/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:42:02,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:42:02,817 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:42:02,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:42:02,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:42:02,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:42:02,846 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:42:02,851 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:42:02,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:42:02,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:42:02,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:42:02,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:42:02,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:42:02,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:42:02,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:42:02,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:42:02,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:42:02,870 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:42:02,871 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:42:02,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:42:02,873 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:42:02,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:42:02,878 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:42:02,878 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:42:02,880 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:42:02,880 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:42:02,880 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:42:02,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:42:02,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:42:02,882 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:42:02,882 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:42:02,882 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:42:02,883 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:42:02,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:42:02,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:42:02,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:42:02,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:42:02,885 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:42:02,885 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:42:02,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:42:02,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:42:02,898 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:42:02,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:42:02,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:42:02,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:42:02,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:42:02,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:42:02,918 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:42:02,918 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:42:02,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:42:02,919 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:42:02,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:42:02,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:42:02,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:42:02,921 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:42:02,922 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:42:02,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:42:02,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:42:02,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:42:02,923 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:42:02,923 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:42:03,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:42:03,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:42:03,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:42:03,140 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:42:03,141 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:42:03,142 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2022-01-11 05:42:03,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b0885f9/dd561cb2b42f4f68913e9d035e0d6faa/FLAG3b7f90b7c [2022-01-11 05:42:03,617 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:42:03,617 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c [2022-01-11 05:42:03,635 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b0885f9/dd561cb2b42f4f68913e9d035e0d6faa/FLAG3b7f90b7c [2022-01-11 05:42:03,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5b0885f9/dd561cb2b42f4f68913e9d035e0d6faa [2022-01-11 05:42:03,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:42:03,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:42:03,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:42:03,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:42:03,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:42:03,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:42:03" (1/1) ... [2022-01-11 05:42:03,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aaec32e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:03, skipping insertion in model container [2022-01-11 05:42:03,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:42:03" (1/1) ... [2022-01-11 05:42:03,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:42:03,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:42:03,964 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c[37973,37986] [2022-01-11 05:42:04,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:42:04,079 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:42:04,090 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:42:04,144 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c[37973,37986] [2022-01-11 05:42:04,186 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:42:04,193 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:42:04,241 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec27_product29.cil.c[37973,37986] [2022-01-11 05:42:04,261 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:42:04,289 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:42:04,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04 WrapperNode [2022-01-11 05:42:04,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:42:04,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:42:04,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:42:04,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:42:04,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,324 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,399 INFO L137 Inliner]: procedures = 133, calls = 228, calls flagged for inlining = 137, calls inlined = 308, statements flattened = 5084 [2022-01-11 05:42:04,400 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:42:04,401 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:42:04,401 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:42:04,401 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:42:04,407 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:42:04,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:42:04,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:42:04,503 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:42:04,504 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (1/1) ... [2022-01-11 05:42:04,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:42:04,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:42:04,524 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:42:04,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:42:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:42:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:42:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:42:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:42:04,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:42:04,753 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:42:04,754 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:42:06,407 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:42:06,424 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:42:06,424 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:42:06,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:42:06 BoogieIcfgContainer [2022-01-11 05:42:06,427 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:42:06,427 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:42:06,427 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:42:06,429 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:42:06,430 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:42:06" (1/1) ... [2022-01-11 05:42:06,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:42:06 BasicIcfg [2022-01-11 05:42:06,810 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:42:06,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:42:06,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:42:06,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:42:06,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:42:03" (1/4) ... [2022-01-11 05:42:06,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6130bbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:42:06, skipping insertion in model container [2022-01-11 05:42:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:42:04" (2/4) ... [2022-01-11 05:42:06,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6130bbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:42:06, skipping insertion in model container [2022-01-11 05:42:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:42:06" (3/4) ... [2022-01-11 05:42:06,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6130bbc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:42:06, skipping insertion in model container [2022-01-11 05:42:06,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:42:06" (4/4) ... [2022-01-11 05:42:06,817 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec27_product29.cil.cTransformedIcfg [2022-01-11 05:42:06,823 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:42:06,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:42:06,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:42:06,874 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:42:06,875 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:42:06,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 1147 states, 1140 states have (on average 1.7105263157894737) internal successors, (1950), 1146 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:06,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:42:06,918 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:06,918 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] [2022-01-11 05:42:06,919 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:06,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:06,922 INFO L85 PathProgramCache]: Analyzing trace with hash 1540419785, now seen corresponding path program 1 times [2022-01-11 05:42:06,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:06,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795901608] [2022-01-11 05:42:06,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:06,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:07,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:07,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:07,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795901608] [2022-01-11 05:42:07,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795901608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:07,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:07,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:42:07,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299101505] [2022-01-11 05:42:07,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:07,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:42:07,258 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:07,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:42:07,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:42:07,281 INFO L87 Difference]: Start difference. First operand has 1147 states, 1140 states have (on average 1.7105263157894737) internal successors, (1950), 1146 states have internal predecessors, (1950), 0 states have call successors, (0), 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 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:07,356 INFO L93 Difference]: Finished difference Result 1990 states and 3361 transitions. [2022-01-11 05:42:07,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:42:07,358 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2022-01-11 05:42:07,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:07,373 INFO L225 Difference]: With dead ends: 1990 [2022-01-11 05:42:07,373 INFO L226 Difference]: Without dead ends: 1117 [2022-01-11 05:42:07,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:42:07,382 INFO L933 BasicCegarLoop]: 1936 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:07,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1936 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:42:07,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-01-11 05:42:07,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1117. [2022-01-11 05:42:07,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1111 states have (on average 1.7164716471647166) internal successors, (1907), 1116 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1907 transitions. [2022-01-11 05:42:07,462 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1907 transitions. Word has length 72 [2022-01-11 05:42:07,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:07,462 INFO L470 AbstractCegarLoop]: Abstraction has 1117 states and 1907 transitions. [2022-01-11 05:42:07,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.0) internal successors, (72), 2 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1907 transitions. [2022-01-11 05:42:07,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:42:07,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:07,466 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] [2022-01-11 05:42:07,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:42:07,467 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:07,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:07,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1868930759, now seen corresponding path program 1 times [2022-01-11 05:42:07,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:07,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117025970] [2022-01-11 05:42:07,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:07,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:07,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:07,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:07,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:07,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117025970] [2022-01-11 05:42:07,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117025970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:07,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:07,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:42:07,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152602683] [2022-01-11 05:42:07,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:07,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:42:07,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:07,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:42:07,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:42:07,708 INFO L87 Difference]: Start difference. First operand 1117 states and 1907 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:07,829 INFO L93 Difference]: Finished difference Result 2215 states and 3786 transitions. [2022-01-11 05:42:07,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:42:07,830 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2022-01-11 05:42:07,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:07,837 INFO L225 Difference]: With dead ends: 2215 [2022-01-11 05:42:07,837 INFO L226 Difference]: Without dead ends: 1117 [2022-01-11 05:42:07,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:42:07,841 INFO L933 BasicCegarLoop]: 1887 mSDtfsCounter, 1882 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1882 SdHoareTripleChecker+Valid, 1900 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:07,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1882 Valid, 1900 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:42:07,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2022-01-11 05:42:07,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1117. [2022-01-11 05:42:07,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1111 states have (on average 1.7146714671467147) internal successors, (1905), 1116 states have internal predecessors, (1905), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1905 transitions. [2022-01-11 05:42:07,882 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1905 transitions. Word has length 73 [2022-01-11 05:42:07,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:07,883 INFO L470 AbstractCegarLoop]: Abstraction has 1117 states and 1905 transitions. [2022-01-11 05:42:07,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:07,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1905 transitions. [2022-01-11 05:42:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:42:07,891 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:07,891 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] [2022-01-11 05:42:07,891 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:42:07,891 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:07,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:07,892 INFO L85 PathProgramCache]: Analyzing trace with hash 910018681, now seen corresponding path program 1 times [2022-01-11 05:42:07,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:07,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329100696] [2022-01-11 05:42:07,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:07,892 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:08,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:08,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:08,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:08,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329100696] [2022-01-11 05:42:08,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329100696] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:08,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:08,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:42:08,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456145404] [2022-01-11 05:42:08,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:08,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:08,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:08,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:08,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:08,052 INFO L87 Difference]: Start difference. First operand 1117 states and 1905 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:08,342 INFO L93 Difference]: Finished difference Result 5453 states and 9321 transitions. [2022-01-11 05:42:08,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:42:08,343 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2022-01-11 05:42:08,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:08,357 INFO L225 Difference]: With dead ends: 5453 [2022-01-11 05:42:08,358 INFO L226 Difference]: Without dead ends: 4360 [2022-01-11 05:42:08,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:42:08,366 INFO L933 BasicCegarLoop]: 3733 mSDtfsCounter, 9308 mSDsluCounter, 5587 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9308 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:08,366 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9308 Valid, 9320 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:08,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4360 states. [2022-01-11 05:42:08,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4360 to 1117. [2022-01-11 05:42:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1111 states have (on average 1.7137713771377139) internal successors, (1904), 1116 states have internal predecessors, (1904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1904 transitions. [2022-01-11 05:42:08,463 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1904 transitions. Word has length 75 [2022-01-11 05:42:08,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:08,464 INFO L470 AbstractCegarLoop]: Abstraction has 1117 states and 1904 transitions. [2022-01-11 05:42:08,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,464 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1904 transitions. [2022-01-11 05:42:08,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:42:08,466 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:08,466 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:08,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:42:08,467 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:08,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:08,467 INFO L85 PathProgramCache]: Analyzing trace with hash -210872913, now seen corresponding path program 1 times [2022-01-11 05:42:08,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:08,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563324835] [2022-01-11 05:42:08,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:08,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:08,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:08,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:08,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:08,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563324835] [2022-01-11 05:42:08,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563324835] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:08,576 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:08,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:42:08,576 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466247156] [2022-01-11 05:42:08,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:08,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:42:08,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:42:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:42:08,578 INFO L87 Difference]: Start difference. First operand 1117 states and 1904 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:08,630 INFO L93 Difference]: Finished difference Result 2219 states and 3786 transitions. [2022-01-11 05:42:08,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:42:08,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-11 05:42:08,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:08,634 INFO L225 Difference]: With dead ends: 2219 [2022-01-11 05:42:08,634 INFO L226 Difference]: Without dead ends: 1131 [2022-01-11 05:42:08,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:42:08,641 INFO L933 BasicCegarLoop]: 1918 mSDtfsCounter, 1883 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1883 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:08,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1883 Valid, 1940 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:42:08,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1131 states. [2022-01-11 05:42:08,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1131 to 1117. [2022-01-11 05:42:08,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1111 states have (on average 1.7128712871287128) internal successors, (1903), 1116 states have internal predecessors, (1903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1903 transitions. [2022-01-11 05:42:08,683 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1903 transitions. Word has length 76 [2022-01-11 05:42:08,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:08,683 INFO L470 AbstractCegarLoop]: Abstraction has 1117 states and 1903 transitions. [2022-01-11 05:42:08,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1903 transitions. [2022-01-11 05:42:08,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:42:08,684 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:08,685 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] [2022-01-11 05:42:08,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:42:08,685 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:08,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:08,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2108868390, now seen corresponding path program 1 times [2022-01-11 05:42:08,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:08,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511355899] [2022-01-11 05:42:08,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:08,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:08,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:08,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:08,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511355899] [2022-01-11 05:42:08,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511355899] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:08,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:08,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:42:08,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998172024] [2022-01-11 05:42:08,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:08,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:08,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:08,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:08,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:08,805 INFO L87 Difference]: Start difference. First operand 1117 states and 1903 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:08,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:08,990 INFO L93 Difference]: Finished difference Result 3285 states and 5609 transitions. [2022-01-11 05:42:08,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:42:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2022-01-11 05:42:08,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:08,997 INFO L225 Difference]: With dead ends: 3285 [2022-01-11 05:42:08,997 INFO L226 Difference]: Without dead ends: 2202 [2022-01-11 05:42:08,998 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 [2022-01-11 05:42:08,999 INFO L933 BasicCegarLoop]: 1912 mSDtfsCounter, 9231 mSDsluCounter, 1926 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9231 SdHoareTripleChecker+Valid, 3838 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:08,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9231 Valid, 3838 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:09,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2022-01-11 05:42:09,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 1117. [2022-01-11 05:42:09,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1117 states, 1111 states have (on average 1.711071107110711) internal successors, (1901), 1116 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:09,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1117 states to 1117 states and 1901 transitions. [2022-01-11 05:42:09,045 INFO L78 Accepts]: Start accepts. Automaton has 1117 states and 1901 transitions. Word has length 77 [2022-01-11 05:42:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:09,045 INFO L470 AbstractCegarLoop]: Abstraction has 1117 states and 1901 transitions. [2022-01-11 05:42:09,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 1117 states and 1901 transitions. [2022-01-11 05:42:09,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:42:09,046 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:09,046 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:09,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:42:09,046 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1937011191, now seen corresponding path program 1 times [2022-01-11 05:42:09,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:09,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984362110] [2022-01-11 05:42:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:09,047 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:09,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:09,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:09,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:09,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984362110] [2022-01-11 05:42:09,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984362110] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:09,131 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:09,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:42:09,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301559412] [2022-01-11 05:42:09,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:09,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:42:09,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:09,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:42:09,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:42:09,133 INFO L87 Difference]: Start difference. First operand 1117 states and 1901 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:09,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:09,872 INFO L93 Difference]: Finished difference Result 9136 states and 15418 transitions. [2022-01-11 05:42:09,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:42:09,873 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:42:09,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:09,896 INFO L225 Difference]: With dead ends: 9136 [2022-01-11 05:42:09,896 INFO L226 Difference]: Without dead ends: 8336 [2022-01-11 05:42:09,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:42:09,899 INFO L933 BasicCegarLoop]: 3837 mSDtfsCounter, 16058 mSDsluCounter, 13339 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16058 SdHoareTripleChecker+Valid, 17176 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:09,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16058 Valid, 17176 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:42:09,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8336 states. [2022-01-11 05:42:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8336 to 1825. [2022-01-11 05:42:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1819 states have (on average 1.7130291368884003) internal successors, (3116), 1824 states have internal predecessors, (3116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 3116 transitions. [2022-01-11 05:42:10,031 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 3116 transitions. Word has length 79 [2022-01-11 05:42:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:10,032 INFO L470 AbstractCegarLoop]: Abstraction has 1825 states and 3116 transitions. [2022-01-11 05:42:10,032 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,032 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 3116 transitions. [2022-01-11 05:42:10,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 05:42:10,034 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:10,034 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] [2022-01-11 05:42:10,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:42:10,034 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:10,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:10,035 INFO L85 PathProgramCache]: Analyzing trace with hash -637359681, now seen corresponding path program 1 times [2022-01-11 05:42:10,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:10,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567700526] [2022-01-11 05:42:10,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:10,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:10,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:10,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:10,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567700526] [2022-01-11 05:42:10,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567700526] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:10,140 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:10,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:42:10,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098279574] [2022-01-11 05:42:10,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:10,141 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:10,141 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:10,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:10,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:10,141 INFO L87 Difference]: Start difference. First operand 1825 states and 3116 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:10,370 INFO L93 Difference]: Finished difference Result 4038 states and 6818 transitions. [2022-01-11 05:42:10,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:42:10,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-11 05:42:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:10,377 INFO L225 Difference]: With dead ends: 4038 [2022-01-11 05:42:10,378 INFO L226 Difference]: Without dead ends: 2819 [2022-01-11 05:42:10,380 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 [2022-01-11 05:42:10,381 INFO L933 BasicCegarLoop]: 1883 mSDtfsCounter, 6853 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6853 SdHoareTripleChecker+Valid, 4066 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:10,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6853 Valid, 4066 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:10,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2022-01-11 05:42:10,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 1825. [2022-01-11 05:42:10,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1819 states have (on average 1.7108301264431005) internal successors, (3112), 1824 states have internal predecessors, (3112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 3112 transitions. [2022-01-11 05:42:10,471 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 3112 transitions. Word has length 80 [2022-01-11 05:42:10,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:10,471 INFO L470 AbstractCegarLoop]: Abstraction has 1825 states and 3112 transitions. [2022-01-11 05:42:10,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 3112 transitions. [2022-01-11 05:42:10,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 05:42:10,473 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:10,473 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] [2022-01-11 05:42:10,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:42:10,474 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:10,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:10,474 INFO L85 PathProgramCache]: Analyzing trace with hash -1440058263, now seen corresponding path program 1 times [2022-01-11 05:42:10,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:10,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066770354] [2022-01-11 05:42:10,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:10,474 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:10,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:10,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:10,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066770354] [2022-01-11 05:42:10,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066770354] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:10,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:10,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:42:10,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694365647] [2022-01-11 05:42:10,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:10,540 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:10,540 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:10,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:10,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:10,541 INFO L87 Difference]: Start difference. First operand 1825 states and 3112 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:10,781 INFO L93 Difference]: Finished difference Result 5352 states and 9165 transitions. [2022-01-11 05:42:10,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:42:10,782 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2022-01-11 05:42:10,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:10,792 INFO L225 Difference]: With dead ends: 5352 [2022-01-11 05:42:10,792 INFO L226 Difference]: Without dead ends: 3564 [2022-01-11 05:42:10,794 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 [2022-01-11 05:42:10,794 INFO L933 BasicCegarLoop]: 3701 mSDtfsCounter, 5634 mSDsluCounter, 1852 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5634 SdHoareTripleChecker+Valid, 5553 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:10,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5634 Valid, 5553 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:42:10,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2022-01-11 05:42:10,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 1825. [2022-01-11 05:42:10,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1825 states, 1819 states have (on average 1.7097306212204508) internal successors, (3110), 1824 states have internal predecessors, (3110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1825 states to 1825 states and 3110 transitions. [2022-01-11 05:42:10,890 INFO L78 Accepts]: Start accepts. Automaton has 1825 states and 3110 transitions. Word has length 80 [2022-01-11 05:42:10,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:10,890 INFO L470 AbstractCegarLoop]: Abstraction has 1825 states and 3110 transitions. [2022-01-11 05:42:10,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:10,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1825 states and 3110 transitions. [2022-01-11 05:42:10,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-01-11 05:42:10,892 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:10,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:10,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:42:10,892 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:10,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:10,892 INFO L85 PathProgramCache]: Analyzing trace with hash 238578118, now seen corresponding path program 1 times [2022-01-11 05:42:10,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:10,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864921678] [2022-01-11 05:42:10,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:10,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:11,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:11,005 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:11,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864921678] [2022-01-11 05:42:11,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864921678] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:11,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:11,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:42:11,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651460335] [2022-01-11 05:42:11,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:11,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:42:11,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:11,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:42:11,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:42:11,006 INFO L87 Difference]: Start difference. First operand 1825 states and 3110 transitions. Second operand has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:12,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:12,679 INFO L93 Difference]: Finished difference Result 8975 states and 15002 transitions. [2022-01-11 05:42:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:42:12,680 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2022-01-11 05:42:12,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:12,695 INFO L225 Difference]: With dead ends: 8975 [2022-01-11 05:42:12,695 INFO L226 Difference]: Without dead ends: 7872 [2022-01-11 05:42:12,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:42:12,698 INFO L933 BasicCegarLoop]: 2897 mSDtfsCounter, 14841 mSDsluCounter, 16486 mSDsCounter, 0 mSdLazyCounter, 1249 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14841 SdHoareTripleChecker+Valid, 19383 SdHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:12,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14841 Valid, 19383 Invalid, 1309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1249 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-11 05:42:12,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7872 states. [2022-01-11 05:42:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7872 to 3387. [2022-01-11 05:42:12,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3381 states have (on average 1.7154687962141377) internal successors, (5800), 3386 states have internal predecessors, (5800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:12,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 5800 transitions. [2022-01-11 05:42:12,933 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 5800 transitions. Word has length 81 [2022-01-11 05:42:12,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:12,933 INFO L470 AbstractCegarLoop]: Abstraction has 3387 states and 5800 transitions. [2022-01-11 05:42:12,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.0) internal successors, (81), 8 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:12,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 5800 transitions. [2022-01-11 05:42:12,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:42:12,936 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:12,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:12,937 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:42:12,937 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:12,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash -775083596, now seen corresponding path program 1 times [2022-01-11 05:42:12,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:12,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335381789] [2022-01-11 05:42:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:12,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:13,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:13,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:13,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335381789] [2022-01-11 05:42:13,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335381789] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:13,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:13,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:42:13,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832967597] [2022-01-11 05:42:13,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:13,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:42:13,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:13,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:42:13,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:42:13,069 INFO L87 Difference]: Start difference. First operand 3387 states and 5800 transitions. Second operand has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:15,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:15,082 INFO L93 Difference]: Finished difference Result 15101 states and 25282 transitions. [2022-01-11 05:42:15,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:42:15,082 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 05:42:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:15,107 INFO L225 Difference]: With dead ends: 15101 [2022-01-11 05:42:15,107 INFO L226 Difference]: Without dead ends: 13108 [2022-01-11 05:42:15,113 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:42:15,113 INFO L933 BasicCegarLoop]: 2761 mSDtfsCounter, 14827 mSDsluCounter, 15781 mSDsCounter, 0 mSdLazyCounter, 1244 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14827 SdHoareTripleChecker+Valid, 18542 SdHoareTripleChecker+Invalid, 1304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 1244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:15,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14827 Valid, 18542 Invalid, 1304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 1244 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-01-11 05:42:15,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13108 states. [2022-01-11 05:42:15,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13108 to 6527. [2022-01-11 05:42:15,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6527 states, 6521 states have (on average 1.7182947400705413) internal successors, (11205), 6526 states have internal predecessors, (11205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:15,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6527 states to 6527 states and 11205 transitions. [2022-01-11 05:42:15,610 INFO L78 Accepts]: Start accepts. Automaton has 6527 states and 11205 transitions. Word has length 82 [2022-01-11 05:42:15,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:15,612 INFO L470 AbstractCegarLoop]: Abstraction has 6527 states and 11205 transitions. [2022-01-11 05:42:15,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.11111111111111) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:15,612 INFO L276 IsEmpty]: Start isEmpty. Operand 6527 states and 11205 transitions. [2022-01-11 05:42:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:42:15,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:15,622 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:15,622 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:42:15,623 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:15,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:15,623 INFO L85 PathProgramCache]: Analyzing trace with hash -763767469, now seen corresponding path program 1 times [2022-01-11 05:42:15,623 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:15,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090701724] [2022-01-11 05:42:15,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:15,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:15,745 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:15,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:15,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090701724] [2022-01-11 05:42:15,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090701724] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:15,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:15,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:42:15,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522583663] [2022-01-11 05:42:15,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:15,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:42:15,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:15,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:42:15,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:42:15,747 INFO L87 Difference]: Start difference. First operand 6527 states and 11205 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:17,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:17,468 INFO L93 Difference]: Finished difference Result 23126 states and 39402 transitions. [2022-01-11 05:42:17,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:42:17,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 05:42:17,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:17,503 INFO L225 Difference]: With dead ends: 23126 [2022-01-11 05:42:17,504 INFO L226 Difference]: Without dead ends: 21088 [2022-01-11 05:42:17,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:42:17,512 INFO L933 BasicCegarLoop]: 4403 mSDtfsCounter, 11571 mSDsluCounter, 13397 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11571 SdHoareTripleChecker+Valid, 17800 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:17,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11571 Valid, 17800 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:42:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21088 states. [2022-01-11 05:42:18,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21088 to 7340. [2022-01-11 05:42:18,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7340 states, 7334 states have (on average 1.7136623943277884) internal successors, (12568), 7339 states have internal predecessors, (12568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:18,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7340 states to 7340 states and 12568 transitions. [2022-01-11 05:42:18,066 INFO L78 Accepts]: Start accepts. Automaton has 7340 states and 12568 transitions. Word has length 82 [2022-01-11 05:42:18,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:18,067 INFO L470 AbstractCegarLoop]: Abstraction has 7340 states and 12568 transitions. [2022-01-11 05:42:18,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 6 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:18,067 INFO L276 IsEmpty]: Start isEmpty. Operand 7340 states and 12568 transitions. [2022-01-11 05:42:18,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2022-01-11 05:42:18,073 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:18,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:18,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:42:18,073 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:18,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:18,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1565058554, now seen corresponding path program 1 times [2022-01-11 05:42:18,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:18,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641047482] [2022-01-11 05:42:18,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:18,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:18,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:18,165 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:18,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641047482] [2022-01-11 05:42:18,166 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641047482] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:18,166 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:18,166 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:42:18,166 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857585512] [2022-01-11 05:42:18,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:18,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:18,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:18,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:18,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:18,167 INFO L87 Difference]: Start difference. First operand 7340 states and 12568 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:20,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:20,664 INFO L93 Difference]: Finished difference Result 31812 states and 53384 transitions. [2022-01-11 05:42:20,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:42:20,664 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 82 [2022-01-11 05:42:20,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:20,713 INFO L225 Difference]: With dead ends: 31812 [2022-01-11 05:42:20,713 INFO L226 Difference]: Without dead ends: 27986 [2022-01-11 05:42:20,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:42:20,723 INFO L933 BasicCegarLoop]: 1911 mSDtfsCounter, 8581 mSDsluCounter, 8070 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8581 SdHoareTripleChecker+Valid, 9981 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:20,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8581 Valid, 9981 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:42:20,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27986 states. [2022-01-11 05:42:21,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27986 to 11834. [2022-01-11 05:42:21,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11834 states, 11828 states have (on average 1.6897193101115997) internal successors, (19986), 11833 states have internal predecessors, (19986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:21,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11834 states to 11834 states and 19986 transitions. [2022-01-11 05:42:21,904 INFO L78 Accepts]: Start accepts. Automaton has 11834 states and 19986 transitions. Word has length 82 [2022-01-11 05:42:21,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:21,904 INFO L470 AbstractCegarLoop]: Abstraction has 11834 states and 19986 transitions. [2022-01-11 05:42:21,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:21,904 INFO L276 IsEmpty]: Start isEmpty. Operand 11834 states and 19986 transitions. [2022-01-11 05:42:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:42:21,911 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:21,911 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:21,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:42:21,911 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:21,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:21,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1869510480, now seen corresponding path program 1 times [2022-01-11 05:42:21,912 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:21,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413519985] [2022-01-11 05:42:21,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:21,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:21,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:21,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:21,997 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:21,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413519985] [2022-01-11 05:42:21,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413519985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:21,998 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:21,998 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:42:21,998 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781558749] [2022-01-11 05:42:21,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:21,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:42:21,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:21,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:42:21,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:21,999 INFO L87 Difference]: Start difference. First operand 11834 states and 19986 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:24,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:24,922 INFO L93 Difference]: Finished difference Result 38908 states and 64986 transitions. [2022-01-11 05:42:24,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:42:24,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 05:42:24,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:24,984 INFO L225 Difference]: With dead ends: 38908 [2022-01-11 05:42:24,984 INFO L226 Difference]: Without dead ends: 32300 [2022-01-11 05:42:24,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:42:24,999 INFO L933 BasicCegarLoop]: 2928 mSDtfsCounter, 4714 mSDsluCounter, 8653 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4714 SdHoareTripleChecker+Valid, 11581 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:24,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4714 Valid, 11581 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32300 states. [2022-01-11 05:42:26,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32300 to 11966. [2022-01-11 05:42:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11966 states, 11960 states have (on average 1.6821070234113713) internal successors, (20118), 11965 states have internal predecessors, (20118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:26,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11966 states to 11966 states and 20118 transitions. [2022-01-11 05:42:26,329 INFO L78 Accepts]: Start accepts. Automaton has 11966 states and 20118 transitions. Word has length 83 [2022-01-11 05:42:26,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:26,329 INFO L470 AbstractCegarLoop]: Abstraction has 11966 states and 20118 transitions. [2022-01-11 05:42:26,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:26,329 INFO L276 IsEmpty]: Start isEmpty. Operand 11966 states and 20118 transitions. [2022-01-11 05:42:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-01-11 05:42:26,336 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:26,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:26,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:42:26,336 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:26,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:26,337 INFO L85 PathProgramCache]: Analyzing trace with hash 52812785, now seen corresponding path program 1 times [2022-01-11 05:42:26,337 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:26,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895959280] [2022-01-11 05:42:26,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:26,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:26,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:26,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:26,424 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:26,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895959280] [2022-01-11 05:42:26,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895959280] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:26,424 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:26,424 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:42:26,424 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763843030] [2022-01-11 05:42:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:26,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:42:26,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:42:26,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:42:26,425 INFO L87 Difference]: Start difference. First operand 11966 states and 20118 transitions. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:29,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:29,684 INFO L93 Difference]: Finished difference Result 38856 states and 64504 transitions. [2022-01-11 05:42:29,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 05:42:29,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 83 [2022-01-11 05:42:29,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:29,733 INFO L225 Difference]: With dead ends: 38856 [2022-01-11 05:42:29,733 INFO L226 Difference]: Without dead ends: 30388 [2022-01-11 05:42:29,749 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-11 05:42:29,750 INFO L933 BasicCegarLoop]: 2164 mSDtfsCounter, 7740 mSDsluCounter, 7733 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7740 SdHoareTripleChecker+Valid, 9897 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:29,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7740 Valid, 9897 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:42:29,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30388 states. [2022-01-11 05:42:31,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30388 to 13812. [2022-01-11 05:42:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13812 states, 13806 states have (on average 1.6699985513544835) internal successors, (23056), 13811 states have internal predecessors, (23056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13812 states to 13812 states and 23056 transitions. [2022-01-11 05:42:31,126 INFO L78 Accepts]: Start accepts. Automaton has 13812 states and 23056 transitions. Word has length 83 [2022-01-11 05:42:31,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:31,126 INFO L470 AbstractCegarLoop]: Abstraction has 13812 states and 23056 transitions. [2022-01-11 05:42:31,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 13812 states and 23056 transitions. [2022-01-11 05:42:31,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 05:42:31,133 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:31,133 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] [2022-01-11 05:42:31,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:42:31,133 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:31,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:31,134 INFO L85 PathProgramCache]: Analyzing trace with hash -313073715, now seen corresponding path program 1 times [2022-01-11 05:42:31,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:31,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850210216] [2022-01-11 05:42:31,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:31,134 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:31,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:31,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:31,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850210216] [2022-01-11 05:42:31,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850210216] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:31,223 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:31,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-11 05:42:31,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509401939] [2022-01-11 05:42:31,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:31,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:42:31,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:31,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:42:31,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:42:31,224 INFO L87 Difference]: Start difference. First operand 13812 states and 23056 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:33,045 INFO L93 Difference]: Finished difference Result 27448 states and 45613 transitions. [2022-01-11 05:42:33,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-11 05:42:33,054 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-11 05:42:33,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:33,077 INFO L225 Difference]: With dead ends: 27448 [2022-01-11 05:42:33,077 INFO L226 Difference]: Without dead ends: 16048 [2022-01-11 05:42:33,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=132, Invalid=288, Unknown=0, NotChecked=0, Total=420 [2022-01-11 05:42:33,092 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 8039 mSDsluCounter, 6947 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8039 SdHoareTripleChecker+Valid, 8790 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:33,092 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8039 Valid, 8790 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:33,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16048 states. [2022-01-11 05:42:34,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16048 to 13812. [2022-01-11 05:42:34,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13812 states, 13806 states have (on average 1.6636245110821382) internal successors, (22968), 13811 states have internal predecessors, (22968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:34,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13812 states to 13812 states and 22968 transitions. [2022-01-11 05:42:34,608 INFO L78 Accepts]: Start accepts. Automaton has 13812 states and 22968 transitions. Word has length 84 [2022-01-11 05:42:34,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:34,608 INFO L470 AbstractCegarLoop]: Abstraction has 13812 states and 22968 transitions. [2022-01-11 05:42:34,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 9 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:34,608 INFO L276 IsEmpty]: Start isEmpty. Operand 13812 states and 22968 transitions. [2022-01-11 05:42:34,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-01-11 05:42:34,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:34,614 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] [2022-01-11 05:42:34,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:42:34,615 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:34,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:34,615 INFO L85 PathProgramCache]: Analyzing trace with hash 931690766, now seen corresponding path program 1 times [2022-01-11 05:42:34,615 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:34,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810197887] [2022-01-11 05:42:34,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:34,615 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:34,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:34,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:34,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810197887] [2022-01-11 05:42:34,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810197887] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:34,693 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:34,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:42:34,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823131825] [2022-01-11 05:42:34,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:34,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:42:34,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:34,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:42:34,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:42:34,694 INFO L87 Difference]: Start difference. First operand 13812 states and 22968 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:37,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:37,210 INFO L93 Difference]: Finished difference Result 32154 states and 53210 transitions. [2022-01-11 05:42:37,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:42:37,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2022-01-11 05:42:37,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:37,238 INFO L225 Difference]: With dead ends: 32154 [2022-01-11 05:42:37,238 INFO L226 Difference]: Without dead ends: 22544 [2022-01-11 05:42:37,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:37,247 INFO L933 BasicCegarLoop]: 3064 mSDtfsCounter, 2289 mSDsluCounter, 4030 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2289 SdHoareTripleChecker+Valid, 7094 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:37,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2289 Valid, 7094 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:42:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22544 states. [2022-01-11 05:42:38,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22544 to 13844. [2022-01-11 05:42:38,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13844 states, 13838 states have (on average 1.6516837693308282) internal successors, (22856), 13843 states have internal predecessors, (22856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:38,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13844 states to 13844 states and 22856 transitions. [2022-01-11 05:42:38,711 INFO L78 Accepts]: Start accepts. Automaton has 13844 states and 22856 transitions. Word has length 84 [2022-01-11 05:42:38,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:38,711 INFO L470 AbstractCegarLoop]: Abstraction has 13844 states and 22856 transitions. [2022-01-11 05:42:38,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:38,711 INFO L276 IsEmpty]: Start isEmpty. Operand 13844 states and 22856 transitions. [2022-01-11 05:42:38,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:42:38,717 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:38,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:38,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 05:42:38,718 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:38,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:38,719 INFO L85 PathProgramCache]: Analyzing trace with hash -691900251, now seen corresponding path program 1 times [2022-01-11 05:42:38,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:38,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348135339] [2022-01-11 05:42:38,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:38,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:38,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:38,872 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:38,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348135339] [2022-01-11 05:42:38,872 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348135339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:38,872 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:38,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-11 05:42:38,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553378755] [2022-01-11 05:42:38,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:38,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-11 05:42:38,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:38,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-11 05:42:38,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:42:38,874 INFO L87 Difference]: Start difference. First operand 13844 states and 22856 transitions. Second operand has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:40,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:40,890 INFO L93 Difference]: Finished difference Result 25554 states and 41963 transitions. [2022-01-11 05:42:40,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:42:40,891 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-11 05:42:40,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:40,917 INFO L225 Difference]: With dead ends: 25554 [2022-01-11 05:42:40,917 INFO L226 Difference]: Without dead ends: 16040 [2022-01-11 05:42:40,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=421, Unknown=0, NotChecked=0, Total=600 [2022-01-11 05:42:40,929 INFO L933 BasicCegarLoop]: 1822 mSDtfsCounter, 8770 mSDsluCounter, 9277 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8770 SdHoareTripleChecker+Valid, 11099 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:40,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8770 Valid, 11099 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:42:40,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16040 states. [2022-01-11 05:42:42,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16040 to 12692. [2022-01-11 05:42:42,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12692 states, 12686 states have (on average 1.6503231909191234) internal successors, (20936), 12691 states have internal predecessors, (20936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12692 states to 12692 states and 20936 transitions. [2022-01-11 05:42:42,286 INFO L78 Accepts]: Start accepts. Automaton has 12692 states and 20936 transitions. Word has length 86 [2022-01-11 05:42:42,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:42,286 INFO L470 AbstractCegarLoop]: Abstraction has 12692 states and 20936 transitions. [2022-01-11 05:42:42,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 7.818181818181818) internal successors, (86), 11 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:42,287 INFO L276 IsEmpty]: Start isEmpty. Operand 12692 states and 20936 transitions. [2022-01-11 05:42:42,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:42:42,292 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:42,292 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:42,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 05:42:42,293 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:42,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:42,293 INFO L85 PathProgramCache]: Analyzing trace with hash 653266238, now seen corresponding path program 1 times [2022-01-11 05:42:42,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:42,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672676802] [2022-01-11 05:42:42,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:42,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:42,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:42,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:42,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672676802] [2022-01-11 05:42:42,361 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672676802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:42,361 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:42,361 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:42:42,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233013857] [2022-01-11 05:42:42,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:42,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:42:42,362 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:42,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:42:42,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:42:42,362 INFO L87 Difference]: Start difference. First operand 12692 states and 20936 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:46,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:46,792 INFO L93 Difference]: Finished difference Result 41462 states and 66606 transitions. [2022-01-11 05:42:46,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:42:46,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-11 05:42:46,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:46,833 INFO L225 Difference]: With dead ends: 41462 [2022-01-11 05:42:46,834 INFO L226 Difference]: Without dead ends: 31548 [2022-01-11 05:42:46,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:46,845 INFO L933 BasicCegarLoop]: 2647 mSDtfsCounter, 2487 mSDsluCounter, 4060 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2487 SdHoareTripleChecker+Valid, 6707 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:46,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2487 Valid, 6707 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 05:42:46,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31548 states. [2022-01-11 05:42:48,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31548 to 12804. [2022-01-11 05:42:48,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12804 states, 12798 states have (on average 1.6446319737458979) internal successors, (21048), 12803 states have internal predecessors, (21048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:48,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12804 states to 12804 states and 21048 transitions. [2022-01-11 05:42:48,422 INFO L78 Accepts]: Start accepts. Automaton has 12804 states and 21048 transitions. Word has length 86 [2022-01-11 05:42:48,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:48,423 INFO L470 AbstractCegarLoop]: Abstraction has 12804 states and 21048 transitions. [2022-01-11 05:42:48,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:48,423 INFO L276 IsEmpty]: Start isEmpty. Operand 12804 states and 21048 transitions. [2022-01-11 05:42:48,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:42:48,428 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:48,428 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:48,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-11 05:42:48,429 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:48,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash -2036873350, now seen corresponding path program 1 times [2022-01-11 05:42:48,429 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:48,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097897787] [2022-01-11 05:42:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:48,429 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:48,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:48,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:48,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097897787] [2022-01-11 05:42:48,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097897787] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:48,527 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:48,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:42:48,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384351483] [2022-01-11 05:42:48,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:48,529 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-11 05:42:48,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:48,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-11 05:42:48,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:42:48,530 INFO L87 Difference]: Start difference. First operand 12804 states and 21048 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:53,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:53,945 INFO L93 Difference]: Finished difference Result 45460 states and 74443 transitions. [2022-01-11 05:42:53,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:42:53,946 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-11 05:42:53,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:53,998 INFO L225 Difference]: With dead ends: 45460 [2022-01-11 05:42:53,998 INFO L226 Difference]: Without dead ends: 36186 [2022-01-11 05:42:54,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=314, Unknown=0, NotChecked=0, Total=462 [2022-01-11 05:42:54,012 INFO L933 BasicCegarLoop]: 4226 mSDtfsCounter, 11148 mSDsluCounter, 14990 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11148 SdHoareTripleChecker+Valid, 19216 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:54,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11148 Valid, 19216 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-11 05:42:54,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36186 states. [2022-01-11 05:42:55,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36186 to 15432. [2022-01-11 05:42:56,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 15426 states have (on average 1.6391806041747699) internal successors, (25286), 15431 states have internal predecessors, (25286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:56,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 25286 transitions. [2022-01-11 05:42:56,029 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 25286 transitions. Word has length 86 [2022-01-11 05:42:56,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:42:56,029 INFO L470 AbstractCegarLoop]: Abstraction has 15432 states and 25286 transitions. [2022-01-11 05:42:56,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:56,029 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 25286 transitions. [2022-01-11 05:42:56,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:42:56,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:42:56,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:42:56,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-11 05:42:56,036 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:42:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:42:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 899873384, now seen corresponding path program 1 times [2022-01-11 05:42:56,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:42:56,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754174366] [2022-01-11 05:42:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:42:56,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:42:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:42:56,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:42:56,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:42:56,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754174366] [2022-01-11 05:42:56,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754174366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:42:56,103 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:42:56,103 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:42:56,103 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307332548] [2022-01-11 05:42:56,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:42:56,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:42:56,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:42:56,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:42:56,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:42:56,104 INFO L87 Difference]: Start difference. First operand 15432 states and 25286 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:42:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:42:58,529 INFO L93 Difference]: Finished difference Result 21858 states and 35685 transitions. [2022-01-11 05:42:58,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:42:58,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2022-01-11 05:42:58,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:42:58,554 INFO L225 Difference]: With dead ends: 21858 [2022-01-11 05:42:58,554 INFO L226 Difference]: Without dead ends: 18788 [2022-01-11 05:42:58,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:42:58,559 INFO L933 BasicCegarLoop]: 1878 mSDtfsCounter, 3776 mSDsluCounter, 2129 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3776 SdHoareTripleChecker+Valid, 4007 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:42:58,559 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3776 Valid, 4007 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:42:58,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18788 states. [2022-01-11 05:43:00,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18788 to 15432. [2022-01-11 05:43:00,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15432 states, 15426 states have (on average 1.6390509529366006) internal successors, (25284), 15431 states have internal predecessors, (25284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:43:00,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15432 states to 15432 states and 25284 transitions. [2022-01-11 05:43:00,534 INFO L78 Accepts]: Start accepts. Automaton has 15432 states and 25284 transitions. Word has length 86 [2022-01-11 05:43:00,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:43:00,534 INFO L470 AbstractCegarLoop]: Abstraction has 15432 states and 25284 transitions. [2022-01-11 05:43:00,534 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:43:00,534 INFO L276 IsEmpty]: Start isEmpty. Operand 15432 states and 25284 transitions. [2022-01-11 05:43:00,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-01-11 05:43:00,539 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:43:00,539 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:43:00,539 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-11 05:43:00,540 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:43:00,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:43:00,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1424154455, now seen corresponding path program 1 times [2022-01-11 05:43:00,540 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:43:00,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912485859] [2022-01-11 05:43:00,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:43:00,540 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:43:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:43:00,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:43:00,621 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:43:00,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912485859] [2022-01-11 05:43:00,622 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912485859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:43:00,622 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:43:00,622 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:43:00,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124094496] [2022-01-11 05:43:00,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:43:00,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:43:00,623 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:43:00,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:43:00,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:43:00,623 INFO L87 Difference]: Start difference. First operand 15432 states and 25284 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)