/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_BITWISE.epf -i ../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 13:40:21,646 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 13:40:21,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 13:40:21,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 13:40:21,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 13:40:21,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 13:40:21,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 13:40:21,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 13:40:21,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 13:40:21,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 13:40:21,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 13:40:21,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 13:40:21,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 13:40:21,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 13:40:21,710 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 13:40:21,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 13:40:21,713 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 13:40:21,714 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 13:40:21,715 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 13:40:21,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 13:40:21,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 13:40:21,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 13:40:21,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 13:40:21,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 13:40:21,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 13:40:21,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 13:40:21,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 13:40:21,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 13:40:21,731 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 13:40:21,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 13:40:21,733 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 13:40:21,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 13:40:21,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 13:40:21,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 13:40:21,734 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 13:40:21,734 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 13:40:21,735 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 13:40:21,764 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 13:40:21,765 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 13:40:21,765 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 13:40:21,765 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 13:40:21,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 13:40:21,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 13:40:21,766 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 13:40:21,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 13:40:21,766 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 13:40:21,766 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 13:40:21,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 13:40:21,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 13:40:21,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 13:40:21,767 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 13:40:21,767 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 13:40:21,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:40:21,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 13:40:21,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 13:40:21,769 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 13:40:21,770 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 13:40:21,770 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 13:40:21,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 13:40:21,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 13:40:21,986 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 13:40:21,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 13:40:21,987 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 13:40:21,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c [2022-01-10 13:40:22,040 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579270d63/21fd9d2f68da456b899b39500bd30d0a/FLAG16a80268c [2022-01-10 13:40:22,735 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 13:40:22,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c [2022-01-10 13:40:22,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579270d63/21fd9d2f68da456b899b39500bd30d0a/FLAG16a80268c [2022-01-10 13:40:23,279 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/579270d63/21fd9d2f68da456b899b39500bd30d0a [2022-01-10 13:40:23,281 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 13:40:23,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 13:40:23,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 13:40:23,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 13:40:23,287 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 13:40:23,288 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:40:23" (1/1) ... [2022-01-10 13:40:23,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@380ad134 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:23, skipping insertion in model container [2022-01-10 13:40:23,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 01:40:23" (1/1) ... [2022-01-10 13:40:23,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 13:40:23,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 13:40:24,635 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2022-01-10 13:40:24,657 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2022-01-10 13:40:24,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:40:24,839 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 13:40:25,443 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c[380323,380336] [2022-01-10 13:40:25,447 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/combinations/Problem05_label45+token_ring.07.cil-2.c[383339,383352] [2022-01-10 13:40:25,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 13:40:25,505 INFO L208 MainTranslator]: Completed translation [2022-01-10 13:40:25,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25 WrapperNode [2022-01-10 13:40:25,506 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 13:40:25,507 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 13:40:25,507 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 13:40:25,507 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 13:40:25,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:25,570 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:25,886 INFO L137 Inliner]: procedures = 59, calls = 63, calls flagged for inlining = 58, calls inlined = 145, statements flattened = 14336 [2022-01-10 13:40:25,886 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 13:40:25,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 13:40:25,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 13:40:25,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 13:40:25,897 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:25,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:25,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:25,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:26,067 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:26,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:26,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:26,284 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 13:40:26,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 13:40:26,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 13:40:26,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 13:40:26,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (1/1) ... [2022-01-10 13:40:26,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 13:40:26,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 13:40:26,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 13:40:26,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 13:40:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 13:40:26,332 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 13:40:26,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 13:40:26,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 13:40:26,441 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 13:40:26,442 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 13:40:33,671 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 13:40:33,696 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 13:40:33,696 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-01-10 13:40:33,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:33 BoogieIcfgContainer [2022-01-10 13:40:33,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 13:40:33,701 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 13:40:33,701 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 13:40:33,702 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 13:40:33,704 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:33" (1/1) ... [2022-01-10 13:40:34,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:40:34 BasicIcfg [2022-01-10 13:40:34,947 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 13:40:34,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 13:40:34,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 13:40:34,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 13:40:34,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 01:40:23" (1/4) ... [2022-01-10 13:40:34,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcb5c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:34, skipping insertion in model container [2022-01-10 13:40:34,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 01:40:25" (2/4) ... [2022-01-10 13:40:34,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcb5c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 01:40:34, skipping insertion in model container [2022-01-10 13:40:34,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 01:40:33" (3/4) ... [2022-01-10 13:40:34,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bcb5c40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 01:40:34, skipping insertion in model container [2022-01-10 13:40:34,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 01:40:34" (4/4) ... [2022-01-10 13:40:34,954 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.07.cil-2.cTransformedIcfg [2022-01-10 13:40:34,958 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 13:40:34,959 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2022-01-10 13:40:35,013 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 13:40:35,020 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 13:40:35,020 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-10 13:40:35,063 INFO L276 IsEmpty]: Start isEmpty. Operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:35,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:35,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:35,074 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] [2022-01-10 13:40:35,074 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:35,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:35,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1118785845, now seen corresponding path program 1 times [2022-01-10 13:40:35,087 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:35,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78120944] [2022-01-10 13:40:35,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:35,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:35,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:35,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:35,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78120944] [2022-01-10 13:40:35,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78120944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:35,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:35,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:35,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061103680] [2022-01-10 13:40:35,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:35,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:35,328 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:35,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:35,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:35,358 INFO L87 Difference]: Start difference. First operand has 3028 states, 3024 states have (on average 1.7744708994708995) internal successors, (5366), 3027 states have internal predecessors, (5366), 0 states have call successors, (0), 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 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:35,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:35,653 INFO L93 Difference]: Finished difference Result 6722 states and 11736 transitions. [2022-01-10 13:40:35,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:35,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:35,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:35,682 INFO L225 Difference]: With dead ends: 6722 [2022-01-10 13:40:35,682 INFO L226 Difference]: Without dead ends: 3638 [2022-01-10 13:40:35,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:35,697 INFO L933 BasicCegarLoop]: 5273 mSDtfsCounter, 5177 mSDsluCounter, 1085 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5177 SdHoareTripleChecker+Valid, 6358 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:35,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5177 Valid, 6358 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:35,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3638 states. [2022-01-10 13:40:35,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3638 to 3634. [2022-01-10 13:40:35,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.710272652161939) internal successors, (6210), 3633 states have internal predecessors, (6210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:35,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6210 transitions. [2022-01-10 13:40:35,853 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6210 transitions. Word has length 110 [2022-01-10 13:40:35,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:35,853 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6210 transitions. [2022-01-10 13:40:35,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:35,854 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6210 transitions. [2022-01-10 13:40:35,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:35,859 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:35,860 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] [2022-01-10 13:40:35,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 13:40:35,860 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:35,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:35,862 INFO L85 PathProgramCache]: Analyzing trace with hash -1296351509, now seen corresponding path program 1 times [2022-01-10 13:40:35,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:35,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476683583] [2022-01-10 13:40:35,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:35,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:35,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:35,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:35,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476683583] [2022-01-10 13:40:35,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476683583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:35,996 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:35,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:35,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594540336] [2022-01-10 13:40:35,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:35,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:35,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:35,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:35,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:35,998 INFO L87 Difference]: Start difference. First operand 3634 states and 6210 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:36,083 INFO L93 Difference]: Finished difference Result 5132 states and 8438 transitions. [2022-01-10 13:40:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:36,095 INFO L225 Difference]: With dead ends: 5132 [2022-01-10 13:40:36,097 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:36,104 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,105 INFO L933 BasicCegarLoop]: 5200 mSDtfsCounter, 5190 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5190 SdHoareTripleChecker+Valid, 5200 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:36,106 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5190 Valid, 5200 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:36,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:36,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7080694023684935) internal successors, (6202), 3633 states have internal predecessors, (6202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:36,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6202 transitions. [2022-01-10 13:40:36,187 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6202 transitions. Word has length 110 [2022-01-10 13:40:36,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:36,187 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6202 transitions. [2022-01-10 13:40:36,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,189 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6202 transitions. [2022-01-10 13:40:36,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:36,196 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:36,197 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] [2022-01-10 13:40:36,200 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 13:40:36,200 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:36,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:36,201 INFO L85 PathProgramCache]: Analyzing trace with hash -609342773, now seen corresponding path program 1 times [2022-01-10 13:40:36,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:36,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341405482] [2022-01-10 13:40:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:36,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:36,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:36,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341405482] [2022-01-10 13:40:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341405482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:36,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:36,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:36,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390672677] [2022-01-10 13:40:36,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:36,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:36,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:36,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:36,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,294 INFO L87 Difference]: Start difference. First operand 3634 states and 6202 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:36,366 INFO L93 Difference]: Finished difference Result 5131 states and 8421 transitions. [2022-01-10 13:40:36,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:36,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:36,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:36,379 INFO L225 Difference]: With dead ends: 5131 [2022-01-10 13:40:36,380 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:36,386 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,388 INFO L933 BasicCegarLoop]: 5195 mSDtfsCounter, 5184 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5184 SdHoareTripleChecker+Valid, 5195 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:36,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5184 Valid, 5195 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:36,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:36,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:36,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7058661525750483) internal successors, (6194), 3633 states have internal predecessors, (6194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:36,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6194 transitions. [2022-01-10 13:40:36,479 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6194 transitions. Word has length 110 [2022-01-10 13:40:36,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:36,480 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6194 transitions. [2022-01-10 13:40:36,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,480 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6194 transitions. [2022-01-10 13:40:36,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:36,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:36,481 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] [2022-01-10 13:40:36,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 13:40:36,482 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:36,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:36,482 INFO L85 PathProgramCache]: Analyzing trace with hash -725728533, now seen corresponding path program 1 times [2022-01-10 13:40:36,483 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:36,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666492565] [2022-01-10 13:40:36,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:36,484 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:36,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:36,562 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:36,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:36,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666492565] [2022-01-10 13:40:36,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666492565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:36,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:36,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:36,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124656237] [2022-01-10 13:40:36,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:36,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:36,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:36,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:36,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,564 INFO L87 Difference]: Start difference. First operand 3634 states and 6194 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:36,642 INFO L93 Difference]: Finished difference Result 5130 states and 8404 transitions. [2022-01-10 13:40:36,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:36,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:36,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:36,656 INFO L225 Difference]: With dead ends: 5130 [2022-01-10 13:40:36,656 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:36,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,660 INFO L933 BasicCegarLoop]: 5190 mSDtfsCounter, 5178 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5178 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:36,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5178 Valid, 5190 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:36,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:36,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:36,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7036629027816028) internal successors, (6186), 3633 states have internal predecessors, (6186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:36,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6186 transitions. [2022-01-10 13:40:36,752 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6186 transitions. Word has length 110 [2022-01-10 13:40:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:36,753 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6186 transitions. [2022-01-10 13:40:36,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6186 transitions. [2022-01-10 13:40:36,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:36,754 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:36,754 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] [2022-01-10 13:40:36,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 13:40:36,754 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:36,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:36,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1422219573, now seen corresponding path program 1 times [2022-01-10 13:40:36,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:36,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970768298] [2022-01-10 13:40:36,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:36,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:36,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:36,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:36,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970768298] [2022-01-10 13:40:36,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970768298] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:36,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:36,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:36,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346207687] [2022-01-10 13:40:36,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:36,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:36,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:36,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:36,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:36,842 INFO L87 Difference]: Start difference. First operand 3634 states and 6186 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,144 INFO L93 Difference]: Finished difference Result 5129 states and 8387 transitions. [2022-01-10 13:40:37,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,145 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:37,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,158 INFO L225 Difference]: With dead ends: 5129 [2022-01-10 13:40:37,159 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:37,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,163 INFO L933 BasicCegarLoop]: 5185 mSDtfsCounter, 5172 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5172 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5172 Valid, 5185 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:37,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.7014596529881576) internal successors, (6178), 3633 states have internal predecessors, (6178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:37,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6178 transitions. [2022-01-10 13:40:37,267 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6178 transitions. Word has length 110 [2022-01-10 13:40:37,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:37,268 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6178 transitions. [2022-01-10 13:40:37,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,268 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6178 transitions. [2022-01-10 13:40:37,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:37,269 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:37,269 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] [2022-01-10 13:40:37,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 13:40:37,270 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:37,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:37,270 INFO L85 PathProgramCache]: Analyzing trace with hash -474855701, now seen corresponding path program 1 times [2022-01-10 13:40:37,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:37,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075371366] [2022-01-10 13:40:37,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:37,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:37,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:37,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:37,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075371366] [2022-01-10 13:40:37,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075371366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:37,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:37,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:37,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147966670] [2022-01-10 13:40:37,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:37,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:37,312 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:37,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:37,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,313 INFO L87 Difference]: Start difference. First operand 3634 states and 6178 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,393 INFO L93 Difference]: Finished difference Result 5128 states and 8370 transitions. [2022-01-10 13:40:37,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:37,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,406 INFO L225 Difference]: With dead ends: 5128 [2022-01-10 13:40:37,406 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:37,410 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,416 INFO L933 BasicCegarLoop]: 5180 mSDtfsCounter, 5166 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5166 SdHoareTripleChecker+Valid, 5180 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5166 Valid, 5180 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:37,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:37,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6992564031947122) internal successors, (6170), 3633 states have internal predecessors, (6170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6170 transitions. [2022-01-10 13:40:37,505 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6170 transitions. Word has length 110 [2022-01-10 13:40:37,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:37,506 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6170 transitions. [2022-01-10 13:40:37,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6170 transitions. [2022-01-10 13:40:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:37,507 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:37,507 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] [2022-01-10 13:40:37,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 13:40:37,507 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:37,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:37,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1414126901, now seen corresponding path program 1 times [2022-01-10 13:40:37,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:37,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788372231] [2022-01-10 13:40:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:37,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:37,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:37,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788372231] [2022-01-10 13:40:37,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788372231] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:37,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:37,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:37,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095698023] [2022-01-10 13:40:37,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:37,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:37,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:37,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,554 INFO L87 Difference]: Start difference. First operand 3634 states and 6170 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,656 INFO L93 Difference]: Finished difference Result 5127 states and 8353 transitions. [2022-01-10 13:40:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:37,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,679 INFO L225 Difference]: With dead ends: 5127 [2022-01-10 13:40:37,679 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:37,684 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,685 INFO L933 BasicCegarLoop]: 5175 mSDtfsCounter, 5160 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5160 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5160 Valid, 5175 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:37,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.697053153401267) internal successors, (6162), 3633 states have internal predecessors, (6162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6162 transitions. [2022-01-10 13:40:37,784 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6162 transitions. Word has length 110 [2022-01-10 13:40:37,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:37,784 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6162 transitions. [2022-01-10 13:40:37,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6162 transitions. [2022-01-10 13:40:37,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:37,785 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:37,785 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] [2022-01-10 13:40:37,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 13:40:37,786 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1742162667, now seen corresponding path program 1 times [2022-01-10 13:40:37,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:37,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905702033] [2022-01-10 13:40:37,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:37,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:37,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:37,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:37,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:37,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905702033] [2022-01-10 13:40:37,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905702033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:37,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:37,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:37,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684556523] [2022-01-10 13:40:37,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:37,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:37,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:37,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:37,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,835 INFO L87 Difference]: Start difference. First operand 3634 states and 6162 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:37,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:37,905 INFO L93 Difference]: Finished difference Result 5126 states and 8336 transitions. [2022-01-10 13:40:37,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:37,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:37,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:37,913 INFO L225 Difference]: With dead ends: 5126 [2022-01-10 13:40:37,913 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:37,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:37,916 INFO L933 BasicCegarLoop]: 5170 mSDtfsCounter, 5154 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5154 SdHoareTripleChecker+Valid, 5170 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:37,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5154 Valid, 5170 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6948499036078215) internal successors, (6154), 3633 states have internal predecessors, (6154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6154 transitions. [2022-01-10 13:40:38,010 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6154 transitions. Word has length 110 [2022-01-10 13:40:38,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:38,011 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6154 transitions. [2022-01-10 13:40:38,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6154 transitions. [2022-01-10 13:40:38,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:38,012 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:38,012 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] [2022-01-10 13:40:38,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 13:40:38,012 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1289789131, now seen corresponding path program 1 times [2022-01-10 13:40:38,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:38,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839033467] [2022-01-10 13:40:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:38,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:38,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:38,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:38,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839033467] [2022-01-10 13:40:38,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839033467] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:38,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:38,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:38,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78744795] [2022-01-10 13:40:38,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:38,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:38,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:38,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:38,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,053 INFO L87 Difference]: Start difference. First operand 3634 states and 6154 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:38,251 INFO L93 Difference]: Finished difference Result 5125 states and 8319 transitions. [2022-01-10 13:40:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:38,259 INFO L225 Difference]: With dead ends: 5125 [2022-01-10 13:40:38,260 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:38,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,264 INFO L933 BasicCegarLoop]: 5145 mSDtfsCounter, 5056 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5056 SdHoareTripleChecker+Valid, 5223 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:38,264 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5056 Valid, 5223 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:38,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:38,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.687689341779124) internal successors, (6128), 3633 states have internal predecessors, (6128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:38,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6128 transitions. [2022-01-10 13:40:38,342 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6128 transitions. Word has length 110 [2022-01-10 13:40:38,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:38,344 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6128 transitions. [2022-01-10 13:40:38,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,346 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6128 transitions. [2022-01-10 13:40:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:38,347 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:38,347 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] [2022-01-10 13:40:38,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 13:40:38,347 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:38,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:38,348 INFO L85 PathProgramCache]: Analyzing trace with hash 848876650, now seen corresponding path program 1 times [2022-01-10 13:40:38,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:38,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575021205] [2022-01-10 13:40:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:38,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:38,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:38,380 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:38,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575021205] [2022-01-10 13:40:38,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575021205] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:38,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:38,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:38,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932977614] [2022-01-10 13:40:38,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:38,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:38,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:38,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:38,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,382 INFO L87 Difference]: Start difference. First operand 3634 states and 6128 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:38,492 INFO L93 Difference]: Finished difference Result 5124 states and 8266 transitions. [2022-01-10 13:40:38,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:38,493 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:38,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:38,499 INFO L225 Difference]: With dead ends: 5124 [2022-01-10 13:40:38,499 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:38,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,502 INFO L933 BasicCegarLoop]: 5130 mSDtfsCounter, 5041 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5041 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:38,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5041 Valid, 5207 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:38,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:38,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.680528779950427) internal successors, (6102), 3633 states have internal predecessors, (6102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:38,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6102 transitions. [2022-01-10 13:40:38,589 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6102 transitions. Word has length 110 [2022-01-10 13:40:38,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:38,589 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6102 transitions. [2022-01-10 13:40:38,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6102 transitions. [2022-01-10 13:40:38,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:38,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:38,590 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] [2022-01-10 13:40:38,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 13:40:38,591 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:38,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:38,592 INFO L85 PathProgramCache]: Analyzing trace with hash -213454583, now seen corresponding path program 1 times [2022-01-10 13:40:38,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:38,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845653299] [2022-01-10 13:40:38,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:38,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:38,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:38,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:38,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:38,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845653299] [2022-01-10 13:40:38,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845653299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:38,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:38,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:38,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950400319] [2022-01-10 13:40:38,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:38,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:38,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:38,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:38,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,624 INFO L87 Difference]: Start difference. First operand 3634 states and 6102 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:38,717 INFO L93 Difference]: Finished difference Result 5123 states and 8213 transitions. [2022-01-10 13:40:38,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:38,718 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:38,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:38,725 INFO L225 Difference]: With dead ends: 5123 [2022-01-10 13:40:38,725 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:38,728 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,728 INFO L933 BasicCegarLoop]: 5115 mSDtfsCounter, 5026 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5026 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:38,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5026 Valid, 5191 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:38,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:38,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:38,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6733682181217295) internal successors, (6076), 3633 states have internal predecessors, (6076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6076 transitions. [2022-01-10 13:40:38,822 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6076 transitions. Word has length 110 [2022-01-10 13:40:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:38,822 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6076 transitions. [2022-01-10 13:40:38,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,822 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6076 transitions. [2022-01-10 13:40:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:38,823 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:38,824 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] [2022-01-10 13:40:38,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 13:40:38,824 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:38,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:38,824 INFO L85 PathProgramCache]: Analyzing trace with hash -173951704, now seen corresponding path program 1 times [2022-01-10 13:40:38,824 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:38,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16073151] [2022-01-10 13:40:38,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:38,825 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:38,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:38,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:38,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16073151] [2022-01-10 13:40:38,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16073151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:38,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:38,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:38,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518431842] [2022-01-10 13:40:38,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:38,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:38,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:38,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:38,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,863 INFO L87 Difference]: Start difference. First operand 3634 states and 6076 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:38,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:38,961 INFO L93 Difference]: Finished difference Result 5122 states and 8160 transitions. [2022-01-10 13:40:38,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:38,962 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:38,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:38,970 INFO L225 Difference]: With dead ends: 5122 [2022-01-10 13:40:38,970 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:38,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:38,974 INFO L933 BasicCegarLoop]: 5100 mSDtfsCounter, 5011 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5011 SdHoareTripleChecker+Valid, 5175 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:38,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5011 Valid, 5175 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:39,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6662076562930321) internal successors, (6050), 3633 states have internal predecessors, (6050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6050 transitions. [2022-01-10 13:40:39,067 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6050 transitions. Word has length 110 [2022-01-10 13:40:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:39,068 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6050 transitions. [2022-01-10 13:40:39,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6050 transitions. [2022-01-10 13:40:39,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:39,069 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:39,069 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:39,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 13:40:39,069 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:39,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash 1538076743, now seen corresponding path program 1 times [2022-01-10 13:40:39,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:39,070 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47721162] [2022-01-10 13:40:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:39,070 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:39,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:39,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:39,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47721162] [2022-01-10 13:40:39,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47721162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:39,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:39,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:39,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578152969] [2022-01-10 13:40:39,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:39,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:39,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:39,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:39,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,116 INFO L87 Difference]: Start difference. First operand 3634 states and 6050 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:39,257 INFO L93 Difference]: Finished difference Result 5121 states and 8107 transitions. [2022-01-10 13:40:39,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:39,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:39,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:39,263 INFO L225 Difference]: With dead ends: 5121 [2022-01-10 13:40:39,263 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:39,265 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,266 INFO L933 BasicCegarLoop]: 5085 mSDtfsCounter, 4996 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4996 SdHoareTripleChecker+Valid, 5159 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:39,266 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4996 Valid, 5159 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:39,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:39,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:39,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.659047094464335) internal successors, (6024), 3633 states have internal predecessors, (6024), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:39,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 6024 transitions. [2022-01-10 13:40:39,346 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 6024 transitions. Word has length 110 [2022-01-10 13:40:39,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:39,347 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 6024 transitions. [2022-01-10 13:40:39,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,347 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 6024 transitions. [2022-01-10 13:40:39,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:39,348 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:39,348 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] [2022-01-10 13:40:39,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 13:40:39,349 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:39,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:39,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1901523047, now seen corresponding path program 1 times [2022-01-10 13:40:39,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:39,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175887677] [2022-01-10 13:40:39,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:39,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:39,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:39,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:39,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:39,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175887677] [2022-01-10 13:40:39,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175887677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:39,383 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:39,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:39,383 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680584460] [2022-01-10 13:40:39,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:39,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:39,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:39,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:39,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,384 INFO L87 Difference]: Start difference. First operand 3634 states and 6024 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:39,480 INFO L93 Difference]: Finished difference Result 5120 states and 8054 transitions. [2022-01-10 13:40:39,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:39,481 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:39,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:39,487 INFO L225 Difference]: With dead ends: 5120 [2022-01-10 13:40:39,488 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:39,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,492 INFO L933 BasicCegarLoop]: 5070 mSDtfsCounter, 4981 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 5143 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:39,492 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4981 Valid, 5143 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:39,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:39,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6518865326356376) internal successors, (5998), 3633 states have internal predecessors, (5998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5998 transitions. [2022-01-10 13:40:39,584 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5998 transitions. Word has length 110 [2022-01-10 13:40:39,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:39,584 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5998 transitions. [2022-01-10 13:40:39,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5998 transitions. [2022-01-10 13:40:39,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:39,585 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:39,585 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] [2022-01-10 13:40:39,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 13:40:39,586 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:39,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:39,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1350797830, now seen corresponding path program 1 times [2022-01-10 13:40:39,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:39,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037501888] [2022-01-10 13:40:39,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:39,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:39,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:39,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037501888] [2022-01-10 13:40:39,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037501888] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:39,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:39,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:39,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407978460] [2022-01-10 13:40:39,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:39,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:39,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:39,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:39,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,622 INFO L87 Difference]: Start difference. First operand 3634 states and 5998 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:39,716 INFO L93 Difference]: Finished difference Result 5119 states and 8001 transitions. [2022-01-10 13:40:39,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:39,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:39,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:39,723 INFO L225 Difference]: With dead ends: 5119 [2022-01-10 13:40:39,723 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:39,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,728 INFO L933 BasicCegarLoop]: 5055 mSDtfsCounter, 4966 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4966 SdHoareTripleChecker+Valid, 5127 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:39,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4966 Valid, 5127 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:39,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:39,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.6447259708069402) internal successors, (5972), 3633 states have internal predecessors, (5972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:39,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5972 transitions. [2022-01-10 13:40:39,811 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5972 transitions. Word has length 110 [2022-01-10 13:40:39,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:39,811 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5972 transitions. [2022-01-10 13:40:39,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,811 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5972 transitions. [2022-01-10 13:40:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:39,812 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:39,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:39,812 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 13:40:39,812 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:39,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:39,813 INFO L85 PathProgramCache]: Analyzing trace with hash -1008030939, now seen corresponding path program 1 times [2022-01-10 13:40:39,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:39,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692764103] [2022-01-10 13:40:39,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:39,813 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:39,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:39,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:39,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692764103] [2022-01-10 13:40:39,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692764103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:39,846 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:39,846 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:39,846 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35603839] [2022-01-10 13:40:39,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:39,847 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:39,847 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:39,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:39,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,847 INFO L87 Difference]: Start difference. First operand 3634 states and 5972 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:39,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:39,950 INFO L93 Difference]: Finished difference Result 5118 states and 7948 transitions. [2022-01-10 13:40:39,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:39,950 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:39,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:39,956 INFO L225 Difference]: With dead ends: 5118 [2022-01-10 13:40:39,957 INFO L226 Difference]: Without dead ends: 3634 [2022-01-10 13:40:39,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:39,960 INFO L933 BasicCegarLoop]: 5040 mSDtfsCounter, 4951 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4951 SdHoareTripleChecker+Valid, 5111 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:39,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4951 Valid, 5111 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:39,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3634 states. [2022-01-10 13:40:40,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3634 to 3634. [2022-01-10 13:40:40,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3634 states, 3631 states have (on average 1.637565408978243) internal successors, (5946), 3633 states have internal predecessors, (5946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:40,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3634 states to 3634 states and 5946 transitions. [2022-01-10 13:40:40,059 INFO L78 Accepts]: Start accepts. Automaton has 3634 states and 5946 transitions. Word has length 110 [2022-01-10 13:40:40,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:40,060 INFO L470 AbstractCegarLoop]: Abstraction has 3634 states and 5946 transitions. [2022-01-10 13:40:40,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:40,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3634 states and 5946 transitions. [2022-01-10 13:40:40,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:40,061 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:40,061 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] [2022-01-10 13:40:40,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 13:40:40,061 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:40,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:40,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1601551003, now seen corresponding path program 1 times [2022-01-10 13:40:40,062 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:40,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421444151] [2022-01-10 13:40:40,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:40,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:40,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:40,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:40,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421444151] [2022-01-10 13:40:40,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421444151] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:40,124 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:40,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:40,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766956736] [2022-01-10 13:40:40,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:40,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:40,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:40,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:40,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:40,125 INFO L87 Difference]: Start difference. First operand 3634 states and 5946 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:40,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:40,457 INFO L93 Difference]: Finished difference Result 5824 states and 8873 transitions. [2022-01-10 13:40:40,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:40,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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 [2022-01-10 13:40:40,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:40,465 INFO L225 Difference]: With dead ends: 5824 [2022-01-10 13:40:40,465 INFO L226 Difference]: Without dead ends: 4354 [2022-01-10 13:40:40,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:40,469 INFO L933 BasicCegarLoop]: 5129 mSDtfsCounter, 2968 mSDsluCounter, 13404 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2968 SdHoareTripleChecker+Valid, 18533 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:40,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2968 Valid, 18533 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:40,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4354 states. [2022-01-10 13:40:40,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4354 to 3640. [2022-01-10 13:40:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3640 states, 3637 states have (on average 1.6315644762166621) internal successors, (5934), 3639 states have internal predecessors, (5934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:40,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3640 states to 3640 states and 5934 transitions. [2022-01-10 13:40:40,609 INFO L78 Accepts]: Start accepts. Automaton has 3640 states and 5934 transitions. Word has length 110 [2022-01-10 13:40:40,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:40,609 INFO L470 AbstractCegarLoop]: Abstraction has 3640 states and 5934 transitions. [2022-01-10 13:40:40,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 3640 states and 5934 transitions. [2022-01-10 13:40:40,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:40,610 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:40,610 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] [2022-01-10 13:40:40,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 13:40:40,610 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:40,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:40,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1847864090, now seen corresponding path program 1 times [2022-01-10 13:40:40,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:40,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139177691] [2022-01-10 13:40:40,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:40,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:40,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:40,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:40,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139177691] [2022-01-10 13:40:40,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139177691] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:40,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:40,661 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:40,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137136669] [2022-01-10 13:40:40,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:40,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:40,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:40,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:40,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:40,662 INFO L87 Difference]: Start difference. First operand 3640 states and 5934 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:40,974 INFO L93 Difference]: Finished difference Result 6293 states and 9431 transitions. [2022-01-10 13:40:40,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:40,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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 [2022-01-10 13:40:40,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:40,982 INFO L225 Difference]: With dead ends: 6293 [2022-01-10 13:40:40,983 INFO L226 Difference]: Without dead ends: 4852 [2022-01-10 13:40:40,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:40,987 INFO L933 BasicCegarLoop]: 5027 mSDtfsCounter, 2360 mSDsluCounter, 14556 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 19583 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:40,987 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 19583 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4852 states. [2022-01-10 13:40:41,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4852 to 3646. [2022-01-10 13:40:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3646 states, 3643 states have (on average 1.6255833104584134) internal successors, (5922), 3645 states have internal predecessors, (5922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:41,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3646 states to 3646 states and 5922 transitions. [2022-01-10 13:40:41,157 INFO L78 Accepts]: Start accepts. Automaton has 3646 states and 5922 transitions. Word has length 110 [2022-01-10 13:40:41,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:41,158 INFO L470 AbstractCegarLoop]: Abstraction has 3646 states and 5922 transitions. [2022-01-10 13:40:41,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:41,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3646 states and 5922 transitions. [2022-01-10 13:40:41,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:41,159 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:41,159 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] [2022-01-10 13:40:41,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 13:40:41,159 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:41,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:41,159 INFO L85 PathProgramCache]: Analyzing trace with hash 1524419623, now seen corresponding path program 1 times [2022-01-10 13:40:41,160 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:41,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545445295] [2022-01-10 13:40:41,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:41,160 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:41,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:41,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:41,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545445295] [2022-01-10 13:40:41,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545445295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:41,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:41,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 13:40:41,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582020679] [2022-01-10 13:40:41,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:41,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 13:40:41,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:41,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 13:40:41,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 13:40:41,225 INFO L87 Difference]: Start difference. First operand 3646 states and 5922 transitions. Second operand has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:41,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:41,562 INFO L93 Difference]: Finished difference Result 6402 states and 9517 transitions. [2022-01-10 13:40:41,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 13:40:41,563 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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 [2022-01-10 13:40:41,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:41,572 INFO L225 Difference]: With dead ends: 6402 [2022-01-10 13:40:41,572 INFO L226 Difference]: Without dead ends: 4962 [2022-01-10 13:40:41,576 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 13:40:41,576 INFO L933 BasicCegarLoop]: 4999 mSDtfsCounter, 2224 mSDsluCounter, 14765 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2224 SdHoareTripleChecker+Valid, 19764 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:41,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2224 Valid, 19764 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4962 states. [2022-01-10 13:40:41,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4962 to 3652. [2022-01-10 13:40:41,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3652 states, 3649 states have (on average 1.61962181419567) internal successors, (5910), 3651 states have internal predecessors, (5910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3652 states to 3652 states and 5910 transitions. [2022-01-10 13:40:41,803 INFO L78 Accepts]: Start accepts. Automaton has 3652 states and 5910 transitions. Word has length 110 [2022-01-10 13:40:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:41,803 INFO L470 AbstractCegarLoop]: Abstraction has 3652 states and 5910 transitions. [2022-01-10 13:40:41,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.0) internal successors, (110), 5 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) [2022-01-10 13:40:41,803 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5910 transitions. [2022-01-10 13:40:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2022-01-10 13:40:41,804 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:41,804 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] [2022-01-10 13:40:41,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 13:40:41,804 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:41,805 INFO L85 PathProgramCache]: Analyzing trace with hash -659257304, now seen corresponding path program 1 times [2022-01-10 13:40:41,805 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:41,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052515237] [2022-01-10 13:40:41,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:41,805 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:41,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:41,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:41,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052515237] [2022-01-10 13:40:41,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052515237] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:41,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:41,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 13:40:41,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501929889] [2022-01-10 13:40:41,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:41,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:41,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:41,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:41,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:41,863 INFO L87 Difference]: Start difference. First operand 3652 states and 5910 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:42,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:42,084 INFO L93 Difference]: Finished difference Result 6540 states and 9596 transitions. [2022-01-10 13:40:42,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:42,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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 [2022-01-10 13:40:42,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:42,096 INFO L225 Difference]: With dead ends: 6540 [2022-01-10 13:40:42,097 INFO L226 Difference]: Without dead ends: 5040 [2022-01-10 13:40:42,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:42,102 INFO L933 BasicCegarLoop]: 5011 mSDtfsCounter, 4877 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4877 SdHoareTripleChecker+Valid, 5929 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:42,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4877 Valid, 5929 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:42,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2022-01-10 13:40:42,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4924. [2022-01-10 13:40:42,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4924 states, 4921 states have (on average 1.5277382645803699) internal successors, (7518), 4923 states have internal predecessors, (7518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:42,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4924 states to 4924 states and 7518 transitions. [2022-01-10 13:40:42,315 INFO L78 Accepts]: Start accepts. Automaton has 4924 states and 7518 transitions. Word has length 110 [2022-01-10 13:40:42,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:42,316 INFO L470 AbstractCegarLoop]: Abstraction has 4924 states and 7518 transitions. [2022-01-10 13:40:42,316 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 2 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) [2022-01-10 13:40:42,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4924 states and 7518 transitions. [2022-01-10 13:40:42,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:42,318 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:42,318 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:42,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 13:40:42,319 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:42,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:42,319 INFO L85 PathProgramCache]: Analyzing trace with hash 2091855512, now seen corresponding path program 1 times [2022-01-10 13:40:42,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:42,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464187152] [2022-01-10 13:40:42,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:42,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:42,380 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:42,381 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:42,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464187152] [2022-01-10 13:40:42,381 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464187152] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:42,381 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:42,381 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:42,381 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364062170] [2022-01-10 13:40:42,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:42,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:42,382 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:42,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:42,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:42,383 INFO L87 Difference]: Start difference. First operand 4924 states and 7518 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:42,790 INFO L93 Difference]: Finished difference Result 10310 states and 14374 transitions. [2022-01-10 13:40:42,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:42,791 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-10 13:40:42,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:42,804 INFO L225 Difference]: With dead ends: 10310 [2022-01-10 13:40:42,804 INFO L226 Difference]: Without dead ends: 7544 [2022-01-10 13:40:42,810 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:42,810 INFO L933 BasicCegarLoop]: 5008 mSDtfsCounter, 4906 mSDsluCounter, 918 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4906 SdHoareTripleChecker+Valid, 5926 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:42,810 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4906 Valid, 5926 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:42,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7544 states. [2022-01-10 13:40:43,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7544 to 7340. [2022-01-10 13:40:43,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 7337 states have (on average 1.441733678615238) internal successors, (10578), 7339 states have internal predecessors, (10578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:43,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 10578 transitions. [2022-01-10 13:40:43,290 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 10578 transitions. Word has length 178 [2022-01-10 13:40:43,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:43,290 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 10578 transitions. [2022-01-10 13:40:43,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:43,290 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 10578 transitions. [2022-01-10 13:40:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:43,294 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:43,294 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:43,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-10 13:40:43,294 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:43,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:43,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1452187944, now seen corresponding path program 1 times [2022-01-10 13:40:43,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:43,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469063959] [2022-01-10 13:40:43,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:43,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:43,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:43,356 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:43,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:43,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469063959] [2022-01-10 13:40:43,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469063959] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:43,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:43,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:43,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447917850] [2022-01-10 13:40:43,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:43,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:43,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:43,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:43,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:43,357 INFO L87 Difference]: Start difference. First operand 7340 states and 10578 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:44,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:44,039 INFO L93 Difference]: Finished difference Result 17261 states and 23062 transitions. [2022-01-10 13:40:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:44,043 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 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 178 [2022-01-10 13:40:44,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:44,074 INFO L225 Difference]: With dead ends: 17261 [2022-01-10 13:40:44,074 INFO L226 Difference]: Without dead ends: 12143 [2022-01-10 13:40:44,087 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:44,088 INFO L933 BasicCegarLoop]: 5548 mSDtfsCounter, 4745 mSDsluCounter, 1043 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4745 SdHoareTripleChecker+Valid, 6591 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:44,088 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4745 Valid, 6591 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:44,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12143 states. [2022-01-10 13:40:44,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12143 to 12139. [2022-01-10 13:40:44,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12139 states, 12136 states have (on average 1.3618984838497035) internal successors, (16528), 12138 states have internal predecessors, (16528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:44,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12139 states to 12139 states and 16528 transitions. [2022-01-10 13:40:44,892 INFO L78 Accepts]: Start accepts. Automaton has 12139 states and 16528 transitions. Word has length 178 [2022-01-10 13:40:44,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:44,893 INFO L470 AbstractCegarLoop]: Abstraction has 12139 states and 16528 transitions. [2022-01-10 13:40:44,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:44,894 INFO L276 IsEmpty]: Start isEmpty. Operand 12139 states and 16528 transitions. [2022-01-10 13:40:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-01-10 13:40:44,903 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:44,903 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:44,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-10 13:40:44,903 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:44,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:44,904 INFO L85 PathProgramCache]: Analyzing trace with hash -2136418249, now seen corresponding path program 1 times [2022-01-10 13:40:44,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:44,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348643635] [2022-01-10 13:40:44,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:44,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:44,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:44,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:44,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348643635] [2022-01-10 13:40:44,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348643635] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:44,939 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:44,940 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:44,940 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182674445] [2022-01-10 13:40:44,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:44,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:44,941 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:44,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:44,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:44,941 INFO L87 Difference]: Start difference. First operand 12139 states and 16528 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:45,569 INFO L93 Difference]: Finished difference Result 21961 states and 28866 transitions. [2022-01-10 13:40:45,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:45,570 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 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 178 [2022-01-10 13:40:45,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:45,595 INFO L225 Difference]: With dead ends: 21961 [2022-01-10 13:40:45,595 INFO L226 Difference]: Without dead ends: 12044 [2022-01-10 13:40:45,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:45,609 INFO L933 BasicCegarLoop]: 5019 mSDtfsCounter, 1057 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1057 SdHoareTripleChecker+Valid, 8977 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:45,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1057 Valid, 8977 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:45,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12044 states. [2022-01-10 13:40:46,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12044 to 12044. [2022-01-10 13:40:46,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12044 states, 12041 states have (on average 1.363258865542729) internal successors, (16415), 12043 states have internal predecessors, (16415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:46,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12044 states to 12044 states and 16415 transitions. [2022-01-10 13:40:46,337 INFO L78 Accepts]: Start accepts. Automaton has 12044 states and 16415 transitions. Word has length 178 [2022-01-10 13:40:46,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:46,338 INFO L470 AbstractCegarLoop]: Abstraction has 12044 states and 16415 transitions. [2022-01-10 13:40:46,338 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:46,338 INFO L276 IsEmpty]: Start isEmpty. Operand 12044 states and 16415 transitions. [2022-01-10 13:40:46,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 13:40:46,343 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:46,343 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:46,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-10 13:40:46,343 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:46,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:46,344 INFO L85 PathProgramCache]: Analyzing trace with hash 409833945, now seen corresponding path program 1 times [2022-01-10 13:40:46,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:46,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711040007] [2022-01-10 13:40:46,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:46,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:46,390 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:46,390 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:46,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711040007] [2022-01-10 13:40:46,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711040007] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:46,390 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:46,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:46,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054965828] [2022-01-10 13:40:46,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:46,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:46,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:46,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:46,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:46,391 INFO L87 Difference]: Start difference. First operand 12044 states and 16415 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:47,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:47,437 INFO L93 Difference]: Finished difference Result 31278 states and 40465 transitions. [2022-01-10 13:40:47,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:47,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2022-01-10 13:40:47,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:47,470 INFO L225 Difference]: With dead ends: 31278 [2022-01-10 13:40:47,470 INFO L226 Difference]: Without dead ends: 21456 [2022-01-10 13:40:47,487 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:47,488 INFO L933 BasicCegarLoop]: 5308 mSDtfsCounter, 4904 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6339 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:47,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6339 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:47,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21456 states. [2022-01-10 13:40:48,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21456 to 20828. [2022-01-10 13:40:48,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20828 states, 20825 states have (on average 1.3117406962785114) internal successors, (27317), 20827 states have internal predecessors, (27317), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:48,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20828 states to 20828 states and 27317 transitions. [2022-01-10 13:40:48,694 INFO L78 Accepts]: Start accepts. Automaton has 20828 states and 27317 transitions. Word has length 179 [2022-01-10 13:40:48,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:48,695 INFO L470 AbstractCegarLoop]: Abstraction has 20828 states and 27317 transitions. [2022-01-10 13:40:48,695 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 20828 states and 27317 transitions. [2022-01-10 13:40:48,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-01-10 13:40:48,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:48,705 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:48,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-10 13:40:48,705 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:48,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:48,706 INFO L85 PathProgramCache]: Analyzing trace with hash 163613143, now seen corresponding path program 1 times [2022-01-10 13:40:48,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:48,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767113220] [2022-01-10 13:40:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:48,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:48,736 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:48,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:48,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767113220] [2022-01-10 13:40:48,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767113220] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:48,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:48,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:48,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532337418] [2022-01-10 13:40:48,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:48,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:48,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:48,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:48,738 INFO L87 Difference]: Start difference. First operand 20828 states and 27317 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:49,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:49,943 INFO L93 Difference]: Finished difference Result 39393 states and 50508 transitions. [2022-01-10 13:40:49,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:49,944 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 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 179 [2022-01-10 13:40:49,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:49,977 INFO L225 Difference]: With dead ends: 39393 [2022-01-10 13:40:49,978 INFO L226 Difference]: Without dead ends: 20734 [2022-01-10 13:40:50,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:50,003 INFO L933 BasicCegarLoop]: 5018 mSDtfsCounter, 1055 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1055 SdHoareTripleChecker+Valid, 8976 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:50,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1055 Valid, 8976 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:50,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20734 states. [2022-01-10 13:40:51,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20734 to 20734. [2022-01-10 13:40:51,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20734 states, 20731 states have (on average 1.3123341855192707) internal successors, (27206), 20733 states have internal predecessors, (27206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:51,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20734 states to 20734 states and 27206 transitions. [2022-01-10 13:40:51,290 INFO L78 Accepts]: Start accepts. Automaton has 20734 states and 27206 transitions. Word has length 179 [2022-01-10 13:40:51,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:51,290 INFO L470 AbstractCegarLoop]: Abstraction has 20734 states and 27206 transitions. [2022-01-10 13:40:51,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:51,291 INFO L276 IsEmpty]: Start isEmpty. Operand 20734 states and 27206 transitions. [2022-01-10 13:40:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 13:40:51,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:51,300 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:51,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-10 13:40:51,300 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:51,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1274280743, now seen corresponding path program 1 times [2022-01-10 13:40:51,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:51,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908278823] [2022-01-10 13:40:51,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:51,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:51,344 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:40:51,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:51,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908278823] [2022-01-10 13:40:51,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908278823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:51,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:51,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:51,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264401809] [2022-01-10 13:40:51,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:51,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:51,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:51,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:51,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:51,346 INFO L87 Difference]: Start difference. First operand 20734 states and 27206 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:53,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:53,532 INFO L93 Difference]: Finished difference Result 56763 states and 72102 transitions. [2022-01-10 13:40:53,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:53,532 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 180 [2022-01-10 13:40:53,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:53,593 INFO L225 Difference]: With dead ends: 56763 [2022-01-10 13:40:53,593 INFO L226 Difference]: Without dead ends: 38251 [2022-01-10 13:40:53,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:53,626 INFO L933 BasicCegarLoop]: 5272 mSDtfsCounter, 4904 mSDsluCounter, 1029 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6301 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:53,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6301 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 13:40:53,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38251 states. [2022-01-10 13:40:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38251 to 37223. [2022-01-10 13:40:56,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37223 states, 37220 states have (on average 1.2806555615260613) internal successors, (47666), 37222 states have internal predecessors, (47666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:56,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37223 states to 37223 states and 47666 transitions. [2022-01-10 13:40:56,148 INFO L78 Accepts]: Start accepts. Automaton has 37223 states and 47666 transitions. Word has length 180 [2022-01-10 13:40:56,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:40:56,149 INFO L470 AbstractCegarLoop]: Abstraction has 37223 states and 47666 transitions. [2022-01-10 13:40:56,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:56,149 INFO L276 IsEmpty]: Start isEmpty. Operand 37223 states and 47666 transitions. [2022-01-10 13:40:56,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-01-10 13:40:56,161 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:40:56,162 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:40:56,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-10 13:40:56,162 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:40:56,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:40:56,162 INFO L85 PathProgramCache]: Analyzing trace with hash -1782445368, now seen corresponding path program 1 times [2022-01-10 13:40:56,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:40:56,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524168464] [2022-01-10 13:40:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:40:56,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:40:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:40:56,200 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:40:56,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:40:56,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524168464] [2022-01-10 13:40:56,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524168464] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:40:56,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:40:56,201 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:40:56,201 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093910984] [2022-01-10 13:40:56,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:40:56,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:40:56,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:40:56,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:40:56,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:56,202 INFO L87 Difference]: Start difference. First operand 37223 states and 47666 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:40:58,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:40:58,651 INFO L93 Difference]: Finished difference Result 72177 states and 91200 transitions. [2022-01-10 13:40:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:40:58,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 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 180 [2022-01-10 13:40:58,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:40:58,701 INFO L225 Difference]: With dead ends: 72177 [2022-01-10 13:40:58,701 INFO L226 Difference]: Without dead ends: 37130 [2022-01-10 13:40:58,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:40:58,735 INFO L933 BasicCegarLoop]: 5017 mSDtfsCounter, 1053 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 8975 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:40:58,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 8975 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:40:58,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37130 states. [2022-01-10 13:41:00,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37130 to 37130. [2022-01-10 13:41:00,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37130 states, 37127 states have (on average 1.2809276267945162) internal successors, (47557), 37129 states have internal predecessors, (47557), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:00,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37130 states to 37130 states and 47557 transitions. [2022-01-10 13:41:00,977 INFO L78 Accepts]: Start accepts. Automaton has 37130 states and 47557 transitions. Word has length 180 [2022-01-10 13:41:00,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:41:00,977 INFO L470 AbstractCegarLoop]: Abstraction has 37130 states and 47557 transitions. [2022-01-10 13:41:00,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:00,977 INFO L276 IsEmpty]: Start isEmpty. Operand 37130 states and 47557 transitions. [2022-01-10 13:41:00,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 13:41:00,989 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:41:00,989 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:41:00,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-10 13:41:00,989 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:41:00,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:41:00,990 INFO L85 PathProgramCache]: Analyzing trace with hash 1757173645, now seen corresponding path program 1 times [2022-01-10 13:41:00,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:41:00,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947123808] [2022-01-10 13:41:00,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:41:00,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:41:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:41:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:41:01,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:41:01,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947123808] [2022-01-10 13:41:01,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947123808] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:41:01,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:41:01,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:41:01,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560388356] [2022-01-10 13:41:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:41:01,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:41:01,046 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:41:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:41:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:01,046 INFO L87 Difference]: Start difference. First operand 37130 states and 47557 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:05,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:41:05,384 INFO L93 Difference]: Finished difference Result 104534 states and 131347 transitions. [2022-01-10 13:41:05,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:41:05,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 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 181 [2022-01-10 13:41:05,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:41:05,506 INFO L225 Difference]: With dead ends: 104534 [2022-01-10 13:41:05,506 INFO L226 Difference]: Without dead ends: 69626 [2022-01-10 13:41:05,546 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:05,547 INFO L933 BasicCegarLoop]: 5291 mSDtfsCounter, 4904 mSDsluCounter, 1027 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4904 SdHoareTripleChecker+Valid, 6318 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:41:05,547 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4904 Valid, 6318 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:41:05,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69626 states. [2022-01-10 13:41:10,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69626 to 68022. [2022-01-10 13:41:10,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68022 states, 68019 states have (on average 1.262220850056602) internal successors, (85855), 68021 states have internal predecessors, (85855), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:10,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68022 states to 68022 states and 85855 transitions. [2022-01-10 13:41:10,205 INFO L78 Accepts]: Start accepts. Automaton has 68022 states and 85855 transitions. Word has length 181 [2022-01-10 13:41:10,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:41:10,206 INFO L470 AbstractCegarLoop]: Abstraction has 68022 states and 85855 transitions. [2022-01-10 13:41:10,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:10,206 INFO L276 IsEmpty]: Start isEmpty. Operand 68022 states and 85855 transitions. [2022-01-10 13:41:10,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-01-10 13:41:10,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:41:10,229 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:41:10,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-10 13:41:10,230 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:41:10,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:41:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1170528618, now seen corresponding path program 1 times [2022-01-10 13:41:10,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:41:10,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151225553] [2022-01-10 13:41:10,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:41:10,231 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:41:10,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:41:10,398 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-01-10 13:41:10,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:41:10,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151225553] [2022-01-10 13:41:10,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151225553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:41:10,398 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:41:10,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:41:10,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830199288] [2022-01-10 13:41:10,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:41:10,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:41:10,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:41:10,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:41:10,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:10,400 INFO L87 Difference]: Start difference. First operand 68022 states and 85855 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 13:41:15,078 INFO L93 Difference]: Finished difference Result 133769 states and 167572 transitions. [2022-01-10 13:41:15,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 13:41:15,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 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 181 [2022-01-10 13:41:15,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 13:41:15,183 INFO L225 Difference]: With dead ends: 133769 [2022-01-10 13:41:15,183 INFO L226 Difference]: Without dead ends: 67930 [2022-01-10 13:41:15,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:15,231 INFO L933 BasicCegarLoop]: 5016 mSDtfsCounter, 1051 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 8974 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 13:41:15,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 8974 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 13:41:15,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67930 states. [2022-01-10 13:41:19,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67930 to 67930. [2022-01-10 13:41:19,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67930 states, 67927 states have (on average 1.2623551754088949) internal successors, (85748), 67929 states have internal predecessors, (85748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:19,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67930 states to 67930 states and 85748 transitions. [2022-01-10 13:41:19,998 INFO L78 Accepts]: Start accepts. Automaton has 67930 states and 85748 transitions. Word has length 181 [2022-01-10 13:41:19,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 13:41:19,998 INFO L470 AbstractCegarLoop]: Abstraction has 67930 states and 85748 transitions. [2022-01-10 13:41:19,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 13:41:19,998 INFO L276 IsEmpty]: Start isEmpty. Operand 67930 states and 85748 transitions. [2022-01-10 13:41:20,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-01-10 13:41:20,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 13:41:20,022 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 13:41:20,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-10 13:41:20,022 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 13:41:20,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 13:41:20,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1556371761, now seen corresponding path program 1 times [2022-01-10 13:41:20,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 13:41:20,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321803389] [2022-01-10 13:41:20,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 13:41:20,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 13:41:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 13:41:20,072 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 13:41:20,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 13:41:20,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321803389] [2022-01-10 13:41:20,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321803389] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 13:41:20,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 13:41:20,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 13:41:20,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292374499] [2022-01-10 13:41:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 13:41:20,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 13:41:20,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 13:41:20,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 13:41:20,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 13:41:20,073 INFO L87 Difference]: Start difference. First operand 67930 states and 85748 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)