/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 00:00:34,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 00:00:34,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 00:00:34,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 00:00:34,941 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 00:00:34,942 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 00:00:34,943 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 00:00:34,945 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 00:00:34,946 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 00:00:34,947 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 00:00:34,948 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 00:00:34,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 00:00:34,949 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 00:00:34,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 00:00:34,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 00:00:34,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 00:00:34,952 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 00:00:34,953 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 00:00:34,954 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 00:00:34,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 00:00:34,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 00:00:34,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 00:00:34,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 00:00:34,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 00:00:34,974 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 00:00:34,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 00:00:34,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 00:00:34,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 00:00:34,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 00:00:34,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 00:00:34,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 00:00:34,977 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 00:00:34,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 00:00:34,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 00:00:34,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 00:00:34,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 00:00:34,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 00:00:34,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 00:00:34,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 00:00:34,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 00:00:34,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 00:00:34,992 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-11 00:00:35,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 00:00:35,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 00:00:35,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 00:00:35,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 00:00:35,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 00:00:35,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 00:00:35,031 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 00:00:35,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 00:00:35,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 00:00:35,031 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 00:00:35,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 00:00:35,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 00:00:35,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 00:00:35,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 00:00:35,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 00:00:35,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:00:35,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 00:00:35,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 00:00:35,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 00:00:35,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 00:00:35,035 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 00:00:35,036 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 00:00:35,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 00:00:35,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 00:00:35,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 00:00:35,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 00:00:35,271 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 00:00:35,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2022-01-11 00:00:35,342 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518b5f563/344ef55ebee7471e8f83e92010c0b34c/FLAG8be108bec [2022-01-11 00:00:35,762 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 00:00:35,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product29.cil.c [2022-01-11 00:00:35,793 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518b5f563/344ef55ebee7471e8f83e92010c0b34c/FLAG8be108bec [2022-01-11 00:00:36,090 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/518b5f563/344ef55ebee7471e8f83e92010c0b34c [2022-01-11 00:00:36,092 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 00:00:36,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 00:00:36,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 00:00:36,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 00:00:36,102 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 00:00:36,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:00:36" (1/1) ... [2022-01-11 00:00:36,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19439163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:36, skipping insertion in model container [2022-01-11 00:00:36,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 12:00:36" (1/1) ... [2022-01-11 00:00:36,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 00:00:36,156 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:00:36,650 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_spec8_product29.cil.c[29472,29485] [2022-01-11 00:00:36,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:00:36,804 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 00:00:36,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 00:00:36,890 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_spec8_product29.cil.c[29472,29485] [2022-01-11 00:00:36,944 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:00:36,953 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 00:00:37,010 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_spec8_product29.cil.c[29472,29485] [2022-01-11 00:00:37,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 00:00:37,088 INFO L208 MainTranslator]: Completed translation [2022-01-11 00:00:37,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37 WrapperNode [2022-01-11 00:00:37,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 00:00:37,090 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 00:00:37,090 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 00:00:37,090 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 00:00:37,097 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,145 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,268 INFO L137 Inliner]: procedures = 134, calls = 232, calls flagged for inlining = 137, calls inlined = 308, statements flattened = 4843 [2022-01-11 00:00:37,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 00:00:37,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 00:00:37,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 00:00:37,270 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 00:00:37,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,368 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,435 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 00:00:37,436 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 00:00:37,436 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 00:00:37,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 00:00:37,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (1/1) ... [2022-01-11 00:00:37,449 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 00:00:37,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 00:00:37,470 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 00:00:37,472 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 00:00:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 00:00:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 00:00:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 00:00:37,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 00:00:37,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 00:00:37,702 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 00:00:37,704 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 00:00:39,849 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 00:00:39,866 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 00:00:39,867 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 00:00:39,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:00:39 BoogieIcfgContainer [2022-01-11 00:00:39,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 00:00:39,871 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 00:00:39,871 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 00:00:39,872 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 00:00:39,874 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:00:39" (1/1) ... [2022-01-11 00:00:40,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:00:40 BasicIcfg [2022-01-11 00:00:40,386 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 00:00:40,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 00:00:40,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 00:00:40,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 00:00:40,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 12:00:36" (1/4) ... [2022-01-11 00:00:40,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9677ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:00:40, skipping insertion in model container [2022-01-11 00:00:40,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 12:00:37" (2/4) ... [2022-01-11 00:00:40,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9677ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 12:00:40, skipping insertion in model container [2022-01-11 00:00:40,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 12:00:39" (3/4) ... [2022-01-11 00:00:40,392 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9677ed7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 12:00:40, skipping insertion in model container [2022-01-11 00:00:40,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 12:00:40" (4/4) ... [2022-01-11 00:00:40,393 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product29.cil.cTransformedIcfg [2022-01-11 00:00:40,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 00:00:40,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 00:00:40,454 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 00:00:40,461 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 00:00:40,461 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 00:00:40,495 INFO L276 IsEmpty]: Start isEmpty. Operand has 1093 states, 1086 states have (on average 1.6961325966850829) internal successors, (1842), 1092 states have internal predecessors, (1842), 0 states have call successors, (0), 0 states 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 00:00:40,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 00:00:40,519 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:40,520 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] [2022-01-11 00:00:40,520 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:40,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:40,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1193384065, now seen corresponding path program 1 times [2022-01-11 00:00:40,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:40,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313420781] [2022-01-11 00:00:40,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:40,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:40,909 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 00:00:40,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:40,910 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313420781] [2022-01-11 00:00:40,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313420781] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:40,911 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:40,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:00:40,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310654285] [2022-01-11 00:00:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:40,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 00:00:40,921 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:40,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 00:00:40,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 00:00:40,962 INFO L87 Difference]: Start difference. First operand has 1093 states, 1086 states have (on average 1.6961325966850829) internal successors, (1842), 1092 states have internal predecessors, (1842), 0 states have call successors, (0), 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 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 00:00:41,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:41,058 INFO L93 Difference]: Finished difference Result 1882 states and 3145 transitions. [2022-01-11 00:00:41,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 00:00:41,060 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2022-01-11 00:00:41,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:41,082 INFO L225 Difference]: With dead ends: 1882 [2022-01-11 00:00:41,082 INFO L226 Difference]: Without dead ends: 929 [2022-01-11 00:00:41,089 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 00:00:41,092 INFO L933 BasicCegarLoop]: 1828 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, 1828 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 00:00:41,093 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1828 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:41,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 929 states. [2022-01-11 00:00:41,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 929 to 929. [2022-01-11 00:00:41,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 929 states, 923 states have (on average 1.704225352112676) internal successors, (1573), 928 states have internal predecessors, (1573), 0 states have call successors, (0), 0 states 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 00:00:41,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 929 states to 929 states and 1573 transitions. [2022-01-11 00:00:41,242 INFO L78 Accepts]: Start accepts. Automaton has 929 states and 1573 transitions. Word has length 55 [2022-01-11 00:00:41,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:41,243 INFO L470 AbstractCegarLoop]: Abstraction has 929 states and 1573 transitions. [2022-01-11 00:00:41,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states 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 00:00:41,244 INFO L276 IsEmpty]: Start isEmpty. Operand 929 states and 1573 transitions. [2022-01-11 00:00:41,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 00:00:41,247 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:41,247 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] [2022-01-11 00:00:41,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 00:00:41,248 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:41,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:41,250 INFO L85 PathProgramCache]: Analyzing trace with hash -415624481, now seen corresponding path program 1 times [2022-01-11 00:00:41,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:41,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487352271] [2022-01-11 00:00:41,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:41,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:41,470 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 00:00:41,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:41,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487352271] [2022-01-11 00:00:41,471 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487352271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:41,471 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:41,471 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 00:00:41,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427686498] [2022-01-11 00:00:41,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:41,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:00:41,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:41,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:00:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:00:41,474 INFO L87 Difference]: Start difference. First operand 929 states and 1573 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 00:00:41,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:41,571 INFO L93 Difference]: Finished difference Result 1459 states and 2443 transitions. [2022-01-11 00:00:41,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:00:41,572 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2022-01-11 00:00:41,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:41,576 INFO L225 Difference]: With dead ends: 1459 [2022-01-11 00:00:41,576 INFO L226 Difference]: Without dead ends: 931 [2022-01-11 00:00:41,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:00:41,578 INFO L933 BasicCegarLoop]: 1553 mSDtfsCounter, 696 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 2371 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:41,579 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 2371 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:41,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-01-11 00:00:41,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 917. [2022-01-11 00:00:41,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.7031763417305585) internal successors, (1555), 916 states have internal predecessors, (1555), 0 states have call successors, (0), 0 states 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 00:00:41,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1555 transitions. [2022-01-11 00:00:41,600 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1555 transitions. Word has length 56 [2022-01-11 00:00:41,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:41,601 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1555 transitions. [2022-01-11 00:00:41,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states 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 00:00:41,601 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1555 transitions. [2022-01-11 00:00:41,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-11 00:00:41,604 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:41,604 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:41,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 00:00:41,604 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:41,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:41,605 INFO L85 PathProgramCache]: Analyzing trace with hash 815803081, now seen corresponding path program 1 times [2022-01-11 00:00:41,605 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:41,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134556195] [2022-01-11 00:00:41,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:41,606 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:41,805 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 00:00:41,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:41,806 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134556195] [2022-01-11 00:00:41,807 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134556195] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:41,807 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:41,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:00:41,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289492938] [2022-01-11 00:00:41,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:41,808 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:00:41,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:41,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:00:41,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:00:41,810 INFO L87 Difference]: Start difference. First operand 917 states and 1555 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:41,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:41,929 INFO L93 Difference]: Finished difference Result 1607 states and 2686 transitions. [2022-01-11 00:00:41,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:00:41,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-11 00:00:41,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:41,936 INFO L225 Difference]: With dead ends: 1607 [2022-01-11 00:00:41,936 INFO L226 Difference]: Without dead ends: 1133 [2022-01-11 00:00:41,940 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 00:00:41,943 INFO L933 BasicCegarLoop]: 1843 mSDtfsCounter, 773 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 773 SdHoareTripleChecker+Valid, 2949 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:41,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [773 Valid, 2949 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:00:41,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1133 states. [2022-01-11 00:00:42,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1133 to 917. [2022-01-11 00:00:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.696604600219058) internal successors, (1549), 916 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states 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 00:00:42,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1549 transitions. [2022-01-11 00:00:42,019 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1549 transitions. Word has length 104 [2022-01-11 00:00:42,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:42,020 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1549 transitions. [2022-01-11 00:00:42,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:42,020 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1549 transitions. [2022-01-11 00:00:42,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-11 00:00:42,022 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:42,022 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 00:00:42,023 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash -410281853, now seen corresponding path program 1 times [2022-01-11 00:00:42,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:42,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636952709] [2022-01-11 00:00:42,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:42,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:42,248 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 00:00:42,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:42,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636952709] [2022-01-11 00:00:42,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636952709] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:42,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:42,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:00:42,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060399468] [2022-01-11 00:00:42,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:42,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:00:42,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:42,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:00:42,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:00:42,253 INFO L87 Difference]: Start difference. First operand 917 states and 1549 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:42,345 INFO L93 Difference]: Finished difference Result 1815 states and 3070 transitions. [2022-01-11 00:00:42,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:00:42,346 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-11 00:00:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:42,351 INFO L225 Difference]: With dead ends: 1815 [2022-01-11 00:00:42,351 INFO L226 Difference]: Without dead ends: 917 [2022-01-11 00:00:42,353 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 00:00:42,354 INFO L933 BasicCegarLoop]: 1529 mSDtfsCounter, 1524 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1524 SdHoareTripleChecker+Valid, 1542 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:42,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1524 Valid, 1542 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:42,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 917 states. [2022-01-11 00:00:42,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 917 to 917. [2022-01-11 00:00:42,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6944140197152244) internal successors, (1547), 916 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states 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 00:00:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1547 transitions. [2022-01-11 00:00:42,388 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1547 transitions. Word has length 105 [2022-01-11 00:00:42,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:42,389 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1547 transitions. [2022-01-11 00:00:42,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:42,389 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1547 transitions. [2022-01-11 00:00:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-01-11 00:00:42,391 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:42,391 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:42,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 00:00:42,392 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:42,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:42,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1842555267, now seen corresponding path program 1 times [2022-01-11 00:00:42,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:42,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584055339] [2022-01-11 00:00:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:42,393 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:42,546 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 00:00:42,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:42,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584055339] [2022-01-11 00:00:42,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584055339] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:42,548 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:42,548 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:00:42,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98661767] [2022-01-11 00:00:42,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:42,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:42,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:42,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:42,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:42,551 INFO L87 Difference]: Start difference. First operand 917 states and 1547 transitions. Second operand has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 00:00:42,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:42,888 INFO L93 Difference]: Finished difference Result 4453 states and 7531 transitions. [2022-01-11 00:00:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 00:00:42,889 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2022-01-11 00:00:42,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:42,904 INFO L225 Difference]: With dead ends: 4453 [2022-01-11 00:00:42,904 INFO L226 Difference]: Without dead ends: 3560 [2022-01-11 00:00:42,907 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 00:00:42,908 INFO L933 BasicCegarLoop]: 3017 mSDtfsCounter, 7518 mSDsluCounter, 4513 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7518 SdHoareTripleChecker+Valid, 7530 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 00:00:42,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7518 Valid, 7530 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:00:42,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3560 states. [2022-01-11 00:00:42,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3560 to 917. [2022-01-11 00:00:42,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6933187294633079) internal successors, (1546), 916 states have internal predecessors, (1546), 0 states have call successors, (0), 0 states 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 00:00:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1546 transitions. [2022-01-11 00:00:42,977 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1546 transitions. Word has length 107 [2022-01-11 00:00:42,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:42,982 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1546 transitions. [2022-01-11 00:00:42,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.4) internal successors, (107), 5 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 00:00:42,983 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1546 transitions. [2022-01-11 00:00:42,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-11 00:00:42,985 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:42,985 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:42,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 00:00:42,985 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:42,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash -832254841, now seen corresponding path program 1 times [2022-01-11 00:00:42,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:42,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645950694] [2022-01-11 00:00:42,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:42,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:43,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:43,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:00:43,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:43,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645950694] [2022-01-11 00:00:43,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645950694] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:43,142 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:43,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 00:00:43,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204903975] [2022-01-11 00:00:43,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:43,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 00:00:43,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:43,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 00:00:43,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 00:00:43,144 INFO L87 Difference]: Start difference. First operand 917 states and 1546 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 00:00:43,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:43,229 INFO L93 Difference]: Finished difference Result 1819 states and 3070 transitions. [2022-01-11 00:00:43,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 00:00:43,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 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 108 [2022-01-11 00:00:43,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:43,235 INFO L225 Difference]: With dead ends: 1819 [2022-01-11 00:00:43,235 INFO L226 Difference]: Without dead ends: 931 [2022-01-11 00:00:43,239 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 00:00:43,241 INFO L933 BasicCegarLoop]: 1560 mSDtfsCounter, 1525 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1525 SdHoareTripleChecker+Valid, 1582 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 00:00:43,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1525 Valid, 1582 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:43,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2022-01-11 00:00:43,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 917. [2022-01-11 00:00:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.692223439211391) internal successors, (1545), 916 states have internal predecessors, (1545), 0 states have call successors, (0), 0 states 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 00:00:43,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1545 transitions. [2022-01-11 00:00:43,297 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1545 transitions. Word has length 108 [2022-01-11 00:00:43,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:43,297 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1545 transitions. [2022-01-11 00:00:43,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states 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 00:00:43,298 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1545 transitions. [2022-01-11 00:00:43,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-11 00:00:43,299 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:43,300 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:43,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 00:00:43,300 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:43,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:43,301 INFO L85 PathProgramCache]: Analyzing trace with hash 2035191716, now seen corresponding path program 1 times [2022-01-11 00:00:43,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:43,301 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565244760] [2022-01-11 00:00:43,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:43,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:43,450 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 00:00:43,450 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:43,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565244760] [2022-01-11 00:00:43,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565244760] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:43,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:43,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:00:43,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626218008] [2022-01-11 00:00:43,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:43,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:43,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:43,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:43,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:43,453 INFO L87 Difference]: Start difference. First operand 917 states and 1545 transitions. Second operand has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 00:00:43,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:43,693 INFO L93 Difference]: Finished difference Result 2685 states and 4535 transitions. [2022-01-11 00:00:43,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:00:43,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 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 109 [2022-01-11 00:00:43,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:43,701 INFO L225 Difference]: With dead ends: 2685 [2022-01-11 00:00:43,701 INFO L226 Difference]: Without dead ends: 1802 [2022-01-11 00:00:43,703 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 00:00:43,706 INFO L933 BasicCegarLoop]: 1554 mSDtfsCounter, 7441 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7441 SdHoareTripleChecker+Valid, 3122 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 00:00:43,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7441 Valid, 3122 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:00:43,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1802 states. [2022-01-11 00:00:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1802 to 917. [2022-01-11 00:00:43,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 917 states, 913 states have (on average 1.6900328587075575) internal successors, (1543), 916 states have internal predecessors, (1543), 0 states have call successors, (0), 0 states 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 00:00:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1543 transitions. [2022-01-11 00:00:43,773 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1543 transitions. Word has length 109 [2022-01-11 00:00:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:43,774 INFO L470 AbstractCegarLoop]: Abstraction has 917 states and 1543 transitions. [2022-01-11 00:00:43,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.8) internal successors, (109), 5 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 00:00:43,775 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1543 transitions. [2022-01-11 00:00:43,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-11 00:00:43,778 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:43,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:43,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 00:00:43,778 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:43,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:43,779 INFO L85 PathProgramCache]: Analyzing trace with hash 514350721, now seen corresponding path program 1 times [2022-01-11 00:00:43,779 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:43,779 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382273854] [2022-01-11 00:00:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:43,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:43,947 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 00:00:43,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:43,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382273854] [2022-01-11 00:00:43,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382273854] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:43,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:43,948 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-11 00:00:43,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270958377] [2022-01-11 00:00:43,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:43,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-11 00:00:43,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:43,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-11 00:00:43,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-11 00:00:43,950 INFO L87 Difference]: Start difference. First operand 917 states and 1543 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 00:00:44,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:44,710 INFO L93 Difference]: Finished difference Result 6848 states and 11408 transitions. [2022-01-11 00:00:44,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-11 00:00:44,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 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 111 [2022-01-11 00:00:44,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:44,737 INFO L225 Difference]: With dead ends: 6848 [2022-01-11 00:00:44,738 INFO L226 Difference]: Without dead ends: 6248 [2022-01-11 00:00:44,742 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-11 00:00:44,744 INFO L933 BasicCegarLoop]: 2846 mSDtfsCounter, 12001 mSDsluCounter, 10198 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12001 SdHoareTripleChecker+Valid, 13044 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:44,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12001 Valid, 13044 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:00:44,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6248 states. [2022-01-11 00:00:44,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6248 to 1590. [2022-01-11 00:00:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.6929382093316518) internal successors, (2685), 1589 states have internal predecessors, (2685), 0 states have call successors, (0), 0 states 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 00:00:44,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2685 transitions. [2022-01-11 00:00:44,941 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2685 transitions. Word has length 111 [2022-01-11 00:00:44,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:44,942 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2685 transitions. [2022-01-11 00:00:44,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 6 states have internal predecessors, (111), 0 states have call successors, (0), 0 states 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 00:00:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2685 transitions. [2022-01-11 00:00:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-11 00:00:44,945 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:44,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:44,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 00:00:44,946 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:44,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:44,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1504621289, now seen corresponding path program 1 times [2022-01-11 00:00:44,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:44,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421545056] [2022-01-11 00:00:44,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:44,947 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:45,116 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 00:00:45,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:45,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421545056] [2022-01-11 00:00:45,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421545056] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:45,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:45,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:00:45,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404115738] [2022-01-11 00:00:45,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:45,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:45,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:45,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:45,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:45,119 INFO L87 Difference]: Start difference. First operand 1590 states and 2685 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 00:00:45,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:45,389 INFO L93 Difference]: Finished difference Result 3315 states and 5511 transitions. [2022-01-11 00:00:45,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 00:00:45,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-01-11 00:00:45,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:45,399 INFO L225 Difference]: With dead ends: 3315 [2022-01-11 00:00:45,399 INFO L226 Difference]: Without dead ends: 2331 [2022-01-11 00:00:45,401 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 00:00:45,404 INFO L933 BasicCegarLoop]: 1525 mSDtfsCounter, 5075 mSDsluCounter, 1826 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5075 SdHoareTripleChecker+Valid, 3351 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 00:00:45,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5075 Valid, 3351 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:00:45,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2331 states. [2022-01-11 00:00:45,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2331 to 1590. [2022-01-11 00:00:45,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.6904161412358134) internal successors, (2681), 1589 states have internal predecessors, (2681), 0 states have call successors, (0), 0 states 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 00:00:45,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2681 transitions. [2022-01-11 00:00:45,566 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2681 transitions. Word has length 112 [2022-01-11 00:00:45,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:45,568 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2681 transitions. [2022-01-11 00:00:45,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 00:00:45,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2681 transitions. [2022-01-11 00:00:45,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-11 00:00:45,571 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:45,571 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:45,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 00:00:45,572 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:45,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:45,572 INFO L85 PathProgramCache]: Analyzing trace with hash -434901055, now seen corresponding path program 1 times [2022-01-11 00:00:45,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:45,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591004004] [2022-01-11 00:00:45,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:45,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:45,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:00:45,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:45,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591004004] [2022-01-11 00:00:45,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591004004] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:45,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:45,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 00:00:45,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [682650778] [2022-01-11 00:00:45,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:45,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:45,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:45,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:45,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:45,696 INFO L87 Difference]: Start difference. First operand 1590 states and 2681 transitions. Second operand has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 00:00:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:45,998 INFO L93 Difference]: Finished difference Result 4647 states and 7872 transitions. [2022-01-11 00:00:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 00:00:45,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2022-01-11 00:00:45,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:46,011 INFO L225 Difference]: With dead ends: 4647 [2022-01-11 00:00:46,011 INFO L226 Difference]: Without dead ends: 3094 [2022-01-11 00:00:46,013 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 00:00:46,014 INFO L933 BasicCegarLoop]: 2985 mSDtfsCounter, 4560 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4560 SdHoareTripleChecker+Valid, 4479 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 00:00:46,015 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4560 Valid, 4479 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 00:00:46,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-01-11 00:00:46,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 1590. [2022-01-11 00:00:46,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1586 states have (on average 1.689155107187894) internal successors, (2679), 1589 states have internal predecessors, (2679), 0 states have call successors, (0), 0 states 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 00:00:46,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2679 transitions. [2022-01-11 00:00:46,186 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2679 transitions. Word has length 112 [2022-01-11 00:00:46,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:46,186 INFO L470 AbstractCegarLoop]: Abstraction has 1590 states and 2679 transitions. [2022-01-11 00:00:46,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.4) internal successors, (112), 5 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 00:00:46,186 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2679 transitions. [2022-01-11 00:00:46,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 00:00:46,189 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:46,189 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:46,189 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 00:00:46,189 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:46,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:46,190 INFO L85 PathProgramCache]: Analyzing trace with hash -1162071024, now seen corresponding path program 1 times [2022-01-11 00:00:46,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:46,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872511702] [2022-01-11 00:00:46,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:46,191 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:46,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:46,344 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 00:00:46,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:46,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872511702] [2022-01-11 00:00:46,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872511702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:46,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:46,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:00:46,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508326083] [2022-01-11 00:00:46,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:46,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:46,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:46,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:46,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:46,347 INFO L87 Difference]: Start difference. First operand 1590 states and 2679 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 00:00:46,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:46,770 INFO L93 Difference]: Finished difference Result 4482 states and 7481 transitions. [2022-01-11 00:00:46,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:00:46,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-11 00:00:46,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:46,796 INFO L225 Difference]: With dead ends: 4482 [2022-01-11 00:00:46,797 INFO L226 Difference]: Without dead ends: 3734 [2022-01-11 00:00:46,799 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 00:00:46,799 INFO L933 BasicCegarLoop]: 1610 mSDtfsCounter, 3059 mSDsluCounter, 4726 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3059 SdHoareTripleChecker+Valid, 6336 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:46,799 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3059 Valid, 6336 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:46,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3734 states. [2022-01-11 00:00:47,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3734 to 2908. [2022-01-11 00:00:47,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2904 states have (on average 1.6966253443526171) internal successors, (4927), 2907 states have internal predecessors, (4927), 0 states have call successors, (0), 0 states 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 00:00:47,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 4927 transitions. [2022-01-11 00:00:47,080 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 4927 transitions. Word has length 113 [2022-01-11 00:00:47,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:47,080 INFO L470 AbstractCegarLoop]: Abstraction has 2908 states and 4927 transitions. [2022-01-11 00:00:47,080 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 00:00:47,080 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 4927 transitions. [2022-01-11 00:00:47,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-11 00:00:47,088 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:47,088 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:47,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 00:00:47,089 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:47,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:47,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1763525779, now seen corresponding path program 1 times [2022-01-11 00:00:47,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:47,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749350999] [2022-01-11 00:00:47,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:47,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:47,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:47,263 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 00:00:47,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:47,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749350999] [2022-01-11 00:00:47,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749350999] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:47,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:47,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 00:00:47,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640180274] [2022-01-11 00:00:47,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:47,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 00:00:47,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:47,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 00:00:47,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:00:47,266 INFO L87 Difference]: Start difference. First operand 2908 states and 4927 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 00:00:49,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:49,433 INFO L93 Difference]: Finished difference Result 12942 states and 21267 transitions. [2022-01-11 00:00:49,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-11 00:00:49,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 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 113 [2022-01-11 00:00:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:49,463 INFO L225 Difference]: With dead ends: 12942 [2022-01-11 00:00:49,463 INFO L226 Difference]: Without dead ends: 11426 [2022-01-11 00:00:49,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-11 00:00:49,470 INFO L933 BasicCegarLoop]: 2248 mSDtfsCounter, 13019 mSDsluCounter, 11733 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13019 SdHoareTripleChecker+Valid, 13981 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:49,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13019 Valid, 13981 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-01-11 00:00:49,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11426 states. [2022-01-11 00:00:50,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11426 to 5725. [2022-01-11 00:00:50,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5725 states, 5721 states have (on average 1.6986540814542912) internal successors, (9718), 5724 states have internal predecessors, (9718), 0 states have call successors, (0), 0 states 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 00:00:50,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5725 states to 5725 states and 9718 transitions. [2022-01-11 00:00:50,054 INFO L78 Accepts]: Start accepts. Automaton has 5725 states and 9718 transitions. Word has length 113 [2022-01-11 00:00:50,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:50,054 INFO L470 AbstractCegarLoop]: Abstraction has 5725 states and 9718 transitions. [2022-01-11 00:00:50,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 8 states have internal predecessors, (113), 0 states have call successors, (0), 0 states 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 00:00:50,055 INFO L276 IsEmpty]: Start isEmpty. Operand 5725 states and 9718 transitions. [2022-01-11 00:00:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 00:00:50,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:50,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:50,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 00:00:50,065 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:50,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:50,066 INFO L85 PathProgramCache]: Analyzing trace with hash -332045667, now seen corresponding path program 1 times [2022-01-11 00:00:50,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:50,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070612920] [2022-01-11 00:00:50,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:50,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:50,219 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 00:00:50,219 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:50,220 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070612920] [2022-01-11 00:00:50,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070612920] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:50,220 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:50,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:00:50,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939356308] [2022-01-11 00:00:50,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:50,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:50,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:50,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:50,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:50,222 INFO L87 Difference]: Start difference. First operand 5725 states and 9718 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:51,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:51,602 INFO L93 Difference]: Finished difference Result 16177 states and 27046 transitions. [2022-01-11 00:00:51,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:00:51,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-11 00:00:51,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:51,637 INFO L225 Difference]: With dead ends: 16177 [2022-01-11 00:00:51,637 INFO L226 Difference]: Without dead ends: 13664 [2022-01-11 00:00:51,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:00:51,645 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 2543 mSDsluCounter, 4572 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2543 SdHoareTripleChecker+Valid, 6364 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:51,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2543 Valid, 6364 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:51,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13664 states. [2022-01-11 00:00:52,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13664 to 11007. [2022-01-11 00:00:52,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 11003 states have (on average 1.7022630191765882) internal successors, (18730), 11006 states have internal predecessors, (18730), 0 states have call successors, (0), 0 states 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 00:00:52,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 18730 transitions. [2022-01-11 00:00:52,722 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 18730 transitions. Word has length 114 [2022-01-11 00:00:52,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:52,722 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 18730 transitions. [2022-01-11 00:00:52,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:52,722 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 18730 transitions. [2022-01-11 00:00:52,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 00:00:52,740 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:52,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:52,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 00:00:52,740 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:52,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:52,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1696705186, now seen corresponding path program 1 times [2022-01-11 00:00:52,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:52,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751546928] [2022-01-11 00:00:52,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:52,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:52,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:52,862 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 00:00:52,862 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:52,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751546928] [2022-01-11 00:00:52,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751546928] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:52,862 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:52,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:00:52,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406934209] [2022-01-11 00:00:52,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:52,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 00:00:52,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 00:00:52,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 00:00:52,864 INFO L87 Difference]: Start difference. First operand 11007 states and 18730 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:53,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:53,885 INFO L93 Difference]: Finished difference Result 16649 states and 27929 transitions. [2022-01-11 00:00:53,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 00:00:53,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-11 00:00:53,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:53,920 INFO L225 Difference]: With dead ends: 16649 [2022-01-11 00:00:53,921 INFO L226 Difference]: Without dead ends: 13312 [2022-01-11 00:00:53,931 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 00:00:53,932 INFO L933 BasicCegarLoop]: 1533 mSDtfsCounter, 2766 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:53,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2766 Valid, 3342 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 00:00:53,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13312 states. [2022-01-11 00:00:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13312 to 11007. [2022-01-11 00:00:54,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11007 states, 11003 states have (on average 1.701535944742343) internal successors, (18722), 11006 states have internal predecessors, (18722), 0 states have call successors, (0), 0 states 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 00:00:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11007 states to 11007 states and 18722 transitions. [2022-01-11 00:00:54,711 INFO L78 Accepts]: Start accepts. Automaton has 11007 states and 18722 transitions. Word has length 114 [2022-01-11 00:00:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:00:54,712 INFO L470 AbstractCegarLoop]: Abstraction has 11007 states and 18722 transitions. [2022-01-11 00:00:54,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 11007 states and 18722 transitions. [2022-01-11 00:00:54,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-01-11 00:00:54,731 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:00:54,731 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:00:54,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 00:00:54,731 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:00:54,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:00:54,732 INFO L85 PathProgramCache]: Analyzing trace with hash -829652961, now seen corresponding path program 1 times [2022-01-11 00:00:54,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:00:54,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048067033] [2022-01-11 00:00:54,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:00:54,732 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:00:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:00:54,904 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 00:00:54,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:00:54,905 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048067033] [2022-01-11 00:00:54,905 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048067033] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:00:54,905 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:00:54,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:00:54,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374835455] [2022-01-11 00:00:54,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:00:54,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:00:54,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:00:54,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:00:54,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:00:54,906 INFO L87 Difference]: Start difference. First operand 11007 states and 18722 transitions. Second operand has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:00:58,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:00:58,994 INFO L93 Difference]: Finished difference Result 44607 states and 72986 transitions. [2022-01-11 00:00:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:00:58,995 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 114 [2022-01-11 00:00:58,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:00:59,104 INFO L225 Difference]: With dead ends: 44607 [2022-01-11 00:00:59,104 INFO L226 Difference]: Without dead ends: 41796 [2022-01-11 00:00:59,129 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 00:00:59,131 INFO L933 BasicCegarLoop]: 1532 mSDtfsCounter, 8849 mSDsluCounter, 5034 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8849 SdHoareTripleChecker+Valid, 6566 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 00:00:59,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8849 Valid, 6566 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 00:00:59,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41796 states. [2022-01-11 00:01:01,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41796 to 24918. [2022-01-11 00:01:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24918 states, 24914 states have (on average 1.6561772497391025) internal successors, (41262), 24917 states have internal predecessors, (41262), 0 states have call successors, (0), 0 states 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 00:01:01,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24918 states to 24918 states and 41262 transitions. [2022-01-11 00:01:01,787 INFO L78 Accepts]: Start accepts. Automaton has 24918 states and 41262 transitions. Word has length 114 [2022-01-11 00:01:01,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:01:01,788 INFO L470 AbstractCegarLoop]: Abstraction has 24918 states and 41262 transitions. [2022-01-11 00:01:01,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.8) internal successors, (114), 4 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:01:01,788 INFO L276 IsEmpty]: Start isEmpty. Operand 24918 states and 41262 transitions. [2022-01-11 00:01:01,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-11 00:01:01,819 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:01:01,819 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:01:01,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 00:01:01,820 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:01:01,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:01:01,820 INFO L85 PathProgramCache]: Analyzing trace with hash -684760956, now seen corresponding path program 1 times [2022-01-11 00:01:01,820 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:01:01,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027939549] [2022-01-11 00:01:01,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:01:01,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:01:01,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:01:01,980 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 00:01:01,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:01:01,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027939549] [2022-01-11 00:01:01,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027939549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:01:01,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:01:01,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-11 00:01:01,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193204955] [2022-01-11 00:01:01,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:01:01,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-11 00:01:01,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:01:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-11 00:01:01,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-01-11 00:01:01,984 INFO L87 Difference]: Start difference. First operand 24918 states and 41262 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:01:06,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:01:06,091 INFO L93 Difference]: Finished difference Result 44838 states and 73234 transitions. [2022-01-11 00:01:06,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-01-11 00:01:06,092 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-11 00:01:06,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:01:06,186 INFO L225 Difference]: With dead ends: 44838 [2022-01-11 00:01:06,186 INFO L226 Difference]: Without dead ends: 32500 [2022-01-11 00:01:06,223 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2022-01-11 00:01:06,224 INFO L933 BasicCegarLoop]: 1505 mSDtfsCounter, 9471 mSDsluCounter, 7014 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9471 SdHoareTripleChecker+Valid, 8519 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-11 00:01:06,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9471 Valid, 8519 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-11 00:01:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32500 states. [2022-01-11 00:01:08,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32500 to 20439. [2022-01-11 00:01:08,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20439 states, 20435 states have (on average 1.657646195253242) internal successors, (33874), 20438 states have internal predecessors, (33874), 0 states have call successors, (0), 0 states 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 00:01:08,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20439 states to 20439 states and 33874 transitions. [2022-01-11 00:01:08,288 INFO L78 Accepts]: Start accepts. Automaton has 20439 states and 33874 transitions. Word has length 115 [2022-01-11 00:01:08,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:01:08,289 INFO L470 AbstractCegarLoop]: Abstraction has 20439 states and 33874 transitions. [2022-01-11 00:01:08,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:01:08,289 INFO L276 IsEmpty]: Start isEmpty. Operand 20439 states and 33874 transitions. [2022-01-11 00:01:08,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-11 00:01:08,330 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:01:08,330 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 00:01:08,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-11 00:01:08,330 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:01:08,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:01:08,331 INFO L85 PathProgramCache]: Analyzing trace with hash -369544617, now seen corresponding path program 1 times [2022-01-11 00:01:08,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:01:08,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037831427] [2022-01-11 00:01:08,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:01:08,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:01:08,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:01:08,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 00:01:08,459 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:01:08,459 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037831427] [2022-01-11 00:01:08,460 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037831427] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:01:08,460 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:01:08,460 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 00:01:08,460 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800617204] [2022-01-11 00:01:08,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:01:08,461 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 00:01:08,461 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:01:08,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 00:01:08,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 00:01:08,461 INFO L87 Difference]: Start difference. First operand 20439 states and 33874 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:01:19,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 00:01:19,179 INFO L93 Difference]: Finished difference Result 103371 states and 165544 transitions. [2022-01-11 00:01:19,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 00:01:19,180 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-11 00:01:19,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 00:01:19,355 INFO L225 Difference]: With dead ends: 103371 [2022-01-11 00:01:19,355 INFO L226 Difference]: Without dead ends: 88424 [2022-01-11 00:01:19,397 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 00:01:19,397 INFO L933 BasicCegarLoop]: 1591 mSDtfsCounter, 6833 mSDsluCounter, 5320 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6833 SdHoareTripleChecker+Valid, 6911 SdHoareTripleChecker+Invalid, 333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-11 00:01:19,398 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6833 Valid, 6911 Invalid, 333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-11 00:01:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88424 states. [2022-01-11 00:01:24,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88424 to 41096. [2022-01-11 00:01:24,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41096 states, 41092 states have (on average 1.652730458483403) internal successors, (67914), 41095 states have internal predecessors, (67914), 0 states have call successors, (0), 0 states 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 00:01:24,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41096 states to 41096 states and 67914 transitions. [2022-01-11 00:01:24,649 INFO L78 Accepts]: Start accepts. Automaton has 41096 states and 67914 transitions. Word has length 118 [2022-01-11 00:01:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 00:01:24,649 INFO L470 AbstractCegarLoop]: Abstraction has 41096 states and 67914 transitions. [2022-01-11 00:01:24,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 00:01:24,650 INFO L276 IsEmpty]: Start isEmpty. Operand 41096 states and 67914 transitions. [2022-01-11 00:01:24,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-11 00:01:24,685 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 00:01:24,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:01:24,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-11 00:01:24,686 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 00:01:24,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 00:01:24,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1006410568, now seen corresponding path program 1 times [2022-01-11 00:01:24,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 00:01:24,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848287677] [2022-01-11 00:01:24,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 00:01:24,687 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 00:01:24,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 00:01:24,884 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 00:01:24,884 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 00:01:24,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848287677] [2022-01-11 00:01:24,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848287677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 00:01:24,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 00:01:24,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-11 00:01:24,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129383245] [2022-01-11 00:01:24,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 00:01:24,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-11 00:01:24,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 00:01:24,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-11 00:01:24,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-11 00:01:24,886 INFO L87 Difference]: Start difference. First operand 41096 states and 67914 transitions. Second operand has 9 states, 9 states have (on average 13.222222222222221) internal successors, (119), 8 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)