/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec11_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 12:12:00,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 12:12:00,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 12:12:00,890 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 12:12:00,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 12:12:00,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 12:12:00,892 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 12:12:00,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 12:12:00,894 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 12:12:00,895 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 12:12:00,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 12:12:00,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 12:12:00,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 12:12:00,897 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 12:12:00,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 12:12:00,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 12:12:00,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 12:12:00,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 12:12:00,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 12:12:00,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 12:12:00,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 12:12:00,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 12:12:00,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 12:12:00,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 12:12:00,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 12:12:00,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 12:12:00,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 12:12:00,912 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 12:12:00,912 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 12:12:00,913 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 12:12:00,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 12:12:00,913 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 12:12:00,914 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 12:12:00,914 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 12:12:00,915 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 12:12:00,915 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 12:12:00,915 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 12:12:00,916 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 12:12:00,916 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 12:12:00,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 12:12:00,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 12:12:00,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_BITWISE.epf [2022-01-10 12:12:00,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 12:12:00,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 12:12:00,936 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 12:12:00,936 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 12:12:00,937 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 12:12:00,937 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 12:12:00,937 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 12:12:00,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 12:12:00,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 12:12:00,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:00,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 12:12:00,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 12:12:00,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 12:12:00,940 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 12:12:00,940 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_BITWISE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 12:12:01,100 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 12:12:01,132 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 12:12:01,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 12:12:01,135 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 12:12:01,142 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 12:12:01,144 INFO L432 ainManager$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 12:12:01,184 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76fb8693/16acad37e2ed4790a292f3407d91d307/FLAG4725be76d [2022-01-10 12:12:01,574 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 12:12:01,575 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec11_product39.cil.c [2022-01-10 12:12:01,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76fb8693/16acad37e2ed4790a292f3407d91d307/FLAG4725be76d [2022-01-10 12:12:01,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d76fb8693/16acad37e2ed4790a292f3407d91d307 [2022-01-10 12:12:01,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 12:12:01,935 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 12:12:01,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:01,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 12:12:01,953 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 12:12:01,958 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:01" (1/1) ... [2022-01-10 12:12:01,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30c70300 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:01, skipping insertion in model container [2022-01-10 12:12:01,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 12:12:01" (1/1) ... [2022-01-10 12:12:01,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 12:12:02,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:02,326 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 12:12:02,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:02,468 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 12:12:02,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 12:12:02,518 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 12:12:02,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:02,573 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 12:12:02,598 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 12:12:02,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 12:12:02,649 INFO L208 MainTranslator]: Completed translation [2022-01-10 12:12:02,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02 WrapperNode [2022-01-10 12:12:02,649 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 12:12:02,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:02,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 12:12:02,650 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 12:12:02,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,698 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,794 INFO L137 Inliner]: procedures = 126, calls = 195, calls flagged for inlining = 107, calls inlined = 186, statements flattened = 2567 [2022-01-10 12:12:02,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 12:12:02,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 12:12:02,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 12:12:02,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 12:12:02,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,874 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,892 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 12:12:02,893 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 12:12:02,894 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 12:12:02,894 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 12:12:02,895 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (1/1) ... [2022-01-10 12:12:02,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 12:12:02,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 12:12:02,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 12:12:02,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 12:12:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 12:12:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 12:12:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 12:12:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 12:12:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 12:12:03,149 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 12:12:03,150 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 12:12:04,224 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 12:12:04,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 12:12:04,233 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 12:12:04,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:04 BoogieIcfgContainer [2022-01-10 12:12:04,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 12:12:04,235 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 12:12:04,235 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 12:12:04,237 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 12:12:04,239 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:04" (1/1) ... [2022-01-10 12:12:04,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:04 BasicIcfg [2022-01-10 12:12:04,537 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 12:12:04,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 12:12:04,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 12:12:04,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 12:12:04,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 12:12:01" (1/4) ... [2022-01-10 12:12:04,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41be9397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:04, skipping insertion in model container [2022-01-10 12:12:04,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 12:12:02" (2/4) ... [2022-01-10 12:12:04,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41be9397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 12:12:04, skipping insertion in model container [2022-01-10 12:12:04,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 12:12:04" (3/4) ... [2022-01-10 12:12:04,542 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41be9397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 12:12:04, skipping insertion in model container [2022-01-10 12:12:04,542 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 12:12:04" (4/4) ... [2022-01-10 12:12:04,542 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec11_product39.cil.cTransformedIcfg [2022-01-10 12:12:04,546 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 12:12:04,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 12:12:04,588 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 12:12:04,593 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 12:12:04,593 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 12:12:04,614 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 12:12:04,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-10 12:12:04,622 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:04,622 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 12:12:04,623 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:04,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1345833362, now seen corresponding path program 1 times [2022-01-10 12:12:04,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:04,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925813805] [2022-01-10 12:12:04,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:04,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:04,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:04,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:04,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925813805] [2022-01-10 12:12:04,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925813805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:04,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:04,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 12:12:04,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658375193] [2022-01-10 12:12:04,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:04,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 12:12:04,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:04,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 12:12:04,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:12:04,995 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 12:12:05,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:05,045 INFO L93 Difference]: Finished difference Result 911 states and 1485 transitions. [2022-01-10 12:12:05,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 12:12:05,047 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 12:12:05,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:05,057 INFO L225 Difference]: With dead ends: 911 [2022-01-10 12:12:05,057 INFO L226 Difference]: Without dead ends: 573 [2022-01-10 12:12:05,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 12:12:05,063 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 12:12:05,063 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 12:12:05,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-01-10 12:12:05,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-01-10 12:12:05,122 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 12:12:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 958 transitions. [2022-01-10 12:12:05,125 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 958 transitions. Word has length 49 [2022-01-10 12:12:05,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:05,125 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 958 transitions. [2022-01-10 12:12:05,125 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 12:12:05,125 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 958 transitions. [2022-01-10 12:12:05,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-01-10 12:12:05,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:05,128 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 12:12:05,128 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 12:12:05,128 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 12:12:05,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:05,129 INFO L85 PathProgramCache]: Analyzing trace with hash 226710004, now seen corresponding path program 1 times [2022-01-10 12:12:05,129 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:05,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59272377] [2022-01-10 12:12:05,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:05,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:05,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:05,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:05,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:05,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59272377] [2022-01-10 12:12:05,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59272377] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:05,330 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:05,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:05,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826326878] [2022-01-10 12:12:05,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:05,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:05,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:05,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:05,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:05,332 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 12:12:05,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:05,412 INFO L93 Difference]: Finished difference Result 1127 states and 1888 transitions. [2022-01-10 12:12:05,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:05,412 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 12:12:05,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:05,415 INFO L225 Difference]: With dead ends: 1127 [2022-01-10 12:12:05,415 INFO L226 Difference]: Without dead ends: 573 [2022-01-10 12:12:05,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:05,417 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, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:05,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [933 Valid, 950 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 12:12:05,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2022-01-10 12:12:05,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 573. [2022-01-10 12:12:05,446 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 12:12:05,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 956 transitions. [2022-01-10 12:12:05,447 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 956 transitions. Word has length 50 [2022-01-10 12:12:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:05,447 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 956 transitions. [2022-01-10 12:12:05,448 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 12:12:05,448 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 956 transitions. [2022-01-10 12:12:05,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 12:12:05,449 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:05,449 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:05,449 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 12:12:05,450 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 12:12:05,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:05,450 INFO L85 PathProgramCache]: Analyzing trace with hash 14090356, now seen corresponding path program 1 times [2022-01-10 12:12:05,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:05,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054429218] [2022-01-10 12:12:05,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:05,451 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:05,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:05,556 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:05,556 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054429218] [2022-01-10 12:12:05,556 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054429218] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:05,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:05,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:05,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131171687] [2022-01-10 12:12:05,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:05,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:05,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:05,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:05,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:05,558 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 12:12:05,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:05,747 INFO L93 Difference]: Finished difference Result 2733 states and 4576 transitions. [2022-01-10 12:12:05,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:05,748 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 12:12:05,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:05,760 INFO L225 Difference]: With dead ends: 2733 [2022-01-10 12:12:05,761 INFO L226 Difference]: Without dead ends: 2184 [2022-01-10 12:12:05,767 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 12:12:05,769 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 12:12:05,770 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 12:12:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2022-01-10 12:12:05,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 573. [2022-01-10 12:12:05,834 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 12:12:05,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 955 transitions. [2022-01-10 12:12:05,836 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 955 transitions. Word has length 52 [2022-01-10 12:12:05,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:05,836 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 955 transitions. [2022-01-10 12:12:05,836 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 12:12:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 955 transitions. [2022-01-10 12:12:05,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-10 12:12:05,841 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:05,841 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, 1, 1, 1, 1] [2022-01-10 12:12:05,841 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 12:12:05,842 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 12:12:05,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:05,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1343908884, now seen corresponding path program 1 times [2022-01-10 12:12:05,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:05,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237776878] [2022-01-10 12:12:05,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:05,843 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:05,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:05,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:05,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:05,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237776878] [2022-01-10 12:12:05,997 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237776878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:05,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:05,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 12:12:05,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653565734] [2022-01-10 12:12:05,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:05,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 12:12:05,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:05,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 12:12:05,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:05,998 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 12:12:06,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:06,071 INFO L93 Difference]: Finished difference Result 1131 states and 1888 transitions. [2022-01-10 12:12:06,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 12:12:06,071 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 12:12:06,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:06,074 INFO L225 Difference]: With dead ends: 1131 [2022-01-10 12:12:06,074 INFO L226 Difference]: Without dead ends: 587 [2022-01-10 12:12:06,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 12:12:06,083 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 12:12:06,084 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 12:12:06,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 587 states. [2022-01-10 12:12:06,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 587 to 573. [2022-01-10 12:12:06,108 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 12:12:06,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 954 transitions. [2022-01-10 12:12:06,110 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 954 transitions. Word has length 53 [2022-01-10 12:12:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:06,111 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 954 transitions. [2022-01-10 12:12:06,111 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 12:12:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 954 transitions. [2022-01-10 12:12:06,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-01-10 12:12:06,113 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:06,113 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:06,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 12:12:06,113 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 12:12:06,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:06,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1780242701, now seen corresponding path program 1 times [2022-01-10 12:12:06,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:06,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336528230] [2022-01-10 12:12:06,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:06,117 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:06,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:06,206 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:06,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336528230] [2022-01-10 12:12:06,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336528230] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:06,207 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:06,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 12:12:06,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655349293] [2022-01-10 12:12:06,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:06,207 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:06,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:06,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:06,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:06,208 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 12:12:06,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:06,351 INFO L93 Difference]: Finished difference Result 1653 states and 2762 transitions. [2022-01-10 12:12:06,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 12:12:06,352 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 12:12:06,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:06,356 INFO L225 Difference]: With dead ends: 1653 [2022-01-10 12:12:06,356 INFO L226 Difference]: Without dead ends: 1114 [2022-01-10 12:12:06,357 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:06,357 INFO L933 BasicCegarLoop]: 963 mSDtfsCounter, 4486 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 12:12:06,357 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 12:12:06,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2022-01-10 12:12:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 573. [2022-01-10 12:12:06,387 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 12:12:06,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 952 transitions. [2022-01-10 12:12:06,391 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 952 transitions. Word has length 54 [2022-01-10 12:12:06,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:06,396 INFO L470 AbstractCegarLoop]: Abstraction has 573 states and 952 transitions. [2022-01-10 12:12:06,396 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 12:12:06,396 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 952 transitions. [2022-01-10 12:12:06,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-01-10 12:12:06,397 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:06,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 12:12:06,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 12:12:06,397 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 12:12:06,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:06,398 INFO L85 PathProgramCache]: Analyzing trace with hash 584857654, now seen corresponding path program 1 times [2022-01-10 12:12:06,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:06,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34719845] [2022-01-10 12:12:06,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:06,398 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:06,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:06,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:06,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:06,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34719845] [2022-01-10 12:12:06,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34719845] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:06,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:06,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:12:06,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027832058] [2022-01-10 12:12:06,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:06,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:06,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:06,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:06,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:06,578 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 12:12:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:07,520 INFO L93 Difference]: Finished difference Result 2229 states and 3497 transitions. [2022-01-10 12:12:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-10 12:12:07,521 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 12:12:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:07,530 INFO L225 Difference]: With dead ends: 2229 [2022-01-10 12:12:07,531 INFO L226 Difference]: Without dead ends: 2022 [2022-01-10 12:12:07,533 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 12:12:07,535 INFO L933 BasicCegarLoop]: 1344 mSDtfsCounter, 5555 mSDsluCounter, 7451 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.4s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:07,535 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5555 Valid, 8795 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-01-10 12:12:07,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2022 states. [2022-01-10 12:12:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2022 to 827. [2022-01-10 12:12:07,636 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 12:12:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 1350 transitions. [2022-01-10 12:12:07,639 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 1350 transitions. Word has length 56 [2022-01-10 12:12:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:07,641 INFO L470 AbstractCegarLoop]: Abstraction has 827 states and 1350 transitions. [2022-01-10 12:12:07,641 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 12:12:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 1350 transitions. [2022-01-10 12:12:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:12:07,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:07,642 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 12:12:07,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 12:12:07,643 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 12:12:07,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:07,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1827886534, now seen corresponding path program 1 times [2022-01-10 12:12:07,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:07,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112867562] [2022-01-10 12:12:07,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:07,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:07,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:07,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:07,779 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112867562] [2022-01-10 12:12:07,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112867562] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:07,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:07,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:07,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825078549] [2022-01-10 12:12:07,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:07,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:07,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:07,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:07,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:07,781 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 12:12:08,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:08,166 INFO L93 Difference]: Finished difference Result 2735 states and 4433 transitions. [2022-01-10 12:12:08,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:08,167 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 12:12:08,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:08,178 INFO L225 Difference]: With dead ends: 2735 [2022-01-10 12:12:08,178 INFO L226 Difference]: Without dead ends: 2343 [2022-01-10 12:12:08,180 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 12:12:08,180 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 12:12:08,181 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 12:12:08,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2343 states. [2022-01-10 12:12:08,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2343 to 1611. [2022-01-10 12:12:08,329 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 12:12:08,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2647 transitions. [2022-01-10 12:12:08,335 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2647 transitions. Word has length 57 [2022-01-10 12:12:08,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:08,336 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2647 transitions. [2022-01-10 12:12:08,336 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 12:12:08,336 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2647 transitions. [2022-01-10 12:12:08,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:12:08,338 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:08,338 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 12:12:08,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 12:12:08,338 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 12:12:08,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:08,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1507289278, now seen corresponding path program 1 times [2022-01-10 12:12:08,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:08,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878503513] [2022-01-10 12:12:08,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:08,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:08,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:08,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:08,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878503513] [2022-01-10 12:12:08,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878503513] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:08,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:08,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 12:12:08,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315319369] [2022-01-10 12:12:08,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:08,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 12:12:08,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:08,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 12:12:08,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-10 12:12:08,493 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 12:12:08,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:08,820 INFO L93 Difference]: Finished difference Result 2865 states and 4622 transitions. [2022-01-10 12:12:08,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 12:12:08,821 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 12:12:08,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:08,828 INFO L225 Difference]: With dead ends: 2865 [2022-01-10 12:12:08,828 INFO L226 Difference]: Without dead ends: 1919 [2022-01-10 12:12:08,830 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 12:12:08,831 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 12:12:08,831 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 12:12:08,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1919 states. [2022-01-10 12:12:08,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1919 to 1611. [2022-01-10 12:12:08,972 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 12:12:08,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1611 states to 1611 states and 2631 transitions. [2022-01-10 12:12:08,977 INFO L78 Accepts]: Start accepts. Automaton has 1611 states and 2631 transitions. Word has length 57 [2022-01-10 12:12:08,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:08,978 INFO L470 AbstractCegarLoop]: Abstraction has 1611 states and 2631 transitions. [2022-01-10 12:12:08,978 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 12:12:08,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1611 states and 2631 transitions. [2022-01-10 12:12:08,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-01-10 12:12:08,979 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:08,979 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 12:12:08,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 12:12:08,980 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 12:12:08,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:08,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1703802783, now seen corresponding path program 1 times [2022-01-10 12:12:08,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:08,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026201257] [2022-01-10 12:12:08,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:08,981 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:09,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:09,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:09,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026201257] [2022-01-10 12:12:09,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026201257] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:09,076 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:09,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:09,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655392161] [2022-01-10 12:12:09,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:09,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 12:12:09,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:09,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 12:12:09,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:09,077 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 12:12:09,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:09,610 INFO L93 Difference]: Finished difference Result 5403 states and 8745 transitions. [2022-01-10 12:12:09,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 12:12:09,610 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 12:12:09,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:09,627 INFO L225 Difference]: With dead ends: 5403 [2022-01-10 12:12:09,627 INFO L226 Difference]: Without dead ends: 4637 [2022-01-10 12:12:09,630 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 12:12:09,630 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 12:12:09,631 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 12:12:09,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2022-01-10 12:12:09,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 3029. [2022-01-10 12:12:09,983 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 12:12:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3029 states to 3029 states and 4983 transitions. [2022-01-10 12:12:09,994 INFO L78 Accepts]: Start accepts. Automaton has 3029 states and 4983 transitions. Word has length 57 [2022-01-10 12:12:09,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:09,994 INFO L470 AbstractCegarLoop]: Abstraction has 3029 states and 4983 transitions. [2022-01-10 12:12:09,994 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 12:12:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 3029 states and 4983 transitions. [2022-01-10 12:12:09,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:12:09,997 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:09,997 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 12:12:09,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 12:12:09,998 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 12:12:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:09,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1385466804, now seen corresponding path program 1 times [2022-01-10 12:12:09,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:09,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993057476] [2022-01-10 12:12:09,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:09,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:10,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 12:12:10,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:10,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993057476] [2022-01-10 12:12:10,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993057476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:10,117 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:10,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-10 12:12:10,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059576406] [2022-01-10 12:12:10,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:10,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 12:12:10,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:10,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 12:12:10,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-10 12:12:10,119 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 12:12:11,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:11,575 INFO L93 Difference]: Finished difference Result 8213 states and 13123 transitions. [2022-01-10 12:12:11,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-10 12:12:11,575 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 12:12:11,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:11,603 INFO L225 Difference]: With dead ends: 8213 [2022-01-10 12:12:11,603 INFO L226 Difference]: Without dead ends: 6821 [2022-01-10 12:12:11,608 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 12:12:11,608 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, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 12:12:11,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5117 Valid, 6720 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 12:12:11,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6821 states. [2022-01-10 12:12:11,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6821 to 3909. [2022-01-10 12:12:11,968 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 12:12:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 6305 transitions. [2022-01-10 12:12:11,980 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 6305 transitions. Word has length 58 [2022-01-10 12:12:11,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:11,980 INFO L470 AbstractCegarLoop]: Abstraction has 3909 states and 6305 transitions. [2022-01-10 12:12:11,980 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 12:12:11,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 6305 transitions. [2022-01-10 12:12:11,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-01-10 12:12:11,983 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 12:12:11,983 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 12:12:11,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 12:12:11,983 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 12:12:11,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 12:12:11,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1356837653, now seen corresponding path program 1 times [2022-01-10 12:12:11,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 12:12:11,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54486985] [2022-01-10 12:12:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 12:12:11,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 12:12:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 12:12:12,068 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 12:12:12,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 12:12:12,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54486985] [2022-01-10 12:12:12,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54486985] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 12:12:12,069 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 12:12:12,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 12:12:12,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400283681] [2022-01-10 12:12:12,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 12:12:12,070 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 12:12:12,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 12:12:12,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 12:12:12,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 12:12:12,071 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 12:12:12,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 12:12:12,668 INFO L93 Difference]: Finished difference Result 5545 states and 8893 transitions. [2022-01-10 12:12:12,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 12:12:12,668 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 12:12:12,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 12:12:12,669 INFO L225 Difference]: With dead ends: 5545 [2022-01-10 12:12:12,669 INFO L226 Difference]: Without dead ends: 0 [2022-01-10 12:12:12,675 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 12:12:12,675 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 12:12:12,676 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 12:12:12,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-01-10 12:12:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-01-10 12:12:12,676 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 12:12:12,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-01-10 12:12:12,677 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2022-01-10 12:12:12,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 12:12:12,677 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-01-10 12:12:12,677 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 12:12:12,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-01-10 12:12:12,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-01-10 12:12:12,680 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (5 of 6 remaining) [2022-01-10 12:12:12,680 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 6 remaining) [2022-01-10 12:12:12,680 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (3 of 6 remaining) [2022-01-10 12:12:12,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 6 remaining) [2022-01-10 12:12:12,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (1 of 6 remaining) [2022-01-10 12:12:12,681 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (0 of 6 remaining) [2022-01-10 12:12:12,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 12:12:12,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-01-10 12:12:25,181 WARN L228 SmtUtils]: Spent 8.11s 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 12:12:37,374 WARN L228 SmtUtils]: Spent 10.43s 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)