/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_spec0_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:37:24,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:37:24,814 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:37:24,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:37:24,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:37:24,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:37:24,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:37:24,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:37:24,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:37:24,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:37:24,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:37:24,879 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:37:24,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:37:24,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:37:24,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:37:24,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:37:24,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:37:24,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:37:24,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:37:24,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:37:24,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:37:24,886 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:37:24,887 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:37:24,887 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:37:24,889 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:37:24,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:37:24,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:37:24,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:37:24,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:37:24,891 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:37:24,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:37:24,891 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:37:24,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:37:24,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:37:24,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:37:24,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:37:24,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:37:24,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:37:24,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:37:24,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:37:24,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:37:24,898 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 05:37:24,926 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:37:24,926 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:37:24,926 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:37:24,927 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:37:24,927 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:37:24,927 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:37:24,927 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:37:24,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:37:24,928 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:37:24,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:37:24,929 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:37:24,929 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:37:24,930 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:37:24,930 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:37:24,930 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:37:24,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:37:25,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:37:25,156 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:37:25,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:37:25,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:37:25,159 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:37:25,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2022-01-11 05:37:25,224 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d69f47a/321e040ec42c47639180a6c1dc0718d9/FLAG51a43cb36 [2022-01-11 05:37:25,661 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:37:25,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product26.cil.c [2022-01-11 05:37:25,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d69f47a/321e040ec42c47639180a6c1dc0718d9/FLAG51a43cb36 [2022-01-11 05:37:25,964 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40d69f47a/321e040ec42c47639180a6c1dc0718d9 [2022-01-11 05:37:25,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:37:25,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:37:25,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:37:25,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:37:25,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:37:25,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:37:25" (1/1) ... [2022-01-11 05:37:25,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3232b2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:25, skipping insertion in model container [2022-01-11 05:37:25,979 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:37:25" (1/1) ... [2022-01-11 05:37:25,984 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:37:26,062 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:37:26,465 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_spec0_product26.cil.c[63882,63895] [2022-01-11 05:37:26,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:37:26,481 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:37:26,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:37:26,580 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_spec0_product26.cil.c[63882,63895] [2022-01-11 05:37:26,580 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:37:26,586 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:37:26,661 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_spec0_product26.cil.c[63882,63895] [2022-01-11 05:37:26,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:37:26,689 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:37:26,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26 WrapperNode [2022-01-11 05:37:26,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:37:26,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:37:26,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:37:26,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:37:26,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,824 INFO L137 Inliner]: procedures = 133, calls = 224, calls flagged for inlining = 132, calls inlined = 362, statements flattened = 5239 [2022-01-11 05:37:26,824 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:37:26,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:37:26,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:37:26,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:37:26,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,843 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,843 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,916 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,944 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:37:26,945 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:37:26,945 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:37:26,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:37:26,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (1/1) ... [2022-01-11 05:37:26,951 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:37:26,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:37:26,970 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 05:37:26,987 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 05:37:27,012 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:37:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:37:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:37:27,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:37:27,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:37:27,244 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:37:27,245 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:37:29,450 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:37:29,464 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:37:29,464 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:37:29,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:37:29 BoogieIcfgContainer [2022-01-11 05:37:29,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:37:29,467 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:37:29,467 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:37:29,471 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:37:29,473 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:37:29" (1/1) ... [2022-01-11 05:37:29,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:37:29 BasicIcfg [2022-01-11 05:37:29,820 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:37:29,823 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:37:29,823 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:37:29,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:37:29,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:37:25" (1/4) ... [2022-01-11 05:37:29,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4ff593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:37:29, skipping insertion in model container [2022-01-11 05:37:29,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:37:26" (2/4) ... [2022-01-11 05:37:29,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4ff593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:37:29, skipping insertion in model container [2022-01-11 05:37:29,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:37:29" (3/4) ... [2022-01-11 05:37:29,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a4ff593 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:37:29, skipping insertion in model container [2022-01-11 05:37:29,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:37:29" (4/4) ... [2022-01-11 05:37:29,827 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product26.cil.cTransformedIcfg [2022-01-11 05:37:29,831 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:37:29,831 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:37:29,871 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:37:29,876 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 05:37:29,876 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:37:29,906 INFO L276 IsEmpty]: Start isEmpty. Operand has 1125 states, 1118 states have (on average 1.661896243291592) internal successors, (1858), 1124 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states 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 05:37:29,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-01-11 05:37:29,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:29,928 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] [2022-01-11 05:37:29,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:29,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:29,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1690366075, now seen corresponding path program 1 times [2022-01-11 05:37:29,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:29,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002210473] [2022-01-11 05:37:29,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:29,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:30,204 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 05:37:30,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:30,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002210473] [2022-01-11 05:37:30,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002210473] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:30,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:30,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:37:30,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128613387] [2022-01-11 05:37:30,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:30,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:37:30,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:30,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:37:30,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:37:30,235 INFO L87 Difference]: Start difference. First operand has 1125 states, 1118 states have (on average 1.661896243291592) internal successors, (1858), 1124 states have internal predecessors, (1858), 0 states have call successors, (0), 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 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 05:37:30,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:30,362 INFO L93 Difference]: Finished difference Result 1936 states and 3161 transitions. [2022-01-11 05:37:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:37:30,365 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2022-01-11 05:37:30,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:30,382 INFO L225 Difference]: With dead ends: 1936 [2022-01-11 05:37:30,382 INFO L226 Difference]: Without dead ends: 1050 [2022-01-11 05:37:30,389 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 05:37:30,392 INFO L933 BasicCegarLoop]: 1844 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, 1844 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 05:37:30,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1844 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:37:30,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-01-11 05:37:30,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2022-01-11 05:37:30,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1044 states have (on average 1.6704980842911878) internal successors, (1744), 1049 states have internal predecessors, (1744), 0 states have call successors, (0), 0 states 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 05:37:30,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1744 transitions. [2022-01-11 05:37:30,472 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1744 transitions. Word has length 69 [2022-01-11 05:37:30,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:30,472 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1744 transitions. [2022-01-11 05:37:30,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 34.5) internal successors, (69), 2 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 05:37:30,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1744 transitions. [2022-01-11 05:37:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-01-11 05:37:30,481 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:30,481 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:37:30,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:37:30,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:30,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:30,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2020732325, now seen corresponding path program 1 times [2022-01-11 05:37:30,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:30,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047160614] [2022-01-11 05:37:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:30,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:30,703 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 05:37:30,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:30,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047160614] [2022-01-11 05:37:30,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047160614] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:30,704 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:30,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:37:30,704 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [74272433] [2022-01-11 05:37:30,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:30,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:37:30,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:30,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:37:30,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:37:30,706 INFO L87 Difference]: Start difference. First operand 1050 states and 1744 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 05:37:30,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:30,814 INFO L93 Difference]: Finished difference Result 2081 states and 3460 transitions. [2022-01-11 05:37:30,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:37:30,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2022-01-11 05:37:30,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:30,826 INFO L225 Difference]: With dead ends: 2081 [2022-01-11 05:37:30,826 INFO L226 Difference]: Without dead ends: 1050 [2022-01-11 05:37:30,829 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 05:37:30,830 INFO L933 BasicCegarLoop]: 1722 mSDtfsCounter, 1719 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1719 SdHoareTripleChecker+Valid, 1735 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:30,830 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1719 Valid, 1735 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:37:30,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1050 states. [2022-01-11 05:37:30,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1050 to 1050. [2022-01-11 05:37:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1044 states have (on average 1.6685823754789273) internal successors, (1742), 1049 states have internal predecessors, (1742), 0 states have call successors, (0), 0 states 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 05:37:30,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1742 transitions. [2022-01-11 05:37:30,869 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1742 transitions. Word has length 70 [2022-01-11 05:37:30,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:30,870 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1742 transitions. [2022-01-11 05:37:30,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 05:37:30,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1742 transitions. [2022-01-11 05:37:30,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:37:30,877 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:30,877 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 05:37:30,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:37:30,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:30,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:30,878 INFO L85 PathProgramCache]: Analyzing trace with hash 1267163739, now seen corresponding path program 1 times [2022-01-11 05:37:30,878 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:30,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443189812] [2022-01-11 05:37:30,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:30,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:30,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:31,033 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 05:37:31,034 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:31,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443189812] [2022-01-11 05:37:31,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443189812] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:31,035 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:31,035 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:37:31,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855779175] [2022-01-11 05:37:31,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:31,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:37:31,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:37:31,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:37:31,037 INFO L87 Difference]: Start difference. First operand 1050 states and 1742 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 05:37:31,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:31,455 INFO L93 Difference]: Finished difference Result 5118 states and 8506 transitions. [2022-01-11 05:37:31,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:37:31,455 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 05:37:31,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:31,468 INFO L225 Difference]: With dead ends: 5118 [2022-01-11 05:37:31,468 INFO L226 Difference]: Without dead ends: 4092 [2022-01-11 05:37:31,473 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 05:37:31,475 INFO L933 BasicCegarLoop]: 3407 mSDtfsCounter, 8493 mSDsluCounter, 5098 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8493 SdHoareTripleChecker+Valid, 8505 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 05:37:31,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8493 Valid, 8505 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:37:31,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4092 states. [2022-01-11 05:37:31,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4092 to 1050. [2022-01-11 05:37:31,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1044 states have (on average 1.667624521072797) internal successors, (1741), 1049 states have internal predecessors, (1741), 0 states have call successors, (0), 0 states 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 05:37:31,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1741 transitions. [2022-01-11 05:37:31,528 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1741 transitions. Word has length 72 [2022-01-11 05:37:31,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:31,528 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1741 transitions. [2022-01-11 05:37:31,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 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 05:37:31,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1741 transitions. [2022-01-11 05:37:31,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:37:31,529 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:31,530 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 05:37:31,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:37:31,530 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:31,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:31,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1476945375, now seen corresponding path program 1 times [2022-01-11 05:37:31,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:31,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854200932] [2022-01-11 05:37:31,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:31,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:31,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:31,604 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 05:37:31,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:31,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854200932] [2022-01-11 05:37:31,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854200932] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:31,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:31,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:37:31,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528013594] [2022-01-11 05:37:31,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:31,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:37:31,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:31,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:37:31,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:37:31,606 INFO L87 Difference]: Start difference. First operand 1050 states and 1741 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 05:37:31,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:31,668 INFO L93 Difference]: Finished difference Result 2085 states and 3460 transitions. [2022-01-11 05:37:31,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:37:31,669 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 05:37:31,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:31,672 INFO L225 Difference]: With dead ends: 2085 [2022-01-11 05:37:31,672 INFO L226 Difference]: Without dead ends: 1064 [2022-01-11 05:37:31,674 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 05:37:31,675 INFO L933 BasicCegarLoop]: 1755 mSDtfsCounter, 1720 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1720 SdHoareTripleChecker+Valid, 1777 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 05:37:31,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1720 Valid, 1777 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:37:31,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2022-01-11 05:37:31,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1050. [2022-01-11 05:37:31,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1044 states have (on average 1.6666666666666667) internal successors, (1740), 1049 states have internal predecessors, (1740), 0 states have call successors, (0), 0 states 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 05:37:31,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1740 transitions. [2022-01-11 05:37:31,731 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1740 transitions. Word has length 73 [2022-01-11 05:37:31,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:31,731 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1740 transitions. [2022-01-11 05:37:31,731 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 05:37:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1740 transitions. [2022-01-11 05:37:31,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:37:31,732 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:31,732 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:37:31,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:37:31,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:31,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:31,733 INFO L85 PathProgramCache]: Analyzing trace with hash -897428262, now seen corresponding path program 1 times [2022-01-11 05:37:31,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:31,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963333304] [2022-01-11 05:37:31,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:31,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:31,849 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 05:37:31,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:31,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963333304] [2022-01-11 05:37:31,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963333304] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:31,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:31,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:37:31,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218931259] [2022-01-11 05:37:31,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:31,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:37:31,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:31,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:37:31,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:37:31,850 INFO L87 Difference]: Start difference. First operand 1050 states and 1740 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:32,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:32,030 INFO L93 Difference]: Finished difference Result 3084 states and 5120 transitions. [2022-01-11 05:37:32,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:37:32,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:37:32,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:32,037 INFO L225 Difference]: With dead ends: 3084 [2022-01-11 05:37:32,037 INFO L226 Difference]: Without dead ends: 2068 [2022-01-11 05:37:32,040 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 05:37:32,041 INFO L933 BasicCegarLoop]: 1749 mSDtfsCounter, 8416 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8416 SdHoareTripleChecker+Valid, 3512 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 05:37:32,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8416 Valid, 3512 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:37:32,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2022-01-11 05:37:32,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 1050. [2022-01-11 05:37:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1050 states, 1044 states have (on average 1.6647509578544062) internal successors, (1738), 1049 states have internal predecessors, (1738), 0 states have call successors, (0), 0 states 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 05:37:32,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1050 states to 1050 states and 1738 transitions. [2022-01-11 05:37:32,102 INFO L78 Accepts]: Start accepts. Automaton has 1050 states and 1738 transitions. Word has length 74 [2022-01-11 05:37:32,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:32,102 INFO L470 AbstractCegarLoop]: Abstraction has 1050 states and 1738 transitions. [2022-01-11 05:37:32,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:32,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1050 states and 1738 transitions. [2022-01-11 05:37:32,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:37:32,103 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:32,103 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 05:37:32,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:37:32,103 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:32,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:32,104 INFO L85 PathProgramCache]: Analyzing trace with hash -896415715, now seen corresponding path program 1 times [2022-01-11 05:37:32,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:32,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685346165] [2022-01-11 05:37:32,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:32,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:32,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:32,260 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 05:37:32,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:32,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685346165] [2022-01-11 05:37:32,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685346165] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:32,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:32,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 05:37:32,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319179571] [2022-01-11 05:37:32,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:32,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 05:37:32,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:32,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 05:37:32,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:37:32,262 INFO L87 Difference]: Start difference. First operand 1050 states and 1738 transitions. Second operand has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 05:37:33,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:33,708 INFO L93 Difference]: Finished difference Result 6499 states and 10389 transitions. [2022-01-11 05:37:33,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:37:33,709 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 05:37:33,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:33,726 INFO L225 Difference]: With dead ends: 6499 [2022-01-11 05:37:33,726 INFO L226 Difference]: Without dead ends: 5814 [2022-01-11 05:37:33,728 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 05:37:33,729 INFO L933 BasicCegarLoop]: 3247 mSDtfsCounter, 16058 mSDsluCounter, 15085 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16058 SdHoareTripleChecker+Valid, 18332 SdHoareTripleChecker+Invalid, 1001 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:33,729 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16058 Valid, 18332 Invalid, 1001 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [61 Valid, 940 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:37:33,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2022-01-11 05:37:33,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 1900. [2022-01-11 05:37:33,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1894 states have (on average 1.6721224920802535) internal successors, (3167), 1899 states have internal predecessors, (3167), 0 states have call successors, (0), 0 states 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 05:37:33,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 3167 transitions. [2022-01-11 05:37:33,848 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 3167 transitions. Word has length 76 [2022-01-11 05:37:33,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:33,848 INFO L470 AbstractCegarLoop]: Abstraction has 1900 states and 3167 transitions. [2022-01-11 05:37:33,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.444444444444445) internal successors, (76), 8 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 05:37:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 3167 transitions. [2022-01-11 05:37:33,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:37:33,850 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:33,850 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 05:37:33,850 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:37:33,850 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:33,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:33,850 INFO L85 PathProgramCache]: Analyzing trace with hash -2071856289, now seen corresponding path program 1 times [2022-01-11 05:37:33,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:33,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843077557] [2022-01-11 05:37:33,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:33,851 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:33,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:34,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:37:34,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:34,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843077557] [2022-01-11 05:37:34,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843077557] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:34,112 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:34,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:37:34,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504286443] [2022-01-11 05:37:34,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:34,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:37:34,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:34,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:37:34,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:37:34,113 INFO L87 Difference]: Start difference. First operand 1900 states and 3167 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 05:37:35,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:35,437 INFO L93 Difference]: Finished difference Result 6969 states and 11318 transitions. [2022-01-11 05:37:35,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-11 05:37:35,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 05:37:35,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:35,556 INFO L225 Difference]: With dead ends: 6969 [2022-01-11 05:37:35,557 INFO L226 Difference]: Without dead ends: 5767 [2022-01-11 05:37:35,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 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 05:37:35,561 INFO L933 BasicCegarLoop]: 2611 mSDtfsCounter, 5291 mSDsluCounter, 5235 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5291 SdHoareTripleChecker+Valid, 7846 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:35,561 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5291 Valid, 7846 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-11 05:37:35,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5767 states. [2022-01-11 05:37:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5767 to 3317. [2022-01-11 05:37:35,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3317 states, 3311 states have (on average 1.6647538508003625) internal successors, (5512), 3316 states have internal predecessors, (5512), 0 states have call successors, (0), 0 states 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 05:37:35,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3317 states to 3317 states and 5512 transitions. [2022-01-11 05:37:35,962 INFO L78 Accepts]: Start accepts. Automaton has 3317 states and 5512 transitions. Word has length 77 [2022-01-11 05:37:35,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:35,962 INFO L470 AbstractCegarLoop]: Abstraction has 3317 states and 5512 transitions. [2022-01-11 05:37:35,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 4 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 05:37:35,963 INFO L276 IsEmpty]: Start isEmpty. Operand 3317 states and 5512 transitions. [2022-01-11 05:37:35,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-01-11 05:37:35,965 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:35,965 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 05:37:35,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:37:35,966 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:35,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:35,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1721056352, now seen corresponding path program 1 times [2022-01-11 05:37:35,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:35,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635185109] [2022-01-11 05:37:35,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:35,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:36,082 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 05:37:36,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:36,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635185109] [2022-01-11 05:37:36,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635185109] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:36,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:36,083 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:37:36,083 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230750056] [2022-01-11 05:37:36,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:36,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:37:36,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:36,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:37:36,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:37:36,084 INFO L87 Difference]: Start difference. First operand 3317 states and 5512 transitions. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 05:37:37,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:37,805 INFO L93 Difference]: Finished difference Result 19040 states and 31244 transitions. [2022-01-11 05:37:37,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:37:37,806 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 05:37:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:37,844 INFO L225 Difference]: With dead ends: 19040 [2022-01-11 05:37:37,845 INFO L226 Difference]: Without dead ends: 17134 [2022-01-11 05:37:37,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:37:37,852 INFO L933 BasicCegarLoop]: 2922 mSDtfsCounter, 10678 mSDsluCounter, 10209 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10678 SdHoareTripleChecker+Valid, 13131 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:37,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10678 Valid, 13131 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:37:37,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17134 states. [2022-01-11 05:37:38,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17134 to 6538. [2022-01-11 05:37:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6538 states, 6532 states have (on average 1.6635027556644213) internal successors, (10866), 6537 states have internal predecessors, (10866), 0 states have call successors, (0), 0 states 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 05:37:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6538 states to 6538 states and 10866 transitions. [2022-01-11 05:37:38,588 INFO L78 Accepts]: Start accepts. Automaton has 6538 states and 10866 transitions. Word has length 77 [2022-01-11 05:37:38,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:38,589 INFO L470 AbstractCegarLoop]: Abstraction has 6538 states and 10866 transitions. [2022-01-11 05:37:38,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 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 05:37:38,589 INFO L276 IsEmpty]: Start isEmpty. Operand 6538 states and 10866 transitions. [2022-01-11 05:37:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:37:38,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:38,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:37:38,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:37:38,596 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:38,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:38,596 INFO L85 PathProgramCache]: Analyzing trace with hash -550416370, now seen corresponding path program 1 times [2022-01-11 05:37:38,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:38,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940749851] [2022-01-11 05:37:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:38,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:38,753 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 05:37:38,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:38,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940749851] [2022-01-11 05:37:38,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940749851] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:38,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:38,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:37:38,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392918247] [2022-01-11 05:37:38,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:38,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 05:37:38,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:38,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 05:37:38,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 05:37:38,758 INFO L87 Difference]: Start difference. First operand 6538 states and 10866 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:41,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:41,996 INFO L93 Difference]: Finished difference Result 37392 states and 61402 transitions. [2022-01-11 05:37:41,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:37:41,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:37:41,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:42,059 INFO L225 Difference]: With dead ends: 37392 [2022-01-11 05:37:42,059 INFO L226 Difference]: Without dead ends: 33678 [2022-01-11 05:37:42,071 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-11 05:37:42,074 INFO L933 BasicCegarLoop]: 2696 mSDtfsCounter, 10621 mSDsluCounter, 7762 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10621 SdHoareTripleChecker+Valid, 10458 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:42,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10621 Valid, 10458 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 05:37:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33678 states. [2022-01-11 05:37:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33678 to 12954. [2022-01-11 05:37:43,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12954 states, 12948 states have (on average 1.6637318504788385) internal successors, (21542), 12953 states have internal predecessors, (21542), 0 states have call successors, (0), 0 states 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 05:37:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12954 states to 12954 states and 21542 transitions. [2022-01-11 05:37:43,182 INFO L78 Accepts]: Start accepts. Automaton has 12954 states and 21542 transitions. Word has length 78 [2022-01-11 05:37:43,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:43,182 INFO L470 AbstractCegarLoop]: Abstraction has 12954 states and 21542 transitions. [2022-01-11 05:37:43,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 12954 states and 21542 transitions. [2022-01-11 05:37:43,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:37:43,211 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:43,211 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:37:43,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:37:43,211 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:43,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:43,212 INFO L85 PathProgramCache]: Analyzing trace with hash 250163672, now seen corresponding path program 1 times [2022-01-11 05:37:43,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:43,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126724166] [2022-01-11 05:37:43,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:43,212 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:43,295 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 05:37:43,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:43,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126724166] [2022-01-11 05:37:43,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126724166] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:43,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:43,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:37:43,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024960571] [2022-01-11 05:37:43,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:43,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:37:43,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:43,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:37:43,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:37:43,297 INFO L87 Difference]: Start difference. First operand 12954 states and 21542 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:45,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:45,493 INFO L93 Difference]: Finished difference Result 38570 states and 64190 transitions. [2022-01-11 05:37:45,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:37:45,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:37:45,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:45,543 INFO L225 Difference]: With dead ends: 38570 [2022-01-11 05:37:45,543 INFO L226 Difference]: Without dead ends: 25666 [2022-01-11 05:37:45,562 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 05:37:45,562 INFO L933 BasicCegarLoop]: 3379 mSDtfsCounter, 5151 mSDsluCounter, 1691 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5151 SdHoareTripleChecker+Valid, 5070 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:45,563 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5151 Valid, 5070 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:37:45,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25666 states. [2022-01-11 05:37:46,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25666 to 12954. [2022-01-11 05:37:46,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12954 states, 12948 states have (on average 1.6635773864689527) internal successors, (21540), 12953 states have internal predecessors, (21540), 0 states have call successors, (0), 0 states 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 05:37:46,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12954 states to 12954 states and 21540 transitions. [2022-01-11 05:37:46,612 INFO L78 Accepts]: Start accepts. Automaton has 12954 states and 21540 transitions. Word has length 78 [2022-01-11 05:37:46,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:46,612 INFO L470 AbstractCegarLoop]: Abstraction has 12954 states and 21540 transitions. [2022-01-11 05:37:46,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:46,612 INFO L276 IsEmpty]: Start isEmpty. Operand 12954 states and 21540 transitions. [2022-01-11 05:37:46,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:37:46,623 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:46,623 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 05:37:46,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:37:46,624 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:46,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:46,624 INFO L85 PathProgramCache]: Analyzing trace with hash -272924139, now seen corresponding path program 1 times [2022-01-11 05:37:46,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:46,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890804991] [2022-01-11 05:37:46,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:46,625 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:46,696 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 05:37:46,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:46,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890804991] [2022-01-11 05:37:46,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890804991] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:46,696 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:46,696 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:37:46,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929798712] [2022-01-11 05:37:46,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:46,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:37:46,697 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:46,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:37:46,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:37:46,698 INFO L87 Difference]: Start difference. First operand 12954 states and 21540 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:49,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:49,310 INFO L93 Difference]: Finished difference Result 38584 states and 64198 transitions. [2022-01-11 05:37:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:37:49,311 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 79 [2022-01-11 05:37:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:49,350 INFO L225 Difference]: With dead ends: 38584 [2022-01-11 05:37:49,350 INFO L226 Difference]: Without dead ends: 25690 [2022-01-11 05:37:49,367 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:37:49,368 INFO L933 BasicCegarLoop]: 3384 mSDtfsCounter, 5136 mSDsluCounter, 1718 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5136 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:49,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5136 Valid, 5102 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:37:49,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25690 states. [2022-01-11 05:37:50,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25690 to 12954. [2022-01-11 05:37:50,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12954 states, 12948 states have (on average 1.663422922459067) internal successors, (21538), 12953 states have internal predecessors, (21538), 0 states have call successors, (0), 0 states 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 05:37:50,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12954 states to 12954 states and 21538 transitions. [2022-01-11 05:37:50,579 INFO L78 Accepts]: Start accepts. Automaton has 12954 states and 21538 transitions. Word has length 79 [2022-01-11 05:37:50,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:50,580 INFO L470 AbstractCegarLoop]: Abstraction has 12954 states and 21538 transitions. [2022-01-11 05:37:50,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:37:50,580 INFO L276 IsEmpty]: Start isEmpty. Operand 12954 states and 21538 transitions. [2022-01-11 05:37:50,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:37:50,588 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:50,589 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 05:37:50,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:37:50,589 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:50,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:50,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1439620458, now seen corresponding path program 1 times [2022-01-11 05:37:50,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:50,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670869301] [2022-01-11 05:37:50,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:50,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:50,701 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 05:37:50,701 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:50,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670869301] [2022-01-11 05:37:50,701 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670869301] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:50,701 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:50,702 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:37:50,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054177649] [2022-01-11 05:37:50,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:50,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:37:50,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:50,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:37:50,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:37:50,703 INFO L87 Difference]: Start difference. First operand 12954 states and 21538 transitions. Second operand has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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 05:37:57,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:37:57,372 INFO L93 Difference]: Finished difference Result 56544 states and 91067 transitions. [2022-01-11 05:37:57,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-11 05:37:57,372 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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 05:37:57,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:37:57,458 INFO L225 Difference]: With dead ends: 56544 [2022-01-11 05:37:57,459 INFO L226 Difference]: Without dead ends: 49468 [2022-01-11 05:37:57,482 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 315 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=416, Invalid=1066, Unknown=0, NotChecked=0, Total=1482 [2022-01-11 05:37:57,482 INFO L933 BasicCegarLoop]: 3931 mSDtfsCounter, 14568 mSDsluCounter, 24131 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14568 SdHoareTripleChecker+Valid, 28062 SdHoareTripleChecker+Invalid, 1164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 05:37:57,483 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14568 Valid, 28062 Invalid, 1164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 05:37:57,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49468 states. [2022-01-11 05:37:59,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49468 to 16906. [2022-01-11 05:37:59,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16906 states, 16900 states have (on average 1.6502958579881657) internal successors, (27890), 16905 states have internal predecessors, (27890), 0 states have call successors, (0), 0 states 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 05:37:59,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16906 states to 16906 states and 27890 transitions. [2022-01-11 05:37:59,721 INFO L78 Accepts]: Start accepts. Automaton has 16906 states and 27890 transitions. Word has length 79 [2022-01-11 05:37:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:37:59,722 INFO L470 AbstractCegarLoop]: Abstraction has 16906 states and 27890 transitions. [2022-01-11 05:37:59,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.9) internal successors, (79), 10 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 05:37:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 16906 states and 27890 transitions. [2022-01-11 05:37:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:37:59,736 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:37:59,736 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 05:37:59,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:37:59,736 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:37:59,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:37:59,737 INFO L85 PathProgramCache]: Analyzing trace with hash 2065166772, now seen corresponding path program 1 times [2022-01-11 05:37:59,737 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:37:59,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001717217] [2022-01-11 05:37:59,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:37:59,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:37:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:37:59,820 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 05:37:59,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:37:59,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001717217] [2022-01-11 05:37:59,821 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001717217] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:37:59,821 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:37:59,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:37:59,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113000751] [2022-01-11 05:37:59,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:37:59,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:37:59,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:37:59,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:37:59,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:37:59,822 INFO L87 Difference]: Start difference. First operand 16906 states and 27890 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 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 05:38:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:02,178 INFO L93 Difference]: Finished difference Result 26478 states and 43262 transitions. [2022-01-11 05:38:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:38:02,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 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 05:38:02,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:02,210 INFO L225 Difference]: With dead ends: 26478 [2022-01-11 05:38:02,210 INFO L226 Difference]: Without dead ends: 21570 [2022-01-11 05:38:02,223 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 05:38:02,231 INFO L933 BasicCegarLoop]: 1729 mSDtfsCounter, 3278 mSDsluCounter, 2038 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3278 SdHoareTripleChecker+Valid, 3767 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:02,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3278 Valid, 3767 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:02,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21570 states. [2022-01-11 05:38:04,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21570 to 16906. [2022-01-11 05:38:04,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16906 states, 16900 states have (on average 1.6498224852071006) internal successors, (27882), 16905 states have internal predecessors, (27882), 0 states have call successors, (0), 0 states 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 05:38:04,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16906 states to 16906 states and 27882 transitions. [2022-01-11 05:38:04,191 INFO L78 Accepts]: Start accepts. Automaton has 16906 states and 27882 transitions. Word has length 79 [2022-01-11 05:38:04,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:04,191 INFO L470 AbstractCegarLoop]: Abstraction has 16906 states and 27882 transitions. [2022-01-11 05:38:04,191 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 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 05:38:04,191 INFO L276 IsEmpty]: Start isEmpty. Operand 16906 states and 27882 transitions. [2022-01-11 05:38:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:38:04,201 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:04,201 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 05:38:04,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:38:04,202 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:04,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 129506485, now seen corresponding path program 1 times [2022-01-11 05:38:04,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:04,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958503068] [2022-01-11 05:38:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:04,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:04,317 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 05:38:04,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:04,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958503068] [2022-01-11 05:38:04,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958503068] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:04,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:04,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:04,318 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130077842] [2022-01-11 05:38:04,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:04,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:04,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:04,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:04,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:04,319 INFO L87 Difference]: Start difference. First operand 16906 states and 27882 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 05:38:10,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:10,685 INFO L93 Difference]: Finished difference Result 60422 states and 97270 transitions. [2022-01-11 05:38:10,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:10,686 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 05:38:10,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:10,769 INFO L225 Difference]: With dead ends: 60422 [2022-01-11 05:38:10,769 INFO L226 Difference]: Without dead ends: 49554 [2022-01-11 05:38:10,791 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 05:38:10,792 INFO L933 BasicCegarLoop]: 4029 mSDtfsCounter, 6071 mSDsluCounter, 8944 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6071 SdHoareTripleChecker+Valid, 12973 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:10,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6071 Valid, 12973 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-11 05:38:10,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49554 states. [2022-01-11 05:38:13,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49554 to 21342. [2022-01-11 05:38:13,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21342 states, 21336 states have (on average 1.629265091863517) internal successors, (34762), 21341 states have internal predecessors, (34762), 0 states have call successors, (0), 0 states 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 05:38:13,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21342 states to 21342 states and 34762 transitions. [2022-01-11 05:38:13,951 INFO L78 Accepts]: Start accepts. Automaton has 21342 states and 34762 transitions. Word has length 79 [2022-01-11 05:38:13,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:13,951 INFO L470 AbstractCegarLoop]: Abstraction has 21342 states and 34762 transitions. [2022-01-11 05:38:13,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 4 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 05:38:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 21342 states and 34762 transitions. [2022-01-11 05:38:13,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2022-01-11 05:38:13,966 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:13,966 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 05:38:13,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:38:13,966 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:13,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:13,967 INFO L85 PathProgramCache]: Analyzing trace with hash -950883912, now seen corresponding path program 1 times [2022-01-11 05:38:13,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:13,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291605589] [2022-01-11 05:38:13,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:13,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:14,146 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 05:38:14,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:14,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291605589] [2022-01-11 05:38:14,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291605589] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:14,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:14,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 05:38:14,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335785306] [2022-01-11 05:38:14,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:14,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-11 05:38:14,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:14,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-11 05:38:14,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:38:14,147 INFO L87 Difference]: Start difference. First operand 21342 states and 34762 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) 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 05:38:21,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:21,462 INFO L93 Difference]: Finished difference Result 66880 states and 107040 transitions. [2022-01-11 05:38:21,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 05:38:21,462 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) 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 05:38:21,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:21,545 INFO L225 Difference]: With dead ends: 66880 [2022-01-11 05:38:21,545 INFO L226 Difference]: Without dead ends: 53320 [2022-01-11 05:38:21,566 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-11 05:38:21,567 INFO L933 BasicCegarLoop]: 5543 mSDtfsCounter, 7364 mSDsluCounter, 17778 mSDsCounter, 0 mSdLazyCounter, 868 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7364 SdHoareTripleChecker+Valid, 23321 SdHoareTripleChecker+Invalid, 947 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 868 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:21,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7364 Valid, 23321 Invalid, 947 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 868 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-11 05:38:21,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53320 states. [2022-01-11 05:38:24,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53320 to 23992. [2022-01-11 05:38:24,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23992 states, 23986 states have (on average 1.6171933627949637) internal successors, (38790), 23991 states have internal predecessors, (38790), 0 states have call successors, (0), 0 states 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 05:38:24,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23992 states to 23992 states and 38790 transitions. [2022-01-11 05:38:24,627 INFO L78 Accepts]: Start accepts. Automaton has 23992 states and 38790 transitions. Word has length 79 [2022-01-11 05:38:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:24,628 INFO L470 AbstractCegarLoop]: Abstraction has 23992 states and 38790 transitions. [2022-01-11 05:38:24,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) 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 05:38:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 23992 states and 38790 transitions. [2022-01-11 05:38:24,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-01-11 05:38:24,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:24,638 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 05:38:24,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:38:24,639 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:24,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:24,639 INFO L85 PathProgramCache]: Analyzing trace with hash 903260367, now seen corresponding path program 1 times [2022-01-11 05:38:24,639 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:24,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799714253] [2022-01-11 05:38:24,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:24,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:24,739 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 05:38:24,740 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:24,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799714253] [2022-01-11 05:38:24,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799714253] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:24,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:24,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 05:38:24,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782601242] [2022-01-11 05:38:24,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:24,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 05:38:24,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:24,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 05:38:24,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 05:38:24,741 INFO L87 Difference]: Start difference. First operand 23992 states and 38790 transitions. Second operand has 10 states, 10 states have (on average 8.0) internal successors, (80), 10 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)