/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:12:16,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:12:16,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:12:16,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:12:16,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:12:16,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:12:16,355 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:12:16,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:12:16,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:12:16,365 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:12:16,366 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:12:16,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:12:16,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:12:16,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:12:16,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:12:16,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:12:16,375 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:12:16,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:12:16,376 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:12:16,377 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:12:16,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:12:16,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:12:16,379 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:12:16,380 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:12:16,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:12:16,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:12:16,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:12:16,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:12:16,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:12:16,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:12:16,383 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:12:16,383 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:12:16,384 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:12:16,384 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:12:16,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:12:16,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:12:16,385 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:12:16,385 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:12:16,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:12:16,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:12:16,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:12:16,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:12:16,411 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:12:16,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:12:16,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:12:16,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:12:16,412 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:12:16,413 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:12:16,413 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:12:16,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:12:16,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:12:16,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:12:16,414 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:12:16,414 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:12:16,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:12:16,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:16,416 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:12:16,416 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:12:16,417 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:12:16,417 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:12:16,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:12:16,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:12:16,654 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:12:16,655 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:12:16,655 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:12:16,656 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 12:12:16,713 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7295f3e14/819bd2c8d8934bcd86fd7d449cf9988f/FLAGda3099145 [2022-01-10 12:12:17,276 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:12:17,277 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product20.cil.c [2022-01-10 12:12:17,299 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7295f3e14/819bd2c8d8934bcd86fd7d449cf9988f/FLAGda3099145 [2022-01-10 12:12:17,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7295f3e14/819bd2c8d8934bcd86fd7d449cf9988f [2022-01-10 12:12:17,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:12:17,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:12:17,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:17,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:12:17,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:12:17,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:17" (1/1) ... [2022-01-10 12:12:17,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538049f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:17, skipping insertion in model container [2022-01-10 12:12:17,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:17" (1/1) ... [2022-01-10 12:12:17,739 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:12:17,800 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:18,093 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_spec1_product20.cil.c[17698,17711] [2022-01-10 12:12:18,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:18,295 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:12:18,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:18,369 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_spec1_product20.cil.c[17698,17711] [2022-01-10 12:12:18,437 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:18,445 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:12:18,479 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_spec1_product20.cil.c[17698,17711] [2022-01-10 12:12:18,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:18,566 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:12:18,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18 WrapperNode [2022-01-10 12:12:18,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:18,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:18,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:12:18,568 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:12:18,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,613 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,717 INFO L137 Inliner]: procedures = 130, calls = 215, calls flagged for inlining = 125, calls inlined = 264, statements flattened = 3937 [2022-01-10 12:12:18,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:18,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:12:18,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:12:18,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:12:18,727 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,831 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:12:18,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:12:18,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:12:18,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:12:18,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (1/1) ... [2022-01-10 12:12:18,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:18,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:12:18,882 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:12:18,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:12:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:12:18,915 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:12:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:12:18,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:12:18,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:12:19,131 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:12:19,133 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:12:20,718 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:12:20,735 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:12:20,735 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:12:20,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:20 BoogieIcfgContainer [2022-01-10 12:12:20,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:12:20,740 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:12:20,740 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:12:20,742 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:12:20,744 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:20" (1/1) ... [2022-01-10 12:12:21,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:21 BasicIcfg [2022-01-10 12:12:21,047 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:12:21,048 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:12:21,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:12:21,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:12:21,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:12:17" (1/4) ... [2022-01-10 12:12:21,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32848910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:21, skipping insertion in model container [2022-01-10 12:12:21,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:18" (2/4) ... [2022-01-10 12:12:21,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32848910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:21, skipping insertion in model container [2022-01-10 12:12:21,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:20" (3/4) ... [2022-01-10 12:12:21,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32848910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:12:21, skipping insertion in model container [2022-01-10 12:12:21,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:21" (4/4) ... [2022-01-10 12:12:21,053 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product20.cil.cTransformedIcfg [2022-01-10 12:12:21,058 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:12:21,058 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:12:21,097 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:12:21,102 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:12:21,102 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:12:21,182 INFO L276 IsEmpty]: Start isEmpty. Operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:21,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 12:12:21,194 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:21,195 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] [2022-01-10 12:12:21,196 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)] === [2022-01-10 12:12:21,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:21,201 INFO L85 PathProgramCache]: Analyzing trace with hash 1430592713, now seen corresponding path program 1 times [2022-01-10 12:12:21,209 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:21,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492960633] [2022-01-10 12:12:21,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:21,210 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:21,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:21,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:21,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492960633] [2022-01-10 12:12:21,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492960633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:21,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:21,514 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:12:21,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520623517] [2022-01-10 12:12:21,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:21,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:12:21,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:21,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:12:21,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:12:21,545 INFO L87 Difference]: Start difference. First operand has 922 states, 915 states have (on average 1.6939890710382515) internal successors, (1550), 921 states have internal predecessors, (1550), 0 states have call successors, (0), 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) [2022-01-10 12:12:21,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:21,643 INFO L93 Difference]: Finished difference Result 1535 states and 2553 transitions. [2022-01-10 12:12:21,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:12:21,663 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 [2022-01-10 12:12:21,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:21,679 INFO L225 Difference]: With dead ends: 1535 [2022-01-10 12:12:21,679 INFO L226 Difference]: Without dead ends: 809 [2022-01-10 12:12:21,685 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 [2022-01-10 12:12:21,688 INFO L933 BasicCegarLoop]: 1536 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, 1536 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 [2022-01-10 12:12:21,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1536 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:21,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2022-01-10 12:12:21,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2022-01-10 12:12:21,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 803 states have (on average 1.7036114570361145) internal successors, (1368), 808 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:21,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1368 transitions. [2022-01-10 12:12:21,771 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1368 transitions. Word has length 51 [2022-01-10 12:12:21,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:21,771 INFO L470 AbstractCegarLoop]: Abstraction has 809 states and 1368 transitions. [2022-01-10 12:12:21,771 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) [2022-01-10 12:12:21,772 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1368 transitions. [2022-01-10 12:12:21,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:12:21,774 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:21,774 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] [2022-01-10 12:12:21,774 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:12:21,775 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)] === [2022-01-10 12:12:21,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:21,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1707060413, now seen corresponding path program 1 times [2022-01-10 12:12:21,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:21,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690331363] [2022-01-10 12:12:21,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:21,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:21,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:21,962 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:21,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690331363] [2022-01-10 12:12:21,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690331363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:21,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:21,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:12:21,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546410106] [2022-01-10 12:12:21,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:21,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:21,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:21,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:21,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:21,971 INFO L87 Difference]: Start difference. First operand 809 states and 1368 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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) [2022-01-10 12:12:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:22,046 INFO L93 Difference]: Finished difference Result 1206 states and 2013 transitions. [2022-01-10 12:12:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:22,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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 [2022-01-10 12:12:22,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:22,051 INFO L225 Difference]: With dead ends: 1206 [2022-01-10 12:12:22,051 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 12:12:22,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:22,054 INFO L933 BasicCegarLoop]: 1348 mSDtfsCounter, 664 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1971 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:22,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 1971 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:22,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 12:12:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 12:12:22,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.7023959646910467) internal successors, (1350), 796 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1350 transitions. [2022-01-10 12:12:22,081 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1350 transitions. Word has length 52 [2022-01-10 12:12:22,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:22,082 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1350 transitions. [2022-01-10 12:12:22,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 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) [2022-01-10 12:12:22,082 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1350 transitions. [2022-01-10 12:12:22,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 12:12:22,086 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:22,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:22,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:12:22,087 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:22,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:22,088 INFO L85 PathProgramCache]: Analyzing trace with hash 40653495, now seen corresponding path program 1 times [2022-01-10 12:12:22,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:22,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438220743] [2022-01-10 12:12:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:22,089 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:22,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:22,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:22,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438220743] [2022-01-10 12:12:22,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438220743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:22,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:22,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:22,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622709289] [2022-01-10 12:12:22,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:22,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:22,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:22,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:22,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:22,377 INFO L87 Difference]: Start difference. First operand 797 states and 1350 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:22,487 INFO L93 Difference]: Finished difference Result 1575 states and 2672 transitions. [2022-01-10 12:12:22,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:22,488 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 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 92 [2022-01-10 12:12:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:22,493 INFO L225 Difference]: With dead ends: 1575 [2022-01-10 12:12:22,494 INFO L226 Difference]: Without dead ends: 797 [2022-01-10 12:12:22,497 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 [2022-01-10 12:12:22,498 INFO L933 BasicCegarLoop]: 1329 mSDtfsCounter, 1325 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1325 SdHoareTripleChecker+Valid, 1342 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:22,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1325 Valid, 1342 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:22,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2022-01-10 12:12:22,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 797. [2022-01-10 12:12:22,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.699873896595208) internal successors, (1348), 796 states have internal predecessors, (1348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1348 transitions. [2022-01-10 12:12:22,544 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1348 transitions. Word has length 92 [2022-01-10 12:12:22,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:22,545 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1348 transitions. [2022-01-10 12:12:22,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:22,545 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1348 transitions. [2022-01-10 12:12:22,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 12:12:22,549 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:22,549 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:22,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:12:22,549 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:22,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:22,550 INFO L85 PathProgramCache]: Analyzing trace with hash -350066953, now seen corresponding path program 1 times [2022-01-10 12:12:22,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:22,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714730360] [2022-01-10 12:12:22,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:22,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:22,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:22,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:22,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714730360] [2022-01-10 12:12:22,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714730360] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:22,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:22,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:22,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412405589] [2022-01-10 12:12:22,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:22,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:22,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:22,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:22,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:22,707 INFO L87 Difference]: Start difference. First operand 797 states and 1348 transitions. Second operand has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:23,030 INFO L93 Difference]: Finished difference Result 3853 states and 6536 transitions. [2022-01-10 12:12:23,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:23,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 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 94 [2022-01-10 12:12:23,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:23,042 INFO L225 Difference]: With dead ends: 3853 [2022-01-10 12:12:23,042 INFO L226 Difference]: Without dead ends: 3080 [2022-01-10 12:12:23,044 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 [2022-01-10 12:12:23,046 INFO L933 BasicCegarLoop]: 2619 mSDtfsCounter, 6523 mSDsluCounter, 3916 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6523 SdHoareTripleChecker+Valid, 6535 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 [2022-01-10 12:12:23,046 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6523 Valid, 6535 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3080 states. [2022-01-10 12:12:23,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3080 to 797. [2022-01-10 12:12:23,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6986128625472887) internal successors, (1347), 796 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1347 transitions. [2022-01-10 12:12:23,099 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1347 transitions. Word has length 94 [2022-01-10 12:12:23,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:23,099 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1347 transitions. [2022-01-10 12:12:23,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.8) internal successors, (94), 5 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,100 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1347 transitions. [2022-01-10 12:12:23,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 12:12:23,101 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:23,101 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:23,102 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:12:23,102 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:23,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:23,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1915357923, now seen corresponding path program 1 times [2022-01-10 12:12:23,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:23,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672961665] [2022-01-10 12:12:23,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:23,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:23,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:23,225 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:23,225 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672961665] [2022-01-10 12:12:23,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672961665] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:23,226 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:23,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:23,226 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20217045] [2022-01-10 12:12:23,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:23,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:23,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:23,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:23,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:23,227 INFO L87 Difference]: Start difference. First operand 797 states and 1347 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:23,303 INFO L93 Difference]: Finished difference Result 1579 states and 2672 transitions. [2022-01-10 12:12:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:23,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 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 95 [2022-01-10 12:12:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:23,307 INFO L225 Difference]: With dead ends: 1579 [2022-01-10 12:12:23,307 INFO L226 Difference]: Without dead ends: 811 [2022-01-10 12:12:23,308 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:23,309 INFO L933 BasicCegarLoop]: 1361 mSDtfsCounter, 1326 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1326 SdHoareTripleChecker+Valid, 1383 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 [2022-01-10 12:12:23,309 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1326 Valid, 1383 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:23,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2022-01-10 12:12:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 797. [2022-01-10 12:12:23,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.6973518284993694) internal successors, (1346), 796 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1346 transitions. [2022-01-10 12:12:23,353 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1346 transitions. Word has length 95 [2022-01-10 12:12:23,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:23,358 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1346 transitions. [2022-01-10 12:12:23,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,358 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1346 transitions. [2022-01-10 12:12:23,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 12:12:23,363 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:23,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:23,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:12:23,364 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:23,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:23,365 INFO L85 PathProgramCache]: Analyzing trace with hash 378508406, now seen corresponding path program 1 times [2022-01-10 12:12:23,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:23,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472638500] [2022-01-10 12:12:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:23,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:23,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:23,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:23,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:23,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472638500] [2022-01-10 12:12:23,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472638500] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:23,503 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:23,503 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:23,503 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592685516] [2022-01-10 12:12:23,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:23,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:23,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:23,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:23,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:23,504 INFO L87 Difference]: Start difference. First operand 797 states and 1346 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:23,746 INFO L93 Difference]: Finished difference Result 2325 states and 3938 transitions. [2022-01-10 12:12:23,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:23,747 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-01-10 12:12:23,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:23,752 INFO L225 Difference]: With dead ends: 2325 [2022-01-10 12:12:23,752 INFO L226 Difference]: Without dead ends: 1562 [2022-01-10 12:12:23,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:23,753 INFO L933 BasicCegarLoop]: 1355 mSDtfsCounter, 6446 mSDsluCounter, 1369 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6446 SdHoareTripleChecker+Valid, 2724 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 [2022-01-10 12:12:23,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6446 Valid, 2724 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1562 states. [2022-01-10 12:12:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1562 to 797. [2022-01-10 12:12:23,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 797 states, 793 states have (on average 1.694829760403531) internal successors, (1344), 796 states have internal predecessors, (1344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 797 states to 797 states and 1344 transitions. [2022-01-10 12:12:23,796 INFO L78 Accepts]: Start accepts. Automaton has 797 states and 1344 transitions. Word has length 96 [2022-01-10 12:12:23,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:23,798 INFO L470 AbstractCegarLoop]: Abstraction has 797 states and 1344 transitions. [2022-01-10 12:12:23,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:23,798 INFO L276 IsEmpty]: Start isEmpty. Operand 797 states and 1344 transitions. [2022-01-10 12:12:23,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-01-10 12:12:23,799 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:23,799 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:23,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:12:23,800 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:23,800 INFO L85 PathProgramCache]: Analyzing trace with hash -615610439, now seen corresponding path program 1 times [2022-01-10 12:12:23,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:23,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510614915] [2022-01-10 12:12:23,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:23,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:23,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:23,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:23,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:23,949 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510614915] [2022-01-10 12:12:23,949 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510614915] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:23,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:23,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:12:23,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769474232] [2022-01-10 12:12:23,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:23,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:23,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:23,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:23,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:23,951 INFO L87 Difference]: Start difference. First operand 797 states and 1344 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:25,039 INFO L93 Difference]: Finished difference Result 3968 states and 6496 transitions. [2022-01-10 12:12:25,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:12:25,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2022-01-10 12:12:25,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:25,052 INFO L225 Difference]: With dead ends: 3968 [2022-01-10 12:12:25,052 INFO L226 Difference]: Without dead ends: 3531 [2022-01-10 12:12:25,058 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:12:25,060 INFO L933 BasicCegarLoop]: 1949 mSDtfsCounter, 9503 mSDsluCounter, 11535 mSDsCounter, 0 mSdLazyCounter, 732 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9503 SdHoareTripleChecker+Valid, 13484 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 732 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:25,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9503 Valid, 13484 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 732 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:12:25,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2022-01-10 12:12:25,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 1502. [2022-01-10 12:12:25,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7016021361815754) internal successors, (2549), 1501 states have internal predecessors, (2549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2549 transitions. [2022-01-10 12:12:25,179 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2549 transitions. Word has length 98 [2022-01-10 12:12:25,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:25,179 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2549 transitions. [2022-01-10 12:12:25,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 8 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,180 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2549 transitions. [2022-01-10 12:12:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 12:12:25,184 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:25,184 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:25,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:12:25,185 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:25,185 INFO L85 PathProgramCache]: Analyzing trace with hash -1219804352, now seen corresponding path program 1 times [2022-01-10 12:12:25,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:25,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002339970] [2022-01-10 12:12:25,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:25,186 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:25,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:25,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:25,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002339970] [2022-01-10 12:12:25,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002339970] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:25,282 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:25,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:25,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639043477] [2022-01-10 12:12:25,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:25,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:12:25,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:25,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:12:25,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:12:25,284 INFO L87 Difference]: Start difference. First operand 1502 states and 2549 transitions. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:25,475 INFO L93 Difference]: Finished difference Result 2406 states and 4020 transitions. [2022-01-10 12:12:25,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:12:25,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 12:12:25,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:25,482 INFO L225 Difference]: With dead ends: 2406 [2022-01-10 12:12:25,482 INFO L226 Difference]: Without dead ends: 1918 [2022-01-10 12:12:25,483 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 [2022-01-10 12:12:25,484 INFO L933 BasicCegarLoop]: 1338 mSDtfsCounter, 2185 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2185 SdHoareTripleChecker+Valid, 3013 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:25,484 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2185 Valid, 3013 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:25,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1918 states. [2022-01-10 12:12:25,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1918 to 1502. [2022-01-10 12:12:25,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1502 states, 1498 states have (on average 1.7009345794392523) internal successors, (2548), 1501 states have internal predecessors, (2548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1502 states to 1502 states and 2548 transitions. [2022-01-10 12:12:25,581 INFO L78 Accepts]: Start accepts. Automaton has 1502 states and 2548 transitions. Word has length 99 [2022-01-10 12:12:25,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:25,581 INFO L470 AbstractCegarLoop]: Abstraction has 1502 states and 2548 transitions. [2022-01-10 12:12:25,582 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:25,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1502 states and 2548 transitions. [2022-01-10 12:12:25,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 12:12:25,584 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:25,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:25,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:12:25,584 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:25,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:25,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1267315423, now seen corresponding path program 1 times [2022-01-10 12:12:25,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:25,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615049055] [2022-01-10 12:12:25,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:25,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:25,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:25,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:25,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:25,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615049055] [2022-01-10 12:12:25,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615049055] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:25,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:25,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:25,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547765600] [2022-01-10 12:12:25,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:25,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:25,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:25,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:25,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:25,718 INFO L87 Difference]: Start difference. First operand 1502 states and 2548 transitions. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:26,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:26,357 INFO L93 Difference]: Finished difference Result 4860 states and 8060 transitions. [2022-01-10 12:12:26,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:26,357 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2022-01-10 12:12:26,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:26,372 INFO L225 Difference]: With dead ends: 4860 [2022-01-10 12:12:26,372 INFO L226 Difference]: Without dead ends: 4154 [2022-01-10 12:12:26,374 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 [2022-01-10 12:12:26,375 INFO L933 BasicCegarLoop]: 3706 mSDtfsCounter, 3289 mSDsluCounter, 6972 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3289 SdHoareTripleChecker+Valid, 10678 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:26,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3289 Valid, 10678 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:12:26,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4154 states. [2022-01-10 12:12:26,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4154 to 1899. [2022-01-10 12:12:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1899 states, 1895 states have (on average 1.6770448548812664) internal successors, (3178), 1898 states have internal predecessors, (3178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1899 states to 1899 states and 3178 transitions. [2022-01-10 12:12:26,559 INFO L78 Accepts]: Start accepts. Automaton has 1899 states and 3178 transitions. Word has length 99 [2022-01-10 12:12:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:26,560 INFO L470 AbstractCegarLoop]: Abstraction has 1899 states and 3178 transitions. [2022-01-10 12:12:26,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 4 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1899 states and 3178 transitions. [2022-01-10 12:12:26,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 12:12:26,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:26,563 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:26,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:12:26,564 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:26,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:26,565 INFO L85 PathProgramCache]: Analyzing trace with hash 113740957, now seen corresponding path program 1 times [2022-01-10 12:12:26,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:26,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371656343] [2022-01-10 12:12:26,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:26,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:26,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:26,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:26,721 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:26,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371656343] [2022-01-10 12:12:26,721 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371656343] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:26,721 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:26,721 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:12:26,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962290090] [2022-01-10 12:12:26,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:26,722 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:26,722 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:26,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:26,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:26,723 INFO L87 Difference]: Start difference. First operand 1899 states and 3178 transitions. Second operand has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:28,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:28,172 INFO L93 Difference]: Finished difference Result 7532 states and 12302 transitions. [2022-01-10 12:12:28,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:12:28,173 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-10 12:12:28,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:28,208 INFO L225 Difference]: With dead ends: 7532 [2022-01-10 12:12:28,208 INFO L226 Difference]: Without dead ends: 6686 [2022-01-10 12:12:28,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 12:12:28,213 INFO L933 BasicCegarLoop]: 1778 mSDtfsCounter, 10422 mSDsluCounter, 10630 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10422 SdHoareTripleChecker+Valid, 12408 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:28,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10422 Valid, 12408 Invalid, 758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:12:28,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6686 states. [2022-01-10 12:12:28,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6686 to 3351. [2022-01-10 12:12:28,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3351 states, 3347 states have (on average 1.683896026292202) internal successors, (5636), 3350 states have internal predecessors, (5636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:28,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 5636 transitions. [2022-01-10 12:12:28,535 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 5636 transitions. Word has length 100 [2022-01-10 12:12:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:28,535 INFO L470 AbstractCegarLoop]: Abstraction has 3351 states and 5636 transitions. [2022-01-10 12:12:28,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.11111111111111) internal successors, (100), 8 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:28,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 5636 transitions. [2022-01-10 12:12:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 12:12:28,541 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:28,542 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:28,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:12:28,542 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:28,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:28,543 INFO L85 PathProgramCache]: Analyzing trace with hash 258347453, now seen corresponding path program 1 times [2022-01-10 12:12:28,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:28,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118906384] [2022-01-10 12:12:28,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:28,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:28,694 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:28,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118906384] [2022-01-10 12:12:28,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118906384] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:28,695 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:28,695 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:28,695 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446510367] [2022-01-10 12:12:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:28,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:12:28,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:28,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:12:28,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:12:28,697 INFO L87 Difference]: Start difference. First operand 3351 states and 5636 transitions. Second operand has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:30,167 INFO L93 Difference]: Finished difference Result 17808 states and 29677 transitions. [2022-01-10 12:12:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:30,168 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2022-01-10 12:12:30,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:30,209 INFO L225 Difference]: With dead ends: 17808 [2022-01-10 12:12:30,210 INFO L226 Difference]: Without dead ends: 16356 [2022-01-10 12:12:30,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:12:30,218 INFO L933 BasicCegarLoop]: 1945 mSDtfsCounter, 7700 mSDsluCounter, 7366 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7700 SdHoareTripleChecker+Valid, 9311 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:30,219 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7700 Valid, 9311 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16356 states. [2022-01-10 12:12:30,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16356 to 6378. [2022-01-10 12:12:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6374 states have (on average 1.6846564166928146) internal successors, (10738), 6377 states have internal predecessors, (10738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:30,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 10738 transitions. [2022-01-10 12:12:30,870 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 10738 transitions. Word has length 100 [2022-01-10 12:12:30,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:30,870 INFO L470 AbstractCegarLoop]: Abstraction has 6378 states and 10738 transitions. [2022-01-10 12:12:30,871 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.666666666666668) internal successors, (100), 6 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:30,871 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 10738 transitions. [2022-01-10 12:12:30,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:12:30,880 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:30,880 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:30,880 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:12:30,881 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:30,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:30,881 INFO L85 PathProgramCache]: Analyzing trace with hash 972967677, now seen corresponding path program 1 times [2022-01-10 12:12:30,881 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:30,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412815540] [2022-01-10 12:12:30,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:30,882 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:30,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:31,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:31,008 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:31,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412815540] [2022-01-10 12:12:31,008 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412815540] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:31,008 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:31,008 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:31,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402869497] [2022-01-10 12:12:31,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:31,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:12:31,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:31,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:12:31,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:12:31,010 INFO L87 Difference]: Start difference. First operand 6378 states and 10738 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:33,477 INFO L93 Difference]: Finished difference Result 33356 states and 55668 transitions. [2022-01-10 12:12:33,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:33,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:12:33,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:33,557 INFO L225 Difference]: With dead ends: 33356 [2022-01-10 12:12:33,557 INFO L226 Difference]: Without dead ends: 30782 [2022-01-10 12:12:33,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:12:33,572 INFO L933 BasicCegarLoop]: 1923 mSDtfsCounter, 7501 mSDsluCounter, 5830 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7501 SdHoareTripleChecker+Valid, 7753 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:33,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7501 Valid, 7753 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:12:33,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30782 states. [2022-01-10 12:12:34,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30782 to 12400. [2022-01-10 12:12:34,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12400 states, 12396 states have (on average 1.6865117779929009) internal successors, (20906), 12399 states have internal predecessors, (20906), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:34,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12400 states to 12400 states and 20906 transitions. [2022-01-10 12:12:34,630 INFO L78 Accepts]: Start accepts. Automaton has 12400 states and 20906 transitions. Word has length 101 [2022-01-10 12:12:34,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:34,630 INFO L470 AbstractCegarLoop]: Abstraction has 12400 states and 20906 transitions. [2022-01-10 12:12:34,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:34,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12400 states and 20906 transitions. [2022-01-10 12:12:34,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:12:34,650 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:34,650 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:34,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:12:34,651 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:34,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:34,651 INFO L85 PathProgramCache]: Analyzing trace with hash -432659994, now seen corresponding path program 1 times [2022-01-10 12:12:34,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:34,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845770765] [2022-01-10 12:12:34,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:34,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:34,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:34,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845770765] [2022-01-10 12:12:34,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845770765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:34,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:34,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:34,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955371779] [2022-01-10 12:12:34,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:34,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:12:34,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:34,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:12:34,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:34,815 INFO L87 Difference]: Start difference. First operand 12400 states and 20906 transitions. Second operand has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:38,031 INFO L93 Difference]: Finished difference Result 29274 states and 48622 transitions. [2022-01-10 12:12:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:12:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:12:38,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:38,216 INFO L225 Difference]: With dead ends: 29274 [2022-01-10 12:12:38,216 INFO L226 Difference]: Without dead ends: 24708 [2022-01-10 12:12:38,238 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2022-01-10 12:12:38,241 INFO L933 BasicCegarLoop]: 3944 mSDtfsCounter, 4670 mSDsluCounter, 12868 mSDsCounter, 0 mSdLazyCounter, 559 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4670 SdHoareTripleChecker+Valid, 16812 SdHoareTripleChecker+Invalid, 604 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 559 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:38,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4670 Valid, 16812 Invalid, 604 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 559 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:12:38,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24708 states. [2022-01-10 12:12:39,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24708 to 14000. [2022-01-10 12:12:39,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.66747642183481) internal successors, (23338), 13999 states have internal predecessors, (23338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:39,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23338 transitions. [2022-01-10 12:12:39,867 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23338 transitions. Word has length 101 [2022-01-10 12:12:39,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:39,867 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23338 transitions. [2022-01-10 12:12:39,868 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.428571428571429) internal successors, (101), 6 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:39,868 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23338 transitions. [2022-01-10 12:12:39,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 12:12:39,887 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:39,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:39,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:12:39,888 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:39,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:39,888 INFO L85 PathProgramCache]: Analyzing trace with hash -914315097, now seen corresponding path program 1 times [2022-01-10 12:12:39,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:39,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810123733] [2022-01-10 12:12:39,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:39,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:39,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:39,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:39,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810123733] [2022-01-10 12:12:39,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810123733] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:39,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:39,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:39,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020631493] [2022-01-10 12:12:39,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:39,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:39,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:39,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:39,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:39,974 INFO L87 Difference]: Start difference. First operand 14000 states and 23338 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:42,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:42,009 INFO L93 Difference]: Finished difference Result 41656 states and 69490 transitions. [2022-01-10 12:12:42,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:12:42,010 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2022-01-10 12:12:42,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:42,075 INFO L225 Difference]: With dead ends: 41656 [2022-01-10 12:12:42,075 INFO L226 Difference]: Without dead ends: 27706 [2022-01-10 12:12:42,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:42,102 INFO L933 BasicCegarLoop]: 2589 mSDtfsCounter, 3966 mSDsluCounter, 1296 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3966 SdHoareTripleChecker+Valid, 3885 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:42,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3966 Valid, 3885 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:42,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27706 states. [2022-01-10 12:12:43,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27706 to 14000. [2022-01-10 12:12:43,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14000 states, 13996 states have (on average 1.667333523863961) internal successors, (23336), 13999 states have internal predecessors, (23336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:43,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14000 states to 14000 states and 23336 transitions. [2022-01-10 12:12:43,319 INFO L78 Accepts]: Start accepts. Automaton has 14000 states and 23336 transitions. Word has length 101 [2022-01-10 12:12:43,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:43,320 INFO L470 AbstractCegarLoop]: Abstraction has 14000 states and 23336 transitions. [2022-01-10 12:12:43,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:43,320 INFO L276 IsEmpty]: Start isEmpty. Operand 14000 states and 23336 transitions. [2022-01-10 12:12:43,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 12:12:43,340 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:43,340 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:43,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:12:43,341 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:43,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:43,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1830903543, now seen corresponding path program 1 times [2022-01-10 12:12:43,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:43,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804329838] [2022-01-10 12:12:43,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:43,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:43,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:43,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:43,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804329838] [2022-01-10 12:12:43,544 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804329838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:43,544 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:43,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:12:43,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967058377] [2022-01-10 12:12:43,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:43,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:12:43,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:43,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:12:43,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:12:43,547 INFO L87 Difference]: Start difference. First operand 14000 states and 23336 transitions. Second operand has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:49,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:49,568 INFO L93 Difference]: Finished difference Result 71352 states and 118200 transitions. [2022-01-10 12:12:49,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:12:49,569 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-10 12:12:49,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:49,706 INFO L225 Difference]: With dead ends: 71352 [2022-01-10 12:12:49,706 INFO L226 Difference]: Without dead ends: 65946 [2022-01-10 12:12:49,730 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 12:12:49,731 INFO L933 BasicCegarLoop]: 1929 mSDtfsCounter, 7439 mSDsluCounter, 5868 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7439 SdHoareTripleChecker+Valid, 7797 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:49,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7439 Valid, 7797 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:12:49,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65946 states. [2022-01-10 12:12:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65946 to 27508. [2022-01-10 12:12:52,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27508 states, 27504 states have (on average 1.669284467713787) internal successors, (45912), 27507 states have internal predecessors, (45912), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:52,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27508 states to 27508 states and 45912 transitions. [2022-01-10 12:12:52,236 INFO L78 Accepts]: Start accepts. Automaton has 27508 states and 45912 transitions. Word has length 102 [2022-01-10 12:12:52,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:52,236 INFO L470 AbstractCegarLoop]: Abstraction has 27508 states and 45912 transitions. [2022-01-10 12:12:52,237 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.0) internal successors, (102), 6 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:52,237 INFO L276 IsEmpty]: Start isEmpty. Operand 27508 states and 45912 transitions. [2022-01-10 12:12:52,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 12:12:52,276 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:52,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:52,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:12:52,276 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:52,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:52,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1002483754, now seen corresponding path program 1 times [2022-01-10 12:12:52,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:52,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88966605] [2022-01-10 12:12:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:52,277 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:52,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:52,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:52,449 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:52,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88966605] [2022-01-10 12:12:52,451 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88966605] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:52,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:52,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:52,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804581552] [2022-01-10 12:12:52,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:52,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:52,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:52,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:52,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:52,452 INFO L87 Difference]: Start difference. First operand 27508 states and 45912 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:55,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:55,736 INFO L93 Difference]: Finished difference Result 36522 states and 60446 transitions. [2022-01-10 12:12:55,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:55,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2022-01-10 12:12:55,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:55,791 INFO L225 Difference]: With dead ends: 36522 [2022-01-10 12:12:55,792 INFO L226 Difference]: Without dead ends: 32708 [2022-01-10 12:12:55,804 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:55,804 INFO L933 BasicCegarLoop]: 1339 mSDtfsCounter, 927 mSDsluCounter, 3186 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 927 SdHoareTripleChecker+Valid, 4525 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:55,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [927 Valid, 4525 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:55,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32708 states. [2022-01-10 12:12:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32708 to 32466. [2022-01-10 12:12:58,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6592323331895755) internal successors, (53862), 32465 states have internal predecessors, (53862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:58,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53862 transitions. [2022-01-10 12:12:58,478 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53862 transitions. Word has length 102 [2022-01-10 12:12:58,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:58,479 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53862 transitions. [2022-01-10 12:12:58,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:12:58,479 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53862 transitions. [2022-01-10 12:12:58,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-01-10 12:12:58,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:58,510 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:58,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:12:58,510 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:58,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:58,511 INFO L85 PathProgramCache]: Analyzing trace with hash -372811543, now seen corresponding path program 1 times [2022-01-10 12:12:58,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:58,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586517937] [2022-01-10 12:12:58,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:58,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:58,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:58,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586517937] [2022-01-10 12:12:58,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586517937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:58,585 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:58,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:58,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813268349] [2022-01-10 12:12:58,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:58,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:58,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:58,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:58,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:58,586 INFO L87 Difference]: Start difference. First operand 32466 states and 53862 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:02,363 INFO L93 Difference]: Finished difference Result 60546 states and 98695 transitions. [2022-01-10 12:13:02,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:13:02,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 104 [2022-01-10 12:13:02,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:02,425 INFO L225 Difference]: With dead ends: 60546 [2022-01-10 12:13:02,425 INFO L226 Difference]: Without dead ends: 42256 [2022-01-10 12:13:02,452 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:13:02,452 INFO L933 BasicCegarLoop]: 1564 mSDtfsCounter, 623 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:02,453 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [623 Valid, 2541 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:13:02,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42256 states. [2022-01-10 12:13:05,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42256 to 32466. [2022-01-10 12:13:05,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32466 states, 32462 states have (on average 1.6518390733781037) internal successors, (53622), 32465 states have internal predecessors, (53622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32466 states to 32466 states and 53622 transitions. [2022-01-10 12:13:05,586 INFO L78 Accepts]: Start accepts. Automaton has 32466 states and 53622 transitions. Word has length 104 [2022-01-10 12:13:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:05,586 INFO L470 AbstractCegarLoop]: Abstraction has 32466 states and 53622 transitions. [2022-01-10 12:13:05,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 32466 states and 53622 transitions. [2022-01-10 12:13:05,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2022-01-10 12:13:05,609 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:05,609 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:05,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:13:05,609 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:05,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1371094718, now seen corresponding path program 1 times [2022-01-10 12:13:05,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:05,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841411697] [2022-01-10 12:13:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:05,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:05,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:05,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:05,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:05,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841411697] [2022-01-10 12:13:05,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841411697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:05,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:05,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:05,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496973370] [2022-01-10 12:13:05,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:05,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:05,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:05,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:05,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:05,730 INFO L87 Difference]: Start difference. First operand 32466 states and 53622 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:12,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:13:12,907 INFO L93 Difference]: Finished difference Result 94096 states and 153014 transitions. [2022-01-10 12:13:12,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:13:12,908 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2022-01-10 12:13:12,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:13:13,016 INFO L225 Difference]: With dead ends: 94096 [2022-01-10 12:13:13,016 INFO L226 Difference]: Without dead ends: 75166 [2022-01-10 12:13:13,044 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 [2022-01-10 12:13:13,045 INFO L933 BasicCegarLoop]: 1405 mSDtfsCounter, 2449 mSDsluCounter, 4090 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2449 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:13:13,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2449 Valid, 5495 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:13:13,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75166 states. [2022-01-10 12:13:18,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75166 to 61866. [2022-01-10 12:13:18,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61866 states, 61862 states have (on average 1.6493162199734894) internal successors, (102030), 61865 states have internal predecessors, (102030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61866 states to 61866 states and 102030 transitions. [2022-01-10 12:13:19,066 INFO L78 Accepts]: Start accepts. Automaton has 61866 states and 102030 transitions. Word has length 105 [2022-01-10 12:13:19,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:13:19,067 INFO L470 AbstractCegarLoop]: Abstraction has 61866 states and 102030 transitions. [2022-01-10 12:13:19,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:13:19,067 INFO L276 IsEmpty]: Start isEmpty. Operand 61866 states and 102030 transitions. [2022-01-10 12:13:19,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-01-10 12:13:19,112 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:13:19,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:13:19,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:13:19,113 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:13:19,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:13:19,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1279595085, now seen corresponding path program 1 times [2022-01-10 12:13:19,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:13:19,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117455175] [2022-01-10 12:13:19,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:13:19,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:13:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:13:19,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:13:19,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:13:19,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117455175] [2022-01-10 12:13:19,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117455175] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:13:19,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:13:19,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:13:19,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019899334] [2022-01-10 12:13:19,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:13:19,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:13:19,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:13:19,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:13:19,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:13:19,193 INFO L87 Difference]: Start difference. First operand 61866 states and 102030 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 4 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)