/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_spec8_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:20:53,872 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:20:53,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:20:53,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:20:53,944 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:20:53,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:20:53,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:20:53,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:20:53,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:20:53,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:20:53,955 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:20:53,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:20:53,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:20:53,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:20:53,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:20:53,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:20:53,961 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:20:53,962 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:20:53,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:20:53,967 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:20:53,968 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:20:53,969 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:20:53,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:20:53,970 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:20:53,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:20:53,975 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:20:53,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:20:53,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:20:53,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:20:53,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:20:53,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:20:53,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:20:53,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:20:53,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:20:53,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:20:53,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:20:53,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:20:53,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:20:53,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:20:53,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:20:53,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:20:53,982 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 12:20:54,005 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:20:54,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:20:54,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:20:54,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:20:54,007 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:20:54,007 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:20:54,007 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:20:54,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:20:54,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:20:54,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:20:54,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:20:54,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:20:54,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:20:54,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:20:54,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:20:54,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:20:54,011 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:20:54,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:20:54,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:20:54,190 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:20:54,192 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:20:54,193 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:20:54,193 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:20:54,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2022-01-10 12:20:54,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc3d4d34/4f7168cc5f2647d38e7b6504a1236e7a/FLAG662e7d611 [2022-01-10 12:20:54,625 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:20:54,625 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c [2022-01-10 12:20:54,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc3d4d34/4f7168cc5f2647d38e7b6504a1236e7a/FLAG662e7d611 [2022-01-10 12:20:54,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1cc3d4d34/4f7168cc5f2647d38e7b6504a1236e7a [2022-01-10 12:20:54,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:20:54,650 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:20:54,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:20:54,651 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:20:54,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:20:54,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:20:54" (1/1) ... [2022-01-10 12:20:54,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b3a19ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:54, skipping insertion in model container [2022-01-10 12:20:54,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:20:54" (1/1) ... [2022-01-10 12:20:54,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:20:54,749 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:20:55,065 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c[37064,37077] [2022-01-10 12:20:55,180 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:55,200 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:20:55,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:20:55,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c[37064,37077] [2022-01-10 12:20:55,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:55,293 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:20:55,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec8_product32.cil.c[37064,37077] [2022-01-10 12:20:55,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:20:55,366 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:20:55,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55 WrapperNode [2022-01-10 12:20:55,367 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:20:55,368 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:20:55,368 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:20:55,368 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:20:55,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,504 INFO L137 Inliner]: procedures = 137, calls = 242, calls flagged for inlining = 145, calls inlined = 346, statements flattened = 5275 [2022-01-10 12:20:55,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:20:55,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:20:55,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:20:55,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:20:55,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,521 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,553 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,574 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,582 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:20:55,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:20:55,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:20:55,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:20:55,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (1/1) ... [2022-01-10 12:20:55,600 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:20:55,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:20:55,619 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 12:20:55,645 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 12:20:55,668 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:20:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:20:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:20:55,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:20:55,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:20:55,813 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:20:55,814 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:20:57,625 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:20:57,638 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:20:57,638 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:20:57,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:57 BoogieIcfgContainer [2022-01-10 12:20:57,641 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:20:57,641 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:20:57,641 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:20:57,642 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:20:57,644 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:57" (1/1) ... [2022-01-10 12:20:57,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:20:57 BasicIcfg [2022-01-10 12:20:57,957 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:20:57,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:20:57,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:20:57,960 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:20:57,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:20:54" (1/4) ... [2022-01-10 12:20:57,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88b33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:20:57, skipping insertion in model container [2022-01-10 12:20:57,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:20:55" (2/4) ... [2022-01-10 12:20:57,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88b33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:20:57, skipping insertion in model container [2022-01-10 12:20:57,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:20:57" (3/4) ... [2022-01-10 12:20:57,961 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a88b33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:20:57, skipping insertion in model container [2022-01-10 12:20:57,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:20:57" (4/4) ... [2022-01-10 12:20:57,962 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec8_product32.cil.cTransformedIcfg [2022-01-10 12:20:57,965 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:20:57,965 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:20:57,996 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:20:58,001 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 12:20:58,001 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:20:58,021 INFO L276 IsEmpty]: Start isEmpty. Operand has 1182 states, 1175 states have (on average 1.686808510638298) internal successors, (1982), 1181 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states 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 12:20:58,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-01-10 12:20:58,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:58,030 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:58,030 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:58,034 INFO L85 PathProgramCache]: Analyzing trace with hash 913292926, now seen corresponding path program 1 times [2022-01-10 12:20:58,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:58,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823289057] [2022-01-10 12:20:58,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:58,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:58,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:58,357 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 12:20:58,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:58,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823289057] [2022-01-10 12:20:58,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823289057] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:58,372 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:58,372 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:20:58,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628619274] [2022-01-10 12:20:58,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:58,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:20:58,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:58,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:20:58,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:20:58,416 INFO L87 Difference]: Start difference. First operand has 1182 states, 1175 states have (on average 1.686808510638298) internal successors, (1982), 1181 states have internal predecessors, (1982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:58,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:58,482 INFO L93 Difference]: Finished difference Result 2055 states and 3417 transitions. [2022-01-10 12:20:58,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:20:58,484 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-01-10 12:20:58,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:58,497 INFO L225 Difference]: With dead ends: 2055 [2022-01-10 12:20:58,497 INFO L226 Difference]: Without dead ends: 990 [2022-01-10 12:20:58,503 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 12:20:58,505 INFO L933 BasicCegarLoop]: 1968 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, 1968 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 12:20:58,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1968 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:58,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 990 states. [2022-01-10 12:20:58,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 990 to 990. [2022-01-10 12:20:58,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 990 states, 984 states have (on average 1.6961382113821137) internal successors, (1669), 989 states have internal predecessors, (1669), 0 states have call successors, (0), 0 states 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 12:20:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1669 transitions. [2022-01-10 12:20:58,587 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1669 transitions. Word has length 55 [2022-01-10 12:20:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:58,587 INFO L470 AbstractCegarLoop]: Abstraction has 990 states and 1669 transitions. [2022-01-10 12:20:58,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1669 transitions. [2022-01-10 12:20:58,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:20:58,590 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:58,590 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:58,590 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:20:58,591 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:58,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:58,608 INFO L85 PathProgramCache]: Analyzing trace with hash 2005374084, now seen corresponding path program 1 times [2022-01-10 12:20:58,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:58,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890867440] [2022-01-10 12:20:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:58,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:58,825 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 12:20:58,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:58,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890867440] [2022-01-10 12:20:58,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890867440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:58,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:58,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:20:58,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186270849] [2022-01-10 12:20:58,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:58,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:58,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:58,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:58,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:58,828 INFO L87 Difference]: Start difference. First operand 990 states and 1669 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:58,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:58,877 INFO L93 Difference]: Finished difference Result 1576 states and 2627 transitions. [2022-01-10 12:20:58,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:58,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2022-01-10 12:20:58,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:58,883 INFO L225 Difference]: With dead ends: 1576 [2022-01-10 12:20:58,883 INFO L226 Difference]: Without dead ends: 992 [2022-01-10 12:20:58,887 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 12:20:58,889 INFO L933 BasicCegarLoop]: 1649 mSDtfsCounter, 704 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 2555 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:58,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 2555 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:58,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-01-10 12:20:58,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 978. [2022-01-10 12:20:58,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6950718685831623) internal successors, (1651), 977 states have internal predecessors, (1651), 0 states have call successors, (0), 0 states 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 12:20:58,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1651 transitions. [2022-01-10 12:20:58,918 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1651 transitions. Word has length 56 [2022-01-10 12:20:58,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:58,919 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1651 transitions. [2022-01-10 12:20:58,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:58,922 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1651 transitions. [2022-01-10 12:20:58,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-01-10 12:20:58,929 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:58,929 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:58,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:20:58,930 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:58,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:58,930 INFO L85 PathProgramCache]: Analyzing trace with hash 68136773, now seen corresponding path program 1 times [2022-01-10 12:20:58,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:58,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130527091] [2022-01-10 12:20:58,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:58,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:59,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:59,073 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 12:20:59,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:59,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130527091] [2022-01-10 12:20:59,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130527091] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:59,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:59,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:20:59,075 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927055709] [2022-01-10 12:20:59,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:59,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:59,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:59,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:59,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:59,077 INFO L87 Difference]: Start difference. First operand 978 states and 1651 transitions. Second operand has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:59,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:59,197 INFO L93 Difference]: Finished difference Result 1724 states and 2870 transitions. [2022-01-10 12:20:59,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:59,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2022-01-10 12:20:59,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:59,201 INFO L225 Difference]: With dead ends: 1724 [2022-01-10 12:20:59,202 INFO L226 Difference]: Without dead ends: 1208 [2022-01-10 12:20:59,203 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 12:20:59,203 INFO L933 BasicCegarLoop]: 1961 mSDtfsCounter, 839 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 3119 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 12:20:59,204 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [839 Valid, 3119 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:59,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1208 states. [2022-01-10 12:20:59,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1208 to 978. [2022-01-10 12:20:59,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.688911704312115) internal successors, (1645), 977 states have internal predecessors, (1645), 0 states have call successors, (0), 0 states 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 12:20:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1645 transitions. [2022-01-10 12:20:59,289 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1645 transitions. Word has length 108 [2022-01-10 12:20:59,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:59,289 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1645 transitions. [2022-01-10 12:20:59,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.0) internal successors, (108), 3 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:59,290 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1645 transitions. [2022-01-10 12:20:59,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-01-10 12:20:59,291 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:59,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:59,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:20:59,291 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:59,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:59,292 INFO L85 PathProgramCache]: Analyzing trace with hash 783553461, now seen corresponding path program 1 times [2022-01-10 12:20:59,292 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:59,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87730008] [2022-01-10 12:20:59,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:59,292 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:59,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:59,437 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 12:20:59,437 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:59,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87730008] [2022-01-10 12:20:59,437 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87730008] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:59,437 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:59,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:20:59,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460590398] [2022-01-10 12:20:59,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:59,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:20:59,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:59,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:20:59,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:20:59,439 INFO L87 Difference]: Start difference. First operand 978 states and 1645 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:59,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:59,516 INFO L93 Difference]: Finished difference Result 1937 states and 3262 transitions. [2022-01-10 12:20:59,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:20:59,516 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 109 [2022-01-10 12:20:59,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:59,520 INFO L225 Difference]: With dead ends: 1937 [2022-01-10 12:20:59,520 INFO L226 Difference]: Without dead ends: 978 [2022-01-10 12:20:59,521 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 12:20:59,529 INFO L933 BasicCegarLoop]: 1624 mSDtfsCounter, 1620 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:20:59,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 1637 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:20:59,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2022-01-10 12:20:59,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 978. [2022-01-10 12:20:59,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6868583162217659) internal successors, (1643), 977 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states 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 12:20:59,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1643 transitions. [2022-01-10 12:20:59,556 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1643 transitions. Word has length 109 [2022-01-10 12:20:59,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:20:59,557 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1643 transitions. [2022-01-10 12:20:59,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:59,557 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1643 transitions. [2022-01-10 12:20:59,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-01-10 12:20:59,563 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:20:59,563 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:20:59,564 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:20:59,564 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:20:59,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:20:59,565 INFO L85 PathProgramCache]: Analyzing trace with hash -512960075, now seen corresponding path program 1 times [2022-01-10 12:20:59,565 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:20:59,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162118236] [2022-01-10 12:20:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:20:59,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:20:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:20:59,683 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 12:20:59,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:20:59,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162118236] [2022-01-10 12:20:59,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162118236] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:20:59,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:20:59,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:20:59,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378173907] [2022-01-10 12:20:59,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:20:59,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:20:59,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:20:59,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:20:59,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:20:59,685 INFO L87 Difference]: Start difference. First operand 978 states and 1643 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:20:59,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:20:59,956 INFO L93 Difference]: Finished difference Result 4758 states and 8011 transitions. [2022-01-10 12:20:59,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:20:59,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-01-10 12:20:59,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:20:59,967 INFO L225 Difference]: With dead ends: 4758 [2022-01-10 12:20:59,968 INFO L226 Difference]: Without dead ends: 3804 [2022-01-10 12:20:59,969 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 12:20:59,972 INFO L933 BasicCegarLoop]: 3209 mSDtfsCounter, 7998 mSDsluCounter, 4801 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7998 SdHoareTripleChecker+Valid, 8010 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 12:20:59,972 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7998 Valid, 8010 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:20:59,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3804 states. [2022-01-10 12:21:00,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3804 to 978. [2022-01-10 12:21:00,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6858316221765914) internal successors, (1642), 977 states have internal predecessors, (1642), 0 states have call successors, (0), 0 states 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 12:21:00,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1642 transitions. [2022-01-10 12:21:00,027 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1642 transitions. Word has length 111 [2022-01-10 12:21:00,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:00,027 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1642 transitions. [2022-01-10 12:21:00,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:00,027 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1642 transitions. [2022-01-10 12:21:00,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2022-01-10 12:21:00,029 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:00,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:00,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:21:00,029 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:00,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1795530337, now seen corresponding path program 1 times [2022-01-10 12:21:00,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:00,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760191044] [2022-01-10 12:21:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:00,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:00,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:00,144 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 12:21:00,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:00,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760191044] [2022-01-10 12:21:00,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760191044] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:00,145 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:00,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:21:00,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782266026] [2022-01-10 12:21:00,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:00,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:21:00,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:00,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:21:00,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:21:00,146 INFO L87 Difference]: Start difference. First operand 978 states and 1642 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:00,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:00,205 INFO L93 Difference]: Finished difference Result 1941 states and 3262 transitions. [2022-01-10 12:21:00,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:21:00,206 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 112 [2022-01-10 12:21:00,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:00,209 INFO L225 Difference]: With dead ends: 1941 [2022-01-10 12:21:00,209 INFO L226 Difference]: Without dead ends: 992 [2022-01-10 12:21:00,212 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 12:21:00,212 INFO L933 BasicCegarLoop]: 1656 mSDtfsCounter, 1621 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 1678 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 12:21:00,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1621 Valid, 1678 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:21:00,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-01-10 12:21:00,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 978. [2022-01-10 12:21:00,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6848049281314168) internal successors, (1641), 977 states have internal predecessors, (1641), 0 states have call successors, (0), 0 states 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 12:21:00,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1641 transitions. [2022-01-10 12:21:00,246 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1641 transitions. Word has length 112 [2022-01-10 12:21:00,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:00,246 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1641 transitions. [2022-01-10 12:21:00,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:00,246 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1641 transitions. [2022-01-10 12:21:00,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-01-10 12:21:00,248 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:00,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:00,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:21:00,249 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:00,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:00,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1637792854, now seen corresponding path program 1 times [2022-01-10 12:21:00,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:00,249 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831127563] [2022-01-10 12:21:00,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:00,249 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:00,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:00,368 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 12:21:00,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:00,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831127563] [2022-01-10 12:21:00,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831127563] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:00,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:00,369 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:00,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346037172] [2022-01-10 12:21:00,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:00,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:00,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:00,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:00,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:00,370 INFO L87 Difference]: Start difference. First operand 978 states and 1641 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:00,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:00,562 INFO L93 Difference]: Finished difference Result 2868 states and 4823 transitions. [2022-01-10 12:21:00,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:21:00,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-01-10 12:21:00,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:00,569 INFO L225 Difference]: With dead ends: 2868 [2022-01-10 12:21:00,569 INFO L226 Difference]: Without dead ends: 1924 [2022-01-10 12:21:00,570 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 12:21:00,571 INFO L933 BasicCegarLoop]: 1650 mSDtfsCounter, 7921 mSDsluCounter, 1664 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7921 SdHoareTripleChecker+Valid, 3314 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 12:21:00,571 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7921 Valid, 3314 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:21:00,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1924 states. [2022-01-10 12:21:00,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1924 to 978. [2022-01-10 12:21:00,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 978 states, 974 states have (on average 1.6827515400410678) internal successors, (1639), 977 states have internal predecessors, (1639), 0 states have call successors, (0), 0 states 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 12:21:00,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1639 transitions. [2022-01-10 12:21:00,622 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1639 transitions. Word has length 113 [2022-01-10 12:21:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:00,623 INFO L470 AbstractCegarLoop]: Abstraction has 978 states and 1639 transitions. [2022-01-10 12:21:00,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1639 transitions. [2022-01-10 12:21:00,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-01-10 12:21:00,624 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:00,624 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:00,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:21:00,625 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:00,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:00,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2142565965, now seen corresponding path program 1 times [2022-01-10 12:21:00,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:00,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576509608] [2022-01-10 12:21:00,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:00,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:00,748 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 12:21:00,749 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:00,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576509608] [2022-01-10 12:21:00,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576509608] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:00,749 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:00,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:21:00,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634654405] [2022-01-10 12:21:00,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:00,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:21:00,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:00,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:21:00,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:21:00,750 INFO L87 Difference]: Start difference. First operand 978 states and 1639 transitions. Second operand has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:01,494 INFO L93 Difference]: Finished difference Result 7484 states and 12408 transitions. [2022-01-10 12:21:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:21:01,495 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-01-10 12:21:01,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:01,516 INFO L225 Difference]: With dead ends: 7484 [2022-01-10 12:21:01,516 INFO L226 Difference]: Without dead ends: 6828 [2022-01-10 12:21:01,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:21:01,521 INFO L933 BasicCegarLoop]: 3052 mSDtfsCounter, 13067 mSDsluCounter, 10964 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13067 SdHoareTripleChecker+Valid, 14016 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:01,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13067 Valid, 14016 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:21:01,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2022-01-10 12:21:01,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 1698. [2022-01-10 12:21:01,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6853600944510034) internal successors, (2855), 1697 states have internal predecessors, (2855), 0 states have call successors, (0), 0 states 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 12:21:01,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2855 transitions. [2022-01-10 12:21:01,635 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2855 transitions. Word has length 115 [2022-01-10 12:21:01,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:01,635 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2855 transitions. [2022-01-10 12:21:01,635 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.166666666666668) internal successors, (115), 6 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:01,635 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2855 transitions. [2022-01-10 12:21:01,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:21:01,638 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:01,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:21:01,638 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:21:01,647 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:01,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:01,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1951436272, now seen corresponding path program 1 times [2022-01-10 12:21:01,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:01,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886196679] [2022-01-10 12:21:01,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:01,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:01,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:01,762 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 12:21:01,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:01,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886196679] [2022-01-10 12:21:01,762 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886196679] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:01,762 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:01,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:01,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736625588] [2022-01-10 12:21:01,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:01,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:01,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:01,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:01,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:01,763 INFO L87 Difference]: Start difference. First operand 1698 states and 2855 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 12:21:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:01,970 INFO L93 Difference]: Finished difference Result 3619 states and 5989 transitions. [2022-01-10 12:21:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:21:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 12:21:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:01,978 INFO L225 Difference]: With dead ends: 3619 [2022-01-10 12:21:01,978 INFO L226 Difference]: Without dead ends: 2537 [2022-01-10 12:21:01,980 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 12:21:01,980 INFO L933 BasicCegarLoop]: 1621 mSDtfsCounter, 5523 mSDsluCounter, 1930 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5523 SdHoareTripleChecker+Valid, 3551 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 12:21:01,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5523 Valid, 3551 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 12:21:01,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2537 states. [2022-01-10 12:21:02,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2537 to 1698. [2022-01-10 12:21:02,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6829988193624557) internal successors, (2851), 1697 states have internal predecessors, (2851), 0 states have call successors, (0), 0 states 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 12:21:02,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2851 transitions. [2022-01-10 12:21:02,078 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2851 transitions. Word has length 116 [2022-01-10 12:21:02,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:02,078 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2851 transitions. [2022-01-10 12:21:02,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 12:21:02,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2851 transitions. [2022-01-10 12:21:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-01-10 12:21:02,080 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:02,080 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:02,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:21:02,081 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:02,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1187654299, now seen corresponding path program 1 times [2022-01-10 12:21:02,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:02,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495305058] [2022-01-10 12:21:02,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:02,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:02,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:02,154 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 12:21:02,155 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:02,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495305058] [2022-01-10 12:21:02,155 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495305058] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:02,155 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:02,155 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:02,155 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142727793] [2022-01-10 12:21:02,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:02,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:02,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:02,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:02,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:02,156 INFO L87 Difference]: Start difference. First operand 1698 states and 2851 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 12:21:02,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:02,428 INFO L93 Difference]: Finished difference Result 4971 states and 8382 transitions. [2022-01-10 12:21:02,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:21:02,429 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 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 116 [2022-01-10 12:21:02,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:02,440 INFO L225 Difference]: With dead ends: 4971 [2022-01-10 12:21:02,440 INFO L226 Difference]: Without dead ends: 3310 [2022-01-10 12:21:02,443 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 12:21:02,444 INFO L933 BasicCegarLoop]: 3177 mSDtfsCounter, 4848 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4848 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:02,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4848 Valid, 4767 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:21:02,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3310 states. [2022-01-10 12:21:02,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3310 to 1698. [2022-01-10 12:21:02,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1698 states, 1694 states have (on average 1.6818181818181819) internal successors, (2849), 1697 states have internal predecessors, (2849), 0 states have call successors, (0), 0 states 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 12:21:02,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1698 states to 1698 states and 2849 transitions. [2022-01-10 12:21:02,568 INFO L78 Accepts]: Start accepts. Automaton has 1698 states and 2849 transitions. Word has length 116 [2022-01-10 12:21:02,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:02,568 INFO L470 AbstractCegarLoop]: Abstraction has 1698 states and 2849 transitions. [2022-01-10 12:21:02,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 0 states have call successors, (0), 0 states 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 12:21:02,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1698 states and 2849 transitions. [2022-01-10 12:21:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:21:02,570 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:02,570 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:02,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:21:02,571 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:02,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:02,571 INFO L85 PathProgramCache]: Analyzing trace with hash 380084415, now seen corresponding path program 1 times [2022-01-10 12:21:02,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:02,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984247234] [2022-01-10 12:21:02,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:02,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:02,667 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 12:21:02,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984247234] [2022-01-10 12:21:02,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984247234] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:02,667 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:02,667 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:02,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049274861] [2022-01-10 12:21:02,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:02,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:02,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:02,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:02,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:02,668 INFO L87 Difference]: Start difference. First operand 1698 states and 2849 transitions. Second operand has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 12:21:03,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:03,015 INFO L93 Difference]: Finished difference Result 4824 states and 8019 transitions. [2022-01-10 12:21:03,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:03,015 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-10 12:21:03,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:03,023 INFO L225 Difference]: With dead ends: 4824 [2022-01-10 12:21:03,024 INFO L226 Difference]: Without dead ends: 4006 [2022-01-10 12:21:03,025 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 12:21:03,026 INFO L933 BasicCegarLoop]: 1706 mSDtfsCounter, 3287 mSDsluCounter, 5014 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3287 SdHoareTripleChecker+Valid, 6720 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 12:21:03,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3287 Valid, 6720 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:21:03,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4006 states. [2022-01-10 12:21:03,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4006 to 3110. [2022-01-10 12:21:03,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3110 states, 3106 states have (on average 1.6886670959433354) internal successors, (5245), 3109 states have internal predecessors, (5245), 0 states have call successors, (0), 0 states 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 12:21:03,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3110 states to 3110 states and 5245 transitions. [2022-01-10 12:21:03,200 INFO L78 Accepts]: Start accepts. Automaton has 3110 states and 5245 transitions. Word has length 117 [2022-01-10 12:21:03,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:03,200 INFO L470 AbstractCegarLoop]: Abstraction has 3110 states and 5245 transitions. [2022-01-10 12:21:03,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.4) internal successors, (117), 4 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 12:21:03,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3110 states and 5245 transitions. [2022-01-10 12:21:03,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-01-10 12:21:03,205 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:03,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:03,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:21:03,205 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:03,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:03,206 INFO L85 PathProgramCache]: Analyzing trace with hash 2034972743, now seen corresponding path program 1 times [2022-01-10 12:21:03,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:03,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960923913] [2022-01-10 12:21:03,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:03,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:03,349 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 12:21:03,349 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:03,349 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960923913] [2022-01-10 12:21:03,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960923913] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:03,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:03,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 12:21:03,350 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274168178] [2022-01-10 12:21:03,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:03,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:21:03,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:03,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:21:03,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:21:03,351 INFO L87 Difference]: Start difference. First operand 3110 states and 5245 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 12:21:05,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:05,198 INFO L93 Difference]: Finished difference Result 15174 states and 24545 transitions. [2022-01-10 12:21:05,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 12:21:05,199 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 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 117 [2022-01-10 12:21:05,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:05,222 INFO L225 Difference]: With dead ends: 15174 [2022-01-10 12:21:05,222 INFO L226 Difference]: Without dead ends: 13476 [2022-01-10 12:21:05,226 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 12:21:05,227 INFO L933 BasicCegarLoop]: 2421 mSDtfsCounter, 12431 mSDsluCounter, 14135 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12431 SdHoareTripleChecker+Valid, 16556 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:05,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12431 Valid, 16556 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 12:21:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13476 states. [2022-01-10 12:21:05,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13476 to 6129. [2022-01-10 12:21:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 6125 states have (on average 1.6904489795918367) internal successors, (10354), 6128 states have internal predecessors, (10354), 0 states have call successors, (0), 0 states 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 12:21:05,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 10354 transitions. [2022-01-10 12:21:05,699 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 10354 transitions. Word has length 117 [2022-01-10 12:21:05,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:05,700 INFO L470 AbstractCegarLoop]: Abstraction has 6129 states and 10354 transitions. [2022-01-10 12:21:05,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 8 states have internal predecessors, (117), 0 states have call successors, (0), 0 states 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 12:21:05,700 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 10354 transitions. [2022-01-10 12:21:05,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:21:05,708 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:05,708 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:05,708 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 12:21:05,708 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:05,708 INFO L85 PathProgramCache]: Analyzing trace with hash -619457668, now seen corresponding path program 1 times [2022-01-10 12:21:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:05,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10440659] [2022-01-10 12:21:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:05,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:05,825 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 12:21:05,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:05,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10440659] [2022-01-10 12:21:05,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10440659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:05,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:05,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:05,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359922289] [2022-01-10 12:21:05,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:05,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:05,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:05,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:05,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:05,831 INFO L87 Difference]: Start difference. First operand 6129 states and 10354 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:06,976 INFO L93 Difference]: Finished difference Result 17461 states and 29066 transitions. [2022-01-10 12:21:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:06,977 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 12:21:06,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:07,005 INFO L225 Difference]: With dead ends: 17461 [2022-01-10 12:21:07,005 INFO L226 Difference]: Without dead ends: 14696 [2022-01-10 12:21:07,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:21:07,013 INFO L933 BasicCegarLoop]: 1910 mSDtfsCounter, 2727 mSDsluCounter, 4860 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2727 SdHoareTripleChecker+Valid, 6770 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:07,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2727 Valid, 6770 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:21:07,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14696 states. [2022-01-10 12:21:07,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14696 to 11787. [2022-01-10 12:21:07,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11783 states have (on average 1.6937961469914282) internal successors, (19958), 11786 states have internal predecessors, (19958), 0 states have call successors, (0), 0 states 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 12:21:07,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 19958 transitions. [2022-01-10 12:21:07,769 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 19958 transitions. Word has length 118 [2022-01-10 12:21:07,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:07,769 INFO L470 AbstractCegarLoop]: Abstraction has 11787 states and 19958 transitions. [2022-01-10 12:21:07,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:07,770 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 19958 transitions. [2022-01-10 12:21:07,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:21:07,783 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:07,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:07,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 12:21:07,784 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:07,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash 102879546, now seen corresponding path program 1 times [2022-01-10 12:21:07,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:07,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788609194] [2022-01-10 12:21:07,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:07,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:07,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:07,847 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 12:21:07,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:07,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788609194] [2022-01-10 12:21:07,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788609194] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:07,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:07,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:07,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923070959] [2022-01-10 12:21:07,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:07,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:21:07,848 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:07,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:21:07,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:21:07,849 INFO L87 Difference]: Start difference. First operand 11787 states and 19958 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:08,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:08,859 INFO L93 Difference]: Finished difference Result 18103 states and 30133 transitions. [2022-01-10 12:21:08,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:21:08,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 12:21:08,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:08,888 INFO L225 Difference]: With dead ends: 18103 [2022-01-10 12:21:08,888 INFO L226 Difference]: Without dead ends: 14416 [2022-01-10 12:21:08,895 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 12:21:08,896 INFO L933 BasicCegarLoop]: 1629 mSDtfsCounter, 2985 mSDsluCounter, 1885 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2985 SdHoareTripleChecker+Valid, 3514 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 12:21:08,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2985 Valid, 3514 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:21:08,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14416 states. [2022-01-10 12:21:09,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14416 to 11787. [2022-01-10 12:21:09,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11787 states, 11783 states have (on average 1.693117202749724) internal successors, (19950), 11786 states have internal predecessors, (19950), 0 states have call successors, (0), 0 states 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 12:21:09,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11787 states to 11787 states and 19950 transitions. [2022-01-10 12:21:09,788 INFO L78 Accepts]: Start accepts. Automaton has 11787 states and 19950 transitions. Word has length 118 [2022-01-10 12:21:09,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:09,788 INFO L470 AbstractCegarLoop]: Abstraction has 11787 states and 19950 transitions. [2022-01-10 12:21:09,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:09,788 INFO L276 IsEmpty]: Start isEmpty. Operand 11787 states and 19950 transitions. [2022-01-10 12:21:09,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-01-10 12:21:09,802 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:09,802 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:09,802 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 12:21:09,803 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:09,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:09,803 INFO L85 PathProgramCache]: Analyzing trace with hash 222999419, now seen corresponding path program 1 times [2022-01-10 12:21:09,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:09,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459313497] [2022-01-10 12:21:09,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:09,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:09,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:09,963 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 12:21:09,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:09,963 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459313497] [2022-01-10 12:21:09,963 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459313497] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:09,963 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:09,963 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:21:09,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668272830] [2022-01-10 12:21:09,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:09,964 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:09,964 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:09,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:09,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:09,965 INFO L87 Difference]: Start difference. First operand 11787 states and 19950 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:14,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:14,154 INFO L93 Difference]: Finished difference Result 50539 states and 82310 transitions. [2022-01-10 12:21:14,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:14,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2022-01-10 12:21:14,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:14,257 INFO L225 Difference]: With dead ends: 50539 [2022-01-10 12:21:14,258 INFO L226 Difference]: Without dead ends: 47364 [2022-01-10 12:21:14,277 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 12:21:14,278 INFO L933 BasicCegarLoop]: 1628 mSDtfsCounter, 9733 mSDsluCounter, 5570 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9733 SdHoareTripleChecker+Valid, 7198 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:14,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9733 Valid, 7198 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:21:14,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47364 states. [2022-01-10 12:21:17,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47364 to 27714. [2022-01-10 12:21:17,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27714 states, 27710 states have (on average 1.647708408516781) internal successors, (45658), 27713 states have internal predecessors, (45658), 0 states have call successors, (0), 0 states 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 12:21:17,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27714 states to 27714 states and 45658 transitions. [2022-01-10 12:21:17,160 INFO L78 Accepts]: Start accepts. Automaton has 27714 states and 45658 transitions. Word has length 118 [2022-01-10 12:21:17,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:17,160 INFO L470 AbstractCegarLoop]: Abstraction has 27714 states and 45658 transitions. [2022-01-10 12:21:17,160 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:17,161 INFO L276 IsEmpty]: Start isEmpty. Operand 27714 states and 45658 transitions. [2022-01-10 12:21:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-01-10 12:21:17,198 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:17,199 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:17,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 12:21:17,199 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:17,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1495641626, now seen corresponding path program 1 times [2022-01-10 12:21:17,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:17,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998094404] [2022-01-10 12:21:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:17,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:17,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:17,290 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 12:21:17,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:17,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998094404] [2022-01-10 12:21:17,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998094404] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:17,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:17,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:21:17,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207561356] [2022-01-10 12:21:17,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:17,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:21:17,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:17,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:21:17,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:21:17,293 INFO L87 Difference]: Start difference. First operand 27714 states and 45658 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:24,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:24,754 INFO L93 Difference]: Finished difference Result 92050 states and 148796 transitions. [2022-01-10 12:21:24,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-10 12:21:24,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 119 [2022-01-10 12:21:24,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:24,922 INFO L225 Difference]: With dead ends: 92050 [2022-01-10 12:21:24,922 INFO L226 Difference]: Without dead ends: 77860 [2022-01-10 12:21:24,960 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-01-10 12:21:24,960 INFO L933 BasicCegarLoop]: 1839 mSDtfsCounter, 7756 mSDsluCounter, 5693 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7756 SdHoareTripleChecker+Valid, 7532 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:24,961 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7756 Valid, 7532 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 12:21:25,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77860 states. [2022-01-10 12:21:28,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77860 to 28706. [2022-01-10 12:21:28,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28706 states, 28702 states have (on average 1.6402341300257821) internal successors, (47078), 28705 states have internal predecessors, (47078), 0 states have call successors, (0), 0 states 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 12:21:28,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28706 states to 28706 states and 47078 transitions. [2022-01-10 12:21:28,390 INFO L78 Accepts]: Start accepts. Automaton has 28706 states and 47078 transitions. Word has length 119 [2022-01-10 12:21:28,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:28,391 INFO L470 AbstractCegarLoop]: Abstraction has 28706 states and 47078 transitions. [2022-01-10 12:21:28,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 12:21:28,391 INFO L276 IsEmpty]: Start isEmpty. Operand 28706 states and 47078 transitions. [2022-01-10 12:21:28,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:21:28,422 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:28,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:28,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 12:21:28,424 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:28,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash -832710012, now seen corresponding path program 1 times [2022-01-10 12:21:28,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:28,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545831021] [2022-01-10 12:21:28,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:28,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:28,516 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 12:21:28,516 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:28,516 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545831021] [2022-01-10 12:21:28,516 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545831021] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:28,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:28,517 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 12:21:28,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773020249] [2022-01-10 12:21:28,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:28,517 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 12:21:28,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 12:21:28,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 12:21:28,518 INFO L87 Difference]: Start difference. First operand 28706 states and 47078 transitions. Second operand has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 12:21:35,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:35,972 INFO L93 Difference]: Finished difference Result 95766 states and 155697 transitions. [2022-01-10 12:21:35,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:21:35,976 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 12:21:35,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:36,110 INFO L225 Difference]: With dead ends: 95766 [2022-01-10 12:21:36,110 INFO L226 Difference]: Without dead ends: 71424 [2022-01-10 12:21:36,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-01-10 12:21:36,150 INFO L933 BasicCegarLoop]: 1558 mSDtfsCounter, 5772 mSDsluCounter, 6248 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5772 SdHoareTripleChecker+Valid, 7806 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:36,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5772 Valid, 7806 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:21:36,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71424 states. [2022-01-10 12:21:39,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71424 to 31456. [2022-01-10 12:21:39,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 31452 states have (on average 1.6451100089024546) internal successors, (51742), 31455 states have internal predecessors, (51742), 0 states have call successors, (0), 0 states 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 12:21:39,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 51742 transitions. [2022-01-10 12:21:39,692 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 51742 transitions. Word has length 120 [2022-01-10 12:21:39,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:39,692 INFO L470 AbstractCegarLoop]: Abstraction has 31456 states and 51742 transitions. [2022-01-10 12:21:39,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.0) internal successors, (120), 6 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 12:21:39,692 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 51742 transitions. [2022-01-10 12:21:39,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-01-10 12:21:39,713 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:39,713 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:39,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 12:21:39,714 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:39,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:39,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1999406331, now seen corresponding path program 1 times [2022-01-10 12:21:39,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:39,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766013117] [2022-01-10 12:21:39,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:39,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:39,801 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 12:21:39,801 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:39,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766013117] [2022-01-10 12:21:39,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766013117] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:39,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:39,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:21:39,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099676870] [2022-01-10 12:21:39,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:39,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:21:39,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:39,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:21:39,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:21:39,802 INFO L87 Difference]: Start difference. First operand 31456 states and 51742 transitions. Second operand has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 12:21:49,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:21:49,110 INFO L93 Difference]: Finished difference Result 104384 states and 169582 transitions. [2022-01-10 12:21:49,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 12:21:49,110 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2022-01-10 12:21:49,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:21:49,255 INFO L225 Difference]: With dead ends: 104384 [2022-01-10 12:21:49,255 INFO L226 Difference]: Without dead ends: 88812 [2022-01-10 12:21:49,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 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 12:21:49,290 INFO L933 BasicCegarLoop]: 1868 mSDtfsCounter, 6122 mSDsluCounter, 4409 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6122 SdHoareTripleChecker+Valid, 6277 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 12:21:49,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6122 Valid, 6277 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 12:21:49,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88812 states. [2022-01-10 12:21:53,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88812 to 31456. [2022-01-10 12:21:53,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31456 states, 31452 states have (on average 1.6450464199414983) internal successors, (51740), 31455 states have internal predecessors, (51740), 0 states have call successors, (0), 0 states 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 12:21:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31456 states to 31456 states and 51740 transitions. [2022-01-10 12:21:53,156 INFO L78 Accepts]: Start accepts. Automaton has 31456 states and 51740 transitions. Word has length 120 [2022-01-10 12:21:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:21:53,156 INFO L470 AbstractCegarLoop]: Abstraction has 31456 states and 51740 transitions. [2022-01-10 12:21:53,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.0) internal successors, (120), 5 states have internal predecessors, (120), 0 states have call successors, (0), 0 states 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 12:21:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 31456 states and 51740 transitions. [2022-01-10 12:21:53,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-01-10 12:21:53,195 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:21:53,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:21:53,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 12:21:53,197 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:21:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:21:53,198 INFO L85 PathProgramCache]: Analyzing trace with hash 2146068754, now seen corresponding path program 1 times [2022-01-10 12:21:53,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:21:53,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804513428] [2022-01-10 12:21:53,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:21:53,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:21:53,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:21:53,303 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 12:21:53,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:21:53,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804513428] [2022-01-10 12:21:53,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804513428] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:21:53,303 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:21:53,303 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:21:53,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097413463] [2022-01-10 12:21:53,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:21:53,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:21:53,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:21:53,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:21:53,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:21:53,304 INFO L87 Difference]: Start difference. First operand 31456 states and 51740 transitions. Second operand has 7 states, 7 states have (on average 17.285714285714285) internal successors, (121), 7 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)