/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-11 05:38:19,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-11 05:38:19,923 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-11 05:38:19,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-11 05:38:19,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-11 05:38:19,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-11 05:38:19,982 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-11 05:38:19,983 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-11 05:38:19,984 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-11 05:38:19,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-11 05:38:19,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-11 05:38:19,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-11 05:38:19,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-11 05:38:19,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-11 05:38:19,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-11 05:38:19,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-11 05:38:19,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-11 05:38:19,989 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-11 05:38:19,991 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-11 05:38:19,992 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-11 05:38:19,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-11 05:38:19,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-11 05:38:19,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-11 05:38:19,995 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-11 05:38:19,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-11 05:38:19,997 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-11 05:38:19,997 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-11 05:38:19,998 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-11 05:38:19,998 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-11 05:38:19,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-11 05:38:19,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-11 05:38:19,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-11 05:38:20,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-11 05:38:20,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-11 05:38:20,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-11 05:38:20,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-11 05:38:20,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-11 05:38:20,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-11 05:38:20,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-11 05:38:20,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-11 05:38:20,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-11 05:38:20,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_SUM.epf [2022-01-11 05:38:20,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-11 05:38:20,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-11 05:38:20,026 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-11 05:38:20,026 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-11 05:38:20,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-11 05:38:20,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-11 05:38:20,027 INFO L138 SettingsManager]: * Use SBE=true [2022-01-11 05:38:20,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-11 05:38:20,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-11 05:38:20,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-11 05:38:20,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-11 05:38:20,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-11 05:38:20,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-11 05:38:20,028 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-11 05:38:20,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-11 05:38:20,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-11 05:38:20,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:38:20,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-11 05:38:20,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-11 05:38:20,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-11 05:38:20,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-11 05:38:20,032 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-11 05:38:20,033 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_SUM WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-11 05:38:20,208 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-11 05:38:20,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-11 05:38:20,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-11 05:38:20,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-11 05:38:20,234 INFO L275 PluginConnector]: CDTParser initialized [2022-01-11 05:38:20,235 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c [2022-01-11 05:38:20,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fce57098/f56b4d16af5e40c597d28451c7c29de6/FLAG13a67beb4 [2022-01-11 05:38:20,762 INFO L306 CDTParser]: Found 1 translation units. [2022-01-11 05:38:20,763 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c [2022-01-11 05:38:20,776 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fce57098/f56b4d16af5e40c597d28451c7c29de6/FLAG13a67beb4 [2022-01-11 05:38:20,788 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fce57098/f56b4d16af5e40c597d28451c7c29de6 [2022-01-11 05:38:20,790 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-11 05:38:20,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-11 05:38:20,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-11 05:38:20,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-11 05:38:20,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-11 05:38:20,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:38:20" (1/1) ... [2022-01-11 05:38:20,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@353f867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:20, skipping insertion in model container [2022-01-11 05:38:20,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.01 05:38:20" (1/1) ... [2022-01-11 05:38:20,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-11 05:38:20,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:38:21,062 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c[9373,9386] [2022-01-11 05:38:21,251 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:21,268 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-11 05:38:21,276 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-11 05:38:21,300 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c[9373,9386] [2022-01-11 05:38:21,364 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:21,369 INFO L203 MainTranslator]: Completed pre-run [2022-01-11 05:38:21,384 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec0_product38.cil.c[9373,9386] [2022-01-11 05:38:21,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-11 05:38:21,446 INFO L208 MainTranslator]: Completed translation [2022-01-11 05:38:21,446 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21 WrapperNode [2022-01-11 05:38:21,446 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-11 05:38:21,449 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-11 05:38:21,449 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-11 05:38:21,449 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-11 05:38:21,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,480 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,548 INFO L137 Inliner]: procedures = 126, calls = 195, calls flagged for inlining = 107, calls inlined = 210, statements flattened = 2933 [2022-01-11 05:38:21,549 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-11 05:38:21,550 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-11 05:38:21,550 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-11 05:38:21,550 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-11 05:38:21,556 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,624 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,629 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-11 05:38:21,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-11 05:38:21,650 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-11 05:38:21,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-11 05:38:21,653 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (1/1) ... [2022-01-11 05:38:21,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-11 05:38:21,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-11 05:38:21,677 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-11 05:38:21,679 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-11 05:38:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-11 05:38:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-11 05:38:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-11 05:38:21,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-11 05:38:21,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-11 05:38:21,907 INFO L234 CfgBuilder]: Building ICFG [2022-01-11 05:38:21,908 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-11 05:38:23,120 INFO L275 CfgBuilder]: Performing block encoding [2022-01-11 05:38:23,134 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-11 05:38:23,134 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-11 05:38:23,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:23 BoogieIcfgContainer [2022-01-11 05:38:23,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-11 05:38:23,137 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-11 05:38:23,137 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-11 05:38:23,139 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-11 05:38:23,141 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:23" (1/1) ... [2022-01-11 05:38:23,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:38:23 BasicIcfg [2022-01-11 05:38:23,389 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-11 05:38:23,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-11 05:38:23,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-11 05:38:23,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-11 05:38:23,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.01 05:38:20" (1/4) ... [2022-01-11 05:38:23,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251df48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:38:23, skipping insertion in model container [2022-01-11 05:38:23,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.01 05:38:21" (2/4) ... [2022-01-11 05:38:23,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251df48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.01 05:38:23, skipping insertion in model container [2022-01-11 05:38:23,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.01 05:38:23" (3/4) ... [2022-01-11 05:38:23,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251df48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.01 05:38:23, skipping insertion in model container [2022-01-11 05:38:23,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 11.01 05:38:23" (4/4) ... [2022-01-11 05:38:23,394 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec0_product38.cil.cTransformedIcfg [2022-01-11 05:38:23,397 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-11 05:38:23,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-11 05:38:23,439 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-11 05:38:23,443 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-11 05:38:23,443 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-11 05:38:23,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 658 states, 651 states have (on average 1.6712749615975422) internal successors, (1088), 657 states have internal predecessors, (1088), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:23,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-11 05:38:23,477 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:23,477 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:23,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:23,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:23,481 INFO L85 PathProgramCache]: Analyzing trace with hash -151393236, now seen corresponding path program 1 times [2022-01-11 05:38:23,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:23,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223840532] [2022-01-11 05:38:23,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:23,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:23,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:23,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:23,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223840532] [2022-01-11 05:38:23,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223840532] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:23,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:23,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-11 05:38:23,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229990958] [2022-01-11 05:38:23,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:23,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-11 05:38:23,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:23,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-11 05:38:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:38:23,820 INFO L87 Difference]: Start difference. First operand has 658 states, 651 states have (on average 1.6712749615975422) internal successors, (1088), 657 states have internal predecessors, (1088), 0 states have call successors, (0), 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 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:23,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:23,881 INFO L93 Difference]: Finished difference Result 1007 states and 1629 transitions. [2022-01-11 05:38:23,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-11 05:38:23,883 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-11 05:38:23,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:23,898 INFO L225 Difference]: With dead ends: 1007 [2022-01-11 05:38:23,899 INFO L226 Difference]: Without dead ends: 611 [2022-01-11 05:38:23,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-11 05:38:23,907 INFO L933 BasicCegarLoop]: 1074 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, 1074 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:23,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:23,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-01-11 05:38:24,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2022-01-11 05:38:24,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.6793388429752065) internal successors, (1016), 610 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1016 transitions. [2022-01-11 05:38:24,049 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1016 transitions. Word has length 51 [2022-01-11 05:38:24,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:24,049 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1016 transitions. [2022-01-11 05:38:24,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1016 transitions. [2022-01-11 05:38:24,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-11 05:38:24,054 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:24,054 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] [2022-01-11 05:38:24,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-11 05:38:24,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:24,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1515572634, now seen corresponding path program 1 times [2022-01-11 05:38:24,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:24,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008861443] [2022-01-11 05:38:24,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:24,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:24,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:24,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:24,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008861443] [2022-01-11 05:38:24,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008861443] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:24,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:24,257 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:24,257 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586412386] [2022-01-11 05:38:24,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:24,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:24,259 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:24,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:24,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:24,260 INFO L87 Difference]: Start difference. First operand 611 states and 1016 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:24,341 INFO L93 Difference]: Finished difference Result 1203 states and 2004 transitions. [2022-01-11 05:38:24,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2022-01-11 05:38:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:24,343 INFO L225 Difference]: With dead ends: 1203 [2022-01-11 05:38:24,343 INFO L226 Difference]: Without dead ends: 611 [2022-01-11 05:38:24,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:24,346 INFO L933 BasicCegarLoop]: 995 mSDtfsCounter, 991 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:24,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 1008 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:24,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 611 states. [2022-01-11 05:38:24,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 611 to 611. [2022-01-11 05:38:24,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.6760330578512397) internal successors, (1014), 610 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1014 transitions. [2022-01-11 05:38:24,374 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1014 transitions. Word has length 52 [2022-01-11 05:38:24,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:24,375 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1014 transitions. [2022-01-11 05:38:24,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,378 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1014 transitions. [2022-01-11 05:38:24,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-11 05:38:24,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:24,384 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] [2022-01-11 05:38:24,385 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-11 05:38:24,385 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash -480520730, now seen corresponding path program 1 times [2022-01-11 05:38:24,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:24,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903991277] [2022-01-11 05:38:24,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:24,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:24,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:24,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:24,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903991277] [2022-01-11 05:38:24,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903991277] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:24,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:24,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:38:24,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093958175] [2022-01-11 05:38:24,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:24,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:24,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:24,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:24,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:24,494 INFO L87 Difference]: Start difference. First operand 611 states and 1014 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:24,723 INFO L93 Difference]: Finished difference Result 2923 states and 4866 transitions. [2022-01-11 05:38:24,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-11 05:38:24,723 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2022-01-11 05:38:24,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:24,734 INFO L225 Difference]: With dead ends: 2923 [2022-01-11 05:38:24,734 INFO L226 Difference]: Without dead ends: 2336 [2022-01-11 05:38:24,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-11 05:38:24,741 INFO L933 BasicCegarLoop]: 1951 mSDtfsCounter, 4853 mSDsluCounter, 2914 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 4865 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:24,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4853 Valid, 4865 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:24,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2336 states. [2022-01-11 05:38:24,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2336 to 611. [2022-01-11 05:38:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.6743801652892563) internal successors, (1013), 610 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1013 transitions. [2022-01-11 05:38:24,781 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1013 transitions. Word has length 54 [2022-01-11 05:38:24,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:24,781 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1013 transitions. [2022-01-11 05:38:24,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,781 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1013 transitions. [2022-01-11 05:38:24,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-11 05:38:24,782 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:24,782 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 05:38:24,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-11 05:38:24,782 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:24,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:24,783 INFO L85 PathProgramCache]: Analyzing trace with hash 678125062, now seen corresponding path program 1 times [2022-01-11 05:38:24,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:24,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233806199] [2022-01-11 05:38:24,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:24,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:24,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:24,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:24,882 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:24,882 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233806199] [2022-01-11 05:38:24,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233806199] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:24,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:24,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:24,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140913107] [2022-01-11 05:38:24,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:24,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:24,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:24,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:24,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:24,884 INFO L87 Difference]: Start difference. First operand 611 states and 1013 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 05:38:24,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:24,936 INFO L93 Difference]: Finished difference Result 1207 states and 2004 transitions. [2022-01-11 05:38:24,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:24,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 05:38:24,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:24,939 INFO L225 Difference]: With dead ends: 1207 [2022-01-11 05:38:24,939 INFO L226 Difference]: Without dead ends: 625 [2022-01-11 05:38:24,940 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 05:38:24,946 INFO L933 BasicCegarLoop]: 1027 mSDtfsCounter, 992 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:24,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 1049 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:24,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625 states. [2022-01-11 05:38:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625 to 611. [2022-01-11 05:38:24,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.6727272727272726) internal successors, (1012), 610 states have internal predecessors, (1012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1012 transitions. [2022-01-11 05:38:24,973 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1012 transitions. Word has length 55 [2022-01-11 05:38:24,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:24,975 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1012 transitions. [2022-01-11 05:38:24,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 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 05:38:24,975 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1012 transitions. [2022-01-11 05:38:24,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-11 05:38:24,977 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:24,977 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 05:38:24,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-11 05:38:24,977 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:24,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:24,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1389833637, now seen corresponding path program 1 times [2022-01-11 05:38:24,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:24,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571979647] [2022-01-11 05:38:24,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:24,978 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:25,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:25,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:25,100 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:25,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571979647] [2022-01-11 05:38:25,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571979647] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:25,100 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:25,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-11 05:38:25,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485943979] [2022-01-11 05:38:25,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:25,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:25,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:25,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:25,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:25,102 INFO L87 Difference]: Start difference. First operand 611 states and 1012 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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 05:38:25,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:25,254 INFO L93 Difference]: Finished difference Result 1767 states and 2936 transitions. [2022-01-11 05:38:25,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-11 05:38:25,254 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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 05:38:25,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:25,260 INFO L225 Difference]: With dead ends: 1767 [2022-01-11 05:38:25,260 INFO L226 Difference]: Without dead ends: 1190 [2022-01-11 05:38:25,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-11 05:38:25,262 INFO L933 BasicCegarLoop]: 1021 mSDtfsCounter, 4776 mSDsluCounter, 1035 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4776 SdHoareTripleChecker+Valid, 2056 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:25,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4776 Valid, 2056 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:25,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1190 states. [2022-01-11 05:38:25,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1190 to 611. [2022-01-11 05:38:25,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 611 states, 605 states have (on average 1.6694214876033058) internal successors, (1010), 610 states have internal predecessors, (1010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:25,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 1010 transitions. [2022-01-11 05:38:25,305 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 1010 transitions. Word has length 56 [2022-01-11 05:38:25,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:25,305 INFO L470 AbstractCegarLoop]: Abstraction has 611 states and 1010 transitions. [2022-01-11 05:38:25,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 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 05:38:25,305 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 1010 transitions. [2022-01-11 05:38:25,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-11 05:38:25,306 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:25,306 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:25,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-11 05:38:25,307 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:25,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1465020632, now seen corresponding path program 1 times [2022-01-11 05:38:25,307 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:25,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185173366] [2022-01-11 05:38:25,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:25,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:25,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:25,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185173366] [2022-01-11 05:38:25,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185173366] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:25,421 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:25,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:25,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390826353] [2022-01-11 05:38:25,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:25,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:25,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:25,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:25,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:25,423 INFO L87 Difference]: Start difference. First operand 611 states and 1010 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:25,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:25,675 INFO L93 Difference]: Finished difference Result 1926 states and 3148 transitions. [2022-01-11 05:38:25,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:25,675 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-11 05:38:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:25,680 INFO L225 Difference]: With dead ends: 1926 [2022-01-11 05:38:25,680 INFO L226 Difference]: Without dead ends: 1677 [2022-01-11 05:38:25,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-11 05:38:25,682 INFO L933 BasicCegarLoop]: 996 mSDtfsCounter, 2334 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 4109 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:25,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2334 Valid, 4109 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:25,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1677 states. [2022-01-11 05:38:25,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1677 to 1171. [2022-01-11 05:38:25,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1171 states, 1165 states have (on average 1.6746781115879827) internal successors, (1951), 1170 states have internal predecessors, (1951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:25,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1171 states to 1171 states and 1951 transitions. [2022-01-11 05:38:25,765 INFO L78 Accepts]: Start accepts. Automaton has 1171 states and 1951 transitions. Word has length 58 [2022-01-11 05:38:25,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:25,766 INFO L470 AbstractCegarLoop]: Abstraction has 1171 states and 1951 transitions. [2022-01-11 05:38:25,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:25,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1171 states and 1951 transitions. [2022-01-11 05:38:25,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-01-11 05:38:25,767 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:25,767 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] [2022-01-11 05:38:25,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-11 05:38:25,767 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:25,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:25,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1323776416, now seen corresponding path program 1 times [2022-01-11 05:38:25,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:25,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704866105] [2022-01-11 05:38:25,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:25,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:25,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:25,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:25,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:25,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704866105] [2022-01-11 05:38:25,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704866105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:25,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:25,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:25,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140094010] [2022-01-11 05:38:25,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:25,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:25,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:25,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:25,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:25,850 INFO L87 Difference]: Start difference. First operand 1171 states and 1951 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:26,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:26,143 INFO L93 Difference]: Finished difference Result 3753 states and 6159 transitions. [2022-01-11 05:38:26,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:26,143 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2022-01-11 05:38:26,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:26,156 INFO L225 Difference]: With dead ends: 3753 [2022-01-11 05:38:26,156 INFO L226 Difference]: Without dead ends: 3289 [2022-01-11 05:38:26,159 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 05:38:26,160 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 1931 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1931 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:26,161 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1931 Valid, 4312 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2022-01-11 05:38:26,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 2277. [2022-01-11 05:38:26,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2277 states, 2271 states have (on average 1.6842800528401585) internal successors, (3825), 2276 states have internal predecessors, (3825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:26,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2277 states to 2277 states and 3825 transitions. [2022-01-11 05:38:26,315 INFO L78 Accepts]: Start accepts. Automaton has 2277 states and 3825 transitions. Word has length 59 [2022-01-11 05:38:26,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:26,315 INFO L470 AbstractCegarLoop]: Abstraction has 2277 states and 3825 transitions. [2022-01-11 05:38:26,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 4 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:26,316 INFO L276 IsEmpty]: Start isEmpty. Operand 2277 states and 3825 transitions. [2022-01-11 05:38:26,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-01-11 05:38:26,317 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:26,317 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] [2022-01-11 05:38:26,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-11 05:38:26,317 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:26,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:26,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1056582978, now seen corresponding path program 1 times [2022-01-11 05:38:26,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:26,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562435736] [2022-01-11 05:38:26,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:26,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:26,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:26,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:26,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:26,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562435736] [2022-01-11 05:38:26,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562435736] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:26,399 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:26,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:26,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521011348] [2022-01-11 05:38:26,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:26,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-11 05:38:26,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:26,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-11 05:38:26,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:26,400 INFO L87 Difference]: Start difference. First operand 2277 states and 3825 transitions. Second operand has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:26,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:26,811 INFO L93 Difference]: Finished difference Result 7198 states and 11882 transitions. [2022-01-11 05:38:26,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-11 05:38:26,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2022-01-11 05:38:26,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:26,833 INFO L225 Difference]: With dead ends: 7198 [2022-01-11 05:38:26,834 INFO L226 Difference]: Without dead ends: 5957 [2022-01-11 05:38:26,839 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 05:38:26,839 INFO L933 BasicCegarLoop]: 1199 mSDtfsCounter, 1930 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 4312 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:26,839 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 4312 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:26,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5957 states. [2022-01-11 05:38:27,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5957 to 4201. [2022-01-11 05:38:27,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4201 states, 4195 states have (on average 1.695828367103695) internal successors, (7114), 4200 states have internal predecessors, (7114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4201 states to 4201 states and 7114 transitions. [2022-01-11 05:38:27,078 INFO L78 Accepts]: Start accepts. Automaton has 4201 states and 7114 transitions. Word has length 60 [2022-01-11 05:38:27,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:27,078 INFO L470 AbstractCegarLoop]: Abstraction has 4201 states and 7114 transitions. [2022-01-11 05:38:27,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4201 states and 7114 transitions. [2022-01-11 05:38:27,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-01-11 05:38:27,081 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:27,082 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:27,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-11 05:38:27,082 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:27,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:27,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1985189165, now seen corresponding path program 1 times [2022-01-11 05:38:27,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:27,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286596295] [2022-01-11 05:38:27,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:27,083 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:27,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:27,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:27,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286596295] [2022-01-11 05:38:27,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286596295] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:27,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:27,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:27,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739932590] [2022-01-11 05:38:27,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:27,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:27,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:27,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:27,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:27,136 INFO L87 Difference]: Start difference. First operand 4201 states and 7114 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:27,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:27,460 INFO L93 Difference]: Finished difference Result 12113 states and 20476 transitions. [2022-01-11 05:38:27,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:27,461 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2022-01-11 05:38:27,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:27,485 INFO L225 Difference]: With dead ends: 12113 [2022-01-11 05:38:27,486 INFO L226 Difference]: Without dead ends: 7949 [2022-01-11 05:38:27,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:27,491 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 954 mSDsluCounter, 909 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 954 SdHoareTripleChecker+Valid, 1916 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:27,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [954 Valid, 1916 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:27,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7949 states. [2022-01-11 05:38:27,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7949 to 5913. [2022-01-11 05:38:27,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5913 states, 5907 states have (on average 1.7265955645843913) internal successors, (10199), 5912 states have internal predecessors, (10199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:27,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 10199 transitions. [2022-01-11 05:38:27,763 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 10199 transitions. Word has length 71 [2022-01-11 05:38:27,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:27,765 INFO L470 AbstractCegarLoop]: Abstraction has 5913 states and 10199 transitions. [2022-01-11 05:38:27,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:27,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 10199 transitions. [2022-01-11 05:38:27,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-01-11 05:38:27,772 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:27,772 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:27,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-11 05:38:27,772 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:27,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash -309853896, now seen corresponding path program 1 times [2022-01-11 05:38:27,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:27,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122681934] [2022-01-11 05:38:27,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:27,773 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:27,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:27,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:27,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:27,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122681934] [2022-01-11 05:38:27,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122681934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:27,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:27,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:27,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652614945] [2022-01-11 05:38:27,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:27,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:27,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:27,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:27,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:27,835 INFO L87 Difference]: Start difference. First operand 5913 states and 10199 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:28,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:28,307 INFO L93 Difference]: Finished difference Result 17649 states and 30467 transitions. [2022-01-11 05:38:28,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:28,307 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-01-11 05:38:28,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:28,332 INFO L225 Difference]: With dead ends: 17649 [2022-01-11 05:38:28,332 INFO L226 Difference]: Without dead ends: 11773 [2022-01-11 05:38:28,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:28,343 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 952 mSDsluCounter, 1003 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 952 SdHoareTripleChecker+Valid, 2010 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:28,343 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [952 Valid, 2010 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:28,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11773 states. [2022-01-11 05:38:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11773 to 9737. [2022-01-11 05:38:28,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9737 states, 9731 states have (on average 1.7569622854793958) internal successors, (17097), 9736 states have internal predecessors, (17097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:28,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9737 states to 9737 states and 17097 transitions. [2022-01-11 05:38:28,752 INFO L78 Accepts]: Start accepts. Automaton has 9737 states and 17097 transitions. Word has length 72 [2022-01-11 05:38:28,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:28,752 INFO L470 AbstractCegarLoop]: Abstraction has 9737 states and 17097 transitions. [2022-01-11 05:38:28,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:28,753 INFO L276 IsEmpty]: Start isEmpty. Operand 9737 states and 17097 transitions. [2022-01-11 05:38:28,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-01-11 05:38:28,757 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:28,757 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:28,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-11 05:38:28,758 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:28,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:28,758 INFO L85 PathProgramCache]: Analyzing trace with hash -1479265748, now seen corresponding path program 1 times [2022-01-11 05:38:28,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:28,758 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912530189] [2022-01-11 05:38:28,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:28,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:28,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:28,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:28,805 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:28,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912530189] [2022-01-11 05:38:28,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912530189] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:28,805 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:28,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:28,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241549112] [2022-01-11 05:38:28,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:28,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:28,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:28,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:28,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:28,806 INFO L87 Difference]: Start difference. First operand 9737 states and 17097 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:29,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:29,391 INFO L93 Difference]: Finished difference Result 28945 states and 50873 transitions. [2022-01-11 05:38:29,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:29,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-01-11 05:38:29,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:29,432 INFO L225 Difference]: With dead ends: 28945 [2022-01-11 05:38:29,432 INFO L226 Difference]: Without dead ends: 19245 [2022-01-11 05:38:29,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:29,448 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 950 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:29,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [950 Valid, 2002 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:29,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19245 states. [2022-01-11 05:38:30,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19245 to 17209. [2022-01-11 05:38:30,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17209 states, 17203 states have (on average 1.7781200953322096) internal successors, (30589), 17208 states have internal predecessors, (30589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:30,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17209 states to 17209 states and 30589 transitions. [2022-01-11 05:38:30,339 INFO L78 Accepts]: Start accepts. Automaton has 17209 states and 30589 transitions. Word has length 73 [2022-01-11 05:38:30,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:30,339 INFO L470 AbstractCegarLoop]: Abstraction has 17209 states and 30589 transitions. [2022-01-11 05:38:30,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 17209 states and 30589 transitions. [2022-01-11 05:38:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-01-11 05:38:30,346 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:30,346 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:30,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-11 05:38:30,347 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:30,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:30,347 INFO L85 PathProgramCache]: Analyzing trace with hash 671722014, now seen corresponding path program 1 times [2022-01-11 05:38:30,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:30,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17124331] [2022-01-11 05:38:30,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:30,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:30,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:30,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:30,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17124331] [2022-01-11 05:38:30,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17124331] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:30,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:30,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:30,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834540041] [2022-01-11 05:38:30,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:30,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:30,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:30,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:30,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:30,397 INFO L87 Difference]: Start difference. First operand 17209 states and 30589 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:31,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:31,365 INFO L93 Difference]: Finished difference Result 49505 states and 87957 transitions. [2022-01-11 05:38:31,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:31,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-01-11 05:38:31,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:31,436 INFO L225 Difference]: With dead ends: 49505 [2022-01-11 05:38:31,436 INFO L226 Difference]: Without dead ends: 32333 [2022-01-11 05:38:31,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:31,458 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 948 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:31,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 1954 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:31,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32333 states. [2022-01-11 05:38:32,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32333 to 30297. [2022-01-11 05:38:32,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30297 states, 30291 states have (on average 1.7876266877950546) internal successors, (54149), 30296 states have internal predecessors, (54149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:32,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30297 states to 30297 states and 54149 transitions. [2022-01-11 05:38:32,715 INFO L78 Accepts]: Start accepts. Automaton has 30297 states and 54149 transitions. Word has length 74 [2022-01-11 05:38:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:32,715 INFO L470 AbstractCegarLoop]: Abstraction has 30297 states and 54149 transitions. [2022-01-11 05:38:32,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:32,716 INFO L276 IsEmpty]: Start isEmpty. Operand 30297 states and 54149 transitions. [2022-01-11 05:38:32,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-01-11 05:38:32,724 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:32,724 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:32,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-11 05:38:32,724 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:32,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:32,725 INFO L85 PathProgramCache]: Analyzing trace with hash -321334846, now seen corresponding path program 1 times [2022-01-11 05:38:32,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:32,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296638591] [2022-01-11 05:38:32,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:32,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:32,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296638591] [2022-01-11 05:38:32,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296638591] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:32,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:32,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-11 05:38:32,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079853001] [2022-01-11 05:38:32,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:32,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-11 05:38:32,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:32,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-11 05:38:32,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:32,783 INFO L87 Difference]: Start difference. First operand 30297 states and 54149 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:34,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:34,769 INFO L93 Difference]: Finished difference Result 86721 states and 154925 transitions. [2022-01-11 05:38:34,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-11 05:38:34,770 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-01-11 05:38:34,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:34,880 INFO L225 Difference]: With dead ends: 86721 [2022-01-11 05:38:34,880 INFO L226 Difference]: Without dead ends: 56461 [2022-01-11 05:38:34,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-11 05:38:34,917 INFO L933 BasicCegarLoop]: 1007 mSDtfsCounter, 946 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 1954 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:34,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 1954 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:34,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56461 states. [2022-01-11 05:38:36,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56461 to 54425. [2022-01-11 05:38:36,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54425 states, 54419 states have (on average 1.7915250188353333) internal successors, (97493), 54424 states have internal predecessors, (97493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:37,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54425 states to 54425 states and 97493 transitions. [2022-01-11 05:38:37,115 INFO L78 Accepts]: Start accepts. Automaton has 54425 states and 97493 transitions. Word has length 75 [2022-01-11 05:38:37,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:37,115 INFO L470 AbstractCegarLoop]: Abstraction has 54425 states and 97493 transitions. [2022-01-11 05:38:37,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 54425 states and 97493 transitions. [2022-01-11 05:38:37,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-01-11 05:38:37,123 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:37,123 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:37,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-11 05:38:37,124 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:37,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash -908349813, now seen corresponding path program 1 times [2022-01-11 05:38:37,124 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:37,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607974351] [2022-01-11 05:38:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:37,125 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:37,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:37,359 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-11 05:38:37,359 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:37,359 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607974351] [2022-01-11 05:38:37,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607974351] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:37,360 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:37,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:37,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219990173] [2022-01-11 05:38:37,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:37,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:38:37,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:37,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:38:37,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:37,361 INFO L87 Difference]: Start difference. First operand 54425 states and 97493 transitions. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:38,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:38,401 INFO L93 Difference]: Finished difference Result 60843 states and 108967 transitions. [2022-01-11 05:38:38,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:38:38,401 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-01-11 05:38:38,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:38,468 INFO L225 Difference]: With dead ends: 60843 [2022-01-11 05:38:38,468 INFO L226 Difference]: Without dead ends: 33489 [2022-01-11 05:38:38,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:38,499 INFO L933 BasicCegarLoop]: 1455 mSDtfsCounter, 1421 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1421 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:38,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1421 Valid, 1986 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-11 05:38:38,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33489 states. [2022-01-11 05:38:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33489 to 27105. [2022-01-11 05:38:39,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27105 states, 27099 states have (on average 1.7854164360308498) internal successors, (48383), 27104 states have internal predecessors, (48383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27105 states to 27105 states and 48383 transitions. [2022-01-11 05:38:39,683 INFO L78 Accepts]: Start accepts. Automaton has 27105 states and 48383 transitions. Word has length 76 [2022-01-11 05:38:39,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:39,683 INFO L470 AbstractCegarLoop]: Abstraction has 27105 states and 48383 transitions. [2022-01-11 05:38:39,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:39,683 INFO L276 IsEmpty]: Start isEmpty. Operand 27105 states and 48383 transitions. [2022-01-11 05:38:39,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-01-11 05:38:39,689 INFO L506 BasicCegarLoop]: Found error trace [2022-01-11 05:38:39,689 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-11 05:38:39,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-11 05:38:39,690 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-11 05:38:39,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-11 05:38:39,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1543344706, now seen corresponding path program 1 times [2022-01-11 05:38:39,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-11 05:38:39,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981509030] [2022-01-11 05:38:39,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-11 05:38:39,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-11 05:38:39,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-11 05:38:39,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-11 05:38:39,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-11 05:38:39,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981509030] [2022-01-11 05:38:39,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981509030] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-11 05:38:39,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-11 05:38:39,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-11 05:38:39,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160887454] [2022-01-11 05:38:39,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-11 05:38:39,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-11 05:38:39,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-11 05:38:39,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-11 05:38:39,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-11 05:38:39,787 INFO L87 Difference]: Start difference. First operand 27105 states and 48383 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:40,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-11 05:38:40,806 INFO L93 Difference]: Finished difference Result 27558 states and 49106 transitions. [2022-01-11 05:38:40,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-11 05:38:40,807 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 78 [2022-01-11 05:38:40,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-11 05:38:40,807 INFO L225 Difference]: With dead ends: 27558 [2022-01-11 05:38:40,807 INFO L226 Difference]: Without dead ends: 0 [2022-01-11 05:38:40,818 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-11 05:38:40,819 INFO L933 BasicCegarLoop]: 1228 mSDtfsCounter, 660 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 660 SdHoareTripleChecker+Valid, 3022 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-11 05:38:40,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [660 Valid, 3022 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-11 05:38:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-11 05:38:40,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-11 05:38:40,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:40,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-11 05:38:40,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2022-01-11 05:38:40,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-11 05:38:40,820 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-11 05:38:40,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-11 05:38:40,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-11 05:38:40,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-11 05:38:40,822 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-11 05:38:40,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-11 05:38:40,824 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.