/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:51:46,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:51:46,454 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:51:46,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:51:46,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:51:46,493 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:51:46,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:51:46,496 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:51:46,497 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:51:46,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:51:46,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:51:46,504 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:51:46,504 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:51:46,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:51:46,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:51:46,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:51:46,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:51:46,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:51:46,510 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:51:46,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:51:46,512 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:51:46,538 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:51:46,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:51:46,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:51:46,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:51:46,542 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:51:46,542 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:51:46,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:51:46,543 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:51:46,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:51:46,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:51:46,544 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:51:46,545 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:51:46,545 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:51:46,546 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:51:46,546 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:51:46,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:51:46,547 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:51:46,547 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:51:46,547 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:51:46,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:51:46,548 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:51:46,566 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:51:46,566 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:51:46,566 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:51:46,566 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:51:46,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:51:46,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:51:46,567 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:51:46,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:51:46,568 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:51:46,569 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:51:46,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:51:46,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:51:46,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:51:46,571 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:51:46,571 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:51:46,571 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:51:46,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:51:46,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:51:46,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:51:46,772 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:51:46,772 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:51:46,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec11_product39.cil.c [2022-01-10 23:51:46,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b577540e2/59beb9943ddb48879c5354739112f590/FLAGf8bbf7cae [2022-01-10 23:51:47,360 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:51:47,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product39.cil.c [2022-01-10 23:51:47,373 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b577540e2/59beb9943ddb48879c5354739112f590/FLAGf8bbf7cae [2022-01-10 23:51:47,796 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b577540e2/59beb9943ddb48879c5354739112f590 [2022-01-10 23:51:47,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:51:47,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:51:47,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:51:47,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:51:47,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:51:47,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:51:47" (1/1) ... [2022-01-10 23:51:47,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1b271 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:47, skipping insertion in model container [2022-01-10 23:51:47,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:51:47" (1/1) ... [2022-01-10 23:51:47,816 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:51:47,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:51:48,196 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_spec11_product39.cil.c[17959,17972] [2022-01-10 23:51:48,307 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:48,323 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:51:48,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:51:48,371 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_spec11_product39.cil.c[17959,17972] [2022-01-10 23:51:48,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:48,433 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:51:48,484 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_spec11_product39.cil.c[17959,17972] [2022-01-10 23:51:48,544 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:51:48,569 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:51:48,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48 WrapperNode [2022-01-10 23:51:48,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:51:48,571 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:51:48,571 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:51:48,571 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:51:48,577 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,625 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,702 INFO L137 Inliner]: procedures = 126, calls = 195, calls flagged for inlining = 107, calls inlined = 186, statements flattened = 2567 [2022-01-10 23:51:48,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:51:48,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:51:48,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:51:48,703 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:51:48,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,769 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:51:48,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:51:48,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:51:48,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:51:48,824 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (1/1) ... [2022-01-10 23:51:48,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:51:48,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:51:48,852 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 23:51:48,878 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 23:51:48,892 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:51:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:51:48,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:51:48,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:51:48,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:51:49,126 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:51:49,128 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:51:50,368 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:51:50,391 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:51:50,391 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:51:50,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:50 BoogieIcfgContainer [2022-01-10 23:51:50,394 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:51:50,395 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:51:50,395 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:51:50,396 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:51:50,399 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:50" (1/1) ... [2022-01-10 23:51:50,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:51:50 BasicIcfg [2022-01-10 23:51:50,725 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:51:50,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:51:50,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:51:50,729 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:51:50,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:51:47" (1/4) ... [2022-01-10 23:51:50,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc54d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:51:50, skipping insertion in model container [2022-01-10 23:51:50,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:51:48" (2/4) ... [2022-01-10 23:51:50,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc54d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:51:50, skipping insertion in model container [2022-01-10 23:51:50,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:51:50" (3/4) ... [2022-01-10 23:51:50,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc54d78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:51:50, skipping insertion in model container [2022-01-10 23:51:50,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:51:50" (4/4) ... [2022-01-10 23:51:50,731 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.cTransformedIcfg [2022-01-10 23:51:50,736 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:51:50,736 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 23:51:50,789 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:51:50,794 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 23:51:50,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 23:51:50,823 INFO L276 IsEmpty]: Start isEmpty. Operand has 610 states, 603 states have (on average 1.6849087893864014) internal successors, (1016), 609 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:50,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 23:51:50,840 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:50,841 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] [2022-01-10 23:51:50,841 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:50,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1345833362, now seen corresponding path program 1 times [2022-01-10 23:51:50,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:50,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871559568] [2022-01-10 23:51:50,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:50,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:51,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:51,272 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 23:51:51,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:51,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871559568] [2022-01-10 23:51:51,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871559568] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:51,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:51,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:51:51,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30812152] [2022-01-10 23:51:51,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:51,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:51:51,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:51,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:51:51,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:51:51,317 INFO L87 Difference]: Start difference. First operand has 610 states, 603 states have (on average 1.6849087893864014) internal successors, (1016), 609 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 23:51:51,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:51,393 INFO L93 Difference]: Finished difference Result 911 states and 1485 transitions. [2022-01-10 23:51:51,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:51:51,396 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 49 [2022-01-10 23:51:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:51,412 INFO L225 Difference]: With dead ends: 911 [2022-01-10 23:51:51,413 INFO L226 Difference]: Without dead ends: 573 [2022-01-10 23:51:51,416 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 23:51:51,419 INFO L933 BasicCegarLoop]: 1002 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, 1002 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 23:51:51,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:51,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-01-10 23:51:51,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-01-10 23:51:51,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 567 states have (on average 1.689594356261023) internal successors, (958), 572 states have internal predecessors, (958), 0 states have call successors, (0), 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 23:51:51,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 958 transitions. [2022-01-10 23:51:51,494 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 958 transitions. Word has length 49 [2022-01-10 23:51:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:51,495 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 958 transitions. [2022-01-10 23:51:51,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 0 states have call successors, (0), 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 23:51:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 958 transitions. [2022-01-10 23:51:51,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 23:51:51,502 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:51,502 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] [2022-01-10 23:51:51,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:51:51,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:51,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:51,505 INFO L85 PathProgramCache]: Analyzing trace with hash 226710004, now seen corresponding path program 1 times [2022-01-10 23:51:51,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:51,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376870156] [2022-01-10 23:51:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:51,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:51,764 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 23:51:51,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:51,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376870156] [2022-01-10 23:51:51,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376870156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:51,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:51,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:51:51,765 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175470309] [2022-01-10 23:51:51,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:51,766 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:51:51,766 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:51,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:51:51,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:51,767 INFO L87 Difference]: Start difference. First operand 573 states and 958 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 23:51:51,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:51,865 INFO L93 Difference]: Finished difference Result 1127 states and 1888 transitions. [2022-01-10 23:51:51,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:51:51,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2022-01-10 23:51:51,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:51,870 INFO L225 Difference]: With dead ends: 1127 [2022-01-10 23:51:51,871 INFO L226 Difference]: Without dead ends: 573 [2022-01-10 23:51:51,875 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 23:51:51,877 INFO L933 BasicCegarLoop]: 937 mSDtfsCounter, 933 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:51,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 950 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-01-10 23:51:51,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-01-10 23:51:51,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 567 states have (on average 1.6860670194003526) internal successors, (956), 572 states have internal predecessors, (956), 0 states have call successors, (0), 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 23:51:51,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 956 transitions. [2022-01-10 23:51:51,918 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 956 transitions. Word has length 50 [2022-01-10 23:51:51,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:51,919 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 956 transitions. [2022-01-10 23:51:51,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 23:51:51,921 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 956 transitions. [2022-01-10 23:51:51,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:51:51,928 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:51,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:51,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:51:51,929 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:51,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:51,929 INFO L85 PathProgramCache]: Analyzing trace with hash 14090356, now seen corresponding path program 1 times [2022-01-10 23:51:51,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:51,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243864622] [2022-01-10 23:51:51,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:51,930 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:52,068 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 23:51:52,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:52,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243864622] [2022-01-10 23:51:52,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243864622] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:52,070 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:52,070 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:52,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739129154] [2022-01-10 23:51:52,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:52,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:52,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:52,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:52,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:52,073 INFO L87 Difference]: Start difference. First operand 573 states and 956 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:52,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:52,354 INFO L93 Difference]: Finished difference Result 2733 states and 4576 transitions. [2022-01-10 23:51:52,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:51:52,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:51:52,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:52,365 INFO L225 Difference]: With dead ends: 2733 [2022-01-10 23:51:52,365 INFO L226 Difference]: Without dead ends: 2184 [2022-01-10 23:51:52,369 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 23:51:52,372 INFO L933 BasicCegarLoop]: 1835 mSDtfsCounter, 4563 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4563 SdHoareTripleChecker+Valid, 4575 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 23:51:52,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4563 Valid, 4575 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:52,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-01-10 23:51:52,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 573. [2022-01-10 23:51:52,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 567 states have (on average 1.6843033509700176) internal successors, (955), 572 states have internal predecessors, (955), 0 states have call successors, (0), 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 23:51:52,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 955 transitions. [2022-01-10 23:51:52,418 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 955 transitions. Word has length 52 [2022-01-10 23:51:52,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:52,419 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 955 transitions. [2022-01-10 23:51:52,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:52,419 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 955 transitions. [2022-01-10 23:51:52,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 23:51:52,421 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:52,421 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] [2022-01-10 23:51:52,421 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:51:52,421 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:52,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:52,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1343908884, now seen corresponding path program 1 times [2022-01-10 23:51:52,422 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:52,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828614392] [2022-01-10 23:51:52,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:52,423 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:52,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:52,548 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 23:51:52,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:52,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828614392] [2022-01-10 23:51:52,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828614392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:52,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:52,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:51:52,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341810988] [2022-01-10 23:51:52,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:52,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:51:52,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:52,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:51:52,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:51:52,552 INFO L87 Difference]: Start difference. First operand 573 states and 955 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 23:51:52,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:52,612 INFO L93 Difference]: Finished difference Result 1131 states and 1888 transitions. [2022-01-10 23:51:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:51:52,612 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 53 [2022-01-10 23:51:52,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:52,615 INFO L225 Difference]: With dead ends: 1131 [2022-01-10 23:51:52,615 INFO L226 Difference]: Without dead ends: 587 [2022-01-10 23:51:52,616 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 23:51:52,623 INFO L933 BasicCegarLoop]: 969 mSDtfsCounter, 934 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 991 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 23:51:52,624 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 991 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:52,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-01-10 23:51:52,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2022-01-10 23:51:52,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 567 states have (on average 1.6825396825396826) internal successors, (954), 572 states have internal predecessors, (954), 0 states have call successors, (0), 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 23:51:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 954 transitions. [2022-01-10 23:51:52,657 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 954 transitions. Word has length 53 [2022-01-10 23:51:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:52,659 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 954 transitions. [2022-01-10 23:51:52,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 0 states have call successors, (0), 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 23:51:52,659 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 954 transitions. [2022-01-10 23:51:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 23:51:52,661 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:52,661 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:52,661 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:51:52,661 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:52,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash -1780242701, now seen corresponding path program 1 times [2022-01-10 23:51:52,662 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:52,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100455668] [2022-01-10 23:51:52,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:52,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:52,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:52,750 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 23:51:52,750 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:52,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100455668] [2022-01-10 23:51:52,750 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1100455668] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:52,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:52,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:51:52,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201437962] [2022-01-10 23:51:52,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:52,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:52,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:52,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:52,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:52,752 INFO L87 Difference]: Start difference. First operand 573 states and 954 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:52,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:52,971 INFO L93 Difference]: Finished difference Result 1653 states and 2762 transitions. [2022-01-10 23:51:52,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:51:52,972 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2022-01-10 23:51:52,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:52,976 INFO L225 Difference]: With dead ends: 1653 [2022-01-10 23:51:52,977 INFO L226 Difference]: Without dead ends: 1114 [2022-01-10 23:51:52,978 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 23:51:52,978 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 4486 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4486 SdHoareTripleChecker+Valid, 1940 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 23:51:52,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4486 Valid, 1940 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:52,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-01-10 23:51:53,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 573. [2022-01-10 23:51:53,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 573 states, 567 states have (on average 1.6790123456790123) internal successors, (952), 572 states have internal predecessors, (952), 0 states have call successors, (0), 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 23:51:53,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 952 transitions. [2022-01-10 23:51:53,033 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 952 transitions. Word has length 54 [2022-01-10 23:51:53,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:53,034 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 952 transitions. [2022-01-10 23:51:53,034 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:53,034 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 952 transitions. [2022-01-10 23:51:53,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 23:51:53,035 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:53,035 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 23:51:53,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:51:53,036 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:53,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:53,036 INFO L85 PathProgramCache]: Analyzing trace with hash 584857654, now seen corresponding path program 1 times [2022-01-10 23:51:53,036 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:53,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886586445] [2022-01-10 23:51:53,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:53,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:53,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:53,201 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 23:51:53,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:53,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886586445] [2022-01-10 23:51:53,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886586445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:53,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:53,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:51:53,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757611152] [2022-01-10 23:51:53,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:53,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:51:53,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:53,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:51:53,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:51:53,203 INFO L87 Difference]: Start difference. First operand 573 states and 952 transitions. Second operand has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 23:51:54,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:54,171 INFO L93 Difference]: Finished difference Result 2229 states and 3497 transitions. [2022-01-10 23:51:54,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 23:51:54,171 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 23:51:54,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:54,179 INFO L225 Difference]: With dead ends: 2229 [2022-01-10 23:51:54,179 INFO L226 Difference]: Without dead ends: 2022 [2022-01-10 23:51:54,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=277, Invalid=653, Unknown=0, NotChecked=0, Total=930 [2022-01-10 23:51:54,181 INFO L933 BasicCegarLoop]: 1344 mSDtfsCounter, 5555 mSDsluCounter, 7451 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5555 SdHoareTripleChecker+Valid, 8795 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:54,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5555 Valid, 8795 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 23:51:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-01-10 23:51:54,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 827. [2022-01-10 23:51:54,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 827 states, 821 states have (on average 1.6443361753958587) internal successors, (1350), 826 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:54,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1350 transitions. [2022-01-10 23:51:54,251 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1350 transitions. Word has length 56 [2022-01-10 23:51:54,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:54,252 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1350 transitions. [2022-01-10 23:51:54,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.222222222222222) internal successors, (56), 9 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 23:51:54,252 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1350 transitions. [2022-01-10 23:51:54,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:51:54,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:54,253 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] [2022-01-10 23:51:54,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:51:54,253 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:54,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:54,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1827886534, now seen corresponding path program 1 times [2022-01-10 23:51:54,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:54,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479420241] [2022-01-10 23:51:54,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:54,254 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:54,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:54,394 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 23:51:54,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:54,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479420241] [2022-01-10 23:51:54,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479420241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:54,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:54,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:54,395 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079803492] [2022-01-10 23:51:54,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:54,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:54,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:54,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:54,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:54,396 INFO L87 Difference]: Start difference. First operand 827 states and 1350 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:54,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:54,734 INFO L93 Difference]: Finished difference Result 2735 states and 4433 transitions. [2022-01-10 23:51:54,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:51:54,734 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-10 23:51:54,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:54,744 INFO L225 Difference]: With dead ends: 2735 [2022-01-10 23:51:54,744 INFO L226 Difference]: Without dead ends: 2343 [2022-01-10 23:51:54,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 23:51:54,745 INFO L933 BasicCegarLoop]: 1051 mSDtfsCounter, 1851 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 3791 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:54,746 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1851 Valid, 3791 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:54,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2022-01-10 23:51:54,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 1611. [2022-01-10 23:51:54,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1605 states have (on average 1.649221183800623) internal successors, (2647), 1610 states have internal predecessors, (2647), 0 states have call successors, (0), 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 23:51:54,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2647 transitions. [2022-01-10 23:51:54,880 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2647 transitions. Word has length 57 [2022-01-10 23:51:54,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:54,881 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2647 transitions. [2022-01-10 23:51:54,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:54,881 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2647 transitions. [2022-01-10 23:51:54,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:51:54,882 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:54,882 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] [2022-01-10 23:51:54,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:51:54,883 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:54,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:54,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1507289278, now seen corresponding path program 1 times [2022-01-10 23:51:54,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:54,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199249337] [2022-01-10 23:51:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:54,884 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:54,985 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 23:51:54,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:54,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199249337] [2022-01-10 23:51:54,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199249337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:54,986 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:54,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 23:51:54,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670928338] [2022-01-10 23:51:54,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:54,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 23:51:54,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:54,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 23:51:54,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:51:54,987 INFO L87 Difference]: Start difference. First operand 1611 states and 2647 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:55,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:55,312 INFO L93 Difference]: Finished difference Result 2865 states and 4622 transitions. [2022-01-10 23:51:55,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 23:51:55,312 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-10 23:51:55,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:55,319 INFO L225 Difference]: With dead ends: 2865 [2022-01-10 23:51:55,319 INFO L226 Difference]: Without dead ends: 1919 [2022-01-10 23:51:55,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2022-01-10 23:51:55,321 INFO L933 BasicCegarLoop]: 920 mSDtfsCounter, 1918 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 4118 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:55,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 4118 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:55,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2022-01-10 23:51:55,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1611. [2022-01-10 23:51:55,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1611 states, 1605 states have (on average 1.639252336448598) internal successors, (2631), 1610 states have internal predecessors, (2631), 0 states have call successors, (0), 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 23:51:55,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2631 transitions. [2022-01-10 23:51:55,466 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2631 transitions. Word has length 57 [2022-01-10 23:51:55,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:55,466 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2631 transitions. [2022-01-10 23:51:55,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:55,466 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2631 transitions. [2022-01-10 23:51:55,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 23:51:55,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:55,468 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] [2022-01-10 23:51:55,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:51:55,468 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:55,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:55,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1703802783, now seen corresponding path program 1 times [2022-01-10 23:51:55,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:55,469 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651201677] [2022-01-10 23:51:55,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:55,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:55,564 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 23:51:55,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:55,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651201677] [2022-01-10 23:51:55,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651201677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:55,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:55,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:55,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137843352] [2022-01-10 23:51:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:55,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:51:55,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:51:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:51:55,566 INFO L87 Difference]: Start difference. First operand 1611 states and 2631 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:56,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:56,207 INFO L93 Difference]: Finished difference Result 5403 states and 8745 transitions. [2022-01-10 23:51:56,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:51:56,207 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2022-01-10 23:51:56,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:56,224 INFO L225 Difference]: With dead ends: 5403 [2022-01-10 23:51:56,224 INFO L226 Difference]: Without dead ends: 4637 [2022-01-10 23:51:56,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 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 23:51:56,226 INFO L933 BasicCegarLoop]: 1028 mSDtfsCounter, 1879 mSDsluCounter, 2732 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 3760 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:56,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1879 Valid, 3760 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:51:56,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2022-01-10 23:51:56,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 3029. [2022-01-10 23:51:56,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3029 states, 3023 states have (on average 1.6483625537545485) internal successors, (4983), 3028 states have internal predecessors, (4983), 0 states have call successors, (0), 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 23:51:56,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 4983 transitions. [2022-01-10 23:51:56,512 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 4983 transitions. Word has length 57 [2022-01-10 23:51:56,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:56,512 INFO L470 AbstractCegarLoop]: Abstraction has 3029 states and 4983 transitions. [2022-01-10 23:51:56,512 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 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 23:51:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 4983 transitions. [2022-01-10 23:51:56,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:51:56,514 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:56,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:56,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:51:56,515 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:56,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1385466804, now seen corresponding path program 1 times [2022-01-10 23:51:56,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:56,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701994713] [2022-01-10 23:51:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:56,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:56,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:56,664 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 23:51:56,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:56,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701994713] [2022-01-10 23:51:56,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701994713] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:56,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:56,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 23:51:56,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776851545] [2022-01-10 23:51:56,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:56,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:51:56,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:56,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:51:56,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:51:56,666 INFO L87 Difference]: Start difference. First operand 3029 states and 4983 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:58,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:58,064 INFO L93 Difference]: Finished difference Result 8213 states and 13123 transitions. [2022-01-10 23:51:58,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 23:51:58,064 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:51:58,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:58,091 INFO L225 Difference]: With dead ends: 8213 [2022-01-10 23:51:58,091 INFO L226 Difference]: Without dead ends: 6821 [2022-01-10 23:51:58,094 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=261, Invalid=609, Unknown=0, NotChecked=0, Total=870 [2022-01-10 23:51:58,095 INFO L933 BasicCegarLoop]: 1279 mSDtfsCounter, 5117 mSDsluCounter, 5441 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5117 SdHoareTripleChecker+Valid, 6720 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:58,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5117 Valid, 6720 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 23:51:58,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-01-10 23:51:58,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 3909. [2022-01-10 23:51:58,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3903 states have (on average 1.6154240327952856) internal successors, (6305), 3908 states have internal predecessors, (6305), 0 states have call successors, (0), 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 23:51:58,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 6305 transitions. [2022-01-10 23:51:58,465 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 6305 transitions. Word has length 58 [2022-01-10 23:51:58,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:58,466 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 6305 transitions. [2022-01-10 23:51:58,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:58,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 6305 transitions. [2022-01-10 23:51:58,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 23:51:58,468 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:51:58,468 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:51:58,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:51:58,469 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:51:58,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:51:58,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1356837653, now seen corresponding path program 1 times [2022-01-10 23:51:58,469 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:51:58,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733056645] [2022-01-10 23:51:58,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:51:58,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:51:58,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:51:58,557 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 23:51:58,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:51:58,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733056645] [2022-01-10 23:51:58,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733056645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:51:58,558 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:51:58,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:51:58,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439600430] [2022-01-10 23:51:58,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:51:58,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:51:58,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:51:58,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:51:58,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:51:58,559 INFO L87 Difference]: Start difference. First operand 3909 states and 6305 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:59,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:51:59,135 INFO L93 Difference]: Finished difference Result 5545 states and 8893 transitions. [2022-01-10 23:51:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:51:59,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2022-01-10 23:51:59,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:51:59,136 INFO L225 Difference]: With dead ends: 5545 [2022-01-10 23:51:59,136 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 23:51:59,142 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 23:51:59,142 INFO L933 BasicCegarLoop]: 1157 mSDtfsCounter, 574 mSDsluCounter, 1734 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 2891 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:51:59,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [574 Valid, 2891 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:51:59,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 23:51:59,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 23:51:59,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 23:51:59,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-01-10 23:51:59,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:51:59,144 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 23:51:59,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:51:59,144 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 23:51:59,144 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 23:51:59,146 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-10 23:51:59,146 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-10 23:51:59,147 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-10 23:51:59,147 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-10 23:51:59,147 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-10 23:51:59,147 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-10 23:51:59,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:51:59,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 23:52:09,648 WARN L228 SmtUtils]: Spent 6.65s on a formula simplification that was a NOOP. DAG size: 217 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2022-01-10 23:52:21,323 WARN L228 SmtUtils]: Spent 9.96s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or)