/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_spec1_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:44:08,797 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:44:08,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:44:08,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:44:08,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:44:08,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:44:08,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:44:08,872 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:44:08,873 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:44:08,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:44:08,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:44:08,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:44:08,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:44:08,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:44:08,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:44:08,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:44:08,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:44:08,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:44:08,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:44:08,880 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:44:08,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:44:08,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:44:08,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:44:08,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:44:08,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:44:08,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:44:08,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:44:08,885 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:44:08,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:44:08,886 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:44:08,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:44:08,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:44:08,887 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:44:08,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:44:08,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:44:08,888 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:44:08,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:44:08,889 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:44:08,889 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:44:08,890 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:44:08,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:44:08,891 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 23:44:08,905 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:44:08,905 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:44:08,905 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:44:08,906 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:44:08,906 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:44:08,906 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:44:08,907 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:44:08,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:44:08,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:44:08,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:08,909 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:44:08,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:44:08,910 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:44:08,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:44:08,910 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:44:08,910 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:44:09,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:44:09,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:44:09,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:44:09,054 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:44:09,055 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:44:09,055 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2022-01-10 23:44:09,108 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d63ef9de/6ac2ce979c334a07b4f77c4068bf096d/FLAGea888be6a [2022-01-10 23:44:09,567 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:44:09,568 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec1_product19.cil.c [2022-01-10 23:44:09,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d63ef9de/6ac2ce979c334a07b4f77c4068bf096d/FLAGea888be6a [2022-01-10 23:44:09,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d63ef9de/6ac2ce979c334a07b4f77c4068bf096d [2022-01-10 23:44:09,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:44:09,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:44:09,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:09,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:44:09,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:44:09,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:09" (1/1) ... [2022-01-10 23:44:09,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7dfafe29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:09, skipping insertion in model container [2022-01-10 23:44:09,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:44:09" (1/1) ... [2022-01-10 23:44:09,600 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:44:09,643 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:09,916 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_spec1_product19.cil.c[61467,61480] [2022-01-10 23:44:09,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:09,992 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:44:10,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:44:10,069 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_spec1_product19.cil.c[61467,61480] [2022-01-10 23:44:10,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:10,082 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:44:10,152 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_spec1_product19.cil.c[61467,61480] [2022-01-10 23:44:10,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:44:10,186 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:44:10,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10 WrapperNode [2022-01-10 23:44:10,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:44:10,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:10,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:44:10,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:44:10,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,373 INFO L137 Inliner]: procedures = 96, calls = 341, calls flagged for inlining = 194, calls inlined = 300, statements flattened = 9025 [2022-01-10 23:44:10,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:44:10,375 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:44:10,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:44:10,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:44:10,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,400 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:44:10,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:44:10,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:44:10,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:44:10,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (1/1) ... [2022-01-10 23:44:10,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:44:10,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:44:10,565 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 23:44:10,583 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 23:44:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:44:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:44:10,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:44:10,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:44:10,769 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:44:10,770 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:44:13,780 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:44:13,801 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:44:13,801 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:44:13,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:13 BoogieIcfgContainer [2022-01-10 23:44:13,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:44:13,806 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:44:13,807 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:44:13,808 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:44:13,809 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:13" (1/1) ... [2022-01-10 23:44:14,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:14 BasicIcfg [2022-01-10 23:44:14,391 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:44:14,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:44:14,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:44:14,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:44:14,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:44:09" (1/4) ... [2022-01-10 23:44:14,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bbad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:14, skipping insertion in model container [2022-01-10 23:44:14,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:44:10" (2/4) ... [2022-01-10 23:44:14,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bbad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:44:14, skipping insertion in model container [2022-01-10 23:44:14,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:44:13" (3/4) ... [2022-01-10 23:44:14,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75bbad21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:44:14, skipping insertion in model container [2022-01-10 23:44:14,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:44:14" (4/4) ... [2022-01-10 23:44:14,396 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec1_product19.cil.cTransformedIcfg [2022-01-10 23:44:14,399 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:44:14,399 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-10 23:44:14,433 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:44:14,437 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 23:44:14,437 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-10 23:44:14,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 2559 states, 2553 states have (on average 1.863689776733255) internal successors, (4758), 2558 states have internal predecessors, (4758), 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 23:44:14,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-10 23:44:14,483 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:14,484 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 23:44:14,484 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 23:44:14,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:14,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1493708224, now seen corresponding path program 1 times [2022-01-10 23:44:14,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:14,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719148088] [2022-01-10 23:44:14,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:14,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:14,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:14,777 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 23:44:14,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:14,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719148088] [2022-01-10 23:44:14,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719148088] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:14,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:14,778 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:14,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004677335] [2022-01-10 23:44:14,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:14,783 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:14,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:14,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:14,847 INFO L87 Difference]: Start difference. First operand has 2559 states, 2553 states have (on average 1.863689776733255) internal successors, (4758), 2558 states have internal predecessors, (4758), 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 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 23:44:15,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:15,210 INFO L93 Difference]: Finished difference Result 7582 states and 14114 transitions. [2022-01-10 23:44:15,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:15,213 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 23:44:15,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:15,246 INFO L225 Difference]: With dead ends: 7582 [2022-01-10 23:44:15,246 INFO L226 Difference]: Without dead ends: 5025 [2022-01-10 23:44:15,255 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 23:44:15,260 INFO L933 BasicCegarLoop]: 9351 mSDtfsCounter, 4719 mSDsluCounter, 4625 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4719 SdHoareTripleChecker+Valid, 13976 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:15,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4719 Valid, 13976 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:15,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5025 states. [2022-01-10 23:44:15,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5025 to 2548. [2022-01-10 23:44:15,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2543 states have (on average 1.8615808100668503) internal successors, (4734), 2547 states have internal predecessors, (4734), 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 23:44:15,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4734 transitions. [2022-01-10 23:44:15,384 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4734 transitions. Word has length 64 [2022-01-10 23:44:15,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:15,384 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 4734 transitions. [2022-01-10 23:44:15,385 INFO L471 AbstractCegarLoop]: INTERPOLANT 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) [2022-01-10 23:44:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4734 transitions. [2022-01-10 23:44:15,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-10 23:44:15,390 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:15,390 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:15,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:44:15,391 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 23:44:15,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:15,394 INFO L85 PathProgramCache]: Analyzing trace with hash -986926139, now seen corresponding path program 1 times [2022-01-10 23:44:15,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:15,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431357006] [2022-01-10 23:44:15,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:15,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:15,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:15,479 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 23:44:15,479 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:15,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431357006] [2022-01-10 23:44:15,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431357006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:15,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:15,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:15,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434257959] [2022-01-10 23:44:15,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:15,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:15,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:15,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:15,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:15,482 INFO L87 Difference]: Start difference. First operand 2548 states and 4734 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 23:44:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:15,656 INFO L93 Difference]: Finished difference Result 7487 states and 13922 transitions. [2022-01-10 23:44:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 71 [2022-01-10 23:44:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:15,673 INFO L225 Difference]: With dead ends: 7487 [2022-01-10 23:44:15,673 INFO L226 Difference]: Without dead ends: 4989 [2022-01-10 23:44:15,679 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 23:44:15,680 INFO L933 BasicCegarLoop]: 9214 mSDtfsCounter, 4621 mSDsluCounter, 4565 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4621 SdHoareTripleChecker+Valid, 13779 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:15,680 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4621 Valid, 13779 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:15,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4989 states. [2022-01-10 23:44:15,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4989 to 2548. [2022-01-10 23:44:15,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2543 states have (on average 1.8517499016909162) internal successors, (4709), 2547 states have internal predecessors, (4709), 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 23:44:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4709 transitions. [2022-01-10 23:44:15,736 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4709 transitions. Word has length 71 [2022-01-10 23:44:15,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:15,737 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 4709 transitions. [2022-01-10 23:44:15,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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 23:44:15,741 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4709 transitions. [2022-01-10 23:44:15,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-10 23:44:15,747 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:15,747 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:15,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:44:15,747 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 23:44:15,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:15,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1128754090, now seen corresponding path program 1 times [2022-01-10 23:44:15,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:15,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545063524] [2022-01-10 23:44:15,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:15,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:15,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:15,825 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 23:44:15,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:15,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545063524] [2022-01-10 23:44:15,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545063524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:15,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:15,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:15,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032916506] [2022-01-10 23:44:15,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:15,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:15,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:15,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:15,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:15,828 INFO L87 Difference]: Start difference. First operand 2548 states and 4709 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 23:44:15,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:15,891 INFO L93 Difference]: Finished difference Result 5025 states and 9320 transitions. [2022-01-10 23:44:15,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:15,892 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 74 [2022-01-10 23:44:15,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:15,901 INFO L225 Difference]: With dead ends: 5025 [2022-01-10 23:44:15,902 INFO L226 Difference]: Without dead ends: 2548 [2022-01-10 23:44:15,908 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 23:44:15,910 INFO L933 BasicCegarLoop]: 4690 mSDtfsCounter, 4698 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4698 SdHoareTripleChecker+Valid, 4697 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:15,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4698 Valid, 4697 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:15,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2022-01-10 23:44:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2548. [2022-01-10 23:44:15,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2543 states have (on average 1.8509634290208414) internal successors, (4707), 2547 states have internal predecessors, (4707), 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 23:44:15,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4707 transitions. [2022-01-10 23:44:15,957 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4707 transitions. Word has length 74 [2022-01-10 23:44:15,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:15,959 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 4707 transitions. [2022-01-10 23:44:15,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 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 23:44:15,959 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4707 transitions. [2022-01-10 23:44:15,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-10 23:44:15,961 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:15,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:15,962 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:44:15,962 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 23:44:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash 2061810044, now seen corresponding path program 1 times [2022-01-10 23:44:15,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:15,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685300144] [2022-01-10 23:44:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:15,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:16,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:16,049 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 23:44:16,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:16,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685300144] [2022-01-10 23:44:16,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685300144] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:16,050 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:16,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:16,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246921577] [2022-01-10 23:44:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:16,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:16,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:16,052 INFO L87 Difference]: Start difference. First operand 2548 states and 4707 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 23:44:16,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:16,176 INFO L93 Difference]: Finished difference Result 4989 states and 9247 transitions. [2022-01-10 23:44:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:16,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 76 [2022-01-10 23:44:16,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:16,186 INFO L225 Difference]: With dead ends: 4989 [2022-01-10 23:44:16,186 INFO L226 Difference]: Without dead ends: 2548 [2022-01-10 23:44:16,189 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 23:44:16,196 INFO L933 BasicCegarLoop]: 4612 mSDtfsCounter, 4679 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4679 SdHoareTripleChecker+Valid, 4627 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:16,196 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4679 Valid, 4627 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:16,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2548 states. [2022-01-10 23:44:16,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2548 to 2548. [2022-01-10 23:44:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2543 states have (on average 1.847031065670468) internal successors, (4697), 2547 states have internal predecessors, (4697), 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 23:44:16,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4697 transitions. [2022-01-10 23:44:16,246 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4697 transitions. Word has length 76 [2022-01-10 23:44:16,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:16,246 INFO L470 AbstractCegarLoop]: Abstraction has 2548 states and 4697 transitions. [2022-01-10 23:44:16,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 23:44:16,247 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4697 transitions. [2022-01-10 23:44:16,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-10 23:44:16,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:16,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:16,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:44:16,249 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 23:44:16,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:16,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1886431346, now seen corresponding path program 1 times [2022-01-10 23:44:16,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:16,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986511743] [2022-01-10 23:44:16,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:16,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:16,322 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 23:44:16,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:16,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986511743] [2022-01-10 23:44:16,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986511743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:16,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:16,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:16,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792239592] [2022-01-10 23:44:16,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:16,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:16,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:16,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:16,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:16,324 INFO L87 Difference]: Start difference. First operand 2548 states and 4697 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 23:44:16,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:16,482 INFO L93 Difference]: Finished difference Result 6288 states and 11646 transitions. [2022-01-10 23:44:16,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:16,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 78 [2022-01-10 23:44:16,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:16,498 INFO L225 Difference]: With dead ends: 6288 [2022-01-10 23:44:16,499 INFO L226 Difference]: Without dead ends: 5022 [2022-01-10 23:44:16,501 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 23:44:16,501 INFO L933 BasicCegarLoop]: 7004 mSDtfsCounter, 4675 mSDsluCounter, 4605 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4675 SdHoareTripleChecker+Valid, 11609 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:16,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4675 Valid, 11609 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:16,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5022 states. [2022-01-10 23:44:16,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5022 to 5022. [2022-01-10 23:44:16,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5022 states, 5017 states have (on average 1.8538967510464421) internal successors, (9301), 5021 states have internal predecessors, (9301), 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 23:44:16,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5022 states to 5022 states and 9301 transitions. [2022-01-10 23:44:16,598 INFO L78 Accepts]: Start accepts. Automaton has 5022 states and 9301 transitions. Word has length 78 [2022-01-10 23:44:16,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:16,599 INFO L470 AbstractCegarLoop]: Abstraction has 5022 states and 9301 transitions. [2022-01-10 23:44:16,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 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 23:44:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 5022 states and 9301 transitions. [2022-01-10 23:44:16,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 23:44:16,603 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:16,603 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:16,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:44:16,603 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:16,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:16,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1650155784, now seen corresponding path program 1 times [2022-01-10 23:44:16,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:16,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87393569] [2022-01-10 23:44:16,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:16,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:16,678 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 23:44:16,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:16,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87393569] [2022-01-10 23:44:16,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87393569] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:16,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:16,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:16,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014282205] [2022-01-10 23:44:16,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:16,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:44:16,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:16,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:44:16,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:44:16,680 INFO L87 Difference]: Start difference. First operand 5022 states and 9301 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 23:44:16,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:16,821 INFO L93 Difference]: Finished difference Result 12420 states and 23066 transitions. [2022-01-10 23:44:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:16,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2022-01-10 23:44:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:16,850 INFO L225 Difference]: With dead ends: 12420 [2022-01-10 23:44:16,850 INFO L226 Difference]: Without dead ends: 9912 [2022-01-10 23:44:16,856 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 23:44:16,857 INFO L933 BasicCegarLoop]: 4694 mSDtfsCounter, 4613 mSDsluCounter, 4608 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4613 SdHoareTripleChecker+Valid, 9302 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:16,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4613 Valid, 9302 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:16,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9912 states. [2022-01-10 23:44:17,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9912 to 9910. [2022-01-10 23:44:17,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9910 states, 9905 states have (on average 1.858354366481575) internal successors, (18407), 9909 states have internal predecessors, (18407), 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 23:44:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9910 states to 9910 states and 18407 transitions. [2022-01-10 23:44:17,061 INFO L78 Accepts]: Start accepts. Automaton has 9910 states and 18407 transitions. Word has length 79 [2022-01-10 23:44:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:17,062 INFO L470 AbstractCegarLoop]: Abstraction has 9910 states and 18407 transitions. [2022-01-10 23:44:17,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 23:44:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 9910 states and 18407 transitions. [2022-01-10 23:44:17,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-10 23:44:17,068 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:17,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:17,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:44:17,069 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 23:44:17,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:17,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1469800387, now seen corresponding path program 1 times [2022-01-10 23:44:17,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830739798] [2022-01-10 23:44:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:17,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:17,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:17,174 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 23:44:17,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:17,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830739798] [2022-01-10 23:44:17,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830739798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:17,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:17,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:17,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735022115] [2022-01-10 23:44:17,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:17,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:17,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:17,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:17,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:17,176 INFO L87 Difference]: Start difference. First operand 9910 states and 18407 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 23:44:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:18,328 INFO L93 Difference]: Finished difference Result 58676 states and 109237 transitions. [2022-01-10 23:44:18,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:44:18,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2022-01-10 23:44:18,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:18,444 INFO L225 Difference]: With dead ends: 58676 [2022-01-10 23:44:18,444 INFO L226 Difference]: Without dead ends: 48795 [2022-01-10 23:44:18,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:44:18,466 INFO L933 BasicCegarLoop]: 18335 mSDtfsCounter, 13792 mSDsluCounter, 22928 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13792 SdHoareTripleChecker+Valid, 41263 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:18,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13792 Valid, 41263 Invalid, 65 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [11 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:18,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48795 states. [2022-01-10 23:44:19,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48795 to 9898. [2022-01-10 23:44:19,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9898 states, 9893 states have (on average 1.858991205903164) internal successors, (18391), 9897 states have internal predecessors, (18391), 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 23:44:19,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9898 states to 9898 states and 18391 transitions. [2022-01-10 23:44:19,081 INFO L78 Accepts]: Start accepts. Automaton has 9898 states and 18391 transitions. Word has length 79 [2022-01-10 23:44:19,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:19,083 INFO L470 AbstractCegarLoop]: Abstraction has 9898 states and 18391 transitions. [2022-01-10 23:44:19,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 23:44:19,083 INFO L276 IsEmpty]: Start isEmpty. Operand 9898 states and 18391 transitions. [2022-01-10 23:44:19,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:44:19,090 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:19,090 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:19,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:44:19,090 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 23:44:19,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:19,091 INFO L85 PathProgramCache]: Analyzing trace with hash -728348711, now seen corresponding path program 1 times [2022-01-10 23:44:19,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:19,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512756022] [2022-01-10 23:44:19,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:19,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:19,181 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 23:44:19,181 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:19,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512756022] [2022-01-10 23:44:19,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512756022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:19,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:19,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:44:19,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851225907] [2022-01-10 23:44:19,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:19,182 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:44:19,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:19,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:44:19,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:44:19,183 INFO L87 Difference]: Start difference. First operand 9898 states and 18391 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 23:44:20,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:20,398 INFO L93 Difference]: Finished difference Result 48870 states and 90989 transitions. [2022-01-10 23:44:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:44:20,399 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 81 [2022-01-10 23:44:20,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:20,479 INFO L225 Difference]: With dead ends: 48870 [2022-01-10 23:44:20,479 INFO L226 Difference]: Without dead ends: 39001 [2022-01-10 23:44:20,495 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:44:20,496 INFO L933 BasicCegarLoop]: 18225 mSDtfsCounter, 27607 mSDsluCounter, 18195 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27607 SdHoareTripleChecker+Valid, 36420 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:20,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27607 Valid, 36420 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:20,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39001 states. [2022-01-10 23:44:20,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39001 to 9898. [2022-01-10 23:44:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9898 states, 9893 states have (on average 1.8572728191650663) internal successors, (18374), 9897 states have internal predecessors, (18374), 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 23:44:20,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9898 states to 9898 states and 18374 transitions. [2022-01-10 23:44:20,959 INFO L78 Accepts]: Start accepts. Automaton has 9898 states and 18374 transitions. Word has length 81 [2022-01-10 23:44:20,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:20,959 INFO L470 AbstractCegarLoop]: Abstraction has 9898 states and 18374 transitions. [2022-01-10 23:44:20,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 23:44:20,959 INFO L276 IsEmpty]: Start isEmpty. Operand 9898 states and 18374 transitions. [2022-01-10 23:44:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-10 23:44:20,964 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:20,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:20,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:44:20,965 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 23:44:20,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:20,965 INFO L85 PathProgramCache]: Analyzing trace with hash -829260678, now seen corresponding path program 1 times [2022-01-10 23:44:20,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:20,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943281750] [2022-01-10 23:44:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:20,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:20,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:21,028 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 23:44:21,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:21,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943281750] [2022-01-10 23:44:21,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943281750] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:21,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:21,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:44:21,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337393097] [2022-01-10 23:44:21,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:21,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:44:21,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:21,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:44:21,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:21,029 INFO L87 Difference]: Start difference. First operand 9898 states and 18374 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:44:22,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:22,255 INFO L93 Difference]: Finished difference Result 39304 states and 73077 transitions. [2022-01-10 23:44:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:44:22,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 81 [2022-01-10 23:44:22,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:22,432 INFO L225 Difference]: With dead ends: 39304 [2022-01-10 23:44:22,432 INFO L226 Difference]: Without dead ends: 29429 [2022-01-10 23:44:22,459 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 23:44:22,477 INFO L933 BasicCegarLoop]: 4682 mSDtfsCounter, 13829 mSDsluCounter, 13785 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13829 SdHoareTripleChecker+Valid, 18467 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:22,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13829 Valid, 18467 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:22,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29429 states. [2022-01-10 23:44:22,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29429 to 9906. [2022-01-10 23:44:22,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9906 states, 9901 states have (on average 1.8562771437228562) internal successors, (18379), 9905 states have internal predecessors, (18379), 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 23:44:22,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9906 states to 9906 states and 18379 transitions. [2022-01-10 23:44:22,945 INFO L78 Accepts]: Start accepts. Automaton has 9906 states and 18379 transitions. Word has length 81 [2022-01-10 23:44:22,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:22,945 INFO L470 AbstractCegarLoop]: Abstraction has 9906 states and 18379 transitions. [2022-01-10 23:44:22,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 23:44:22,945 INFO L276 IsEmpty]: Start isEmpty. Operand 9906 states and 18379 transitions. [2022-01-10 23:44:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-10 23:44:22,951 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:22,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:22,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:44:22,952 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 23:44:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1571518472, now seen corresponding path program 1 times [2022-01-10 23:44:22,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:22,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222117866] [2022-01-10 23:44:22,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:22,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:22,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:23,034 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 23:44:23,035 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:23,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222117866] [2022-01-10 23:44:23,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222117866] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:23,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:23,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:44:23,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597883349] [2022-01-10 23:44:23,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:23,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-10 23:44:23,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:23,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-10 23:44:23,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:44:23,036 INFO L87 Difference]: Start difference. First operand 9906 states and 18379 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 23:44:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:24,115 INFO L93 Difference]: Finished difference Result 48957 states and 91065 transitions. [2022-01-10 23:44:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:44:24,115 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 82 [2022-01-10 23:44:24,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:24,197 INFO L225 Difference]: With dead ends: 48957 [2022-01-10 23:44:24,197 INFO L226 Difference]: Without dead ends: 39067 [2022-01-10 23:44:24,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:44:24,223 INFO L933 BasicCegarLoop]: 18294 mSDtfsCounter, 22940 mSDsluCounter, 18273 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22940 SdHoareTripleChecker+Valid, 36567 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:24,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22940 Valid, 36567 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39067 states. [2022-01-10 23:44:24,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39067 to 9898. [2022-01-10 23:44:24,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9898 states, 9893 states have (on average 1.856464166582432) internal successors, (18366), 9897 states have internal predecessors, (18366), 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 23:44:24,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9898 states to 9898 states and 18366 transitions. [2022-01-10 23:44:24,808 INFO L78 Accepts]: Start accepts. Automaton has 9898 states and 18366 transitions. Word has length 82 [2022-01-10 23:44:24,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:24,808 INFO L470 AbstractCegarLoop]: Abstraction has 9898 states and 18366 transitions. [2022-01-10 23:44:24,808 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 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 23:44:24,809 INFO L276 IsEmpty]: Start isEmpty. Operand 9898 states and 18366 transitions. [2022-01-10 23:44:24,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-10 23:44:24,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:24,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:24,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:44:24,815 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:24,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:24,816 INFO L85 PathProgramCache]: Analyzing trace with hash 529019442, now seen corresponding path program 1 times [2022-01-10 23:44:24,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:24,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348686591] [2022-01-10 23:44:24,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:24,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:24,869 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 23:44:24,869 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:24,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348686591] [2022-01-10 23:44:24,870 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348686591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:24,870 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:24,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:24,870 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927634508] [2022-01-10 23:44:24,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:24,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:24,870 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:24,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:24,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:24,871 INFO L87 Difference]: Start difference. First operand 9898 states and 18366 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 23:44:25,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:25,911 INFO L93 Difference]: Finished difference Result 39109 states and 72748 transitions. [2022-01-10 23:44:25,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:44:25,912 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 83 [2022-01-10 23:44:25,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:25,956 INFO L225 Difference]: With dead ends: 39109 [2022-01-10 23:44:25,957 INFO L226 Difference]: Without dead ends: 29258 [2022-01-10 23:44:25,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:44:25,970 INFO L933 BasicCegarLoop]: 4620 mSDtfsCounter, 22938 mSDsluCounter, 13622 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22938 SdHoareTripleChecker+Valid, 18242 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:25,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22938 Valid, 18242 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:25,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29258 states. [2022-01-10 23:44:26,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29258 to 9924. [2022-01-10 23:44:26,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9924 states, 9919 states have (on average 1.8554289746950297) internal successors, (18404), 9923 states have internal predecessors, (18404), 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 23:44:26,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9924 states to 9924 states and 18404 transitions. [2022-01-10 23:44:26,378 INFO L78 Accepts]: Start accepts. Automaton has 9924 states and 18404 transitions. Word has length 83 [2022-01-10 23:44:26,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:26,378 INFO L470 AbstractCegarLoop]: Abstraction has 9924 states and 18404 transitions. [2022-01-10 23:44:26,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 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 23:44:26,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9924 states and 18404 transitions. [2022-01-10 23:44:26,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-01-10 23:44:26,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:26,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:26,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:44:26,385 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:26,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash 690344066, now seen corresponding path program 1 times [2022-01-10 23:44:26,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:26,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269435549] [2022-01-10 23:44:26,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:26,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:26,512 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 23:44:26,512 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:26,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269435549] [2022-01-10 23:44:26,512 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269435549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:26,512 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:26,512 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:44:26,512 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738977415] [2022-01-10 23:44:26,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:26,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:44:26,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:26,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:44:26,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:26,513 INFO L87 Difference]: Start difference. First operand 9924 states and 18404 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 23:44:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:27,103 INFO L93 Difference]: Finished difference Result 22096 states and 41065 transitions. [2022-01-10 23:44:27,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:44:27,104 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 85 [2022-01-10 23:44:27,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:27,124 INFO L225 Difference]: With dead ends: 22096 [2022-01-10 23:44:27,124 INFO L226 Difference]: Without dead ends: 14675 [2022-01-10 23:44:27,131 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:27,132 INFO L933 BasicCegarLoop]: 4613 mSDtfsCounter, 9136 mSDsluCounter, 4624 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9136 SdHoareTripleChecker+Valid, 9237 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:27,132 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9136 Valid, 9237 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:27,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14675 states. [2022-01-10 23:44:27,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14675 to 9844. [2022-01-10 23:44:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9844 states, 9839 states have (on average 1.8573025713995324) internal successors, (18274), 9843 states have internal predecessors, (18274), 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 23:44:27,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9844 states to 9844 states and 18274 transitions. [2022-01-10 23:44:27,593 INFO L78 Accepts]: Start accepts. Automaton has 9844 states and 18274 transitions. Word has length 85 [2022-01-10 23:44:27,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:27,593 INFO L470 AbstractCegarLoop]: Abstraction has 9844 states and 18274 transitions. [2022-01-10 23:44:27,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 23:44:27,594 INFO L276 IsEmpty]: Start isEmpty. Operand 9844 states and 18274 transitions. [2022-01-10 23:44:27,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-10 23:44:27,599 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:27,599 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:27,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:44:27,599 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:27,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:27,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1831049286, now seen corresponding path program 1 times [2022-01-10 23:44:27,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:27,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484548061] [2022-01-10 23:44:27,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:27,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:27,653 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 23:44:27,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:27,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484548061] [2022-01-10 23:44:27,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484548061] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:27,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:27,653 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:27,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896253261] [2022-01-10 23:44:27,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:27,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:27,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:27,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:27,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:27,655 INFO L87 Difference]: Start difference. First operand 9844 states and 18274 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 23:44:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:27,919 INFO L93 Difference]: Finished difference Result 14711 states and 27330 transitions. [2022-01-10 23:44:27,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:44:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 86 [2022-01-10 23:44:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:27,925 INFO L225 Difference]: With dead ends: 14711 [2022-01-10 23:44:27,925 INFO L226 Difference]: Without dead ends: 4968 [2022-01-10 23:44:27,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:27,930 INFO L933 BasicCegarLoop]: 4620 mSDtfsCounter, 13729 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13729 SdHoareTripleChecker+Valid, 4658 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:27,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13729 Valid, 4658 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:27,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4968 states. [2022-01-10 23:44:28,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4968 to 4968. [2022-01-10 23:44:28,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4968 states, 4964 states have (on average 1.8523368251410153) internal successors, (9195), 4967 states have internal predecessors, (9195), 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 23:44:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4968 states to 4968 states and 9195 transitions. [2022-01-10 23:44:28,115 INFO L78 Accepts]: Start accepts. Automaton has 4968 states and 9195 transitions. Word has length 86 [2022-01-10 23:44:28,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:28,116 INFO L470 AbstractCegarLoop]: Abstraction has 4968 states and 9195 transitions. [2022-01-10 23:44:28,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 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 23:44:28,116 INFO L276 IsEmpty]: Start isEmpty. Operand 4968 states and 9195 transitions. [2022-01-10 23:44:28,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 23:44:28,119 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:28,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:28,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:44:28,119 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:28,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:28,119 INFO L85 PathProgramCache]: Analyzing trace with hash -608324938, now seen corresponding path program 1 times [2022-01-10 23:44:28,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:28,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736867821] [2022-01-10 23:44:28,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:28,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:28,215 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 23:44:28,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:28,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736867821] [2022-01-10 23:44:28,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736867821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:28,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:28,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:44:28,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342945807] [2022-01-10 23:44:28,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:28,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:44:28,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:28,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:44:28,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:28,216 INFO L87 Difference]: Start difference. First operand 4968 states and 9195 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:44:28,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:28,465 INFO L93 Difference]: Finished difference Result 9823 states and 18233 transitions. [2022-01-10 23:44:28,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:44:28,465 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2022-01-10 23:44:28,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:28,471 INFO L225 Difference]: With dead ends: 9823 [2022-01-10 23:44:28,471 INFO L226 Difference]: Without dead ends: 4956 [2022-01-10 23:44:28,474 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 23:44:28,475 INFO L933 BasicCegarLoop]: 4603 mSDtfsCounter, 9126 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9126 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:28,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9126 Valid, 4692 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:28,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4956 states. [2022-01-10 23:44:28,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4956 to 4956. [2022-01-10 23:44:28,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4956 states, 4952 states have (on average 1.8527867528271404) internal successors, (9175), 4955 states have internal predecessors, (9175), 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 23:44:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4956 states to 4956 states and 9175 transitions. [2022-01-10 23:44:28,665 INFO L78 Accepts]: Start accepts. Automaton has 4956 states and 9175 transitions. Word has length 88 [2022-01-10 23:44:28,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:28,665 INFO L470 AbstractCegarLoop]: Abstraction has 4956 states and 9175 transitions. [2022-01-10 23:44:28,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 23:44:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4956 states and 9175 transitions. [2022-01-10 23:44:28,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 23:44:28,668 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:28,668 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:28,668 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:44:28,668 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:28,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:28,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1790119470, now seen corresponding path program 1 times [2022-01-10 23:44:28,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:28,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726724003] [2022-01-10 23:44:28,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:28,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:28,759 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 23:44:28,760 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:28,760 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726724003] [2022-01-10 23:44:28,760 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726724003] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:28,760 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:28,760 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:44:28,760 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397545716] [2022-01-10 23:44:28,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:28,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:44:28,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:28,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:44:28,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:44:28,761 INFO L87 Difference]: Start difference. First operand 4956 states and 9175 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 23:44:29,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:29,001 INFO L93 Difference]: Finished difference Result 9849 states and 18259 transitions. [2022-01-10 23:44:29,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:44:29,002 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2022-01-10 23:44:29,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:29,009 INFO L225 Difference]: With dead ends: 9849 [2022-01-10 23:44:29,009 INFO L226 Difference]: Without dead ends: 5018 [2022-01-10 23:44:29,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:44:29,014 INFO L933 BasicCegarLoop]: 4626 mSDtfsCounter, 13754 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13754 SdHoareTripleChecker+Valid, 4742 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:29,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13754 Valid, 4742 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:29,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5018 states. [2022-01-10 23:44:29,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5018 to 4956. [2022-01-10 23:44:29,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4956 states, 4952 states have (on average 1.8523828756058158) internal successors, (9173), 4955 states have internal predecessors, (9173), 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 23:44:29,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4956 states to 4956 states and 9173 transitions. [2022-01-10 23:44:29,262 INFO L78 Accepts]: Start accepts. Automaton has 4956 states and 9173 transitions. Word has length 88 [2022-01-10 23:44:29,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:29,262 INFO L470 AbstractCegarLoop]: Abstraction has 4956 states and 9173 transitions. [2022-01-10 23:44:29,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 23:44:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 4956 states and 9173 transitions. [2022-01-10 23:44:29,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-01-10 23:44:29,265 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:29,265 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:29,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:44:29,265 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:29,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:29,266 INFO L85 PathProgramCache]: Analyzing trace with hash 504966727, now seen corresponding path program 1 times [2022-01-10 23:44:29,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:29,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646703364] [2022-01-10 23:44:29,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:29,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:29,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:29,353 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 23:44:29,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:29,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646703364] [2022-01-10 23:44:29,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646703364] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:29,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:29,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:44:29,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978356814] [2022-01-10 23:44:29,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:29,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:44:29,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:29,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:44:29,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:44:29,356 INFO L87 Difference]: Start difference. First operand 4956 states and 9173 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 23:44:30,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:30,111 INFO L93 Difference]: Finished difference Result 19537 states and 36293 transitions. [2022-01-10 23:44:30,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:44:30,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 89 [2022-01-10 23:44:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:30,131 INFO L225 Difference]: With dead ends: 19537 [2022-01-10 23:44:30,131 INFO L226 Difference]: Without dead ends: 14706 [2022-01-10 23:44:30,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:44:30,139 INFO L933 BasicCegarLoop]: 9135 mSDtfsCounter, 27344 mSDsluCounter, 13723 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27344 SdHoareTripleChecker+Valid, 22858 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:30,139 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27344 Valid, 22858 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:30,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14706 states. [2022-01-10 23:44:30,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14706 to 4976. [2022-01-10 23:44:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4976 states, 4972 states have (on average 1.8505631536604987) internal successors, (9201), 4975 states have internal predecessors, (9201), 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 23:44:30,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4976 states to 4976 states and 9201 transitions. [2022-01-10 23:44:30,450 INFO L78 Accepts]: Start accepts. Automaton has 4976 states and 9201 transitions. Word has length 89 [2022-01-10 23:44:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:30,450 INFO L470 AbstractCegarLoop]: Abstraction has 4976 states and 9201 transitions. [2022-01-10 23:44:30,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 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 23:44:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 4976 states and 9201 transitions. [2022-01-10 23:44:30,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 23:44:30,453 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:30,453 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:30,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:44:30,453 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:30,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:30,454 INFO L85 PathProgramCache]: Analyzing trace with hash -970229458, now seen corresponding path program 1 times [2022-01-10 23:44:30,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:30,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605481510] [2022-01-10 23:44:30,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:30,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:30,516 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 23:44:30,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:30,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605481510] [2022-01-10 23:44:30,517 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605481510] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:30,517 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:30,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:30,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121465175] [2022-01-10 23:44:30,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:30,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:30,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:30,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:30,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:30,518 INFO L87 Difference]: Start difference. First operand 4976 states and 9201 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 23:44:30,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:30,778 INFO L93 Difference]: Finished difference Result 8732 states and 16146 transitions. [2022-01-10 23:44:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:44:30,779 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 90 [2022-01-10 23:44:30,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:30,785 INFO L225 Difference]: With dead ends: 8732 [2022-01-10 23:44:30,786 INFO L226 Difference]: Without dead ends: 5005 [2022-01-10 23:44:30,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:30,790 INFO L933 BasicCegarLoop]: 4577 mSDtfsCounter, 4633 mSDsluCounter, 9150 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4633 SdHoareTripleChecker+Valid, 13727 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:30,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4633 Valid, 13727 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:30,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5005 states. [2022-01-10 23:44:31,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5005 to 4973. [2022-01-10 23:44:31,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4969 states have (on average 1.8494666934996982) internal successors, (9190), 4972 states have internal predecessors, (9190), 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 23:44:31,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 9190 transitions. [2022-01-10 23:44:31,060 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 9190 transitions. Word has length 90 [2022-01-10 23:44:31,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:31,061 INFO L470 AbstractCegarLoop]: Abstraction has 4973 states and 9190 transitions. [2022-01-10 23:44:31,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 23:44:31,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 9190 transitions. [2022-01-10 23:44:31,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 23:44:31,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:31,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:31,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 23:44:31,064 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:31,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:31,064 INFO L85 PathProgramCache]: Analyzing trace with hash 218937359, now seen corresponding path program 1 times [2022-01-10 23:44:31,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:31,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349016929] [2022-01-10 23:44:31,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:31,064 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:31,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:31,111 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 23:44:31,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:31,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349016929] [2022-01-10 23:44:31,111 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349016929] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:31,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:31,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:31,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507888450] [2022-01-10 23:44:31,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:31,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:44:31,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:31,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:44:31,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:31,112 INFO L87 Difference]: Start difference. First operand 4973 states and 9190 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 23:44:31,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:31,973 INFO L93 Difference]: Finished difference Result 13909 states and 25808 transitions. [2022-01-10 23:44:31,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:44:31,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 91 [2022-01-10 23:44:31,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:31,987 INFO L225 Difference]: With dead ends: 13909 [2022-01-10 23:44:31,987 INFO L226 Difference]: Without dead ends: 9094 [2022-01-10 23:44:31,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:44:31,994 INFO L933 BasicCegarLoop]: 4634 mSDtfsCounter, 12128 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12128 SdHoareTripleChecker+Valid, 8529 SdHoareTripleChecker+Invalid, 639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 508 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:31,994 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12128 Valid, 8529 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:44:32,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9094 states. [2022-01-10 23:44:32,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9094 to 4973. [2022-01-10 23:44:32,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4973 states, 4969 states have (on average 1.8253169651841417) internal successors, (9070), 4972 states have internal predecessors, (9070), 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 23:44:32,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4973 states to 4973 states and 9070 transitions. [2022-01-10 23:44:32,310 INFO L78 Accepts]: Start accepts. Automaton has 4973 states and 9070 transitions. Word has length 91 [2022-01-10 23:44:32,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:32,310 INFO L470 AbstractCegarLoop]: Abstraction has 4973 states and 9070 transitions. [2022-01-10 23:44:32,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 3 states have internal predecessors, (91), 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 23:44:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 4973 states and 9070 transitions. [2022-01-10 23:44:32,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 23:44:32,313 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:32,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:32,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 23:44:32,314 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:32,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:32,314 INFO L85 PathProgramCache]: Analyzing trace with hash -83874191, now seen corresponding path program 1 times [2022-01-10 23:44:32,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:32,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315557556] [2022-01-10 23:44:32,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:32,314 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:32,374 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 23:44:32,374 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:32,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315557556] [2022-01-10 23:44:32,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315557556] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:32,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:32,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:32,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983364054] [2022-01-10 23:44:32,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:32,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:44:32,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:32,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:44:32,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:44:32,376 INFO L87 Difference]: Start difference. First operand 4973 states and 9070 transitions. Second operand has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 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 23:44:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:36,635 INFO L93 Difference]: Finished difference Result 52691 states and 97221 transitions. [2022-01-10 23:44:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-10 23:44:36,636 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 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 99 [2022-01-10 23:44:36,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:36,719 INFO L225 Difference]: With dead ends: 52691 [2022-01-10 23:44:36,719 INFO L226 Difference]: Without dead ends: 47912 [2022-01-10 23:44:36,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-10 23:44:36,739 INFO L933 BasicCegarLoop]: 20884 mSDtfsCounter, 29484 mSDsluCounter, 68078 mSDsCounter, 0 mSdLazyCounter, 2150 mSolverCounterSat, 143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29484 SdHoareTripleChecker+Valid, 88962 SdHoareTripleChecker+Invalid, 2293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 143 IncrementalHoareTripleChecker+Valid, 2150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:36,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29484 Valid, 88962 Invalid, 2293 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [143 Valid, 2150 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-01-10 23:44:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47912 states. [2022-01-10 23:44:37,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47912 to 9781. [2022-01-10 23:44:37,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9777 states have (on average 1.8299069244144421) internal successors, (17891), 9780 states have internal predecessors, (17891), 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 23:44:37,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 17891 transitions. [2022-01-10 23:44:37,621 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 17891 transitions. Word has length 99 [2022-01-10 23:44:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:37,622 INFO L470 AbstractCegarLoop]: Abstraction has 9781 states and 17891 transitions. [2022-01-10 23:44:37,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.5) internal successors, (99), 5 states have internal predecessors, (99), 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 23:44:37,622 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 17891 transitions. [2022-01-10 23:44:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 23:44:37,628 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:37,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:37,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 23:44:37,628 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:37,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 87851694, now seen corresponding path program 1 times [2022-01-10 23:44:37,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:37,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774737825] [2022-01-10 23:44:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:37,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:37,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:37,712 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 23:44:37,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:37,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774737825] [2022-01-10 23:44:37,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774737825] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:37,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:37,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:44:37,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262786370] [2022-01-10 23:44:37,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:37,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:44:37,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:37,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:44:37,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:44:37,713 INFO L87 Difference]: Start difference. First operand 9781 states and 17891 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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 23:44:40,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:40,006 INFO L93 Difference]: Finished difference Result 45793 states and 84069 transitions. [2022-01-10 23:44:40,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:44:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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 100 [2022-01-10 23:44:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:40,076 INFO L225 Difference]: With dead ends: 45793 [2022-01-10 23:44:40,076 INFO L226 Difference]: Without dead ends: 36206 [2022-01-10 23:44:40,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2022-01-10 23:44:40,109 INFO L933 BasicCegarLoop]: 15564 mSDtfsCounter, 26958 mSDsluCounter, 31419 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26958 SdHoareTripleChecker+Valid, 46983 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:40,109 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26958 Valid, 46983 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:40,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36206 states. [2022-01-10 23:44:40,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36206 to 9817. [2022-01-10 23:44:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9817 states, 9813 states have (on average 1.8277794762050341) internal successors, (17936), 9816 states have internal predecessors, (17936), 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 23:44:40,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9817 states to 9817 states and 17936 transitions. [2022-01-10 23:44:40,810 INFO L78 Accepts]: Start accepts. Automaton has 9817 states and 17936 transitions. Word has length 100 [2022-01-10 23:44:40,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:40,810 INFO L470 AbstractCegarLoop]: Abstraction has 9817 states and 17936 transitions. [2022-01-10 23:44:40,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 9 states have internal predecessors, (100), 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 23:44:40,810 INFO L276 IsEmpty]: Start isEmpty. Operand 9817 states and 17936 transitions. [2022-01-10 23:44:40,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:44:40,815 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:40,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:40,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 23:44:40,816 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:40,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1717805595, now seen corresponding path program 1 times [2022-01-10 23:44:40,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:40,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196377734] [2022-01-10 23:44:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:40,816 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:40,882 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 23:44:40,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:40,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196377734] [2022-01-10 23:44:40,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196377734] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:40,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:40,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:44:40,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517367111] [2022-01-10 23:44:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:40,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:40,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:40,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:40,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:40,883 INFO L87 Difference]: Start difference. First operand 9817 states and 17936 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 23:44:43,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:43,481 INFO L93 Difference]: Finished difference Result 38855 states and 71310 transitions. [2022-01-10 23:44:43,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 23:44:43,481 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 101 [2022-01-10 23:44:43,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:43,527 INFO L225 Difference]: With dead ends: 38855 [2022-01-10 23:44:43,528 INFO L226 Difference]: Without dead ends: 29406 [2022-01-10 23:44:43,542 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:44:43,544 INFO L933 BasicCegarLoop]: 10011 mSDtfsCounter, 16207 mSDsluCounter, 13203 mSDsCounter, 0 mSdLazyCounter, 927 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16207 SdHoareTripleChecker+Valid, 23214 SdHoareTripleChecker+Invalid, 1045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 927 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:43,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16207 Valid, 23214 Invalid, 1045 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 927 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:44:43,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29406 states. [2022-01-10 23:44:44,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29406 to 9841. [2022-01-10 23:44:44,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9841 states, 9837 states have (on average 1.8257598861441497) internal successors, (17960), 9840 states have internal predecessors, (17960), 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 23:44:44,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9841 states to 9841 states and 17960 transitions. [2022-01-10 23:44:44,302 INFO L78 Accepts]: Start accepts. Automaton has 9841 states and 17960 transitions. Word has length 101 [2022-01-10 23:44:44,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:44,303 INFO L470 AbstractCegarLoop]: Abstraction has 9841 states and 17960 transitions. [2022-01-10 23:44:44,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 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 23:44:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 9841 states and 17960 transitions. [2022-01-10 23:44:44,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:44:44,308 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:44,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:44,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 23:44:44,309 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:44,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:44,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1225011559, now seen corresponding path program 1 times [2022-01-10 23:44:44,324 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:44,324 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937260824] [2022-01-10 23:44:44,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:44,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:44,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:44,421 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 23:44:44,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:44,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937260824] [2022-01-10 23:44:44,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937260824] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:44,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:44,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:44:44,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947140236] [2022-01-10 23:44:44,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:44,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:44:44,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:44,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:44:44,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:44:44,423 INFO L87 Difference]: Start difference. First operand 9841 states and 17960 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 23:44:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:45,425 INFO L93 Difference]: Finished difference Result 24322 states and 44509 transitions. [2022-01-10 23:44:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-10 23:44:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 101 [2022-01-10 23:44:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:45,448 INFO L225 Difference]: With dead ends: 24322 [2022-01-10 23:44:45,448 INFO L226 Difference]: Without dead ends: 14579 [2022-01-10 23:44:45,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:44:45,459 INFO L933 BasicCegarLoop]: 6699 mSDtfsCounter, 13310 mSDsluCounter, 13535 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13310 SdHoareTripleChecker+Valid, 20234 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:45,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13310 Valid, 20234 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:45,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14579 states. [2022-01-10 23:44:46,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14579 to 9775. [2022-01-10 23:44:46,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9775 states, 9771 states have (on average 1.828369665336199) internal successors, (17865), 9774 states have internal predecessors, (17865), 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 23:44:46,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9775 states to 9775 states and 17865 transitions. [2022-01-10 23:44:46,116 INFO L78 Accepts]: Start accepts. Automaton has 9775 states and 17865 transitions. Word has length 101 [2022-01-10 23:44:46,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:46,116 INFO L470 AbstractCegarLoop]: Abstraction has 9775 states and 17865 transitions. [2022-01-10 23:44:46,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 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 23:44:46,116 INFO L276 IsEmpty]: Start isEmpty. Operand 9775 states and 17865 transitions. [2022-01-10 23:44:46,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 23:44:46,121 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:46,121 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:46,121 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 23:44:46,121 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:46,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:46,122 INFO L85 PathProgramCache]: Analyzing trace with hash 389045723, now seen corresponding path program 1 times [2022-01-10 23:44:46,122 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:46,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857923837] [2022-01-10 23:44:46,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:46,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:46,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:46,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:44:46,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:46,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857923837] [2022-01-10 23:44:46,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857923837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:46,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:46,162 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:44:46,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359221198] [2022-01-10 23:44:46,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:46,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:44:46,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:46,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:44:46,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:44:46,163 INFO L87 Difference]: Start difference. First operand 9775 states and 17865 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 23:44:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:48,411 INFO L93 Difference]: Finished difference Result 33719 states and 62015 transitions. [2022-01-10 23:44:48,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:44:48,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 102 [2022-01-10 23:44:48,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:48,446 INFO L225 Difference]: With dead ends: 33719 [2022-01-10 23:44:48,447 INFO L226 Difference]: Without dead ends: 24168 [2022-01-10 23:44:48,459 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:44:48,460 INFO L933 BasicCegarLoop]: 11216 mSDtfsCounter, 7537 mSDsluCounter, 9385 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7537 SdHoareTripleChecker+Valid, 20601 SdHoareTripleChecker+Invalid, 1145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:48,460 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7537 Valid, 20601 Invalid, 1145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 23:44:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24168 states. [2022-01-10 23:44:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24168 to 13411. [2022-01-10 23:44:49,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13411 states, 13407 states have (on average 1.8095770865965541) internal successors, (24261), 13410 states have internal predecessors, (24261), 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 23:44:49,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13411 states to 13411 states and 24261 transitions. [2022-01-10 23:44:49,412 INFO L78 Accepts]: Start accepts. Automaton has 13411 states and 24261 transitions. Word has length 102 [2022-01-10 23:44:49,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:49,412 INFO L470 AbstractCegarLoop]: Abstraction has 13411 states and 24261 transitions. [2022-01-10 23:44:49,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 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 23:44:49,413 INFO L276 IsEmpty]: Start isEmpty. Operand 13411 states and 24261 transitions. [2022-01-10 23:44:49,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 23:44:49,417 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:49,418 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:49,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 23:44:49,418 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:49,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1272706687, now seen corresponding path program 1 times [2022-01-10 23:44:49,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:49,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957477438] [2022-01-10 23:44:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:49,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:49,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:49,487 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 23:44:49,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:49,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957477438] [2022-01-10 23:44:49,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957477438] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:49,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:49,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:44:49,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081844867] [2022-01-10 23:44:49,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:49,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:44:49,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:49,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:44:49,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:44:49,490 INFO L87 Difference]: Start difference. First operand 13411 states and 24261 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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 23:44:51,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:51,627 INFO L93 Difference]: Finished difference Result 46453 states and 84231 transitions. [2022-01-10 23:44:51,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:44:51,627 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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 102 [2022-01-10 23:44:51,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:51,679 INFO L225 Difference]: With dead ends: 46453 [2022-01-10 23:44:51,679 INFO L226 Difference]: Without dead ends: 33204 [2022-01-10 23:44:51,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:44:51,767 INFO L933 BasicCegarLoop]: 12304 mSDtfsCounter, 24488 mSDsluCounter, 16551 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24488 SdHoareTripleChecker+Valid, 28855 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:51,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24488 Valid, 28855 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33204 states. [2022-01-10 23:44:52,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33204 to 13433. [2022-01-10 23:44:52,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13433 states, 13429 states have (on average 1.808697594757614) internal successors, (24289), 13432 states have internal predecessors, (24289), 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 23:44:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13433 states to 13433 states and 24289 transitions. [2022-01-10 23:44:52,688 INFO L78 Accepts]: Start accepts. Automaton has 13433 states and 24289 transitions. Word has length 102 [2022-01-10 23:44:52,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:52,688 INFO L470 AbstractCegarLoop]: Abstraction has 13433 states and 24289 transitions. [2022-01-10 23:44:52,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 7 states have internal predecessors, (102), 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 23:44:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 13433 states and 24289 transitions. [2022-01-10 23:44:52,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 23:44:52,693 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:52,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:52,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 23:44:52,693 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:52,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:52,693 INFO L85 PathProgramCache]: Analyzing trace with hash 121118520, now seen corresponding path program 1 times [2022-01-10 23:44:52,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:52,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32896253] [2022-01-10 23:44:52,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:52,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:52,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:52,754 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 23:44:52,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:52,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32896253] [2022-01-10 23:44:52,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32896253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:52,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:52,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:44:52,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628720503] [2022-01-10 23:44:52,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:52,754 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:44:52,754 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:52,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:44:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:44:52,755 INFO L87 Difference]: Start difference. First operand 13433 states and 24289 transitions. Second operand has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 23:44:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:53,307 INFO L93 Difference]: Finished difference Result 20012 states and 36237 transitions. [2022-01-10 23:44:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:44:53,308 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 103 [2022-01-10 23:44:53,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:53,316 INFO L225 Difference]: With dead ends: 20012 [2022-01-10 23:44:53,316 INFO L226 Difference]: Without dead ends: 6667 [2022-01-10 23:44:53,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:44:53,321 INFO L933 BasicCegarLoop]: 4107 mSDtfsCounter, 16364 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16364 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:53,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16364 Valid, 4161 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:44:53,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6667 states. [2022-01-10 23:44:53,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6667 to 6667. [2022-01-10 23:44:53,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6667 states, 6663 states have (on average 1.8089449197058383) internal successors, (12053), 6666 states have internal predecessors, (12053), 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 23:44:53,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6667 states to 6667 states and 12053 transitions. [2022-01-10 23:44:53,771 INFO L78 Accepts]: Start accepts. Automaton has 6667 states and 12053 transitions. Word has length 103 [2022-01-10 23:44:53,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:53,771 INFO L470 AbstractCegarLoop]: Abstraction has 6667 states and 12053 transitions. [2022-01-10 23:44:53,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.166666666666668) internal successors, (103), 6 states have internal predecessors, (103), 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 23:44:53,771 INFO L276 IsEmpty]: Start isEmpty. Operand 6667 states and 12053 transitions. [2022-01-10 23:44:53,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 23:44:53,773 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:53,782 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:53,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 23:44:53,782 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:53,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:53,783 INFO L85 PathProgramCache]: Analyzing trace with hash 594128649, now seen corresponding path program 1 times [2022-01-10 23:44:53,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:53,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297755042] [2022-01-10 23:44:53,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:53,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:53,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:53,834 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 23:44:53,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:53,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297755042] [2022-01-10 23:44:53,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297755042] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:53,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:53,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:44:53,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096275606] [2022-01-10 23:44:53,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:53,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:44:53,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:44:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:44:53,835 INFO L87 Difference]: Start difference. First operand 6667 states and 12053 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 23:44:56,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:56,700 INFO L93 Difference]: Finished difference Result 47847 states and 87163 transitions. [2022-01-10 23:44:56,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:44:56,701 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 104 [2022-01-10 23:44:56,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:56,764 INFO L225 Difference]: With dead ends: 47847 [2022-01-10 23:44:56,765 INFO L226 Difference]: Without dead ends: 41310 [2022-01-10 23:44:56,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:44:56,780 INFO L933 BasicCegarLoop]: 6681 mSDtfsCounter, 28592 mSDsluCounter, 19556 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28592 SdHoareTripleChecker+Valid, 26237 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:56,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28592 Valid, 26237 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:44:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41310 states. [2022-01-10 23:44:57,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41310 to 12241. [2022-01-10 23:44:57,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12241 states, 12237 states have (on average 1.8193184604069625) internal successors, (22263), 12240 states have internal predecessors, (22263), 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 23:44:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12241 states to 12241 states and 22263 transitions. [2022-01-10 23:44:57,855 INFO L78 Accepts]: Start accepts. Automaton has 12241 states and 22263 transitions. Word has length 104 [2022-01-10 23:44:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:44:57,855 INFO L470 AbstractCegarLoop]: Abstraction has 12241 states and 22263 transitions. [2022-01-10 23:44:57,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 4 states have internal predecessors, (104), 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 23:44:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 12241 states and 22263 transitions. [2022-01-10 23:44:57,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 23:44:57,857 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:44:57,857 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:44:57,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 23:44:57,858 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:44:57,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:44:57,858 INFO L85 PathProgramCache]: Analyzing trace with hash -2068034648, now seen corresponding path program 1 times [2022-01-10 23:44:57,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:44:57,858 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823230284] [2022-01-10 23:44:57,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:44:57,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:44:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:44:57,921 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 23:44:57,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:44:57,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823230284] [2022-01-10 23:44:57,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823230284] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:44:57,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:44:57,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:44:57,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523237596] [2022-01-10 23:44:57,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:44:57,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:44:57,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:44:57,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:44:57,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:44:57,922 INFO L87 Difference]: Start difference. First operand 12241 states and 22263 transitions. Second operand has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 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 23:44:59,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:44:59,521 INFO L93 Difference]: Finished difference Result 22075 states and 40023 transitions. [2022-01-10 23:44:59,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 23:44:59,522 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 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 104 [2022-01-10 23:44:59,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:44:59,552 INFO L225 Difference]: With dead ends: 22075 [2022-01-10 23:44:59,552 INFO L226 Difference]: Without dead ends: 16804 [2022-01-10 23:44:59,562 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 23:44:59,563 INFO L933 BasicCegarLoop]: 5667 mSDtfsCounter, 17279 mSDsluCounter, 7309 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17279 SdHoareTripleChecker+Valid, 12976 SdHoareTripleChecker+Invalid, 401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:44:59,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17279 Valid, 12976 Invalid, 401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:44:59,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16804 states. [2022-01-10 23:45:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16804 to 12221. [2022-01-10 23:45:00,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12221 states, 12217 states have (on average 1.8190226733240566) internal successors, (22223), 12220 states have internal predecessors, (22223), 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 23:45:00,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12221 states to 12221 states and 22223 transitions. [2022-01-10 23:45:00,538 INFO L78 Accepts]: Start accepts. Automaton has 12221 states and 22223 transitions. Word has length 104 [2022-01-10 23:45:00,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:00,538 INFO L470 AbstractCegarLoop]: Abstraction has 12221 states and 22223 transitions. [2022-01-10 23:45:00,539 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.333333333333332) internal successors, (104), 5 states have internal predecessors, (104), 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 23:45:00,539 INFO L276 IsEmpty]: Start isEmpty. Operand 12221 states and 22223 transitions. [2022-01-10 23:45:00,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 23:45:00,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:00,541 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:00,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 23:45:00,541 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:00,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:00,542 INFO L85 PathProgramCache]: Analyzing trace with hash 686797728, now seen corresponding path program 1 times [2022-01-10 23:45:00,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:00,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842085719] [2022-01-10 23:45:00,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:00,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:00,594 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 23:45:00,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:00,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842085719] [2022-01-10 23:45:00,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842085719] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:00,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:00,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:45:00,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078435654] [2022-01-10 23:45:00,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:00,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:45:00,595 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:00,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:45:00,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:45:00,596 INFO L87 Difference]: Start difference. First operand 12221 states and 22223 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 23:45:01,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:01,949 INFO L93 Difference]: Finished difference Result 21743 states and 39285 transitions. [2022-01-10 23:45:01,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:45:01,949 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 106 [2022-01-10 23:45:01,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:01,980 INFO L225 Difference]: With dead ends: 21743 [2022-01-10 23:45:01,980 INFO L226 Difference]: Without dead ends: 16658 [2022-01-10 23:45:01,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:45:01,991 INFO L933 BasicCegarLoop]: 5850 mSDtfsCounter, 4640 mSDsluCounter, 13879 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4640 SdHoareTripleChecker+Valid, 19729 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:01,992 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4640 Valid, 19729 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:45:02,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16658 states. [2022-01-10 23:45:02,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16658 to 12251. [2022-01-10 23:45:02,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12251 states, 12247 states have (on average 1.8170164121825754) internal successors, (22253), 12250 states have internal predecessors, (22253), 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 23:45:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12251 states to 12251 states and 22253 transitions. [2022-01-10 23:45:03,016 INFO L78 Accepts]: Start accepts. Automaton has 12251 states and 22253 transitions. Word has length 106 [2022-01-10 23:45:03,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:03,016 INFO L470 AbstractCegarLoop]: Abstraction has 12251 states and 22253 transitions. [2022-01-10 23:45:03,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 23:45:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 12251 states and 22253 transitions. [2022-01-10 23:45:03,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 23:45:03,019 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:03,019 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:03,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 23:45:03,020 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:03,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:03,035 INFO L85 PathProgramCache]: Analyzing trace with hash -798120902, now seen corresponding path program 1 times [2022-01-10 23:45:03,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:03,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822836512] [2022-01-10 23:45:03,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:03,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:03,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:03,142 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 23:45:03,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:03,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822836512] [2022-01-10 23:45:03,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822836512] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:03,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:03,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:03,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797789906] [2022-01-10 23:45:03,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:03,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:03,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:03,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:03,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:03,144 INFO L87 Difference]: Start difference. First operand 12251 states and 22253 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:04,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:04,829 INFO L93 Difference]: Finished difference Result 25403 states and 46235 transitions. [2022-01-10 23:45:04,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:04,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 23:45:04,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:04,853 INFO L225 Difference]: With dead ends: 25403 [2022-01-10 23:45:04,853 INFO L226 Difference]: Without dead ends: 16218 [2022-01-10 23:45:04,864 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 23:45:04,865 INFO L933 BasicCegarLoop]: 3883 mSDtfsCounter, 2381 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2381 SdHoareTripleChecker+Valid, 7402 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:04,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2381 Valid, 7402 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:45:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16218 states. [2022-01-10 23:45:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16218 to 12251. [2022-01-10 23:45:05,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12251 states, 12247 states have (on average 1.8091777578182413) internal successors, (22157), 12250 states have internal predecessors, (22157), 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 23:45:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12251 states to 12251 states and 22157 transitions. [2022-01-10 23:45:05,956 INFO L78 Accepts]: Start accepts. Automaton has 12251 states and 22157 transitions. Word has length 114 [2022-01-10 23:45:05,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:05,957 INFO L470 AbstractCegarLoop]: Abstraction has 12251 states and 22157 transitions. [2022-01-10 23:45:05,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:05,957 INFO L276 IsEmpty]: Start isEmpty. Operand 12251 states and 22157 transitions. [2022-01-10 23:45:05,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-10 23:45:05,960 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:05,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:05,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 23:45:05,961 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:05,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:05,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1226980094, now seen corresponding path program 1 times [2022-01-10 23:45:05,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:05,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073957711] [2022-01-10 23:45:05,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:05,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:06,031 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 23:45:06,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:06,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073957711] [2022-01-10 23:45:06,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073957711] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:06,031 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:06,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:45:06,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768126] [2022-01-10 23:45:06,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:06,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:06,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:06,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:06,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:06,033 INFO L87 Difference]: Start difference. First operand 12251 states and 22157 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:07,775 INFO L93 Difference]: Finished difference Result 32311 states and 58515 transitions. [2022-01-10 23:45:07,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:07,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-10 23:45:07,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:07,803 INFO L225 Difference]: With dead ends: 32311 [2022-01-10 23:45:07,803 INFO L226 Difference]: Without dead ends: 23214 [2022-01-10 23:45:07,809 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 23:45:07,810 INFO L933 BasicCegarLoop]: 4076 mSDtfsCounter, 3977 mSDsluCounter, 3245 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3977 SdHoareTripleChecker+Valid, 7321 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:07,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3977 Valid, 7321 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:07,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23214 states. [2022-01-10 23:45:09,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23214 to 23195. [2022-01-10 23:45:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23195 states, 23191 states have (on average 1.8149713250830064) internal successors, (42091), 23194 states have internal predecessors, (42091), 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 23:45:09,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23195 states to 23195 states and 42091 transitions. [2022-01-10 23:45:09,515 INFO L78 Accepts]: Start accepts. Automaton has 23195 states and 42091 transitions. Word has length 114 [2022-01-10 23:45:09,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:09,515 INFO L470 AbstractCegarLoop]: Abstraction has 23195 states and 42091 transitions. [2022-01-10 23:45:09,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 2 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:09,516 INFO L276 IsEmpty]: Start isEmpty. Operand 23195 states and 42091 transitions. [2022-01-10 23:45:09,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 23:45:09,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:09,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:09,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-10 23:45:09,520 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:09,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:09,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1467828304, now seen corresponding path program 1 times [2022-01-10 23:45:09,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:09,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712578798] [2022-01-10 23:45:09,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:09,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:09,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:09,569 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 23:45:09,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:09,569 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712578798] [2022-01-10 23:45:09,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712578798] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:09,569 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:09,569 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:45:09,569 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992175808] [2022-01-10 23:45:09,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:09,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:09,570 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:09,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:09,570 INFO L87 Difference]: Start difference. First operand 23195 states and 42091 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:12,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:45:12,224 INFO L93 Difference]: Finished difference Result 43203 states and 77939 transitions. [2022-01-10 23:45:12,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:45:12,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-10 23:45:12,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:45:12,265 INFO L225 Difference]: With dead ends: 43203 [2022-01-10 23:45:12,265 INFO L226 Difference]: Without dead ends: 33136 [2022-01-10 23:45:12,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 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 23:45:12,274 INFO L933 BasicCegarLoop]: 4064 mSDtfsCounter, 3955 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3955 SdHoareTripleChecker+Valid, 6248 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:45:12,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3955 Valid, 6248 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:45:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33136 states. [2022-01-10 23:45:14,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33136 to 33069. [2022-01-10 23:45:14,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33069 states, 33065 states have (on average 1.8077423257220626) internal successors, (59773), 33068 states have internal predecessors, (59773), 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 23:45:14,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33069 states to 33069 states and 59773 transitions. [2022-01-10 23:45:14,976 INFO L78 Accepts]: Start accepts. Automaton has 33069 states and 59773 transitions. Word has length 115 [2022-01-10 23:45:14,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:45:14,976 INFO L470 AbstractCegarLoop]: Abstraction has 33069 states and 59773 transitions. [2022-01-10 23:45:14,976 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:45:14,976 INFO L276 IsEmpty]: Start isEmpty. Operand 33069 states and 59773 transitions. [2022-01-10 23:45:14,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 23:45:14,981 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:45:14,981 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:45:14,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-10 23:45:14,981 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-10 23:45:14,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:45:14,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1687246112, now seen corresponding path program 1 times [2022-01-10 23:45:14,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:45:14,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808987776] [2022-01-10 23:45:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:45:14,982 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:45:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:45:15,027 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 23:45:15,027 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:45:15,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808987776] [2022-01-10 23:45:15,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808987776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:45:15,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:45:15,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:45:15,028 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369387691] [2022-01-10 23:45:15,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:45:15,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:45:15,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:45:15,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:45:15,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:45:15,029 INFO L87 Difference]: Start difference. First operand 33069 states and 59773 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)