 BasicCegarLoop]: 13653 mSDtfsCounter, 5795 mSDsluCounter, 6947 mSDsCounter, 0 mSdLazyCounter, 1078 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5795 SdHoareTripleChecker+Valid, 20600 SdHoareTripleChecker+Invalid, 1200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 1078 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:51,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5795 Valid, 20600 Invalid, 1200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 1078 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-01-10 17:56:51,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149571 states. [2022-01-10 17:56:54,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149571 to 108695. [2022-01-10 17:56:54,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108695 states, 108690 states have (on average 1.7874597479068912) internal successors, (194279), 108694 states have internal predecessors, (194279), 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 17:56:54,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108695 states to 108695 states and 194279 transitions. [2022-01-10 17:56:54,536 INFO L78 Accepts]: Start accepts. Automaton has 108695 states and 194279 transitions. Word has length 125 [2022-01-10 17:56:54,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:54,536 INFO L470 AbstractCegarLoop]: Abstraction has 108695 states and 194279 transitions. [2022-01-10 17:56:54,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 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 17:56:54,536 INFO L276 IsEmpty]: Start isEmpty. Operand 108695 states and 194279 transitions. [2022-01-10 17:56:54,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 17:56:54,592 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:54,592 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, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:54,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 17:56:54,593 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 17:56:54,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:54,593 INFO L85 PathProgramCache]: Analyzing trace with hash 887186851, now seen corresponding path program 1 times [2022-01-10 17:56:54,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:54,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897807245] [2022-01-10 17:56:54,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:54,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:54,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:54,692 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 17:56:54,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:54,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897807245] [2022-01-10 17:56:54,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897807245] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:54,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:54,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 17:56:54,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327354542] [2022-01-10 17:56:54,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:54,693 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 17:56:54,693 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:54,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 17:56:54,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 17:56:54,693 INFO L87 Difference]: Start difference. First operand 108695 states and 194279 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 17:56:58,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:58,618 INFO L93 Difference]: Finished difference Result 325985 states and 582715 transitions. [2022-01-10 17:56:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 17:56:58,619 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 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 125 [2022-01-10 17:56:58,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:59,106 INFO L225 Difference]: With dead ends: 325985 [2022-01-10 17:56:59,106 INFO L226 Difference]: Without dead ends: 217319 [2022-01-10 17:56:59,193 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 17:56:59,194 INFO L933 BasicCegarLoop]: 17709 mSDtfsCounter, 26566 mSDsluCounter, 8874 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26566 SdHoareTripleChecker+Valid, 26583 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:59,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26566 Valid, 26583 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:59,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217319 states.