/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_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:33:09,897 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:33:09,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:33:09,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:33:09,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:33:09,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:33:09,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:33:09,968 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:33:09,969 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:33:09,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:33:09,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:33:09,971 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:33:09,971 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:33:09,972 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:33:09,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:33:09,973 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:33:09,974 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:33:09,974 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:33:09,975 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:33:09,976 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:33:09,977 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:33:09,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:33:09,978 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:33:09,979 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:33:09,981 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:33:09,981 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:33:09,981 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:33:09,981 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:33:09,982 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:33:09,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:33:09,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:33:09,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:33:09,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:33:09,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:33:09,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:33:09,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:33:09,985 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:33:09,985 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:33:09,985 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:33:09,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:33:09,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:33:09,987 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:33:10,000 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:33:10,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:33:10,000 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:33:10,000 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:33:10,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:33:10,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:33:10,001 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:33:10,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:33:10,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:33:10,003 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:33:10,003 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:33:10,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:33:10,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:33:10,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:33:10,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:33:10,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:33:10,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:10,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:33:10,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:33:10,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:33:10,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:33:10,005 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:33:10,006 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:33:10,006 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:33:10,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:33:10,223 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:33:10,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:33:10,225 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:33:10,226 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:33:10,227 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2022-01-11 05:33:10,291 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20d6723e/15ac42a5e1e341d5aa36181df865ae22/FLAG34261659a [2022-01-11 05:33:10,679 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:33:10,679 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c [2022-01-11 05:33:10,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20d6723e/15ac42a5e1e341d5aa36181df865ae22/FLAG34261659a [2022-01-11 05:33:11,020 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b20d6723e/15ac42a5e1e341d5aa36181df865ae22 [2022-01-11 05:33:11,022 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:33:11,023 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:33:11,024 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:11,024 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:33:11,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:33:11,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c1afddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11, skipping insertion in model container [2022-01-11 05:33:11,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,032 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:33:11,102 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:11,233 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-11 05:33:11,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,510 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:33:11,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:33:11,535 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-11 05:33:11,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,660 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:33:11,668 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/elevator_spec2_product11.cil.c[1545,1558] [2022-01-11 05:33:11,718 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:33:11,736 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:33:11,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11 WrapperNode [2022-01-11 05:33:11,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:33:11,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:11,738 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:33:11,738 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:33:11,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,762 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,846 INFO L137 Inliner]: procedures = 95, calls = 338, calls flagged for inlining = 191, calls inlined = 282, statements flattened = 8634 [2022-01-11 05:33:11,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:33:11,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:33:11,848 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:33:11,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:33:11,853 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,864 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,864 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,907 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:33:11,991 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:33:11,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:33:11,993 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:33:11,994 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (1/1) ... [2022-01-11 05:33:11,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:33:12,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:33:12,016 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) [2022-01-11 05:33:12,031 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 [2022-01-11 05:33:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:33:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:33:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:33:12,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:33:12,171 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:33:12,172 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:33:15,469 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:33:15,487 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:33:15,487 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:33:15,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15 BoogieIcfgContainer [2022-01-11 05:33:15,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:33:15,491 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:33:15,491 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:33:15,492 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:33:15,494 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15" (1/1) ... [2022-01-11 05:33:16,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:16 BasicIcfg [2022-01-11 05:33:16,045 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:33:16,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:33:16,048 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:33:16,049 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:33:16,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:33:11" (1/4) ... [2022-01-11 05:33:16,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afd99c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:33:11" (2/4) ... [2022-01-11 05:33:16,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afd99c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:33:15" (3/4) ... [2022-01-11 05:33:16,051 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3afd99c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:33:16, skipping insertion in model container [2022-01-11 05:33:16,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:33:16" (4/4) ... [2022-01-11 05:33:16,052 INFO L111 eAbstractionObserver]: Analyzing ICFG elevator_spec2_product11.cil.cTransformedIcfg [2022-01-11 05:33:16,055 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:33:16,055 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2022-01-11 05:33:16,101 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:33:16,105 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 [2022-01-11 05:33:16,105 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-11 05:33:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand has 2484 states, 2478 states have (on average 1.8672316384180792) internal successors, (4627), 2483 states have internal predecessors, (4627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:33:16,163 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:16,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:16,164 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)] === [2022-01-11 05:33:16,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:16,168 INFO L85 PathProgramCache]: Analyzing trace with hash -56420824, now seen corresponding path program 1 times [2022-01-11 05:33:16,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:16,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748171223] [2022-01-11 05:33:16,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:16,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:16,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:16,445 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:16,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748171223] [2022-01-11 05:33:16,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748171223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:16,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:16,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:16,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717071685] [2022-01-11 05:33:16,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:16,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:16,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:16,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:16,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:16,472 INFO L87 Difference]: Start difference. First operand has 2484 states, 2478 states have (on average 1.8672316384180792) internal successors, (4627), 2483 states have internal predecessors, (4627), 0 states have call successors, (0), 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 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:16,667 INFO L93 Difference]: Finished difference Result 4953 states and 9231 transitions. [2022-01-11 05:33:16,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:16,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:33:16,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:16,694 INFO L225 Difference]: With dead ends: 4953 [2022-01-11 05:33:16,694 INFO L226 Difference]: Without dead ends: 2473 [2022-01-11 05:33:16,702 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 [2022-01-11 05:33:16,709 INFO L933 BasicCegarLoop]: 4606 mSDtfsCounter, 4601 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4601 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:16,710 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4601 Valid, 4617 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:16,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-11 05:33:16,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-11 05:33:16,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8650729335494327) internal successors, (4603), 2472 states have internal predecessors, (4603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4603 transitions. [2022-01-11 05:33:16,846 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4603 transitions. Word has length 51 [2022-01-11 05:33:16,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:16,846 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4603 transitions. [2022-01-11 05:33:16,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 3 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:16,847 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4603 transitions. [2022-01-11 05:33:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:16,848 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:16,848 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:16,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:33:16,849 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)] === [2022-01-11 05:33:16,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:16,850 INFO L85 PathProgramCache]: Analyzing trace with hash -51954454, now seen corresponding path program 1 times [2022-01-11 05:33:16,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:16,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653663117] [2022-01-11 05:33:16,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:16,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653663117] [2022-01-11 05:33:17,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653663117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:33:17,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367912923] [2022-01-11 05:33:17,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:33:17,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:33:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:33:17,014 INFO L87 Difference]: Start difference. First operand 2473 states and 4603 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:17,214 INFO L93 Difference]: Finished difference Result 4932 states and 9191 transitions. [2022-01-11 05:33:17,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:17,214 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:33:17,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:17,224 INFO L225 Difference]: With dead ends: 4932 [2022-01-11 05:33:17,224 INFO L226 Difference]: Without dead ends: 2473 [2022-01-11 05:33:17,227 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 [2022-01-11 05:33:17,228 INFO L933 BasicCegarLoop]: 4596 mSDtfsCounter, 18374 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18374 SdHoareTripleChecker+Valid, 4603 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:17,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18374 Valid, 4603 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:17,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-11 05:33:17,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-11 05:33:17,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8646677471636952) internal successors, (4602), 2472 states have internal predecessors, (4602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4602 transitions. [2022-01-11 05:33:17,286 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4602 transitions. Word has length 58 [2022-01-11 05:33:17,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,288 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4602 transitions. [2022-01-11 05:33:17,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4602 transitions. [2022-01-11 05:33:17,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:33:17,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:33:17,299 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)] === [2022-01-11 05:33:17,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1648786025, now seen corresponding path program 1 times [2022-01-11 05:33:17,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587729001] [2022-01-11 05:33:17,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587729001] [2022-01-11 05:33:17,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587729001] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:17,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541826204] [2022-01-11 05:33:17,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:17,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,372 INFO L87 Difference]: Start difference. First operand 2473 states and 4602 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:17,476 INFO L93 Difference]: Finished difference Result 4896 states and 9119 transitions. [2022-01-11 05:33:17,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:17,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:33:17,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:17,485 INFO L225 Difference]: With dead ends: 4896 [2022-01-11 05:33:17,485 INFO L226 Difference]: Without dead ends: 2473 [2022-01-11 05:33:17,488 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 [2022-01-11 05:33:17,489 INFO L933 BasicCegarLoop]: 4542 mSDtfsCounter, 4561 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4561 SdHoareTripleChecker+Valid, 4556 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:17,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4561 Valid, 4556 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:17,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2473 states. [2022-01-11 05:33:17,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2473 to 2473. [2022-01-11 05:33:17,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2473 states, 2468 states have (on average 1.8545380875202593) internal successors, (4577), 2472 states have internal predecessors, (4577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 4577 transitions. [2022-01-11 05:33:17,548 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 4577 transitions. Word has length 58 [2022-01-11 05:33:17,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,549 INFO L470 AbstractCegarLoop]: Abstraction has 2473 states and 4577 transitions. [2022-01-11 05:33:17,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 4577 transitions. [2022-01-11 05:33:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-01-11 05:33:17,551 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:33:17,552 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)] === [2022-01-11 05:33:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,552 INFO L85 PathProgramCache]: Analyzing trace with hash 667890762, now seen corresponding path program 1 times [2022-01-11 05:33:17,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404935955] [2022-01-11 05:33:17,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:17,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:17,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:17,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404935955] [2022-01-11 05:33:17,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404935955] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:17,653 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:17,654 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:17,654 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020268319] [2022-01-11 05:33:17,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:17,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:17,654 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:17,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:17,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:17,655 INFO L87 Difference]: Start difference. First operand 2473 states and 4577 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:17,825 INFO L93 Difference]: Finished difference Result 5547 states and 10316 transitions. [2022-01-11 05:33:17,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:17,826 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2022-01-11 05:33:17,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:17,842 INFO L225 Difference]: With dead ends: 5547 [2022-01-11 05:33:17,842 INFO L226 Difference]: Without dead ends: 4287 [2022-01-11 05:33:17,844 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 [2022-01-11 05:33:17,851 INFO L933 BasicCegarLoop]: 4874 mSDtfsCounter, 4511 mSDsluCounter, 3391 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4511 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:17,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4511 Valid, 8265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:17,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2022-01-11 05:33:17,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 4287. [2022-01-11 05:33:17,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4287 states, 4282 states have (on average 1.8629145259224662) internal successors, (7977), 4286 states have internal predecessors, (7977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4287 states to 4287 states and 7977 transitions. [2022-01-11 05:33:17,967 INFO L78 Accepts]: Start accepts. Automaton has 4287 states and 7977 transitions. Word has length 61 [2022-01-11 05:33:17,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:17,968 INFO L470 AbstractCegarLoop]: Abstraction has 4287 states and 7977 transitions. [2022-01-11 05:33:17,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:17,968 INFO L276 IsEmpty]: Start isEmpty. Operand 4287 states and 7977 transitions. [2022-01-11 05:33:17,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-01-11 05:33:17,971 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:17,971 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:17,972 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:33:17,972 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:17,974 INFO L85 PathProgramCache]: Analyzing trace with hash -1406012166, now seen corresponding path program 1 times [2022-01-11 05:33:17,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:17,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993013231] [2022-01-11 05:33:17,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:17,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:18,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:18,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:18,090 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:18,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993013231] [2022-01-11 05:33:18,090 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993013231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:18,090 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:18,090 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:18,090 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498371890] [2022-01-11 05:33:18,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:18,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:18,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:18,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:18,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:18,092 INFO L87 Difference]: Start difference. First operand 4287 states and 7977 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:18,288 INFO L93 Difference]: Finished difference Result 10302 states and 19212 transitions. [2022-01-11 05:33:18,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:18,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-01-11 05:33:18,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:18,317 INFO L225 Difference]: With dead ends: 10302 [2022-01-11 05:33:18,317 INFO L226 Difference]: Without dead ends: 7806 [2022-01-11 05:33:18,324 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 [2022-01-11 05:33:18,325 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4510 mSDsluCounter, 3394 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4510 SdHoareTripleChecker+Valid, 7968 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:18,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4510 Valid, 7968 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:18,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7806 states. [2022-01-11 05:33:18,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7806 to 7804. [2022-01-11 05:33:18,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7804 states, 7799 states have (on average 1.867547121425824) internal successors, (14565), 7803 states have internal predecessors, (14565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7804 states to 7804 states and 14565 transitions. [2022-01-11 05:33:18,573 INFO L78 Accepts]: Start accepts. Automaton has 7804 states and 14565 transitions. Word has length 63 [2022-01-11 05:33:18,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:18,575 INFO L470 AbstractCegarLoop]: Abstraction has 7804 states and 14565 transitions. [2022-01-11 05:33:18,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,576 INFO L276 IsEmpty]: Start isEmpty. Operand 7804 states and 14565 transitions. [2022-01-11 05:33:18,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-01-11 05:33:18,578 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:18,578 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] [2022-01-11 05:33:18,578 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:33:18,578 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:18,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:18,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1044929672, now seen corresponding path program 1 times [2022-01-11 05:33:18,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:18,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303746238] [2022-01-11 05:33:18,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:18,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:18,644 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:18,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303746238] [2022-01-11 05:33:18,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303746238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:18,644 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:18,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:18,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226595124] [2022-01-11 05:33:18,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:18,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:18,644 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:18,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:18,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:18,645 INFO L87 Difference]: Start difference. First operand 7804 states and 14565 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:18,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:18,897 INFO L93 Difference]: Finished difference Result 19578 states and 36561 transitions. [2022-01-11 05:33:18,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:18,898 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 [2022-01-11 05:33:18,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:18,934 INFO L225 Difference]: With dead ends: 19578 [2022-01-11 05:33:18,935 INFO L226 Difference]: Without dead ends: 14619 [2022-01-11 05:33:18,947 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 [2022-01-11 05:33:18,947 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4498 mSDsluCounter, 3397 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4498 SdHoareTripleChecker+Valid, 7971 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:18,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4498 Valid, 7971 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:18,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14619 states. [2022-01-11 05:33:19,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14619 to 14615. [2022-01-11 05:33:19,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14615 states, 14610 states have (on average 1.8696098562628336) internal successors, (27315), 14614 states have internal predecessors, (27315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14615 states to 14615 states and 27315 transitions. [2022-01-11 05:33:19,296 INFO L78 Accepts]: Start accepts. Automaton has 14615 states and 27315 transitions. Word has length 64 [2022-01-11 05:33:19,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:19,296 INFO L470 AbstractCegarLoop]: Abstraction has 14615 states and 27315 transitions. [2022-01-11 05:33:19,296 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) [2022-01-11 05:33:19,296 INFO L276 IsEmpty]: Start isEmpty. Operand 14615 states and 27315 transitions. [2022-01-11 05:33:19,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-01-11 05:33:19,298 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:19,299 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] [2022-01-11 05:33:19,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:33:19,299 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:19,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:19,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1966932901, now seen corresponding path program 1 times [2022-01-11 05:33:19,299 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:19,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849901895] [2022-01-11 05:33:19,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:19,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:19,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:19,379 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:19,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849901895] [2022-01-11 05:33:19,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849901895] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:19,379 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:19,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:19,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939151833] [2022-01-11 05:33:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:19,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:19,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:19,381 INFO L87 Difference]: Start difference. First operand 14615 states and 27315 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:19,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:19,772 INFO L93 Difference]: Finished difference Result 37662 states and 70370 transitions. [2022-01-11 05:33:19,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:19,772 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2022-01-11 05:33:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:19,834 INFO L225 Difference]: With dead ends: 37662 [2022-01-11 05:33:19,834 INFO L226 Difference]: Without dead ends: 27796 [2022-01-11 05:33:19,851 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 [2022-01-11 05:33:19,853 INFO L933 BasicCegarLoop]: 4574 mSDtfsCounter, 4497 mSDsluCounter, 3400 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 7974 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:19,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4497 Valid, 7974 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:19,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27796 states. [2022-01-11 05:33:20,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27796 to 27790. [2022-01-11 05:33:20,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27790 states, 27785 states have (on average 1.8701097714594206) internal successors, (51961), 27789 states have internal predecessors, (51961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27790 states to 27790 states and 51961 transitions. [2022-01-11 05:33:20,383 INFO L78 Accepts]: Start accepts. Automaton has 27790 states and 51961 transitions. Word has length 65 [2022-01-11 05:33:20,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:20,384 INFO L470 AbstractCegarLoop]: Abstraction has 27790 states and 51961 transitions. [2022-01-11 05:33:20,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:20,384 INFO L276 IsEmpty]: Start isEmpty. Operand 27790 states and 51961 transitions. [2022-01-11 05:33:20,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-01-11 05:33:20,387 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:20,387 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] [2022-01-11 05:33:20,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:33:20,387 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:20,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:20,388 INFO L85 PathProgramCache]: Analyzing trace with hash 845392217, now seen corresponding path program 1 times [2022-01-11 05:33:20,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:20,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80821472] [2022-01-11 05:33:20,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:20,388 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:20,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:20,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:20,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80821472] [2022-01-11 05:33:20,459 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80821472] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:20,459 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:20,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:20,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953049622] [2022-01-11 05:33:20,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:20,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:20,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:20,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:20,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:20,461 INFO L87 Difference]: Start difference. First operand 27790 states and 51961 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:21,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:21,195 INFO L93 Difference]: Finished difference Result 72894 states and 136206 transitions. [2022-01-11 05:33:21,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:21,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2022-01-11 05:33:21,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:21,350 INFO L225 Difference]: With dead ends: 72894 [2022-01-11 05:33:21,350 INFO L226 Difference]: Without dead ends: 53246 [2022-01-11 05:33:21,397 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 [2022-01-11 05:33:21,398 INFO L933 BasicCegarLoop]: 4575 mSDtfsCounter, 4496 mSDsluCounter, 3403 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4496 SdHoareTripleChecker+Valid, 7978 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:21,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4496 Valid, 7978 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:21,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53246 states. [2022-01-11 05:33:22,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53246 to 53238. [2022-01-11 05:33:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.8696860969699247) internal successors, (99529), 53237 states have internal predecessors, (99529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:22,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 99529 transitions. [2022-01-11 05:33:22,771 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 99529 transitions. Word has length 66 [2022-01-11 05:33:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:22,771 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 99529 transitions. [2022-01-11 05:33:22,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:22,772 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 99529 transitions. [2022-01-11 05:33:22,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 05:33:22,791 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:22,791 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] [2022-01-11 05:33:22,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:33:22,791 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)] === [2022-01-11 05:33:22,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:22,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1259719586, now seen corresponding path program 1 times [2022-01-11 05:33:22,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:22,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644915100] [2022-01-11 05:33:22,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:22,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:22,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:22,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:22,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:22,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644915100] [2022-01-11 05:33:22,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644915100] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:22,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:22,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:22,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384277959] [2022-01-11 05:33:22,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:22,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:22,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:22,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:22,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:22,850 INFO L87 Difference]: Start difference. First operand 53238 states and 99529 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:24,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:24,534 INFO L93 Difference]: Finished difference Result 108579 states and 202962 transitions. [2022-01-11 05:33:24,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:24,535 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 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 105 [2022-01-11 05:33:24,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:24,685 INFO L225 Difference]: With dead ends: 108579 [2022-01-11 05:33:24,685 INFO L226 Difference]: Without dead ends: 56288 [2022-01-11 05:33:24,741 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 [2022-01-11 05:33:24,742 INFO L933 BasicCegarLoop]: 5173 mSDtfsCounter, 3499 mSDsluCounter, 2288 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 7461 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:24,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3499 Valid, 7461 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:33:24,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56288 states. [2022-01-11 05:33:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56288 to 53238. [2022-01-11 05:33:26,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.844231961377341) internal successors, (98174), 53237 states have internal predecessors, (98174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 98174 transitions. [2022-01-11 05:33:26,144 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 98174 transitions. Word has length 105 [2022-01-11 05:33:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:26,147 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 98174 transitions. [2022-01-11 05:33:26,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:26,148 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 98174 transitions. [2022-01-11 05:33:26,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-11 05:33:26,164 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:26,164 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:26,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:33:26,271 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)] === [2022-01-11 05:33:26,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:26,271 INFO L85 PathProgramCache]: Analyzing trace with hash 2038757881, now seen corresponding path program 1 times [2022-01-11 05:33:26,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:26,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294737318] [2022-01-11 05:33:26,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:26,272 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:26,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:26,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:26,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:26,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294737318] [2022-01-11 05:33:26,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294737318] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:26,325 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:26,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:26,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900222861] [2022-01-11 05:33:26,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:26,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:26,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:26,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:26,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:26,327 INFO L87 Difference]: Start difference. First operand 53238 states and 98174 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:27,733 INFO L93 Difference]: Finished difference Result 110274 states and 203513 transitions. [2022-01-11 05:33:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:27,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2022-01-11 05:33:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:27,966 INFO L225 Difference]: With dead ends: 110274 [2022-01-11 05:33:27,966 INFO L226 Difference]: Without dead ends: 59141 [2022-01-11 05:33:28,105 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 [2022-01-11 05:33:28,105 INFO L933 BasicCegarLoop]: 5651 mSDtfsCounter, 3224 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 8229 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:28,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3224 Valid, 8229 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:28,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59141 states. [2022-01-11 05:33:29,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59141 to 53238. [2022-01-11 05:33:29,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.8223470403696955) internal successors, (97009), 53237 states have internal predecessors, (97009), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:29,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 97009 transitions. [2022-01-11 05:33:29,255 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 97009 transitions. Word has length 110 [2022-01-11 05:33:29,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:29,255 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 97009 transitions. [2022-01-11 05:33:29,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:29,256 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 97009 transitions. [2022-01-11 05:33:29,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 05:33:29,314 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:29,315 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] [2022-01-11 05:33:29,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:33:29,315 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)] === [2022-01-11 05:33:29,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:29,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1942368729, now seen corresponding path program 1 times [2022-01-11 05:33:29,315 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:29,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339766524] [2022-01-11 05:33:29,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:29,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:29,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:29,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:29,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:29,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339766524] [2022-01-11 05:33:29,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339766524] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:29,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:29,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:29,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662847147] [2022-01-11 05:33:29,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:29,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:29,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:29,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:29,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:29,359 INFO L87 Difference]: Start difference. First operand 53238 states and 97009 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) [2022-01-11 05:33:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:30,912 INFO L93 Difference]: Finished difference Result 111642 states and 203997 transitions. [2022-01-11 05:33:30,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:30,913 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 [2022-01-11 05:33:30,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:31,132 INFO L225 Difference]: With dead ends: 111642 [2022-01-11 05:33:31,132 INFO L226 Difference]: Without dead ends: 62747 [2022-01-11 05:33:31,157 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 [2022-01-11 05:33:31,157 INFO L933 BasicCegarLoop]: 6021 mSDtfsCounter, 3071 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3071 SdHoareTripleChecker+Valid, 8889 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:31,157 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3071 Valid, 8889 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 521 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:33:31,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62747 states. [2022-01-11 05:33:32,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62747 to 53238. [2022-01-11 05:33:32,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53238 states, 53233 states have (on average 1.804970600943024) internal successors, (96084), 53237 states have internal predecessors, (96084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:32,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53238 states to 53238 states and 96084 transitions. [2022-01-11 05:33:32,502 INFO L78 Accepts]: Start accepts. Automaton has 53238 states and 96084 transitions. Word has length 114 [2022-01-11 05:33:32,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:32,503 INFO L470 AbstractCegarLoop]: Abstraction has 53238 states and 96084 transitions. [2022-01-11 05:33:32,503 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) [2022-01-11 05:33:32,503 INFO L276 IsEmpty]: Start isEmpty. Operand 53238 states and 96084 transitions. [2022-01-11 05:33:32,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-11 05:33:32,530 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:32,531 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:32,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:33:32,531 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)] === [2022-01-11 05:33:32,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:32,531 INFO L85 PathProgramCache]: Analyzing trace with hash 206754320, now seen corresponding path program 1 times [2022-01-11 05:33:32,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:32,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313097983] [2022-01-11 05:33:32,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:32,532 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:32,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:32,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313097983] [2022-01-11 05:33:32,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313097983] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:32,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:32,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:32,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100746054] [2022-01-11 05:33:32,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:32,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:32,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:32,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:32,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:32,621 INFO L87 Difference]: Start difference. First operand 53238 states and 96084 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:34,518 INFO L93 Difference]: Finished difference Result 136136 states and 247311 transitions. [2022-01-11 05:33:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-01-11 05:33:34,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:34,826 INFO L225 Difference]: With dead ends: 136136 [2022-01-11 05:33:34,826 INFO L226 Difference]: Without dead ends: 90118 [2022-01-11 05:33:34,858 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 [2022-01-11 05:33:34,858 INFO L933 BasicCegarLoop]: 6846 mSDtfsCounter, 2806 mSDsluCounter, 3555 mSDsCounter, 0 mSdLazyCounter, 527 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2806 SdHoareTripleChecker+Valid, 10401 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:34,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2806 Valid, 10401 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 527 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:33:34,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90118 states. [2022-01-11 05:33:36,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90118 to 52923. [2022-01-11 05:33:36,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52923 states, 52918 states have (on average 1.7919044559507162) internal successors, (94824), 52922 states have internal predecessors, (94824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52923 states to 52923 states and 94824 transitions. [2022-01-11 05:33:36,466 INFO L78 Accepts]: Start accepts. Automaton has 52923 states and 94824 transitions. Word has length 117 [2022-01-11 05:33:36,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:36,468 INFO L470 AbstractCegarLoop]: Abstraction has 52923 states and 94824 transitions. [2022-01-11 05:33:36,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:36,468 INFO L276 IsEmpty]: Start isEmpty. Operand 52923 states and 94824 transitions. [2022-01-11 05:33:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-11 05:33:36,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:36,482 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:36,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:33:36,482 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:36,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:36,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1661049565, now seen corresponding path program 1 times [2022-01-11 05:33:36,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:36,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94515815] [2022-01-11 05:33:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:36,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:36,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:36,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:36,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94515815] [2022-01-11 05:33:36,538 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94515815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:36,538 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:36,538 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:36,539 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188081216] [2022-01-11 05:33:36,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:36,539 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:33:36,539 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:36,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:33:36,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:33:36,540 INFO L87 Difference]: Start difference. First operand 52923 states and 94824 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:38,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:38,185 INFO L93 Difference]: Finished difference Result 108956 states and 196958 transitions. [2022-01-11 05:33:38,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:33:38,186 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-11 05:33:38,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:38,302 INFO L225 Difference]: With dead ends: 108956 [2022-01-11 05:33:38,302 INFO L226 Difference]: Without dead ends: 66683 [2022-01-11 05:33:38,354 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 [2022-01-11 05:33:38,355 INFO L933 BasicCegarLoop]: 6431 mSDtfsCounter, 2558 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2558 SdHoareTripleChecker+Valid, 9879 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:38,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2558 Valid, 9879 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:38,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66683 states. [2022-01-11 05:33:39,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66683 to 52923. [2022-01-11 05:33:39,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52923 states, 52918 states have (on average 1.779810272497071) internal successors, (94184), 52922 states have internal predecessors, (94184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52923 states to 52923 states and 94184 transitions. [2022-01-11 05:33:39,772 INFO L78 Accepts]: Start accepts. Automaton has 52923 states and 94184 transitions. Word has length 118 [2022-01-11 05:33:39,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:39,773 INFO L470 AbstractCegarLoop]: Abstraction has 52923 states and 94184 transitions. [2022-01-11 05:33:39,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:39,773 INFO L276 IsEmpty]: Start isEmpty. Operand 52923 states and 94184 transitions. [2022-01-11 05:33:39,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 05:33:39,786 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:39,786 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:39,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:33:39,787 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:39,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:39,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1595791797, now seen corresponding path program 1 times [2022-01-11 05:33:39,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:39,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566012035] [2022-01-11 05:33:39,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:39,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:39,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:39,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566012035] [2022-01-11 05:33:39,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566012035] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:39,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:39,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:39,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664894119] [2022-01-11 05:33:39,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:39,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:39,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:39,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:39,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:39,858 INFO L87 Difference]: Start difference. First operand 52923 states and 94184 transitions. Second operand has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:42,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:42,254 INFO L93 Difference]: Finished difference Result 158669 states and 282432 transitions. [2022-01-11 05:33:42,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:42,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2022-01-11 05:33:42,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:42,580 INFO L225 Difference]: With dead ends: 158669 [2022-01-11 05:33:42,581 INFO L226 Difference]: Without dead ends: 105775 [2022-01-11 05:33:42,634 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 [2022-01-11 05:33:42,635 INFO L933 BasicCegarLoop]: 8700 mSDtfsCounter, 13046 mSDsluCounter, 4383 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13046 SdHoareTripleChecker+Valid, 13083 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:42,635 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13046 Valid, 13083 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105775 states. [2022-01-11 05:33:44,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105775 to 52902. [2022-01-11 05:33:44,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52902 states, 52897 states have (on average 1.7799875229219049) internal successors, (94156), 52901 states have internal predecessors, (94156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52902 states to 52902 states and 94156 transitions. [2022-01-11 05:33:44,510 INFO L78 Accepts]: Start accepts. Automaton has 52902 states and 94156 transitions. Word has length 119 [2022-01-11 05:33:44,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:44,513 INFO L470 AbstractCegarLoop]: Abstraction has 52902 states and 94156 transitions. [2022-01-11 05:33:44,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.8) internal successors, (119), 5 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 52902 states and 94156 transitions. [2022-01-11 05:33:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-11 05:33:44,526 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:44,526 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:44,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:33:44,526 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:44,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:44,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1590956324, now seen corresponding path program 1 times [2022-01-11 05:33:44,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:44,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350652698] [2022-01-11 05:33:44,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:44,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:44,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:44,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:44,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:44,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350652698] [2022-01-11 05:33:44,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350652698] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:44,610 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:44,610 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:33:44,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644596220] [2022-01-11 05:33:44,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:44,610 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:44,611 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:44,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:44,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:44,611 INFO L87 Difference]: Start difference. First operand 52902 states and 94156 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:46,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:46,030 INFO L93 Difference]: Finished difference Result 105775 states and 188280 transitions. [2022-01-11 05:33:46,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:46,031 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2022-01-11 05:33:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:46,121 INFO L225 Difference]: With dead ends: 105775 [2022-01-11 05:33:46,122 INFO L226 Difference]: Without dead ends: 52896 [2022-01-11 05:33:46,146 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 [2022-01-11 05:33:46,147 INFO L933 BasicCegarLoop]: 4357 mSDtfsCounter, 8693 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8693 SdHoareTripleChecker+Valid, 4383 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:46,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8693 Valid, 4383 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:46,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52896 states. [2022-01-11 05:33:47,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52896 to 52896. [2022-01-11 05:33:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.7800381917528503) internal successors, (94148), 52895 states have internal predecessors, (94148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 94148 transitions. [2022-01-11 05:33:47,678 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 94148 transitions. Word has length 121 [2022-01-11 05:33:47,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:47,678 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 94148 transitions. [2022-01-11 05:33:47,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 4 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:47,678 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 94148 transitions. [2022-01-11 05:33:47,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-01-11 05:33:47,691 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:47,691 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:47,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:33:47,691 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:47,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:47,691 INFO L85 PathProgramCache]: Analyzing trace with hash 836786823, now seen corresponding path program 1 times [2022-01-11 05:33:47,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:47,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806235223] [2022-01-11 05:33:47,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:47,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:47,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:47,748 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:47,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806235223] [2022-01-11 05:33:47,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806235223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:47,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:47,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:47,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402070287] [2022-01-11 05:33:47,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:47,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:33:47,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:47,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:33:47,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:33:47,750 INFO L87 Difference]: Start difference. First operand 52896 states and 94148 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:49,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:49,221 INFO L93 Difference]: Finished difference Result 105763 states and 188261 transitions. [2022-01-11 05:33:49,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:33:49,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2022-01-11 05:33:49,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:49,404 INFO L225 Difference]: With dead ends: 105763 [2022-01-11 05:33:49,404 INFO L226 Difference]: Without dead ends: 52896 [2022-01-11 05:33:49,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:49,431 INFO L933 BasicCegarLoop]: 4348 mSDtfsCounter, 13017 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13017 SdHoareTripleChecker+Valid, 4384 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:33:49,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13017 Valid, 4384 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:33:49,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52896 states. [2022-01-11 05:33:50,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52896 to 52896. [2022-01-11 05:33:50,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.7800192849445085) internal successors, (94147), 52895 states have internal predecessors, (94147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 94147 transitions. [2022-01-11 05:33:50,991 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 94147 transitions. Word has length 122 [2022-01-11 05:33:50,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:50,991 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 94147 transitions. [2022-01-11 05:33:50,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 5 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 94147 transitions. [2022-01-11 05:33:51,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-01-11 05:33:51,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:51,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:51,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:33:51,006 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:51,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:51,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1011266818, now seen corresponding path program 1 times [2022-01-11 05:33:51,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:51,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891947238] [2022-01-11 05:33:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:51,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:51,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:51,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:51,110 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:51,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891947238] [2022-01-11 05:33:51,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891947238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:51,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:51,111 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:33:51,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512492734] [2022-01-11 05:33:51,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:51,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:33:51,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:51,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:33:51,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:33:51,112 INFO L87 Difference]: Start difference. First operand 52896 states and 94147 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:33:54,195 INFO L93 Difference]: Finished difference Result 152377 states and 270400 transitions. [2022-01-11 05:33:54,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:33:54,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 123 [2022-01-11 05:33:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:33:54,461 INFO L225 Difference]: With dead ends: 152377 [2022-01-11 05:33:54,461 INFO L226 Difference]: Without dead ends: 99518 [2022-01-11 05:33:54,501 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 [2022-01-11 05:33:54,503 INFO L933 BasicCegarLoop]: 4383 mSDtfsCounter, 11537 mSDsluCounter, 3644 mSDsCounter, 0 mSdLazyCounter, 508 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11537 SdHoareTripleChecker+Valid, 8027 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 [2022-01-11 05:33:54,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11537 Valid, 8027 Invalid, 639 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 508 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:33:54,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99518 states. [2022-01-11 05:33:56,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99518 to 52896. [2022-01-11 05:33:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52896 states, 52891 states have (on average 1.760129322569057) internal successors, (93095), 52895 states have internal predecessors, (93095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:56,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52896 states to 52896 states and 93095 transitions. [2022-01-11 05:33:56,514 INFO L78 Accepts]: Start accepts. Automaton has 52896 states and 93095 transitions. Word has length 123 [2022-01-11 05:33:56,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:33:56,514 INFO L470 AbstractCegarLoop]: Abstraction has 52896 states and 93095 transitions. [2022-01-11 05:33:56,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:33:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 52896 states and 93095 transitions. [2022-01-11 05:33:56,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-11 05:33:56,525 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:33:56,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:33:56,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:33:56,526 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2022-01-11 05:33:56,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:33:56,526 INFO L85 PathProgramCache]: Analyzing trace with hash -182255730, now seen corresponding path program 1 times [2022-01-11 05:33:56,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:33:56,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792787725] [2022-01-11 05:33:56,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:33:56,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:33:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:33:56,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:33:56,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:33:56,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792787725] [2022-01-11 05:33:56,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792787725] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:33:56,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:33:56,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:33:56,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742679691] [2022-01-11 05:33:56,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:33:56,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:33:56,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:33:56,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:33:56,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:33:56,586 INFO L87 Difference]: Start difference. First operand 52896 states and 93095 transitions. Second operand has 6 states, 6 states have (on average 21.166666666666668) internal successors, (127), 5 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)