/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 17:56:10,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 17:56:10,320 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 17:56:10,368 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 17:56:10,369 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 17:56:10,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 17:56:10,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 17:56:10,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 17:56:10,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 17:56:10,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 17:56:10,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 17:56:10,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 17:56:10,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 17:56:10,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 17:56:10,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 17:56:10,393 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 17:56:10,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 17:56:10,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 17:56:10,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 17:56:10,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 17:56:10,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 17:56:10,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 17:56:10,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 17:56:10,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 17:56:10,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 17:56:10,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 17:56:10,404 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 17:56:10,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 17:56:10,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 17:56:10,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 17:56:10,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 17:56:10,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 17:56:10,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 17:56:10,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 17:56:10,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 17:56:10,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 17:56:10,408 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 17:56:10,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 17:56:10,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 17:56:10,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 17:56:10,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 17:56:10,411 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 17:56:10,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 17:56:10,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 17:56:10,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 17:56:10,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 17:56:10,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 17:56:10,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 17:56:10,447 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 17:56:10,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 17:56:10,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 17:56:10,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 17:56:10,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 17:56:10,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 17:56:10,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 17:56:10,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 17:56:10,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 17:56:10,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 17:56:10,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:10,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 17:56:10,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 17:56:10,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 17:56:10,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 17:56:10,452 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 17:56:10,452 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 17:56:10,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 17:56:10,696 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 17:56:10,698 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 17:56:10,699 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 17:56:10,701 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 17:56:10,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2022-01-10 17:56:10,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27dc95eea/b4d403923729492797c78980170ed19e/FLAG2ecb452b2 [2022-01-10 17:56:11,272 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 17:56:11,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product22.cil.c [2022-01-10 17:56:11,301 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27dc95eea/b4d403923729492797c78980170ed19e/FLAG2ecb452b2 [2022-01-10 17:56:11,578 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/27dc95eea/b4d403923729492797c78980170ed19e [2022-01-10 17:56:11,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 17:56:11,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 17:56:11,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:11,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 17:56:11,584 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 17:56:11,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:11" (1/1) ... [2022-01-10 17:56:11,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a0df84c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:11, skipping insertion in model container [2022-01-10 17:56:11,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 05:56:11" (1/1) ... [2022-01-10 17:56:11,591 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 17:56:11,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:11,801 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_product22.cil.c[1545,1558] [2022-01-10 17:56:12,133 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:12,150 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 17:56:12,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 17:56:12,176 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_product22.cil.c[1545,1558] [2022-01-10 17:56:12,291 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:12,295 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 17:56:12,305 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_product22.cil.c[1545,1558] [2022-01-10 17:56:12,405 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 17:56:12,432 INFO L208 MainTranslator]: Completed translation [2022-01-10 17:56:12,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12 WrapperNode [2022-01-10 17:56:12,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 17:56:12,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:12,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 17:56:12,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 17:56:12,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,469 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,773 INFO L137 Inliner]: procedures = 96, calls = 345, calls flagged for inlining = 197, calls inlined = 734, statements flattened = 25393 [2022-01-10 17:56:12,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 17:56:12,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 17:56:12,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 17:56:12,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 17:56:12,783 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,848 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,849 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:12,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:13,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:13,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:13,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 17:56:13,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 17:56:13,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 17:56:13,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 17:56:13,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (1/1) ... [2022-01-10 17:56:13,285 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 17:56:13,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 17:56:13,313 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 17:56:13,415 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 17:56:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 17:56:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 17:56:13,459 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 17:56:13,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 17:56:13,673 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 17:56:13,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 17:56:23,390 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 17:56:23,443 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 17:56:23,443 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 17:56:23,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:23 BoogieIcfgContainer [2022-01-10 17:56:23,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 17:56:23,453 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 17:56:23,453 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 17:56:23,455 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 17:56:23,458 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:23" (1/1) ... [2022-01-10 17:56:25,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:25 BasicIcfg [2022-01-10 17:56:25,325 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 17:56:25,329 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 17:56:25,329 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 17:56:25,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 17:56:25,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 05:56:11" (1/4) ... [2022-01-10 17:56:25,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3384ab7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:25, skipping insertion in model container [2022-01-10 17:56:25,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 05:56:12" (2/4) ... [2022-01-10 17:56:25,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3384ab7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 05:56:25, skipping insertion in model container [2022-01-10 17:56:25,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 05:56:23" (3/4) ... [2022-01-10 17:56:25,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3384ab7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 05:56:25, skipping insertion in model container [2022-01-10 17:56:25,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 05:56:25" (4/4) ... [2022-01-10 17:56:25,334 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product22.cil.cTransformedIcfg [2022-01-10 17:56:25,339 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 17:56:25,339 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 17:56:25,412 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 17:56:25,417 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 17:56:25,417 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 17:56:25,542 INFO L276 IsEmpty]: Start isEmpty. Operand has 6886 states, 6880 states have (on average 1.8806686046511627) internal successors, (12939), 6885 states have internal predecessors, (12939), 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 17:56:25,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-01-10 17:56:25,562 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:25,562 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 17:56:25,563 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 17:56:25,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:25,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1700768407, now seen corresponding path program 1 times [2022-01-10 17:56:25,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:25,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902596745] [2022-01-10 17:56:25,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:25,577 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:25,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:25,996 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 17:56:25,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:25,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902596745] [2022-01-10 17:56:25,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902596745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:25,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:25,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:25,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055746815] [2022-01-10 17:56:26,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:26,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:26,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:26,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:26,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:26,049 INFO L87 Difference]: Start difference. First operand has 6886 states, 6880 states have (on average 1.8806686046511627) internal successors, (12939), 6885 states have internal predecessors, (12939), 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 17:56:26,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:26,508 INFO L93 Difference]: Finished difference Result 13757 states and 25855 transitions. [2022-01-10 17:56:26,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:26,513 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 17:56:26,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:26,576 INFO L225 Difference]: With dead ends: 13757 [2022-01-10 17:56:26,576 INFO L226 Difference]: Without dead ends: 6875 [2022-01-10 17:56:26,602 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 17:56:26,607 INFO L933 BasicCegarLoop]: 12918 mSDtfsCounter, 12913 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12913 SdHoareTripleChecker+Valid, 12929 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 17:56:26,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12913 Valid, 12929 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 17:56:26,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6875 states. [2022-01-10 17:56:27,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6875 to 6875. [2022-01-10 17:56:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6875 states, 6870 states have (on average 1.8799126637554586) internal successors, (12915), 6874 states have internal predecessors, (12915), 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 17:56:27,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6875 states to 6875 states and 12915 transitions. [2022-01-10 17:56:27,074 INFO L78 Accepts]: Start accepts. Automaton has 6875 states and 12915 transitions. Word has length 33 [2022-01-10 17:56:27,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:27,074 INFO L470 AbstractCegarLoop]: Abstraction has 6875 states and 12915 transitions. [2022-01-10 17:56:27,074 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 17:56:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 6875 states and 12915 transitions. [2022-01-10 17:56:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-10 17:56:27,078 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:27,078 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 17:56:27,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 17:56:27,079 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 17:56:27,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1653774134, now seen corresponding path program 1 times [2022-01-10 17:56:27,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:27,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339324879] [2022-01-10 17:56:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:27,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:27,189 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 17:56:27,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:27,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339324879] [2022-01-10 17:56:27,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339324879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:27,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:27,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:27,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772774911] [2022-01-10 17:56:27,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:27,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:27,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:27,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:27,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:27,196 INFO L87 Difference]: Start difference. First operand 6875 states and 12915 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 17:56:27,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:27,578 INFO L93 Difference]: Finished difference Result 13700 states and 25744 transitions. [2022-01-10 17:56:27,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:27,579 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 17:56:27,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:27,613 INFO L225 Difference]: With dead ends: 13700 [2022-01-10 17:56:27,614 INFO L226 Difference]: Without dead ends: 6875 [2022-01-10 17:56:27,628 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 17:56:27,629 INFO L933 BasicCegarLoop]: 12855 mSDtfsCounter, 12873 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12873 SdHoareTripleChecker+Valid, 12870 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:27,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12873 Valid, 12870 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:27,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6875 states. [2022-01-10 17:56:27,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6875 to 6875. [2022-01-10 17:56:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6875 states, 6870 states have (on average 1.8762736535662299) internal successors, (12890), 6874 states have internal predecessors, (12890), 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 17:56:27,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6875 states to 6875 states and 12890 transitions. [2022-01-10 17:56:27,924 INFO L78 Accepts]: Start accepts. Automaton has 6875 states and 12890 transitions. Word has length 40 [2022-01-10 17:56:27,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:27,924 INFO L470 AbstractCegarLoop]: Abstraction has 6875 states and 12890 transitions. [2022-01-10 17:56:27,925 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 17:56:27,925 INFO L276 IsEmpty]: Start isEmpty. Operand 6875 states and 12890 transitions. [2022-01-10 17:56:27,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-01-10 17:56:27,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:27,928 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 17:56:27,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 17:56:27,928 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 17:56:27,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:27,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1898190759, now seen corresponding path program 1 times [2022-01-10 17:56:27,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:27,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441153449] [2022-01-10 17:56:27,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:27,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:28,042 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 17:56:28,042 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:28,042 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441153449] [2022-01-10 17:56:28,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441153449] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:28,043 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:28,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:28,043 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493928126] [2022-01-10 17:56:28,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:28,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:28,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:28,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:28,045 INFO L87 Difference]: Start difference. First operand 6875 states and 12890 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 17:56:28,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:28,613 INFO L93 Difference]: Finished difference Result 15017 states and 28190 transitions. [2022-01-10 17:56:28,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:28,614 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 17:56:28,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:28,678 INFO L225 Difference]: With dead ends: 15017 [2022-01-10 17:56:28,678 INFO L226 Difference]: Without dead ends: 11556 [2022-01-10 17:56:28,692 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 17:56:28,694 INFO L933 BasicCegarLoop]: 13823 mSDtfsCounter, 12830 mSDsluCounter, 8785 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12830 SdHoareTripleChecker+Valid, 22608 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:28,695 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12830 Valid, 22608 Invalid, 38 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11556 states. [2022-01-10 17:56:29,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11556 to 11556. [2022-01-10 17:56:29,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11556 states, 11551 states have (on average 1.8781923642974634) internal successors, (21695), 11555 states have internal predecessors, (21695), 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 17:56:29,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11556 states to 11556 states and 21695 transitions. [2022-01-10 17:56:29,162 INFO L78 Accepts]: Start accepts. Automaton has 11556 states and 21695 transitions. Word has length 43 [2022-01-10 17:56:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:29,162 INFO L470 AbstractCegarLoop]: Abstraction has 11556 states and 21695 transitions. [2022-01-10 17:56:29,163 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 17:56:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 11556 states and 21695 transitions. [2022-01-10 17:56:29,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-01-10 17:56:29,166 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:29,167 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 17:56:29,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 17:56:29,167 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 17:56:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1196654926, now seen corresponding path program 1 times [2022-01-10 17:56:29,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:29,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733094492] [2022-01-10 17:56:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:29,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:29,236 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 17:56:29,237 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:29,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733094492] [2022-01-10 17:56:29,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733094492] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:29,237 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:29,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:29,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893157994] [2022-01-10 17:56:29,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:29,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:29,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:29,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:29,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:29,239 INFO L87 Difference]: Start difference. First operand 11556 states and 21695 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 17:56:29,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:29,835 INFO L93 Difference]: Finished difference Result 27583 states and 51818 transitions. [2022-01-10 17:56:29,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:29,836 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 17:56:29,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:29,908 INFO L225 Difference]: With dead ends: 27583 [2022-01-10 17:56:29,909 INFO L226 Difference]: Without dead ends: 20685 [2022-01-10 17:56:29,927 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 17:56:29,935 INFO L933 BasicCegarLoop]: 12887 mSDtfsCounter, 12829 mSDsluCounter, 8788 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12829 SdHoareTripleChecker+Valid, 21675 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 17:56:29,936 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12829 Valid, 21675 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:29,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20685 states. [2022-01-10 17:56:30,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20685 to 20683. [2022-01-10 17:56:30,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20683 states, 20678 states have (on average 1.8792436405841957) internal successors, (38859), 20682 states have internal predecessors, (38859), 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 17:56:30,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20683 states to 20683 states and 38859 transitions. [2022-01-10 17:56:30,581 INFO L78 Accepts]: Start accepts. Automaton has 20683 states and 38859 transitions. Word has length 45 [2022-01-10 17:56:30,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:30,582 INFO L470 AbstractCegarLoop]: Abstraction has 20683 states and 38859 transitions. [2022-01-10 17:56:30,582 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 17:56:30,582 INFO L276 IsEmpty]: Start isEmpty. Operand 20683 states and 38859 transitions. [2022-01-10 17:56:30,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-01-10 17:56:30,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:30,586 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 17:56:30,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 17:56:30,586 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 17:56:30,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:30,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1150197552, now seen corresponding path program 1 times [2022-01-10 17:56:30,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:30,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966083714] [2022-01-10 17:56:30,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:30,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:30,662 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 17:56:30,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:30,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966083714] [2022-01-10 17:56:30,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966083714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:30,663 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:30,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:30,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507722966] [2022-01-10 17:56:30,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:30,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:30,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:30,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:30,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:30,665 INFO L87 Difference]: Start difference. First operand 20683 states and 38859 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 17:56:31,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:31,700 INFO L93 Difference]: Finished difference Result 52233 states and 98163 transitions. [2022-01-10 17:56:31,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:31,701 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 17:56:31,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:31,830 INFO L225 Difference]: With dead ends: 52233 [2022-01-10 17:56:31,830 INFO L226 Difference]: Without dead ends: 38470 [2022-01-10 17:56:31,863 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 17:56:31,863 INFO L933 BasicCegarLoop]: 12887 mSDtfsCounter, 12817 mSDsluCounter, 8791 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12817 SdHoareTripleChecker+Valid, 21678 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:31,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12817 Valid, 21678 Invalid, 38 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:31,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38470 states. [2022-01-10 17:56:32,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38470 to 38466. [2022-01-10 17:56:32,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38466 states, 38461 states have (on average 1.8796443150204103) internal successors, (72293), 38465 states have internal predecessors, (72293), 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 17:56:33,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38466 states to 38466 states and 72293 transitions. [2022-01-10 17:56:33,059 INFO L78 Accepts]: Start accepts. Automaton has 38466 states and 72293 transitions. Word has length 46 [2022-01-10 17:56:33,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:33,065 INFO L470 AbstractCegarLoop]: Abstraction has 38466 states and 72293 transitions. [2022-01-10 17:56:33,066 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 17:56:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 38466 states and 72293 transitions. [2022-01-10 17:56:33,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-01-10 17:56:33,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:33,069 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 17:56:33,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 17:56:33,069 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 17:56:33,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:33,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1296420236, now seen corresponding path program 1 times [2022-01-10 17:56:33,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:33,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323637208] [2022-01-10 17:56:33,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:33,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:33,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:33,140 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 17:56:33,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:33,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323637208] [2022-01-10 17:56:33,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323637208] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:33,141 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:33,141 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:33,141 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907138920] [2022-01-10 17:56:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:33,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:33,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:33,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:33,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:33,142 INFO L87 Difference]: Start difference. First operand 38466 states and 72293 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 17:56:34,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:34,897 INFO L93 Difference]: Finished difference Result 100569 states and 189028 transitions. [2022-01-10 17:56:34,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:34,898 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 17:56:34,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:35,198 INFO L225 Difference]: With dead ends: 100569 [2022-01-10 17:56:35,198 INFO L226 Difference]: Without dead ends: 73095 [2022-01-10 17:56:35,262 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 17:56:35,264 INFO L933 BasicCegarLoop]: 12887 mSDtfsCounter, 12816 mSDsluCounter, 8794 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12816 SdHoareTripleChecker+Valid, 21681 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 17:56:35,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12816 Valid, 21681 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73095 states. [2022-01-10 17:56:37,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73095 to 73089. [2022-01-10 17:56:37,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73089 states, 73084 states have (on average 1.8796316567237699) internal successors, (137371), 73088 states have internal predecessors, (137371), 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 17:56:37,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73089 states to 73089 states and 137371 transitions. [2022-01-10 17:56:37,902 INFO L78 Accepts]: Start accepts. Automaton has 73089 states and 137371 transitions. Word has length 47 [2022-01-10 17:56:37,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:37,903 INFO L470 AbstractCegarLoop]: Abstraction has 73089 states and 137371 transitions. [2022-01-10 17:56:37,903 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 17:56:37,903 INFO L276 IsEmpty]: Start isEmpty. Operand 73089 states and 137371 transitions. [2022-01-10 17:56:37,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-10 17:56:37,908 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:37,908 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 17:56:37,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 17:56:37,908 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 17:56:37,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1534356288, now seen corresponding path program 1 times [2022-01-10 17:56:37,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:37,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916547054] [2022-01-10 17:56:37,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:37,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:37,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:37,989 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 17:56:37,990 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:37,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916547054] [2022-01-10 17:56:37,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916547054] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:37,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:37,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:37,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892294762] [2022-01-10 17:56:37,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:37,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:37,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:37,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:37,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:37,991 INFO L87 Difference]: Start difference. First operand 73089 states and 137371 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 17:56:40,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:40,497 INFO L93 Difference]: Finished difference Result 195313 states and 367104 transitions. [2022-01-10 17:56:40,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:40,498 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 17:56:40,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:41,131 INFO L225 Difference]: With dead ends: 195313 [2022-01-10 17:56:41,131 INFO L226 Difference]: Without dead ends: 140449 [2022-01-10 17:56:41,235 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 17:56:41,237 INFO L933 BasicCegarLoop]: 12888 mSDtfsCounter, 12815 mSDsluCounter, 8797 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12815 SdHoareTripleChecker+Valid, 21685 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:41,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12815 Valid, 21685 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 17:56:41,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140449 states. [2022-01-10 17:56:44,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140449 to 140441. [2022-01-10 17:56:44,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140441 states, 140436 states have (on average 1.879368537981714) internal successors, (263931), 140440 states have internal predecessors, (263931), 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 17:56:45,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140441 states to 140441 states and 263931 transitions. [2022-01-10 17:56:45,360 INFO L78 Accepts]: Start accepts. Automaton has 140441 states and 263931 transitions. Word has length 48 [2022-01-10 17:56:45,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:45,360 INFO L470 AbstractCegarLoop]: Abstraction has 140441 states and 263931 transitions. [2022-01-10 17:56:45,360 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 17:56:45,361 INFO L276 IsEmpty]: Start isEmpty. Operand 140441 states and 263931 transitions. [2022-01-10 17:56:45,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 17:56:45,426 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:45,426 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] [2022-01-10 17:56:45,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 17:56:45,426 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 17:56:45,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:45,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1055842340, now seen corresponding path program 1 times [2022-01-10 17:56:45,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:45,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795494255] [2022-01-10 17:56:45,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:45,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:45,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:45,536 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 17:56:45,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:45,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795494255] [2022-01-10 17:56:45,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795494255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:45,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:45,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:45,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626166215] [2022-01-10 17:56:45,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:45,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:45,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:45,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:45,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:45,540 INFO L87 Difference]: Start difference. First operand 140441 states and 263931 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 17:56:49,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 17:56:49,904 INFO L93 Difference]: Finished difference Result 285586 states and 536521 transitions. [2022-01-10 17:56:49,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 17:56:49,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 109 [2022-01-10 17:56:49,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 17:56:50,360 INFO L225 Difference]: With dead ends: 285586 [2022-01-10 17:56:50,360 INFO L226 Difference]: Without dead ends: 148029 [2022-01-10 17:56:50,473 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 17:56:50,474 INFO L933 BasicCegarLoop]: 15845 mSDtfsCounter, 8983 mSDsluCounter, 8091 mSDsCounter, 0 mSdLazyCounter, 1326 mSolverCounterSat, 138 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8983 SdHoareTripleChecker+Valid, 23936 SdHoareTripleChecker+Invalid, 1464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 17:56:50,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8983 Valid, 23936 Invalid, 1464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1326 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 17:56:50,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148029 states. [2022-01-10 17:56:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148029 to 140441. [2022-01-10 17:56:53,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140441 states, 140436 states have (on average 1.86007149164032) internal successors, (261221), 140440 states have internal predecessors, (261221), 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 17:56:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140441 states to 140441 states and 261221 transitions. [2022-01-10 17:56:54,202 INFO L78 Accepts]: Start accepts. Automaton has 140441 states and 261221 transitions. Word has length 109 [2022-01-10 17:56:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 17:56:54,203 INFO L470 AbstractCegarLoop]: Abstraction has 140441 states and 261221 transitions. [2022-01-10 17:56:54,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 17:56:54,203 INFO L276 IsEmpty]: Start isEmpty. Operand 140441 states and 261221 transitions. [2022-01-10 17:56:54,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 17:56:54,258 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 17:56:54,258 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 17:56:54,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 17:56:54,258 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 17:56:54,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 17:56:54,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2063033443, now seen corresponding path program 1 times [2022-01-10 17:56:54,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 17:56:54,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82500065] [2022-01-10 17:56:54,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 17:56:54,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 17:56:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 17:56:54,346 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 17:56:54,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 17:56:54,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82500065] [2022-01-10 17:56:54,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82500065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 17:56:54,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 17:56:54,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 17:56:54,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988879350] [2022-01-10 17:56:54,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 17:56:54,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 17:56:54,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 17:56:54,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 17:56:54,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 17:56:54,349 INFO L87 Difference]: Start difference. First operand 140441 states and 261221 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)