/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_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:48:20,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:48:20,272 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:48:20,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:48:20,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:48:20,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:48:20,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:48:20,294 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:48:20,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:48:20,295 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:48:20,296 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:48:20,297 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:48:20,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:48:20,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:48:20,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:48:20,299 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:48:20,299 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:48:20,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:48:20,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:48:20,302 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:48:20,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:48:20,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:48:20,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:48:20,305 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:48:20,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:48:20,307 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:48:20,307 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:48:20,307 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:48:20,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:48:20,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:48:20,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:48:20,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:48:20,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:48:20,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:48:20,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:48:20,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:48:20,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:48:20,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:48:20,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:48:20,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:48:20,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:48:20,323 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:48:20,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:48:20,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:48:20,350 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:48:20,350 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:48:20,350 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:48:20,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:48:20,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:48:20,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:48:20,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:48:20,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:48:20,353 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:48:20,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:48:20,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:48:20,354 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:48:20,354 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:48:20,512 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:48:20,525 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:48:20,527 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:48:20,528 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:48:20,528 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:48:20,529 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2022-01-10 23:48:20,592 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b16a8d217/31a20ce3eb5a4c9d80a7d29cd9042846/FLAGeb4ae0660 [2022-01-10 23:48:20,972 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:48:20,972 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec9_product09.cil.c [2022-01-10 23:48:20,984 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b16a8d217/31a20ce3eb5a4c9d80a7d29cd9042846/FLAGeb4ae0660 [2022-01-10 23:48:20,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b16a8d217/31a20ce3eb5a4c9d80a7d29cd9042846 [2022-01-10 23:48:20,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:48:20,995 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:48:20,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:48:20,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:48:20,999 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:48:20,999 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:20" (1/1) ... [2022-01-10 23:48:21,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ca24568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21, skipping insertion in model container [2022-01-10 23:48:21,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:48:20" (1/1) ... [2022-01-10 23:48:21,004 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:48:21,055 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:48:21,454 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_spec9_product09.cil.c[70349,70362] [2022-01-10 23:48:21,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:48:21,473 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:48:21,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:48:21,536 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_spec9_product09.cil.c[70349,70362] [2022-01-10 23:48:21,536 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:48:21,547 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:48:21,631 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_spec9_product09.cil.c[70349,70362] [2022-01-10 23:48:21,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:48:21,653 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:48:21,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21 WrapperNode [2022-01-10 23:48:21,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:48:21,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:48:21,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:48:21,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:48:21,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,691 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,783 INFO L137 Inliner]: procedures = 91, calls = 327, calls flagged for inlining = 180, calls inlined = 246, statements flattened = 8059 [2022-01-10 23:48:21,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:48:21,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:48:21,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:48:21,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:48:21,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:48:21,982 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:48:21,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:48:21,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:48:21,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (1/1) ... [2022-01-10 23:48:21,990 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:48:21,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:48:22,037 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 23:48:22,054 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 23:48:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:48:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:48:22,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:48:22,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:48:22,204 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:48:22,205 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:48:25,053 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:48:25,076 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:48:25,076 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:48:25,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:25 BoogieIcfgContainer [2022-01-10 23:48:25,080 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:48:25,080 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:48:25,080 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:48:25,081 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:48:25,083 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:25" (1/1) ... [2022-01-10 23:48:25,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:25 BasicIcfg [2022-01-10 23:48:25,625 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:48:25,626 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:48:25,626 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:48:25,628 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:48:25,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:48:20" (1/4) ... [2022-01-10 23:48:25,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c8199a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:25, skipping insertion in model container [2022-01-10 23:48:25,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:48:21" (2/4) ... [2022-01-10 23:48:25,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c8199a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:48:25, skipping insertion in model container [2022-01-10 23:48:25,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:48:25" (3/4) ... [2022-01-10 23:48:25,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c8199a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:48:25, skipping insertion in model container [2022-01-10 23:48:25,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:48:25" (4/4) ... [2022-01-10 23:48:25,630 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec9_product09.cil.cTransformedIcfg [2022-01-10 23:48:25,636 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:48:25,636 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:48:25,685 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:48:25,691 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 23:48:25,691 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:48:25,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 2392 states, 2386 states have (on average 1.8772003352891868) internal successors, (4479), 2391 states have internal predecessors, (4479), 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 23:48:25,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-01-10 23:48:25,749 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:25,749 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] [2022-01-10 23:48:25,750 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 23:48:25,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:25,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1378800628, now seen corresponding path program 1 times [2022-01-10 23:48:25,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:25,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074895739] [2022-01-10 23:48:25,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:25,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:25,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:26,062 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 23:48:26,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:26,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074895739] [2022-01-10 23:48:26,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074895739] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:26,063 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:26,063 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:26,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853806402] [2022-01-10 23:48:26,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:26,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:26,068 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:26,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:26,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:26,091 INFO L87 Difference]: Start difference. First operand has 2392 states, 2386 states have (on average 1.8772003352891868) internal successors, (4479), 2391 states have internal predecessors, (4479), 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 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 23:48:26,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:26,348 INFO L93 Difference]: Finished difference Result 4769 states and 8935 transitions. [2022-01-10 23:48:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:26,350 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 44 [2022-01-10 23:48:26,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:26,368 INFO L225 Difference]: With dead ends: 4769 [2022-01-10 23:48:26,368 INFO L226 Difference]: Without dead ends: 2381 [2022-01-10 23:48:26,376 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 23:48:26,384 INFO L933 BasicCegarLoop]: 4458 mSDtfsCounter, 4453 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4453 SdHoareTripleChecker+Valid, 4469 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 23:48:26,386 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4453 Valid, 4469 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:26,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-10 23:48:26,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2381. [2022-01-10 23:48:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2376 states have (on average 1.875) internal successors, (4455), 2380 states have internal predecessors, (4455), 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 23:48:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 4455 transitions. [2022-01-10 23:48:26,488 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 4455 transitions. Word has length 44 [2022-01-10 23:48:26,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:26,488 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 4455 transitions. [2022-01-10 23:48:26,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 23:48:26,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 4455 transitions. [2022-01-10 23:48:26,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:48:26,491 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:26,491 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] [2022-01-10 23:48:26,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:48:26,491 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 23:48:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:26,493 INFO L85 PathProgramCache]: Analyzing trace with hash -781620258, now seen corresponding path program 1 times [2022-01-10 23:48:26,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:26,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506899778] [2022-01-10 23:48:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:26,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:26,621 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 23:48:26,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:26,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506899778] [2022-01-10 23:48:26,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506899778] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:26,623 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:26,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:26,623 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288928536] [2022-01-10 23:48:26,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:26,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:26,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:26,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:26,629 INFO L87 Difference]: Start difference. First operand 2381 states and 4455 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 23:48:26,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:26,733 INFO L93 Difference]: Finished difference Result 4712 states and 8824 transitions. [2022-01-10 23:48:26,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:26,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 51 [2022-01-10 23:48:26,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:26,742 INFO L225 Difference]: With dead ends: 4712 [2022-01-10 23:48:26,742 INFO L226 Difference]: Without dead ends: 2381 [2022-01-10 23:48:26,745 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 23:48:26,746 INFO L933 BasicCegarLoop]: 4395 mSDtfsCounter, 4413 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4413 SdHoareTripleChecker+Valid, 4410 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 23:48:26,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4413 Valid, 4410 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:26,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2022-01-10 23:48:26,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2381. [2022-01-10 23:48:26,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2381 states, 2376 states have (on average 1.8644781144781144) internal successors, (4430), 2380 states have internal predecessors, (4430), 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 23:48:26,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2381 states to 2381 states and 4430 transitions. [2022-01-10 23:48:26,800 INFO L78 Accepts]: Start accepts. Automaton has 2381 states and 4430 transitions. Word has length 51 [2022-01-10 23:48:26,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:26,801 INFO L470 AbstractCegarLoop]: Abstraction has 2381 states and 4430 transitions. [2022-01-10 23:48:26,802 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 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 23:48:26,804 INFO L276 IsEmpty]: Start isEmpty. Operand 2381 states and 4430 transitions. [2022-01-10 23:48:26,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 23:48:26,811 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:26,811 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] [2022-01-10 23:48:26,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:48:26,812 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 23:48:26,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:26,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1427430021, now seen corresponding path program 1 times [2022-01-10 23:48:26,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:26,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870200527] [2022-01-10 23:48:26,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:26,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:26,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:26,885 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 23:48:26,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:26,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870200527] [2022-01-10 23:48:26,886 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870200527] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:26,886 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:26,886 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:48:26,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412335187] [2022-01-10 23:48:26,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:26,886 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:48:26,887 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:26,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:48:26,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:48:26,887 INFO L87 Difference]: Start difference. First operand 2381 states and 4430 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 23:48:27,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:27,095 INFO L93 Difference]: Finished difference Result 5731 states and 10672 transitions. [2022-01-10 23:48:27,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:48:27,096 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 54 [2022-01-10 23:48:27,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:27,109 INFO L225 Difference]: With dead ends: 5731 [2022-01-10 23:48:27,109 INFO L226 Difference]: Without dead ends: 4237 [2022-01-10 23:48:27,115 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:48:27,118 INFO L933 BasicCegarLoop]: 4613 mSDtfsCounter, 9780 mSDsluCounter, 5956 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9780 SdHoareTripleChecker+Valid, 10569 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:27,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9780 Valid, 10569 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:27,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4237 states. [2022-01-10 23:48:27,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4237 to 2385. [2022-01-10 23:48:27,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2380 states have (on average 1.8630252100840337) internal successors, (4434), 2384 states have internal predecessors, (4434), 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 23:48:27,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 4434 transitions. [2022-01-10 23:48:27,191 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 4434 transitions. Word has length 54 [2022-01-10 23:48:27,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:27,191 INFO L470 AbstractCegarLoop]: Abstraction has 2385 states and 4434 transitions. [2022-01-10 23:48:27,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 23:48:27,191 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 4434 transitions. [2022-01-10 23:48:27,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:48:27,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:27,194 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] [2022-01-10 23:48:27,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:48:27,194 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:27,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:27,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1435367754, now seen corresponding path program 1 times [2022-01-10 23:48:27,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:27,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125685034] [2022-01-10 23:48:27,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:27,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:27,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:27,290 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 23:48:27,290 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:27,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125685034] [2022-01-10 23:48:27,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125685034] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:27,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:27,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:27,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531627839] [2022-01-10 23:48:27,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:27,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:27,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:27,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:27,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:27,292 INFO L87 Difference]: Start difference. First operand 2385 states and 4434 transitions. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 23:48:27,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:27,443 INFO L93 Difference]: Finished difference Result 6153 states and 11498 transitions. [2022-01-10 23:48:27,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:27,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 57 [2022-01-10 23:48:27,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:27,458 INFO L225 Difference]: With dead ends: 6153 [2022-01-10 23:48:27,459 INFO L226 Difference]: Without dead ends: 4122 [2022-01-10 23:48:27,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:27,467 INFO L933 BasicCegarLoop]: 4377 mSDtfsCounter, 4277 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4277 SdHoareTripleChecker+Valid, 7668 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:27,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4277 Valid, 7668 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:27,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4122 states. [2022-01-10 23:48:27,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4122 to 4105. [2022-01-10 23:48:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4105 states, 4100 states have (on average 1.8682926829268294) internal successors, (7660), 4104 states have internal predecessors, (7660), 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 23:48:27,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4105 states to 4105 states and 7660 transitions. [2022-01-10 23:48:27,592 INFO L78 Accepts]: Start accepts. Automaton has 4105 states and 7660 transitions. Word has length 57 [2022-01-10 23:48:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:27,593 INFO L470 AbstractCegarLoop]: Abstraction has 4105 states and 7660 transitions. [2022-01-10 23:48:27,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 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 23:48:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 4105 states and 7660 transitions. [2022-01-10 23:48:27,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:48:27,596 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:27,596 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] [2022-01-10 23:48:27,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:48:27,596 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:27,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:27,597 INFO L85 PathProgramCache]: Analyzing trace with hash -15075091, now seen corresponding path program 1 times [2022-01-10 23:48:27,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:27,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402660200] [2022-01-10 23:48:27,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:27,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:27,678 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 23:48:27,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:27,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402660200] [2022-01-10 23:48:27,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402660200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:27,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:27,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:27,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690471606] [2022-01-10 23:48:27,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:27,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:27,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:27,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:27,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:27,680 INFO L87 Difference]: Start difference. First operand 4105 states and 7660 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 23:48:27,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:27,900 INFO L93 Difference]: Finished difference Result 11214 states and 20993 transitions. [2022-01-10 23:48:27,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:27,900 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 58 [2022-01-10 23:48:27,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:27,926 INFO L225 Difference]: With dead ends: 11214 [2022-01-10 23:48:27,926 INFO L226 Difference]: Without dead ends: 7464 [2022-01-10 23:48:27,934 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:27,934 INFO L933 BasicCegarLoop]: 4333 mSDtfsCounter, 4229 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4229 SdHoareTripleChecker+Valid, 7624 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:27,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4229 Valid, 7624 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:27,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7464 states. [2022-01-10 23:48:28,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7464 to 7447. [2022-01-10 23:48:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7447 states, 7442 states have (on average 1.8707336737436173) internal successors, (13922), 7446 states have internal predecessors, (13922), 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 23:48:28,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7447 states to 7447 states and 13922 transitions. [2022-01-10 23:48:28,144 INFO L78 Accepts]: Start accepts. Automaton has 7447 states and 13922 transitions. Word has length 58 [2022-01-10 23:48:28,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:28,147 INFO L470 AbstractCegarLoop]: Abstraction has 7447 states and 13922 transitions. [2022-01-10 23:48:28,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 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 23:48:28,147 INFO L276 IsEmpty]: Start isEmpty. Operand 7447 states and 13922 transitions. [2022-01-10 23:48:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-10 23:48:28,149 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:28,149 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] [2022-01-10 23:48:28,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:48:28,149 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:28,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:28,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1623042585, now seen corresponding path program 1 times [2022-01-10 23:48:28,150 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:28,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899970772] [2022-01-10 23:48:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:28,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:28,200 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 23:48:28,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:28,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899970772] [2022-01-10 23:48:28,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899970772] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:28,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:28,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:28,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48284779] [2022-01-10 23:48:28,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:28,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:28,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:28,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:28,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:28,202 INFO L87 Difference]: Start difference. First operand 7447 states and 13922 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 23:48:28,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:28,573 INFO L93 Difference]: Finished difference Result 21019 states and 39361 transitions. [2022-01-10 23:48:28,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:28,573 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 59 [2022-01-10 23:48:28,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:28,617 INFO L225 Difference]: With dead ends: 21019 [2022-01-10 23:48:28,617 INFO L226 Difference]: Without dead ends: 13928 [2022-01-10 23:48:28,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:28,629 INFO L933 BasicCegarLoop]: 4289 mSDtfsCounter, 4183 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4183 SdHoareTripleChecker+Valid, 7580 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:28,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4183 Valid, 7580 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:28,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13928 states. [2022-01-10 23:48:28,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13928 to 13911. [2022-01-10 23:48:28,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13911 states, 13906 states have (on average 1.870559470732058) internal successors, (26012), 13910 states have internal predecessors, (26012), 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 23:48:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 26012 transitions. [2022-01-10 23:48:29,033 INFO L78 Accepts]: Start accepts. Automaton has 13911 states and 26012 transitions. Word has length 59 [2022-01-10 23:48:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:29,034 INFO L470 AbstractCegarLoop]: Abstraction has 13911 states and 26012 transitions. [2022-01-10 23:48:29,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 2 states have internal predecessors, (59), 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 23:48:29,034 INFO L276 IsEmpty]: Start isEmpty. Operand 13911 states and 26012 transitions. [2022-01-10 23:48:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-10 23:48:29,036 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:29,036 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] [2022-01-10 23:48:29,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:48:29,036 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash 2064421019, now seen corresponding path program 1 times [2022-01-10 23:48:29,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:29,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555402732] [2022-01-10 23:48:29,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:29,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:29,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:29,107 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 23:48:29,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:29,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555402732] [2022-01-10 23:48:29,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555402732] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:29,107 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:29,107 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:29,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278417011] [2022-01-10 23:48:29,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:29,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:29,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:29,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:29,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:29,109 INFO L87 Difference]: Start difference. First operand 13911 states and 26012 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 23:48:29,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:29,626 INFO L93 Difference]: Finished difference Result 39946 states and 74745 transitions. [2022-01-10 23:48:29,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:29,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 60 [2022-01-10 23:48:29,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:29,682 INFO L225 Difference]: With dead ends: 39946 [2022-01-10 23:48:29,682 INFO L226 Difference]: Without dead ends: 26392 [2022-01-10 23:48:29,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:29,700 INFO L933 BasicCegarLoop]: 4246 mSDtfsCounter, 4139 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4139 SdHoareTripleChecker+Valid, 7537 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:29,700 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4139 Valid, 7537 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:29,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26392 states. [2022-01-10 23:48:30,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26392 to 26375. [2022-01-10 23:48:30,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26375 states, 26370 states have (on average 1.8684869169510807) internal successors, (49272), 26374 states have internal predecessors, (49272), 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 23:48:30,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26375 states to 26375 states and 49272 transitions. [2022-01-10 23:48:30,417 INFO L78 Accepts]: Start accepts. Automaton has 26375 states and 49272 transitions. Word has length 60 [2022-01-10 23:48:30,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:30,417 INFO L470 AbstractCegarLoop]: Abstraction has 26375 states and 49272 transitions. [2022-01-10 23:48:30,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 2 states have internal predecessors, (60), 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 23:48:30,418 INFO L276 IsEmpty]: Start isEmpty. Operand 26375 states and 49272 transitions. [2022-01-10 23:48:30,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-10 23:48:30,419 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:30,419 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] [2022-01-10 23:48:30,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:48:30,420 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 23:48:30,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1632027803, now seen corresponding path program 1 times [2022-01-10 23:48:30,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:30,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751153319] [2022-01-10 23:48:30,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:30,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:30,479 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 23:48:30,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:30,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751153319] [2022-01-10 23:48:30,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751153319] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:30,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:30,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:30,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559283822] [2022-01-10 23:48:30,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:30,480 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:30,480 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:30,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:30,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:30,481 INFO L87 Difference]: Start difference. First operand 26375 states and 49272 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 23:48:31,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:31,448 INFO L93 Difference]: Finished difference Result 76385 states and 142705 transitions. [2022-01-10 23:48:31,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:31,448 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 61 [2022-01-10 23:48:31,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:31,602 INFO L225 Difference]: With dead ends: 76385 [2022-01-10 23:48:31,603 INFO L226 Difference]: Without dead ends: 50368 [2022-01-10 23:48:31,645 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:31,646 INFO L933 BasicCegarLoop]: 4205 mSDtfsCounter, 4097 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4097 SdHoareTripleChecker+Valid, 7496 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:31,646 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4097 Valid, 7496 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:48:31,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50368 states. [2022-01-10 23:48:32,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50368 to 50351. [2022-01-10 23:48:32,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50351 states, 50346 states have (on average 1.8651332777181902) internal successors, (93902), 50350 states have internal predecessors, (93902), 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 23:48:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50351 states to 50351 states and 93902 transitions. [2022-01-10 23:48:33,109 INFO L78 Accepts]: Start accepts. Automaton has 50351 states and 93902 transitions. Word has length 61 [2022-01-10 23:48:33,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:33,110 INFO L470 AbstractCegarLoop]: Abstraction has 50351 states and 93902 transitions. [2022-01-10 23:48:33,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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 23:48:33,110 INFO L276 IsEmpty]: Start isEmpty. Operand 50351 states and 93902 transitions. [2022-01-10 23:48:33,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 23:48:33,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:33,112 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] [2022-01-10 23:48:33,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:48:33,112 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 23:48:33,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:33,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1574627092, now seen corresponding path program 1 times [2022-01-10 23:48:33,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:33,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443326395] [2022-01-10 23:48:33,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:33,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:33,170 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 23:48:33,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:33,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443326395] [2022-01-10 23:48:33,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443326395] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:33,170 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:33,170 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:48:33,171 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745620077] [2022-01-10 23:48:33,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:33,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:33,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:33,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:33,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:33,172 INFO L87 Difference]: Start difference. First operand 50351 states and 93902 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 23:48:34,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:34,702 INFO L93 Difference]: Finished difference Result 146384 states and 272909 transitions. [2022-01-10 23:48:34,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:34,703 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 62 [2022-01-10 23:48:34,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:34,983 INFO L225 Difference]: With dead ends: 146384 [2022-01-10 23:48:34,984 INFO L226 Difference]: Without dead ends: 96392 [2022-01-10 23:48:35,043 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:35,045 INFO L933 BasicCegarLoop]: 4166 mSDtfsCounter, 4057 mSDsluCounter, 3291 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4057 SdHoareTripleChecker+Valid, 7457 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:35,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4057 Valid, 7457 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:35,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96392 states. [2022-01-10 23:48:37,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96392 to 96375. [2022-01-10 23:48:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96375 states, 96370 states have (on average 1.8608903185638683) internal successors, (179334), 96374 states have internal predecessors, (179334), 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 23:48:37,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96375 states to 96375 states and 179334 transitions. [2022-01-10 23:48:37,526 INFO L78 Accepts]: Start accepts. Automaton has 96375 states and 179334 transitions. Word has length 62 [2022-01-10 23:48:37,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:37,528 INFO L470 AbstractCegarLoop]: Abstraction has 96375 states and 179334 transitions. [2022-01-10 23:48:37,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 2 states have internal predecessors, (62), 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 23:48:37,528 INFO L276 IsEmpty]: Start isEmpty. Operand 96375 states and 179334 transitions. [2022-01-10 23:48:37,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-01-10 23:48:37,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:37,539 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] [2022-01-10 23:48:37,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:48:37,539 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 23:48:37,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:37,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1445544373, now seen corresponding path program 1 times [2022-01-10 23:48:37,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:37,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163191179] [2022-01-10 23:48:37,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:37,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:37,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:37,583 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 23:48:37,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:37,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163191179] [2022-01-10 23:48:37,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163191179] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:37,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:37,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:37,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609019433] [2022-01-10 23:48:37,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:37,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:37,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:37,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:37,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:37,584 INFO L87 Difference]: Start difference. First operand 96375 states and 179334 transitions. Second operand has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 23:48:40,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:40,200 INFO L93 Difference]: Finished difference Result 265196 states and 493028 transitions. [2022-01-10 23:48:40,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:40,204 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 62 [2022-01-10 23:48:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:40,617 INFO L225 Difference]: With dead ends: 265196 [2022-01-10 23:48:40,617 INFO L226 Difference]: Without dead ends: 192283 [2022-01-10 23:48:40,691 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 23:48:40,692 INFO L933 BasicCegarLoop]: 4463 mSDtfsCounter, 4133 mSDsluCounter, 3320 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4133 SdHoareTripleChecker+Valid, 7783 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:40,692 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4133 Valid, 7783 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:48:41,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192283 states. [2022-01-10 23:48:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192283 to 192283. [2022-01-10 23:48:44,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192283 states, 192278 states have (on average 1.8604052465700704) internal successors, (357715), 192282 states have internal predecessors, (357715), 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 23:48:44,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192283 states to 192283 states and 357715 transitions. [2022-01-10 23:48:44,924 INFO L78 Accepts]: Start accepts. Automaton has 192283 states and 357715 transitions. Word has length 62 [2022-01-10 23:48:44,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:44,924 INFO L470 AbstractCegarLoop]: Abstraction has 192283 states and 357715 transitions. [2022-01-10 23:48:44,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.666666666666668) internal successors, (62), 3 states have internal predecessors, (62), 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 23:48:44,924 INFO L276 IsEmpty]: Start isEmpty. Operand 192283 states and 357715 transitions. [2022-01-10 23:48:44,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-10 23:48:44,927 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:44,927 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] [2022-01-10 23:48:44,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:48:44,927 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:44,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:44,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1862188918, now seen corresponding path program 1 times [2022-01-10 23:48:44,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:44,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606406119] [2022-01-10 23:48:44,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:44,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:44,968 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 23:48:44,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:44,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606406119] [2022-01-10 23:48:44,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606406119] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:44,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:44,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:44,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033963685] [2022-01-10 23:48:44,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:44,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:44,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:44,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:44,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:44,970 INFO L87 Difference]: Start difference. First operand 192283 states and 357715 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 23:48:50,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:48:50,136 INFO L93 Difference]: Finished difference Result 529236 states and 983602 transitions. [2022-01-10 23:48:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:48:50,136 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 63 [2022-01-10 23:48:50,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:48:51,234 INFO L225 Difference]: With dead ends: 529236 [2022-01-10 23:48:51,234 INFO L226 Difference]: Without dead ends: 383424 [2022-01-10 23:48:51,379 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 23:48:51,379 INFO L933 BasicCegarLoop]: 4157 mSDtfsCounter, 4132 mSDsluCounter, 3323 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4132 SdHoareTripleChecker+Valid, 7480 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:48:51,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4132 Valid, 7480 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:48:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383424 states. [2022-01-10 23:48:57,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383424 to 383422. [2022-01-10 23:48:58,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 383422 states, 383417 states have (on average 1.8597323540688075) internal successors, (713053), 383421 states have internal predecessors, (713053), 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 23:48:59,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383422 states to 383422 states and 713053 transitions. [2022-01-10 23:48:59,771 INFO L78 Accepts]: Start accepts. Automaton has 383422 states and 713053 transitions. Word has length 63 [2022-01-10 23:48:59,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:48:59,771 INFO L470 AbstractCegarLoop]: Abstraction has 383422 states and 713053 transitions. [2022-01-10 23:48:59,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 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 23:48:59,772 INFO L276 IsEmpty]: Start isEmpty. Operand 383422 states and 713053 transitions. [2022-01-10 23:48:59,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:48:59,775 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:48:59,775 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] [2022-01-10 23:48:59,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:48:59,775 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:48:59,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:48:59,775 INFO L85 PathProgramCache]: Analyzing trace with hash -1893267863, now seen corresponding path program 1 times [2022-01-10 23:48:59,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:48:59,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136688749] [2022-01-10 23:48:59,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:48:59,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:48:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:48:59,813 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 23:48:59,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:48:59,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136688749] [2022-01-10 23:48:59,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136688749] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:48:59,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:48:59,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:48:59,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51966663] [2022-01-10 23:48:59,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:48:59,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:48:59,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:48:59,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:48:59,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:48:59,815 INFO L87 Difference]: Start difference. First operand 383422 states and 713053 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 23:49:10,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:49:10,282 INFO L93 Difference]: Finished difference Result 1054457 states and 1958963 transitions. [2022-01-10 23:49:10,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:49:10,283 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2022-01-10 23:49:10,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:49:13,687 INFO L225 Difference]: With dead ends: 1054457 [2022-01-10 23:49:13,687 INFO L226 Difference]: Without dead ends: 762846 [2022-01-10 23:49:14,206 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 23:49:14,219 INFO L933 BasicCegarLoop]: 4157 mSDtfsCounter, 4131 mSDsluCounter, 3326 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 7483 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:49:14,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4131 Valid, 7483 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:49:15,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 762846 states.