/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInlineTransformed.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf -i ../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 23:52:00,156 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 23:52:00,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 23:52:00,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 23:52:00,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 23:52:00,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 23:52:00,212 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 23:52:00,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 23:52:00,214 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 23:52:00,215 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 23:52:00,216 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 23:52:00,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 23:52:00,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 23:52:00,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 23:52:00,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 23:52:00,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 23:52:00,220 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 23:52:00,221 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 23:52:00,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 23:52:00,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 23:52:00,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 23:52:00,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 23:52:00,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 23:52:00,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 23:52:00,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-10 23:52:00,236 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-10 23:52:00,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-10 23:52:00,237 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-10 23:52:00,238 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-10 23:52:00,239 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-10 23:52:00,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 23:52:00,239 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 23:52:00,240 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 23:52:00,241 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 23:52:00,241 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 23:52:00,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 23:52:00,242 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 23:52:00,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 23:52:00,243 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 23:52:00,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 23:52:00,244 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 23:52:00,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_BvToInt_NONE.epf [2022-01-10 23:52:00,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 23:52:00,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 23:52:00,264 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 23:52:00,264 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 23:52:00,265 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 23:52:00,265 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 23:52:00,265 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 23:52:00,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 23:52:00,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 23:52:00,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 23:52:00,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 23:52:00,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 23:52:00,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:52:00,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-10 23:52:00,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-10 23:52:00,268 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 23:52:00,268 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 23:52:00,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 23:52:00,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-01-10 23:52:00,268 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 23:52:00,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-01-10 23:52:00,269 INFO L138 SettingsManager]: * TransformationType=BV_TO_INT_NONE WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 23:52:00,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 23:52:00,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 23:52:00,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 23:52:00,494 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 23:52:00,495 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 23:52:00,496 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2022-01-10 23:52:00,553 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427c35435/aab918209aeb46d8a7462a8913a5937a/FLAG4d37e5fc5 [2022-01-10 23:52:01,081 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 23:52:01,081 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c [2022-01-10 23:52:01,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427c35435/aab918209aeb46d8a7462a8913a5937a/FLAG4d37e5fc5 [2022-01-10 23:52:01,380 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/427c35435/aab918209aeb46d8a7462a8913a5937a [2022-01-10 23:52:01,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 23:52:01,383 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-01-10 23:52:01,395 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 23:52:01,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 23:52:01,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 23:52:01,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:52:01" (1/1) ... [2022-01-10 23:52:01,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b1cb447 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:01, skipping insertion in model container [2022-01-10 23:52:01,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 11:52:01" (1/1) ... [2022-01-10 23:52:01,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 23:52:01,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:52:02,035 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 23:52:02,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:02,055 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-01-10 23:52:02,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 23:52:02,156 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 23:52:02,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:02,163 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 23:52:02,248 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/product-lines/email_spec1_product14.cil.c[62671,62684] [2022-01-10 23:52:02,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 23:52:02,283 INFO L208 MainTranslator]: Completed translation [2022-01-10 23:52:02,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02 WrapperNode [2022-01-10 23:52:02,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 23:52:02,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 23:52:02,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 23:52:02,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 23:52:02,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,433 INFO L137 Inliner]: procedures = 127, calls = 205, calls flagged for inlining = 117, calls inlined = 226, statements flattened = 3504 [2022-01-10 23:52:02,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 23:52:02,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 23:52:02,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 23:52:02,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 23:52:02,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,517 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,523 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 23:52:02,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 23:52:02,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 23:52:02,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 23:52:02,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (1/1) ... [2022-01-10 23:52:02,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 23:52:02,560 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 23:52:02,571 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 23:52:02,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 23:52:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2022-01-10 23:52:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 23:52:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 23:52:02,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 23:52:02,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 23:52:02,819 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 23:52:02,821 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 23:52:04,523 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 23:52:04,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 23:52:04,534 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-10 23:52:04,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:04 BoogieIcfgContainer [2022-01-10 23:52:04,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 23:52:04,536 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-01-10 23:52:04,537 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-01-10 23:52:04,537 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-01-10 23:52:04,540 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:04" (1/1) ... [2022-01-10 23:52:04,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:52:04 BasicIcfg [2022-01-10 23:52:04,889 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-01-10 23:52:04,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 23:52:04,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 23:52:04,892 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 23:52:04,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 11:52:01" (1/4) ... [2022-01-10 23:52:04,893 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e048e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:52:04, skipping insertion in model container [2022-01-10 23:52:04,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 11:52:02" (2/4) ... [2022-01-10 23:52:04,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e048e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 11:52:04, skipping insertion in model container [2022-01-10 23:52:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 11:52:04" (3/4) ... [2022-01-10 23:52:04,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e048e6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.01 11:52:04, skipping insertion in model container [2022-01-10 23:52:04,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 10.01 11:52:04" (4/4) ... [2022-01-10 23:52:04,895 INFO L111 eAbstractionObserver]: Analyzing ICFG email_spec1_product14.cil.cTransformedIcfg [2022-01-10 23:52:04,899 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 23:52:04,899 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-01-10 23:52:04,950 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 23:52:04,956 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 23:52:04,956 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-10 23:52:04,986 INFO L276 IsEmpty]: Start isEmpty. Operand has 833 states, 826 states have (on average 1.7070217917675545) internal successors, (1410), 832 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:04,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2022-01-10 23:52:04,996 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:04,996 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:04,997 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:05,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:05,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1586305899, now seen corresponding path program 1 times [2022-01-10 23:52:05,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:05,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460788370] [2022-01-10 23:52:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:05,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:05,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:05,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:05,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460788370] [2022-01-10 23:52:05,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460788370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:05,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:05,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:52:05,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34512227] [2022-01-10 23:52:05,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:05,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 23:52:05,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:05,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 23:52:05,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:52:05,396 INFO L87 Difference]: Start difference. First operand has 833 states, 826 states have (on average 1.7070217917675545) internal successors, (1410), 832 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:05,513 INFO L93 Difference]: Finished difference Result 1362 states and 2281 transitions. [2022-01-10 23:52:05,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 23:52:05,515 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2022-01-10 23:52:05,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:05,530 INFO L225 Difference]: With dead ends: 1362 [2022-01-10 23:52:05,530 INFO L226 Difference]: Without dead ends: 748 [2022-01-10 23:52:05,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 23:52:05,537 INFO L933 BasicCegarLoop]: 1396 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, 1396 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:05,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:05,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2022-01-10 23:52:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2022-01-10 23:52:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 742 states have (on average 1.7142857142857142) internal successors, (1272), 747 states have internal predecessors, (1272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 1272 transitions. [2022-01-10 23:52:05,601 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 1272 transitions. Word has length 51 [2022-01-10 23:52:05,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:05,602 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 1272 transitions. [2022-01-10 23:52:05,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 1272 transitions. [2022-01-10 23:52:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-01-10 23:52:05,605 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:05,605 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:05,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-10 23:52:05,605 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:05,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash -769726312, now seen corresponding path program 1 times [2022-01-10 23:52:05,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:05,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610188805] [2022-01-10 23:52:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:05,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:05,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:05,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:05,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:05,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610188805] [2022-01-10 23:52:05,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610188805] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:05,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:05,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 23:52:05,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72570991] [2022-01-10 23:52:05,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:05,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:05,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:05,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:05,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:05,821 INFO L87 Difference]: Start difference. First operand 748 states and 1272 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:05,894 INFO L93 Difference]: Finished difference Result 1089 states and 1829 transitions. [2022-01-10 23:52:05,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:05,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2022-01-10 23:52:05,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:05,903 INFO L225 Difference]: With dead ends: 1089 [2022-01-10 23:52:05,903 INFO L226 Difference]: Without dead ends: 736 [2022-01-10 23:52:05,907 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:05,908 INFO L933 BasicCegarLoop]: 1252 mSDtfsCounter, 656 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1787 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:05,908 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [656 Valid, 1787 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:05,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-10 23:52:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-01-10 23:52:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7131147540983607) internal successors, (1254), 735 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1254 transitions. [2022-01-10 23:52:05,936 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1254 transitions. Word has length 52 [2022-01-10 23:52:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:05,938 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1254 transitions. [2022-01-10 23:52:05,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:05,941 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1254 transitions. [2022-01-10 23:52:05,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-01-10 23:52:05,949 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:05,949 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:05,949 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-10 23:52:05,949 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:05,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:05,955 INFO L85 PathProgramCache]: Analyzing trace with hash -916262663, now seen corresponding path program 1 times [2022-01-10 23:52:05,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:05,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566313392] [2022-01-10 23:52:05,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:05,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:06,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:06,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:06,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566313392] [2022-01-10 23:52:06,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566313392] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:06,137 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:06,137 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:06,138 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110180206] [2022-01-10 23:52:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:06,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:06,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:06,139 INFO L87 Difference]: Start difference. First operand 736 states and 1254 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:06,225 INFO L93 Difference]: Finished difference Result 1453 states and 2480 transitions. [2022-01-10 23:52:06,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:06,226 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 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 88 [2022-01-10 23:52:06,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:06,229 INFO L225 Difference]: With dead ends: 1453 [2022-01-10 23:52:06,230 INFO L226 Difference]: Without dead ends: 736 [2022-01-10 23:52:06,232 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:06,236 INFO L933 BasicCegarLoop]: 1234 mSDtfsCounter, 1229 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1229 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:06,238 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1229 Valid, 1247 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:06,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2022-01-10 23:52:06,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 736. [2022-01-10 23:52:06,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.710382513661202) internal successors, (1252), 735 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1252 transitions. [2022-01-10 23:52:06,267 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1252 transitions. Word has length 88 [2022-01-10 23:52:06,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:06,269 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1252 transitions. [2022-01-10 23:52:06,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,269 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1252 transitions. [2022-01-10 23:52:06,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-01-10 23:52:06,273 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:06,274 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:06,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-10 23:52:06,274 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:06,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:06,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1219885625, now seen corresponding path program 1 times [2022-01-10 23:52:06,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:06,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093069385] [2022-01-10 23:52:06,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:06,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:06,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:06,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093069385] [2022-01-10 23:52:06,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093069385] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:06,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:06,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:06,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856079646] [2022-01-10 23:52:06,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:06,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:06,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:06,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:06,467 INFO L87 Difference]: Start difference. First operand 736 states and 1252 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:06,744 INFO L93 Difference]: Finished difference Result 3548 states and 6056 transitions. [2022-01-10 23:52:06,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:52:06,745 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2022-01-10 23:52:06,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:06,756 INFO L225 Difference]: With dead ends: 3548 [2022-01-10 23:52:06,756 INFO L226 Difference]: Without dead ends: 2836 [2022-01-10 23:52:06,758 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:52:06,763 INFO L933 BasicCegarLoop]: 2427 mSDtfsCounter, 6043 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6043 SdHoareTripleChecker+Valid, 6055 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:06,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6043 Valid, 6055 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:06,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2836 states. [2022-01-10 23:52:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2836 to 736. [2022-01-10 23:52:06,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.709016393442623) internal successors, (1251), 735 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1251 transitions. [2022-01-10 23:52:06,824 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1251 transitions. Word has length 90 [2022-01-10 23:52:06,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:06,824 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1251 transitions. [2022-01-10 23:52:06,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1251 transitions. [2022-01-10 23:52:06,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-01-10 23:52:06,826 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:06,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:06,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-10 23:52:06,826 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:06,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 718981127, now seen corresponding path program 1 times [2022-01-10 23:52:06,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:06,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109964965] [2022-01-10 23:52:06,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:06,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:06,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:06,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:06,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:06,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109964965] [2022-01-10 23:52:06,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109964965] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:06,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:06,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:06,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595852186] [2022-01-10 23:52:06,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:06,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:06,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:06,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:06,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:06,972 INFO L87 Difference]: Start difference. First operand 736 states and 1251 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:07,055 INFO L93 Difference]: Finished difference Result 1457 states and 2480 transitions. [2022-01-10 23:52:07,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:07,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 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 91 [2022-01-10 23:52:07,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:07,059 INFO L225 Difference]: With dead ends: 1457 [2022-01-10 23:52:07,059 INFO L226 Difference]: Without dead ends: 750 [2022-01-10 23:52:07,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:07,061 INFO L933 BasicCegarLoop]: 1265 mSDtfsCounter, 1230 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1230 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:07,061 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1230 Valid, 1287 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:07,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2022-01-10 23:52:07,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 736. [2022-01-10 23:52:07,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7076502732240437) internal successors, (1250), 735 states have internal predecessors, (1250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1250 transitions. [2022-01-10 23:52:07,117 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1250 transitions. Word has length 91 [2022-01-10 23:52:07,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:07,118 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1250 transitions. [2022-01-10 23:52:07,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,118 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1250 transitions. [2022-01-10 23:52:07,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-01-10 23:52:07,124 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:07,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:07,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-10 23:52:07,124 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:07,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:07,125 INFO L85 PathProgramCache]: Analyzing trace with hash -240954312, now seen corresponding path program 1 times [2022-01-10 23:52:07,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:07,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226652264] [2022-01-10 23:52:07,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:07,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:07,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:07,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:07,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226652264] [2022-01-10 23:52:07,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226652264] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:07,269 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:07,269 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:07,269 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927313283] [2022-01-10 23:52:07,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:07,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:07,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:07,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:07,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:07,271 INFO L87 Difference]: Start difference. First operand 736 states and 1250 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:07,499 INFO L93 Difference]: Finished difference Result 2142 states and 3650 transitions. [2022-01-10 23:52:07,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:07,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2022-01-10 23:52:07,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:07,506 INFO L225 Difference]: With dead ends: 2142 [2022-01-10 23:52:07,506 INFO L226 Difference]: Without dead ends: 1440 [2022-01-10 23:52:07,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:07,509 INFO L933 BasicCegarLoop]: 1259 mSDtfsCounter, 5966 mSDsluCounter, 1273 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5966 SdHoareTripleChecker+Valid, 2532 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:07,509 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5966 Valid, 2532 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:07,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1440 states. [2022-01-10 23:52:07,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1440 to 736. [2022-01-10 23:52:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 732 states have (on average 1.7049180327868851) internal successors, (1248), 735 states have internal predecessors, (1248), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1248 transitions. [2022-01-10 23:52:07,568 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1248 transitions. Word has length 92 [2022-01-10 23:52:07,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:07,570 INFO L470 AbstractCegarLoop]: Abstraction has 736 states and 1248 transitions. [2022-01-10 23:52:07,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 5 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:07,570 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1248 transitions. [2022-01-10 23:52:07,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2022-01-10 23:52:07,572 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:07,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:07,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-10 23:52:07,572 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:07,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:07,573 INFO L85 PathProgramCache]: Analyzing trace with hash 377665019, now seen corresponding path program 1 times [2022-01-10 23:52:07,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:07,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520557006] [2022-01-10 23:52:07,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:07,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:07,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:07,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:07,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520557006] [2022-01-10 23:52:07,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520557006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:07,759 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:07,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:52:07,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73776398] [2022-01-10 23:52:07,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:07,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:52:07,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:07,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:52:07,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:07,760 INFO L87 Difference]: Start difference. First operand 736 states and 1248 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:08,881 INFO L93 Difference]: Finished difference Result 3298 states and 5482 transitions. [2022-01-10 23:52:08,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:52:08,882 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2022-01-10 23:52:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:08,893 INFO L225 Difference]: With dead ends: 3298 [2022-01-10 23:52:08,893 INFO L226 Difference]: Without dead ends: 2917 [2022-01-10 23:52:08,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 23:52:08,895 INFO L933 BasicCegarLoop]: 1810 mSDtfsCounter, 7993 mSDsluCounter, 10630 mSDsCounter, 0 mSdLazyCounter, 695 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7993 SdHoareTripleChecker+Valid, 12440 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 695 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:08,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7993 Valid, 12440 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 695 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:52:08,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2917 states. [2022-01-10 23:52:08,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2917 to 1380. [2022-01-10 23:52:08,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1376 states have (on average 1.712936046511628) internal successors, (2357), 1379 states have internal predecessors, (2357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2357 transitions. [2022-01-10 23:52:09,002 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2357 transitions. Word has length 94 [2022-01-10 23:52:09,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:09,002 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2357 transitions. [2022-01-10 23:52:09,002 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2357 transitions. [2022-01-10 23:52:09,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 23:52:09,005 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:09,005 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:09,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-10 23:52:09,005 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:09,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:09,006 INFO L85 PathProgramCache]: Analyzing trace with hash -363203158, now seen corresponding path program 1 times [2022-01-10 23:52:09,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:09,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207374263] [2022-01-10 23:52:09,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:09,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:09,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:09,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207374263] [2022-01-10 23:52:09,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207374263] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:09,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:09,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:09,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216887946] [2022-01-10 23:52:09,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:09,095 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-10 23:52:09,095 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:09,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-10 23:52:09,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-10 23:52:09,096 INFO L87 Difference]: Start difference. First operand 1380 states and 2357 transitions. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:09,254 INFO L93 Difference]: Finished difference Result 2179 states and 3673 transitions. [2022-01-10 23:52:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:52:09,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-01-10 23:52:09,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:09,260 INFO L225 Difference]: With dead ends: 2179 [2022-01-10 23:52:09,260 INFO L226 Difference]: Without dead ends: 1747 [2022-01-10 23:52:09,262 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:09,263 INFO L933 BasicCegarLoop]: 1242 mSDtfsCounter, 1967 mSDsluCounter, 1600 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1967 SdHoareTripleChecker+Valid, 2842 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:09,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1967 Valid, 2842 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:09,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1747 states. [2022-01-10 23:52:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1747 to 1380. [2022-01-10 23:52:09,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1380 states, 1376 states have (on average 1.7122093023255813) internal successors, (2356), 1379 states have internal predecessors, (2356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1380 states to 1380 states and 2356 transitions. [2022-01-10 23:52:09,350 INFO L78 Accepts]: Start accepts. Automaton has 1380 states and 2356 transitions. Word has length 95 [2022-01-10 23:52:09,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:09,350 INFO L470 AbstractCegarLoop]: Abstraction has 1380 states and 2356 transitions. [2022-01-10 23:52:09,350 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:09,350 INFO L276 IsEmpty]: Start isEmpty. Operand 1380 states and 2356 transitions. [2022-01-10 23:52:09,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-01-10 23:52:09,352 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:09,352 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:09,352 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-10 23:52:09,352 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:09,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:09,353 INFO L85 PathProgramCache]: Analyzing trace with hash 2001145033, now seen corresponding path program 1 times [2022-01-10 23:52:09,353 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:09,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376668944] [2022-01-10 23:52:09,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:09,353 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:09,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:09,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376668944] [2022-01-10 23:52:09,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376668944] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:09,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:09,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:09,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050187106] [2022-01-10 23:52:09,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:09,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:09,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:09,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:09,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:09,498 INFO L87 Difference]: Start difference. First operand 1380 states and 2356 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:10,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:10,197 INFO L93 Difference]: Finished difference Result 4402 states and 7340 transitions. [2022-01-10 23:52:10,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:10,198 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-01-10 23:52:10,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:10,212 INFO L225 Difference]: With dead ends: 4402 [2022-01-10 23:52:10,212 INFO L226 Difference]: Without dead ends: 3808 [2022-01-10 23:52:10,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:10,215 INFO L933 BasicCegarLoop]: 3364 mSDtfsCounter, 2984 mSDsluCounter, 6433 mSDsCounter, 0 mSdLazyCounter, 366 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2984 SdHoareTripleChecker+Valid, 9797 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:10,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2984 Valid, 9797 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 366 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 23:52:10,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3808 states. [2022-01-10 23:52:10,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3808 to 1735. [2022-01-10 23:52:10,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1735 states, 1731 states have (on average 1.686886192952051) internal successors, (2920), 1734 states have internal predecessors, (2920), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1735 states to 1735 states and 2920 transitions. [2022-01-10 23:52:10,380 INFO L78 Accepts]: Start accepts. Automaton has 1735 states and 2920 transitions. Word has length 95 [2022-01-10 23:52:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:10,381 INFO L470 AbstractCegarLoop]: Abstraction has 1735 states and 2920 transitions. [2022-01-10 23:52:10,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 4 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 1735 states and 2920 transitions. [2022-01-10 23:52:10,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 23:52:10,384 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:10,384 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:10,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-10 23:52:10,385 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:10,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:10,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1172737019, now seen corresponding path program 1 times [2022-01-10 23:52:10,385 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:10,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843415059] [2022-01-10 23:52:10,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:10,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:10,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:10,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:10,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:10,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843415059] [2022-01-10 23:52:10,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843415059] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:10,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:10,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-10 23:52:10,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765467654] [2022-01-10 23:52:10,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:10,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-10 23:52:10,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:10,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-10 23:52:10,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-01-10 23:52:10,542 INFO L87 Difference]: Start difference. First operand 1735 states and 2920 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:11,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:11,863 INFO L93 Difference]: Finished difference Result 6418 states and 10606 transitions. [2022-01-10 23:52:11,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-10 23:52:11,863 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-10 23:52:11,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:11,886 INFO L225 Difference]: With dead ends: 6418 [2022-01-10 23:52:11,886 INFO L226 Difference]: Without dead ends: 5684 [2022-01-10 23:52:11,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=309, Unknown=0, NotChecked=0, Total=462 [2022-01-10 23:52:11,889 INFO L933 BasicCegarLoop]: 1639 mSDtfsCounter, 10742 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 641 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10742 SdHoareTripleChecker+Valid, 10214 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 641 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:11,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10742 Valid, 10214 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 641 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 23:52:11,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2022-01-10 23:52:12,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 3065. [2022-01-10 23:52:12,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3065 states, 3061 states have (on average 1.69421757595557) internal successors, (5186), 3064 states have internal predecessors, (5186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:12,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3065 states to 3065 states and 5186 transitions. [2022-01-10 23:52:12,187 INFO L78 Accepts]: Start accepts. Automaton has 3065 states and 5186 transitions. Word has length 96 [2022-01-10 23:52:12,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:12,187 INFO L470 AbstractCegarLoop]: Abstraction has 3065 states and 5186 transitions. [2022-01-10 23:52:12,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 8 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:12,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3065 states and 5186 transitions. [2022-01-10 23:52:12,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-01-10 23:52:12,192 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:12,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:12,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-10 23:52:12,192 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:12,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1706680155, now seen corresponding path program 1 times [2022-01-10 23:52:12,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:12,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913237203] [2022-01-10 23:52:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:12,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:12,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:12,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:12,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:12,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913237203] [2022-01-10 23:52:12,316 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913237203] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:12,316 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:12,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:12,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457301172] [2022-01-10 23:52:12,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:12,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:12,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:12,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:12,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:12,317 INFO L87 Difference]: Start difference. First operand 3065 states and 5186 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:13,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:13,618 INFO L93 Difference]: Finished difference Result 15866 states and 26623 transitions. [2022-01-10 23:52:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 96 [2022-01-10 23:52:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:13,662 INFO L225 Difference]: With dead ends: 15866 [2022-01-10 23:52:13,662 INFO L226 Difference]: Without dead ends: 14680 [2022-01-10 23:52:13,668 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:52:13,669 INFO L933 BasicCegarLoop]: 1717 mSDtfsCounter, 7008 mSDsluCounter, 6710 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7008 SdHoareTripleChecker+Valid, 8427 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:13,669 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7008 Valid, 8427 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:52:13,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14680 states. [2022-01-10 23:52:14,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14680 to 5862. [2022-01-10 23:52:14,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5862 states, 5858 states have (on average 1.6944349607374531) internal successors, (9926), 5861 states have internal predecessors, (9926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:14,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5862 states to 5862 states and 9926 transitions. [2022-01-10 23:52:14,333 INFO L78 Accepts]: Start accepts. Automaton has 5862 states and 9926 transitions. Word has length 96 [2022-01-10 23:52:14,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:14,334 INFO L470 AbstractCegarLoop]: Abstraction has 5862 states and 9926 transitions. [2022-01-10 23:52:14,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:14,334 INFO L276 IsEmpty]: Start isEmpty. Operand 5862 states and 9926 transitions. [2022-01-10 23:52:14,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 23:52:14,345 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:14,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:14,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-10 23:52:14,346 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:14,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:14,346 INFO L85 PathProgramCache]: Analyzing trace with hash -1901602129, now seen corresponding path program 1 times [2022-01-10 23:52:14,346 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:14,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105097130] [2022-01-10 23:52:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:14,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:14,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:14,490 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 23:52:14,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:14,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105097130] [2022-01-10 23:52:14,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105097130] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:14,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:14,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-10 23:52:14,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009008320] [2022-01-10 23:52:14,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:14,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-10 23:52:14,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:14,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-10 23:52:14,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-10 23:52:14,492 INFO L87 Difference]: Start difference. First operand 5862 states and 9926 transitions. Second operand has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:16,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:16,569 INFO L93 Difference]: Finished difference Result 29864 states and 50176 transitions. [2022-01-10 23:52:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-10 23:52:16,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 23:52:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:16,645 INFO L225 Difference]: With dead ends: 29864 [2022-01-10 23:52:16,645 INFO L226 Difference]: Without dead ends: 27766 [2022-01-10 23:52:16,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-01-10 23:52:16,659 INFO L933 BasicCegarLoop]: 1739 mSDtfsCounter, 6765 mSDsluCounter, 5358 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6765 SdHoareTripleChecker+Valid, 7097 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:16,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6765 Valid, 7097 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 23:52:16,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27766 states. [2022-01-10 23:52:17,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27766 to 11424. [2022-01-10 23:52:17,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11424 states, 11420 states have (on average 1.6961471103327495) internal successors, (19370), 11423 states have internal predecessors, (19370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11424 states to 11424 states and 19370 transitions. [2022-01-10 23:52:17,502 INFO L78 Accepts]: Start accepts. Automaton has 11424 states and 19370 transitions. Word has length 97 [2022-01-10 23:52:17,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:17,503 INFO L470 AbstractCegarLoop]: Abstraction has 11424 states and 19370 transitions. [2022-01-10 23:52:17,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.166666666666668) internal successors, (97), 6 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 11424 states and 19370 transitions. [2022-01-10 23:52:17,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-01-10 23:52:17,522 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:17,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:17,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-10 23:52:17,523 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:17,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:17,523 INFO L85 PathProgramCache]: Analyzing trace with hash 990082704, now seen corresponding path program 1 times [2022-01-10 23:52:17,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:17,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356070917] [2022-01-10 23:52:17,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:17,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:17,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:17,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:17,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:17,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356070917] [2022-01-10 23:52:17,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356070917] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:17,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:17,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:17,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397064921] [2022-01-10 23:52:17,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:17,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:17,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:17,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:17,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:17,642 INFO L87 Difference]: Start difference. First operand 11424 states and 19370 transitions. Second operand has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:18,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:18,362 INFO L93 Difference]: Finished difference Result 11424 states and 19370 transitions. [2022-01-10 23:52:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:18,363 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 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 97 [2022-01-10 23:52:18,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:18,380 INFO L225 Difference]: With dead ends: 11424 [2022-01-10 23:52:18,380 INFO L226 Difference]: Without dead ends: 7366 [2022-01-10 23:52:18,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:18,389 INFO L933 BasicCegarLoop]: 938 mSDtfsCounter, 868 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 2813 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:18,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [868 Valid, 2813 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:18,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7366 states. [2022-01-10 23:52:18,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7366 to 5910. [2022-01-10 23:52:18,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7703503130817397) internal successors, (10461), 5909 states have internal predecessors, (10461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10461 transitions. [2022-01-10 23:52:18,921 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10461 transitions. Word has length 97 [2022-01-10 23:52:18,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:18,921 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10461 transitions. [2022-01-10 23:52:18,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.4) internal successors, (97), 4 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10461 transitions. [2022-01-10 23:52:18,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-01-10 23:52:18,932 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:18,933 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:18,933 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-10 23:52:18,933 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:18,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:18,933 INFO L85 PathProgramCache]: Analyzing trace with hash 140669718, now seen corresponding path program 1 times [2022-01-10 23:52:18,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:18,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708456639] [2022-01-10 23:52:18,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:18,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:18,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:19,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:19,003 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:19,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708456639] [2022-01-10 23:52:19,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708456639] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:19,003 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:19,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:19,004 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215530020] [2022-01-10 23:52:19,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:19,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:19,004 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:19,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:19,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:19,005 INFO L87 Difference]: Start difference. First operand 5910 states and 10461 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:19,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:19,483 INFO L93 Difference]: Finished difference Result 7078 states and 12383 transitions. [2022-01-10 23:52:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:19,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2022-01-10 23:52:19,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:19,496 INFO L225 Difference]: With dead ends: 7078 [2022-01-10 23:52:19,497 INFO L226 Difference]: Without dead ends: 5974 [2022-01-10 23:52:19,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:19,501 INFO L933 BasicCegarLoop]: 805 mSDtfsCounter, 206 mSDsluCounter, 617 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 1422 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:19,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 1422 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2022-01-10 23:52:19,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 5910. [2022-01-10 23:52:19,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7601963107124725) internal successors, (10401), 5909 states have internal predecessors, (10401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:19,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10401 transitions. [2022-01-10 23:52:19,862 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10401 transitions. Word has length 99 [2022-01-10 23:52:19,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:19,863 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10401 transitions. [2022-01-10 23:52:19,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:19,863 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10401 transitions. [2022-01-10 23:52:19,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-01-10 23:52:19,873 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:19,873 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:19,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-10 23:52:19,873 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:19,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash 848374421, now seen corresponding path program 1 times [2022-01-10 23:52:19,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:19,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760425105] [2022-01-10 23:52:19,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:19,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:19,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:19,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:19,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760425105] [2022-01-10 23:52:19,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760425105] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:19,957 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:19,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 23:52:19,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179631647] [2022-01-10 23:52:19,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:19,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:19,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:19,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:19,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:19,959 INFO L87 Difference]: Start difference. First operand 5910 states and 10401 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:20,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:20,588 INFO L93 Difference]: Finished difference Result 17386 states and 30679 transitions. [2022-01-10 23:52:20,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-10 23:52:20,588 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-01-10 23:52:20,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:20,612 INFO L225 Difference]: With dead ends: 17386 [2022-01-10 23:52:20,612 INFO L226 Difference]: Without dead ends: 11526 [2022-01-10 23:52:20,625 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:20,626 INFO L933 BasicCegarLoop]: 1441 mSDtfsCounter, 2244 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2244 SdHoareTripleChecker+Valid, 2163 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:20,626 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2244 Valid, 2163 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 23:52:20,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11526 states. [2022-01-10 23:52:20,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11526 to 5910. [2022-01-10 23:52:20,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5910 states, 5909 states have (on average 1.7598578439668302) internal successors, (10399), 5909 states have internal predecessors, (10399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:20,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5910 states to 5910 states and 10399 transitions. [2022-01-10 23:52:20,977 INFO L78 Accepts]: Start accepts. Automaton has 5910 states and 10399 transitions. Word has length 100 [2022-01-10 23:52:20,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:20,978 INFO L470 AbstractCegarLoop]: Abstraction has 5910 states and 10399 transitions. [2022-01-10 23:52:20,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:20,978 INFO L276 IsEmpty]: Start isEmpty. Operand 5910 states and 10399 transitions. [2022-01-10 23:52:20,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-01-10 23:52:20,988 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:20,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:20,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-10 23:52:20,989 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:20,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:20,989 INFO L85 PathProgramCache]: Analyzing trace with hash -73405521, now seen corresponding path program 1 times [2022-01-10 23:52:20,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:20,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133188619] [2022-01-10 23:52:20,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:20,989 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:21,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:21,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:21,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133188619] [2022-01-10 23:52:21,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133188619] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:21,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:21,097 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:21,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707251309] [2022-01-10 23:52:21,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:21,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:21,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:21,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:21,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:21,098 INFO L87 Difference]: Start difference. First operand 5910 states and 10399 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:21,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:21,719 INFO L93 Difference]: Finished difference Result 13238 states and 23133 transitions. [2022-01-10 23:52:21,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 23:52:21,719 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 101 [2022-01-10 23:52:21,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:21,732 INFO L225 Difference]: With dead ends: 13238 [2022-01-10 23:52:21,732 INFO L226 Difference]: Without dead ends: 11734 [2022-01-10 23:52:21,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-10 23:52:21,736 INFO L933 BasicCegarLoop]: 842 mSDtfsCounter, 730 mSDsluCounter, 2396 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 730 SdHoareTripleChecker+Valid, 3238 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:21,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [730 Valid, 3238 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:21,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2022-01-10 23:52:22,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 10230. [2022-01-10 23:52:22,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10230 states, 10229 states have (on average 1.776419982402972) internal successors, (18171), 10229 states have internal predecessors, (18171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10230 states to 10230 states and 18171 transitions. [2022-01-10 23:52:22,235 INFO L78 Accepts]: Start accepts. Automaton has 10230 states and 18171 transitions. Word has length 101 [2022-01-10 23:52:22,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:22,235 INFO L470 AbstractCegarLoop]: Abstraction has 10230 states and 18171 transitions. [2022-01-10 23:52:22,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10230 states and 18171 transitions. [2022-01-10 23:52:22,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-01-10 23:52:22,250 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:22,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:22,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-10 23:52:22,251 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:22,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:22,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1248662221, now seen corresponding path program 1 times [2022-01-10 23:52:22,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:22,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386568880] [2022-01-10 23:52:22,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:22,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:22,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:22,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:22,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386568880] [2022-01-10 23:52:22,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [386568880] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:22,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:22,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:22,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602431644] [2022-01-10 23:52:22,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:22,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:22,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:22,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:22,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:22,357 INFO L87 Difference]: Start difference. First operand 10230 states and 18171 transitions. Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:23,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:23,397 INFO L93 Difference]: Finished difference Result 21838 states and 38637 transitions. [2022-01-10 23:52:23,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:23,398 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2022-01-10 23:52:23,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:23,430 INFO L225 Difference]: With dead ends: 21838 [2022-01-10 23:52:23,430 INFO L226 Difference]: Without dead ends: 20374 [2022-01-10 23:52:23,439 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:23,439 INFO L933 BasicCegarLoop]: 764 mSDtfsCounter, 727 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:23,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 3004 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:23,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20374 states. [2022-01-10 23:52:24,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20374 to 18890. [2022-01-10 23:52:24,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18890 states, 18889 states have (on average 1.7891365344909735) internal successors, (33795), 18889 states have internal predecessors, (33795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:24,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18890 states to 18890 states and 33795 transitions. [2022-01-10 23:52:24,598 INFO L78 Accepts]: Start accepts. Automaton has 18890 states and 33795 transitions. Word has length 102 [2022-01-10 23:52:24,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:24,598 INFO L470 AbstractCegarLoop]: Abstraction has 18890 states and 33795 transitions. [2022-01-10 23:52:24,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:24,599 INFO L276 IsEmpty]: Start isEmpty. Operand 18890 states and 33795 transitions. [2022-01-10 23:52:24,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-01-10 23:52:24,620 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:24,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:24,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-10 23:52:24,620 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:24,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:24,621 INFO L85 PathProgramCache]: Analyzing trace with hash 2112296479, now seen corresponding path program 1 times [2022-01-10 23:52:24,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:24,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058921511] [2022-01-10 23:52:24,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:24,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:24,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:24,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058921511] [2022-01-10 23:52:24,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058921511] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:24,727 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:24,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-10 23:52:24,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424386401] [2022-01-10 23:52:24,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:24,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 23:52:24,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:24,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 23:52:24,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-10 23:52:24,728 INFO L87 Difference]: Start difference. First operand 18890 states and 33795 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:26,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:26,319 INFO L93 Difference]: Finished difference Result 39158 states and 69885 transitions. [2022-01-10 23:52:26,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 23:52:26,320 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 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 103 [2022-01-10 23:52:26,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:26,378 INFO L225 Difference]: With dead ends: 39158 [2022-01-10 23:52:26,378 INFO L226 Difference]: Without dead ends: 37510 [2022-01-10 23:52:26,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-10 23:52:26,393 INFO L933 BasicCegarLoop]: 764 mSDtfsCounter, 726 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 3004 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:26,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 3004 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:26,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37510 states. [2022-01-10 23:52:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37510 to 36046. [2022-01-10 23:52:28,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36046 states, 36045 states have (on average 1.7967263143293106) internal successors, (64763), 36045 states have internal predecessors, (64763), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:28,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36046 states to 36046 states and 64763 transitions. [2022-01-10 23:52:28,096 INFO L78 Accepts]: Start accepts. Automaton has 36046 states and 64763 transitions. Word has length 103 [2022-01-10 23:52:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:28,096 INFO L470 AbstractCegarLoop]: Abstraction has 36046 states and 64763 transitions. [2022-01-10 23:52:28,096 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 36046 states and 64763 transitions. [2022-01-10 23:52:28,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-01-10 23:52:28,137 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:28,137 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:28,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-10 23:52:28,137 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:28,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:28,138 INFO L85 PathProgramCache]: Analyzing trace with hash 804162011, now seen corresponding path program 1 times [2022-01-10 23:52:28,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:28,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319189681] [2022-01-10 23:52:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:28,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:28,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:28,216 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:28,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319189681] [2022-01-10 23:52:28,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319189681] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:28,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:28,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:28,217 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83152415] [2022-01-10 23:52:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:28,217 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:28,217 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:28,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:28,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:28,218 INFO L87 Difference]: Start difference. First operand 36046 states and 64763 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:31,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:31,294 INFO L93 Difference]: Finished difference Result 101310 states and 181789 transitions. [2022-01-10 23:52:31,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:31,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 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 125 [2022-01-10 23:52:31,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:31,413 INFO L225 Difference]: With dead ends: 101310 [2022-01-10 23:52:31,414 INFO L226 Difference]: Without dead ends: 65350 [2022-01-10 23:52:31,457 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:31,458 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 714 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 1432 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:31,458 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [714 Valid, 1432 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:31,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65350 states. [2022-01-10 23:52:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65350 to 62798. [2022-01-10 23:52:34,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62798 states, 62797 states have (on average 1.8010255266971351) internal successors, (113099), 62797 states have internal predecessors, (113099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:34,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62798 states to 62798 states and 113099 transitions. [2022-01-10 23:52:34,671 INFO L78 Accepts]: Start accepts. Automaton has 62798 states and 113099 transitions. Word has length 125 [2022-01-10 23:52:34,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:34,671 INFO L470 AbstractCegarLoop]: Abstraction has 62798 states and 113099 transitions. [2022-01-10 23:52:34,671 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 62798 states and 113099 transitions. [2022-01-10 23:52:34,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-01-10 23:52:34,968 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:34,968 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:34,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-10 23:52:34,968 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:34,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:34,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1118084626, now seen corresponding path program 1 times [2022-01-10 23:52:34,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:34,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711097634] [2022-01-10 23:52:34,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:34,971 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:35,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:35,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:35,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:35,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711097634] [2022-01-10 23:52:35,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711097634] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:35,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:35,042 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:35,042 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351955413] [2022-01-10 23:52:35,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:35,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:35,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:35,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:35,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:35,043 INFO L87 Difference]: Start difference. First operand 62798 states and 113099 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:40,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:40,654 INFO L93 Difference]: Finished difference Result 187966 states and 338573 transitions. [2022-01-10 23:52:40,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:40,654 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2022-01-10 23:52:40,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:40,905 INFO L225 Difference]: With dead ends: 187966 [2022-01-10 23:52:40,905 INFO L226 Difference]: Without dead ends: 125254 [2022-01-10 23:52:40,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:40,972 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 712 mSDsluCounter, 761 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 1526 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:52:40,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 1526 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:52:41,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125254 states. [2022-01-10 23:52:46,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125254 to 122702. [2022-01-10 23:52:47,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122702 states, 122701 states have (on average 1.8045411202842683) internal successors, (221419), 122701 states have internal predecessors, (221419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:47,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122702 states to 122702 states and 221419 transitions. [2022-01-10 23:52:47,594 INFO L78 Accepts]: Start accepts. Automaton has 122702 states and 221419 transitions. Word has length 126 [2022-01-10 23:52:47,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 23:52:47,595 INFO L470 AbstractCegarLoop]: Abstraction has 122702 states and 221419 transitions. [2022-01-10 23:52:47,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:47,595 INFO L276 IsEmpty]: Start isEmpty. Operand 122702 states and 221419 transitions. [2022-01-10 23:52:47,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-01-10 23:52:47,705 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 23:52:47,705 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 23:52:47,705 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-10 23:52:47,706 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2022-01-10 23:52:47,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 23:52:47,706 INFO L85 PathProgramCache]: Analyzing trace with hash -745003340, now seen corresponding path program 1 times [2022-01-10 23:52:47,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-10 23:52:47,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410562372] [2022-01-10 23:52:47,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 23:52:47,707 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-10 23:52:47,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 23:52:47,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 23:52:47,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-10 23:52:47,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410562372] [2022-01-10 23:52:47,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410562372] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 23:52:47,772 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 23:52:47,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-10 23:52:47,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501295489] [2022-01-10 23:52:47,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 23:52:47,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-10 23:52:47,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-10 23:52:47,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-10 23:52:47,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:52:47,775 INFO L87 Difference]: Start difference. First operand 122702 states and 221419 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 23:52:59,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 23:52:59,150 INFO L93 Difference]: Finished difference Result 364862 states and 658925 transitions. [2022-01-10 23:52:59,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-10 23:52:59,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 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 127 [2022-01-10 23:52:59,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 23:52:59,906 INFO L225 Difference]: With dead ends: 364862 [2022-01-10 23:52:59,906 INFO L226 Difference]: Without dead ends: 242246 [2022-01-10 23:53:00,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-10 23:53:00,042 INFO L933 BasicCegarLoop]: 765 mSDtfsCounter, 710 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 23:53:00,043 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [710 Valid, 1518 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 23:53:00,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242246 states.